* Doctor of Plant Medicine Degree Program
* Interviews with Visiting Scientists
* Faculty, staff, and students
* Leisure, Culture, and Sports in Gainesville.
The Newsltter of
the Plant '
Volume 3-Issue 8
Around Florida: Major Disease
Concerns of Growers and Extension Agents
Control of Aphid-Transmitted Viruses in Squash
By Tom Kucharek
The farm market value of
squash in Florida for the 1997-1998 sea-
son was $54,514,000. This was nearly an
81'" increase in actual value compared to
the 1983-1984 season and was accom-
plished on 26.5% less acreage. The yield
per acre, measured as 42-lb bushels, is
-4".. greater for the latter season com-
pared to the former season. This appar-
ent improved efficiency is the result of
improved pedigrees, including some with
various levels of resistance to predomi-
nant aphid-transmitted viruses, improved
techniques for production, the produc-
tion of the crop by fewer, but more effi-
cient, growers, and a market value that is
68.9% higher per bushel. In recent years,
more than 75% of the acreage of squash
in Florida is located in the southern one
third of the peninsula. Typically squash
is produced on farms with mixed crops,
usually other vegetables. Most of the
squash produced in Florida is summer,
yellow types with zucchini types rapidly
on the increase. Winter squash types,
such as butternut, acom and others, are
produced in a limited amount in Florida.
While a few might include pumpkins in
the "squash family", they are produced
with difficulty on an extremely small
acreage in Florida and they are not in-
cluded in the market figures above.
While numerous diseases in-
cluding downy mildew, powdery mildew,
Phytophthora fruit and crown rot, cot-
tony leak and gummy stem blight (typi-
cally seen as the black rot phase in winter
squash types in Florida) occur in squash
in Florida, it is the occurrence of aphid
transmitted viruses that has caused most
of the erratic uncertainties for marketing
when one considers plant diseases. The
major viruses are papaya ringspot virus
type W (PRSV-W), watermelon mosaic
two (W IV2), and zucchini yellow mo-
saic virus (ZYMV). Typically PRSV-W
has its greatest negative impact the
southern half of Florida, but it can im-
pact production of squash in northern
Florida. The two viruses that are most
likely to impact squash in northern Flor-
ida are W IV2 and ZYMV. A few other
viruses, including cucumber mosaic virus
(CMV), are also present in Florida, but
they have not predominated in squash as
have the three major viruses.
For decades the control of these
viruses was not possible. However, over
the past 25 years or so we have learned a
few things that have allowed us to reduce
their impact. An entomologist at the
Leesburg AREC, Dr. Warren Adlrez,
taught us the importance of eliminating
weed to be highly associated with epi-
demics of PRSV-W. Other weeds such
as balsam apple were also found to be
associated with epidemics of PSRV-W in
Florida. Dozens of other plant species
are susceptible to this virus, but creeping
cucumber and balsam apple are major
hosts for this virus.
In 1977, a novel method of
control for aphid-transmitted, cucurbit
viruses and other viruses in other crops
was registered by Dr. John Simons. As a
private entrepreneur, he advanced the
concept of using a spray oil to interfere
with acquisition and transmission of
aphid-transmitted viruses. This tech-
nique works, but the cost, frequency of
sprays, incompatibility with other chemi-
cals used in a spray program, and the
2 PLP NEWS
logistics associated with the required use
of high spray pressure has gradually
caused a reduction in its use for this pur-
pose in Florida. Also, some controversy
p! iiti..'-- il- in California) has been asso-
ciated with the efficacy of his oil (JMS
Stylet Oil) against aphid-transmitted vi-
ruses. However, this oil has been used
successfully for control of aphid-
transmitted viruses and for other pur-
Over the years, numerous, non-
chemical tactics for suppression of this
virus complex have evolved. The use of
reflective mulches, row covers, and many
other methods have been used or rec-
ommended, but for this disease complex,
the need for resistance within the host
plant is paramount. For a more com-
plete treatise on these issues and other
aspects of this virus complex, the Uni-
versity of Florida Circular 1184 is avail-
Beginning in the early 1980's,
certain cultivars of summer squash, be-
came available from commercial industry
that reduced damage caused by aphid-
transmitted viruses. One such cultivar,
Multipik, had significantly reduced dam-
age to the fruit as determined with stud-
ies by Drs. Warren Adlerz, Gary Elm-
strom and Dan Purcifull. This resistance
became available because of the use of
"the yellow gene". The plant is still sus-
ceptible and displays symptoms in the
leaves, but symptoms in the fruit typically
are delayed. This allows for the harvest-
ing and sale of some fruit even though
the plants are susceptible. Many culti-
vars are now available that possess this
gene. In on-farm studies that I have
conducted with Dr. Purcifull, we have
consistently attained delayed onset of
symptoms in plants of multiple cultivars
that possessed the yellow gene while be-
ing exposed to WMV2, ZYMV, and
In 1996, coat protein mediated
resistance for WMV2, ZYMV, and
CMV, became available for study. Dr.
Purcifull and I have measured phenome-
nal reductions of viral symptoms to
W W2 and ZYMV in three years of
tests with these transgenic cultivars in
Madison County. As expected, when
PRSV-W occurred at our test site,
symptoms appeared in some of the fruit.
Dr. Susan Webb has had similar success
in her tests in Lake County. Mendelian
or transgenic resistance to PRSV-W has
apparently been more difficult to attain,
but such resistance is on its way.
This extremely brief chronicle
depicts that some gains in controlling a
most difficult composite of viruses has
occurred over a long period of time, but
the real success is with the acceptance of
these technological gains by the grower,
buyer, and consumer. The grower and
buyer must be satisfied with the horti-
cultural characteristics of these pedigrees.
The consumer must also accept these
pedigrees, but in the event you have been
sleeping, the use of transgenics continues
to be met with a great deal of uncertainty,
worldwide. The development of these
transgenics has incurred the wrath of
those who oppose anything new as well
as those who buy into the arguments that
paint the picture that all transgenics are
another coming of Frankenstein's mon-
ster. Besides the normal and acceptable
discussions that evaluate this "new"
technique for safety and regulatory pur-
poses, developers of this germ plasm
have had to face pickets and military-like
harassment from those who pretend to
be protectors of our environment. Like
Hurricane Dennis, progress has been
slow and our future direction for suc-
cessful control of curcurbit viruses is
Faculty, staff, students,
alumni, and colleagues of our
lations and best wishes!
Xiomara Sinisterra suc-
cessfully defended her dissertation,
"Evaluation and characterization of re-
sistance to tomato mottle virus (ToMoV)
) : -
Polston from the
GREC at Bradenton,
graduated this sum-
mer, with a disserta-
tion entitled "Multi-
for bioherbicidal con-
trol of several weeds". His adviser was
Dr. Charudattan. Chandra is currently
working as a Postdoctoral associate in
Charu's lab, he is now developing a
mixture of Fusarium spp. for the bio-
control of hydrilla.
Simone Tudor defended her disserta-
tivity in tomato
race-three strains of
tns pv. vesicatoria,
S on August 17. Si-
were Dr. Robert Stall and Dr. Jeff Jones.
She recently accepted a post-doctoral
position at Washington University at St.
The Joint meetings of the APS and
the Canadian Phytopathological So-
ciety were held in Montreal, Canada
Aug 7-11, 1999. Those who attended the
meetings were: Dr. Agrios, Dr.
, . .. .
3 PLP NEWS
Kucharek, Dr. Jones, Dr.Bartz, Dr.
Gabriel, Dr. Wyss, Chuck Semer, Bob
Kemerait, Alvaro Urena, S. Chandramo-
han, Yolanda Petersen, A. Wahid Al-
Saadi, Ricardo Harakava, Gustavo As-
tua-Monge, and Juliana Freitas-Astua.
Dr. Charudattan (UF) and Dr. Chel-
lemi (USDA) attended the XIV Inter-
national Plant Protection Congress
(IPPC) last July 25-30, 1999 in Jerusalem,
Francisco Ochoa moved to Lake Al-
fred, FL this summer. He will work at
the lab of his adviser, Dr. Richard Lee at
the Citrus Research and Educational
Center. His adviser in Gainesville is Dr.
Coffee Break Schedule and
Birthdays for September 1999
Friday Coffee Break
and Song's Labs
9-10 Pring's and
9-17 Niblett's Lab
9-24 Simone's and
10-1 Bartz's and Berger's Labs
9/1 Lauretta Rhames
9/7 Mariadaniela Lopez
9/19 Jim DeValerio
9/26 Terry Davoli
9/29 Deiane Concelmo
Doctor of Plant Medicine De-
gree Program offered by The
College of Agriculture
On July 16, 1999, the Board of regents of
the Universities of Florida gave final ap-
proval to the proposal
of the College of Ag-
riculture at the Uni-
versity of Florida to
offer the Doctor of
Plant Medicine (DPM) degree Program.
We are now proceeding with admission
of students to the DPM Program to be-
gin classes in August 2000.
The Doctor of Plant Medicine
Degree Program is a 3-year post-
baccalaureate, graduate, interdisciplinary
and interdepartmental, professional prac-
titioners degree program. Its purpose is
to educate and train practitioner plant
doctors that will parallel the MDs and
veterinarians of the sister professions in
Medicine and Veterinary Medicine.
Graduates of the DPM program will not
be or become researchers. They will,
instead, be trained to diagnose, and to
offer recommendations for management-
control, of anything that
Adversely affects plants:
disease pathogens (fungi,
bacteria, viruses, phyto-
plasmas), insects, mites,
nematodes, nutrient de-
ficiencies and toxicities, toxic air and soil
pollutants, weeds, pH, temperature, and
water extremes, vertebrate pests of plants
such as birds, gophers and field mice, etc.
The DPM degree program will
be housed at first in the Plant Pathology
Department of the University of Florida.
The DPM degree will not be a Plant Pa-
thology degree, however, but rather, an
interdisciplinary, interdepartmental de-
gree conferred by the College of Agri-
The DPM program requires 90
semester credits of graduate course work
plus 30 semester credits of internship.
The courses are offered by the various
departments that deal with plant produc-
tion and plant protection, as well as in
departments that deal with oral and
written communication, business man-
agement, agricultural law, etc. The in-
temship will consist of modules of a few
weeks each spent with extension plant
pathologists, nematologists, entomolo-
gists, weed scientists, horticulturists, plant
protection specialist County Agents, pes-
ticide companies, seed companies, large
Admission to the DPM Pro-
gram requires the same standards as ad-
mission to Graduate School for the M.S.
or Ph.D. degree. Upon successful com-
pletion of the coursework and the intern-
ship, students must pass a comprehen-
sive examination in plant pathology, en-
tomology, and plant science. Following
graduation they must also take, and pass,
an examination before a State Licensing
Graduates of the DPM program
are expected to find employment as pri-
vate practitioners; as county or multi-
county plant protection specialists and as
state Plant Disease
Clinic directors em-
ployed by the Exten-
sion Service; as federal
and state plant health
regulatory inspectors; as state Integrated
Pest Management (IPM) coordinators; as
plant protection specialists and sales rep-
resentatives by the pesticide industries
and by seed companies; by large agri-
businesses; by grower groups and grower
cooperatives; by municipalities for pro-
tection of their parks, lawns, shrubs,
flower beds, and street trees, etc.
International students planning
to return and work in their countries,
where there are usually few or no spe-
cialists available to answer each question,
may find the Doctor of Plant Medicine
degree program particularly useful in that
it would provide them with broad exper-
tise to solve all types of plant health
problems in the absence of specialist
pathologists, entomologists, weed scien-
4 PLP NEWS
Plant doctors are expected to
provide a greatly needed truly expert
service to commercial and urban plant
growers, and to the agricultural and gen-
eral economy of the state and of the na-
tion. They will also help to better pro-
tect our environment and water supplies
of the areas in
which they are
this by making correct diagnoses of plant
problems and by prescribing the best,
scientifically determined treatment to
each problem, utilizing the most effective
and minimum necessary amounts of
treatment materials, applied in the most
effective and safe way.
For more information and ap-
plication materials contact:
Dr. George Agrios, Director
Doctor of Plant Medicine Degree
University of Florida
1453 Fifield Hall
Gainesville, FL 32611-0680
Who S 1 ,..'
No, it's not another Florida theme park,
it's the nickname of Dr. Ronald H.
Brlansky's Lab. Dr. Brlansky's lab is
part of the CREC (Citrus Research and
Education Center) in Lake Alfred. The
CREC is the largest of the University of
Florida Research Stations and its efforts
center around Florida's $8 billion citrus
industry. Dr. Brlansky's lab is currently
focused on the cytopathology of citrus
diseases caused by viruses and unusual
plant pathogens (fatidious prokaryotes.)
Dr. Brlansky is a native of Texas who
earned his B.S. in zoology from Texas
A&M. He went on to receive his M.S. in
Plant Pathology from Texas A&M and
then earned his Ph.D. in Plant Pathology
from Louisiana State University. He
worked as a plant pathologist at Montana
State University before coming in 1979
to the CREC to work on citrus tristeza
citrus blight diseases. Currently, Dr.
Brlansky is working on the detection of
disease causing agents in both plant and
insect vectors using novel methods that
often include light and electron micros-
copy. His research interests include the
transmission of plant viruses and unusual
pathogens by insect vectors and virus-
vector interactions. He also is involved
with researching foreign diseases of cit-
rus that have the potential of being intro-
duced into the U.S. He also has an inter-
est in in situ visualization of viral and
viroid nucleic acids and hopes that the
Florida citrus industry will benefit from
his work. In his free time, Dr. Brlansky
enjoys boating, fishing and hiking. He
took his sabbatical in Australia and
would like to return there someday.
Deborah Howd is the Senior Biological
Scientist in Dr. Brlansky's lab. She earned
her B.S. in biology from the University of
Central Florida and currently works on
aphid transmission of citrus tristeza and
the characterization of viruses isolated
from trees with citrus blight. Her other
research interests include working with
light and electron microscopy of plant
pathogens. In her free time, she enjoys
cooking and photography.
Jennifer Wisnesky is currently attending
night school while working as OPS tech-
nical in Dr. Brlansky's lab. She works
with aphid transmission of viruses and
grows and cares for research plants as
well as the preparation of samples for
ELISA. Outside of work, she enjoys go-
ing out with friends, shopping and
spending time with her family.
Travis Roland is currently working as
OPS technical in Dr. Brlansky's lab. He
cares for greenhouse plants and samples
field trees for lab assays as well as general
lab work. In his free time, he likes to
work on and drive stock cars. He com-
petes in local races and is also remodel-
ing his new home.
Graeme Lindbeck is a post-doctoral
researcher for the summer in Dr. Brlan-
sky's lab and a lectureer in biology at the
University of Central Florida. She earned
her Ph.D. in biology/plant physiology
from the University of Newcastle, Aus-
tralia. Her current research focuses on
cytopathic changes in trees with citrus
blight and searching for the causal agent.
Her free time is spent working on and
building computers as well as travel and
playing with her daughter, Erica.
Did you know????
* Dr. Brlansky has traveled to several
citrus growing areas of the world?
* He has a dalmatian dog named Pixel?
* Deborah Howd trains and shows
Brittanys and Labrador Retrievers?
* She wants to win the lottery and never
* Jennifer Wisnesky is expecting her
first baby in October?
* She wants to go skydiving (hopefully
not until after October!!)
* Travis Roland is getting married in
* He dreams of driving in the Daytona
500 -and winning!?
* Graeme Lindbeck hopes to write a
5 PLP NEWS
* She has a dog named Tigger and a
cockatiel named Charlie?
From the Field: Greetings from
Quebec! Wished you were
By Bob Kemerait Jr.
Bon jour, and merci! These words con-
stitute my entire knowledge of the
French language and I used them often
and with pride while attending the annual
meeting of the American Phytopa-
1 theological Society in
Montreal, Quebec from
< August 7 through August
11. This gathering of Yan-
kee plant pathologists was held in con-
junction with the Canadian Phytopa-
thological Society for the first time in a
number of years. The general theme for
the meeting was "Plant Health: Meeting
the Challenges" and scientists from the
United States, Canada, and many other
countries had the opportunity to discuss
the future importance of our discipline in
the coming century.
The official sessions were located in the
Palais des Congres de Montreal, which I
think translates to "convention center."
This wonderful facility was well suited
for a meeting such as ours and is situated
in the historic and beautiful downtown
area of old Montreal. Although a few
sessions occurred on both Friday the 6th
and Saturday the 7th, most attendees did
not arrive until the afternoon of the 7th.
The meeting was attended by more than
thirty members from our department.
Posters and papers were presented by
students, USPS staff, and by faculty
members. The meeting was attended
also by several recent graduates including
Drs. Erin Rosskopf, Tim Widmer, Gus-
tavo Astua-Monge, and Kenny Seebold.
Erin now works for the USDA in Ft.
Pierce; Tim is completing a post-doc at
Comell University; Gustavo is working
on a post-doc in horticultural sciences
here at UF, and Kenny is the chief plant
pathologist for Uniroyal Chemical Com-
pany in Connecticut. Recent post-doc
here in Gainesville, Liane Rosewich, was
also present. A departmental reception
was held on Monday evening for the
alumni of the University of Florida and it
gave Gators from across the nation the
chance to gather and renew old friend-
ships. Gustavo and Dr. Lawrence Dat-
noff were given the very important re-
sponsibility of doling out the beer cou-
pons. I am happy to report that they
fulfilled their duties with enthusiasm,
dedication, and goodwill.
The opening plenary session was entitled
"The Economic and Social Impacts of
Plant Diseases" which gave moving ac-
counts of the plight of farmers in the
United States who are affected by crop
loss due to plant disease. One speaker
described the global challenges that face
food producers as we enter the next
century. Others spoke of the impact of a
specific disease, Fusarium head blight, on
growers in the northern Great Plains.
This session set the stage for a number
of other symposia that followed. The
symposia sought to place plant pathology
in the context of greater world problems
including politics and social issues. Some
of the sessions included discussions
about the value of food/feed safety and
environmental stewardship, implementa-
tion of regional disease warning systems,
the movement of pathogens across inter-
national boundaries, and plant pathol-
(._--'.; role in anti-crop bioterrorism and
food security. These broad topics gave
some participants from the University of
Florida the impression that the meeting,
while iniri e. ri,,i_. was somewhat soft on
scientific content. Others disagreed with
this and felt that there were many out-
standing papers and posters presented
that dealt with important research cur-
rently conducted in plant pathology.
The APS Graduate Student Committee
meeting was held on the evening of Sun-
day, August 8th, and was attended by
approximately 30 students from univer-
sities across the United States. The two
main topics for discussion were student
travel grants for future APS meetings
and ways to encourage more students to
become active in the APS. Every year
the APS Foundation provides travel
grants to help students cover the costs of
attending the national meeting. This
year, the size of the award increased from
$350 to : 4" i There were approximately
45 applicants for a total of 21 awards. It
is hoped that additional awards will be
available next year. The current applica-
tion requirements include a copy of the
abstract of the poster or paper to be pre-
sented, a letter of support from your ad-
visor, and an essay on ways that the APS
can improve service to the students. The
application packet is then reviewed and
judged by a selections committee. The
second topic of conversation was to try
and figure out how to encourage more
students to become members of the
APS. Currently, a student membership
in the society is only $15 per year, which
includes a subscription to the monthly
newsletter P--r. p irl-....1.- NEWS.
Membership also allows access to many
other services including the important
job placement service. One popular idea
for increasing student participation is a
waiver of society dues for the first, and
perhaps second, year of membership.
One of the most important aspects of the
annual meeting for many students is the
job placement service and the ability to
interact with prospective
employers. The APS had
a room set up this year
where employers looking
to hire students, both at
the Master's and Ph.D.
levels, left job descriptions and students
looking for positions could leave re-
sumes. Jobs in industry, internships,
post-docs, and faculty positions were all
6 PLP NEWS
available. It seemed that a significant
number of these jobs sought plant pa-
thologists in the more applied areas,
though many of these positions also re-
quested experience with molecular tech-
niques. Potential employers were avail-
able for interviews and for informal dis-
No description of the meetings would be
complete without mention of the won-
derful city of Montreal. I am afraid to
say that I had always viewed Canada as
the northem United States. It is not. As
Kenny Seebold and I discussed, Montreal
looked so familiar that you could believe
that you were at home. However there
are differences, subtle and not-so-subtle,
that continually pop up, keeping you off
balance as if in a parallel world of the
twilight zone. The most obvious differ-
ence in Quebec was the language.
French was spoken everywhere and all of
the signs were equally unintelligible. My
basic understanding of Spanish was im-
mediately useless. Fortunately, all of the
citizens of Montreal seemed to be bilin-
gual and happily and readily switched
their speech to English. I had expected
them to be reluctant to talk to me in
English but this was not the case, espe-
cially when I was spending money. An-
other pleasant difference was a lack of
what I will refer to as "attitude." You
find it everywhere in the U.S.- at the
checkout counter, in traffic, at the post
office, sporting events, etc.,etc.,etc.. I did
not experience any "attitude" or rudeness
in Montreal. The staff at the convention
center was friendly, polite, and helpful.
The hotel staff was likewise and many
changed rapidly between Chinese,
French, and English languages. The av-
erage citizens on the street appeared tol-
erant of each other and of other cultures.
They seemed too busy enjoying them-
selves to be much worried about differ-
ences in those around them. At tourist
spots around the city, groups of young
children would push excitedly and noisily
past you, without the wariness or sullen
reserve of many American children.
The part of Montreal in which we stayed
was beautiful, filled with elegant
churches and historic government
buildings. Small shops and restaurants
filled a vibrant downtown area that
pulsed with streams of people both day
and night. Spectators gathered in the
cool evening dusk to watch magicians
and sidewalk performers entertain them.
And, oh yes, the weather! August is the
warmest month in Montreal, with high
temperatures in the middle 70's. It really
made it hard to return to the humidity
and heat of Florida!
In conclusion, almost all of the people
from Florida who attended had a good
time and seemed to have been fairly sat-
isfied with the content of the conference.
For those students who presented papers
or posters, the meeting provided an ex-
cellent opportunity to be a part of the
larger scientific community. Even those
students who did not present appeared
very happy to have been able to attend.
While at the meetings the students were
able to meet important scientists from
their area of research and to immerse
themselves for a week in the diversity of
plant pathology. As they say in Canada,
"Bon jour, and merci..........."
Leisure and Culture in
September '99 and Beyond
i...I._r Rauschenberg: The Chines
Summerhall Series." Ex-
hibition on display
j |1 through September 26,
1999. Call 392-9826.
"Asian Art from the
Permanent Collection" on display in the
Harn Museum through January 2000.
* "Equal Partners" on display in the
Ham Museum through November 28.
* Christian Rock Concert: Caedmon's
Call at the Center for the Performing
Arts, 318 Hull Road. Call 392-2787.
* The works of Isamu Noguchi on dis-
play at Ham Museum through Septem-
ber 26, 1999.
* "Secular/Spiritual Identities: the Blues
in the Art of Robert John Holland,
Roberto Ponzio, Phoenix Savage and
Renee Stout". On display at the Univer-
sity Gallery. Call 392-0201, ext. 228 for
* "Masters of the Night: The True Story
of Bats", at the Florida Museum of
Natural History. Through September 6.
* "Two Centuries of American Draw-
ings" on display in the Ham Museum
through November 28. Call 392-9826.
* "American Impressionism from the
Sheldon Memorial Art Gallery" on dis-
play in the Harn Museum through Janu-
ary 2. Call 392-9826.
* "EarthQuest; The Challenge Begins",
at the Florida Museum of Natural His-
tory. Thorugh January 30. Call 846-2000.
* "Children's Natural History Gallery", at
the Florida Museum of Natural History.
Through January 30. Call 846-2000.
* "ZZ Top and Lynard Skynard at the
O'Connell Center. Tickets
available through the Uni-
versity Box Office and all
Call 392-5500. September
* Lenny Kravitz with Smash Mouth
and Buckcherry, at the O'Connell Center.
Tickets available through the University
Box Office and TicketMaster. September
UF Sporting Events for
For any Sporting Events, call
375-4683 for more information!
7 PLP NEWS
September 1, Wednesday
Volleyball: Suntrust Invitational Compe-
tition (Jacksonville, FL).
September 4, Saturday
Volleyball: UF vs. Iowa (Gainesville, FL).
O'Connell Center, doors open at 8:30
AM, ^2 '11 for adults, Youth 17 and un-
der and UF students free- 10:00 am.
A C Volleyball: UF vs. Western
FL). O'Connell Center,
C doors open at 2:30 PM
Football: UF vs. Western
Michigan (Gainesville, FL) 6:00 pm.
September 5, Sunday
Volleyball: UF vs. Nebraska (Gainesville,
FL). O'Connell Center, doors open at
12:30 PM, ^'2 1 for adults, Youth 17
and under and UF students free 2:00
September 9, Thursday
Men's and Women's Cross Country :
Nike Twi-Light (Gainesville, FL).
September 10, Friday
Soccer: UF vs. Kentucky (Gainesville,
FL). Percy Beard Stadium, admission
free. 7:00 pm.
September 11, Saturday
Swimming & Diving: Alumni Meet.
O'Connell Center, free and open to the
Volleyball: University Centre Hotel Invi-
tational (Gainesville, FL).
Football: UF vs. Central Florida
(Gainesville, FL). 6:00 pm.
September 12, Sunday
Soccer: UF vs. Vanderbilt (Gainesville,
FL). Percy Beard Stadium, admission
free. 2:30 pm.
September 17, Friday
Volleyball: UF vs. Iowa State
(Gainesville, FL). O'Connell Center,
doors open at 5:30 PM, '2 i110 for adults,
Youth 17 and under and UF students
free. 7:00 pm.
September 18, Saturday
Women's Cross Country: Crimson Clas-
sic (Tuscaloosa, AL).
Volleyball: Consolation Competition
(Gainesville, FL). O'Connell Center,
doors open at 12:30 PM, ^2_ for
adults, Youth 17 and under and UF stu-
dents free. 2:00 pm
Volleyball: Finals Competition
(Gainesville, FL). O'Connell Center,
doors open at 3:00 PM, ^2 i' for adults,
Youth 17 and under and UF students
free. 4:30 pm.
Football: UF vs. Tennessee
(Gainesville, FL). 8:00 pm.
September 24, Friday
Volleyball: UF vs. Arkan-
sas (Gainesville, FL). O'Connell Center,
doors open at 5:30 PM, '2 i11 for adults,
Youth 17 and under and UF students
free. 7:00 pm
Soccer: UF vs. LSU (Gainesville, FL).
Percy Beard Stadium, admission free.
Men's Cross Country : Sam Bell Invita-
tional (Bloomington, IN).
Football: UF vs. Kentucky (Lexington,
KY). Call 375-4683. 1:30 pm.
September 26, Sunday
Soccer: UF vs. Arkansas (Gainesville,
FL). Percy Beard Stadium, admission
free. 1:00 pm.
Volleyball: UF vs. Louisiana State
(Gainesville, FL). O'Connell Center,
doors open at 12:30 PM, '^2 for
adults, Youth 17 and under and UF stu-
dents free. 2:00 pm.
September 28, Tuesday
Volleyball: UF vs. Florida State (Talla-
hassee, FL). 7:00 pm.
Interview with a Visiting Sci-
entist: Ales Kladnik
Ales grew up in Ljubljana, Slovenia, and
attended the university there. He is cur-
rently visiting Dr. Prem Chourey's lab
learning immuno-localization and in-situ
hybridization techniques, specifically on
the various tissues of com. After his stay
here, he will return to the University of
Ljubljana to write his mini-thesis to
complete his B.Sc. in the Biotechnical
Faculty-Department of Biology. Upon
his return to Slovenia, he will work di-
rectly on his Ph.D. in Dr. Marina Der-
mastia's lab (some of you may remember
her-she was a visiting scientist in Dr.
Chourey's lab 2 years ago.) His Ph.D.
work will involve determining the mini-
mal promoter for INCW-1 and INCW-2;
two invertase genes. He will be explor-
ing the plant physiology involved as well
as various biochemical methods.
Ales is the oldest of four chil-
dren; he has two brothers and one sister.
His hobbies include
ball, rollerblading, and
painting with char-
Dr. Dermastia offered Ales the opportu-
nity to do this project in the U.S. and he
was more than happy to accept it. He is
very excited to be here, as he enjoys hot
weather and finds the people to be very
friendly. So far, Ales has only visited the
local attraction of Devil's Millhopper, but
his ultimate goal is to taste alligator meat
before he goes home.
Interview with a Visiting Pro-
fessor: Dr. Subbarao Manne
Dr. Manne is currently
working as a Sr. Associ-
ate Professor in the
Dept. of Plant Pathol-
ogy at the Agricultural
College of N.G. Ranga
Agricultural University (Bapatla Campus)
in Andhra Pradesh, India. He received
8 PLP NEWS
his B.Sc. (Ag) in 1973 in Agriculture
from the same university at which he
currently works. He then pursued at
M.Sc. (Ag) in Plant Pathology at Baneres
Hindu University. His advisor was Dr.
M.S. Peavga, a prominent Indian my-
cologist renowned for his work on
smuts. In 1980, Dr. Manne received his
Ph.D. from the University of Agricultural
Sciences in Bangalor, India. He studied
plant virology and focused on the causal
agent of sandalwood spike disease, which
was found to be a phytoplasma. His
advisor was Dr. V. Muniyappa, a re-
nowned virologist. Dr. Manne also
worked with Dr. Harrison, a Scottish
expert on white-fly transmitted Gemini
From 1981-1988, Dr. Manne worked as
an assistant professor at a Regional Agri-
cultural Research Station. His primary
focus was on those viruses that infect
chilis, a very important crop in India. He
also worked on cotton and some eco-
nomically important grain crops. In
1988, He was promoted to Sr. Assoc.
Prof And remains in this position today.
He teaches various undergraduate
courses such as general plant pathology,
as well as plant virology to graduate stu-
dents. He has been the major advisor to
12 M.Sc. (Ag) students in his department.
His students work primarily on diseases
of Vigna mungo, a chick-pea -like crop
that is a very important protein source in
the predominantly vegetarian Indian diet.
In 1993, he was awarded the Professor
of the Year designation.
Dr. Manne has presented at several In-
ternational Seminars, as well as published
in the Annals of Entomology. He has
also written a book on tree mycoplasmas
and mycoplasma diseases with Dr. Hi-
Dr. Manne us currently visiting in Dr.
Jerry Bartz's lab working on mangoes,
since mangoes are such an important
crop in India, especially
given the many varieties available there.
He is looking at the alternate strategies
for management of post-harvest diseases
of fruits and vegetables. Cold storage is
used for chiles, but the tc..ii .1. .- is not
used for other less economic crops. He
wants to learn how to safeguard other
crops, especially mangoes and citrus
which are grown extensively in his re-
gion. Dr. Manne is part of a World Bank
Program that gives loans to four Agri-
cultural Universities of developing coun-
tries for the purpose of training scientists
to update their knowledge. They visit
various countries to learn the latest tech-
nology to better their understanding and
ultimately bring about a solution to their
In his free time, Dr. Manne enjoys
spending time with his
wife and children. They
enjoy movies and listening
Sto music, as well as visiting
friends and relatives. Pro-
fessionally, Dr. Manne enjoys teaching
plant diseases and their management and
takes his class on several field trips in the
lab portion of his class. He wants to
illustrate the behavior of the pathogen
under agroclimatic conditions and enjoys
visiting the crops and the local farmers.
He is proud of the fact that all of his
students perform well on the National
Exam. He is enjoying his stay in Florida,
but it has been a big adjustment for him
here without his family.
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Dr. Kenneth S. Derrick is a virologist
based at the Citrus Research and
Education Center in Lake Alfred and his
current interest involves Citrus
Psorosis disease and Citrus Blight. He
received his Ph.D. degree from Texas
A&M University in 1970 and since then,
he has been involved in several interest-
ing research projects. Among his current
research, there is one that actually started
at the beginning of this decade, when he
discovered some proteins associated with
Citrus Blight. This disease has been giv-
ing headaches to citrus growers both in
Florida and Brazil.
Potential losses of millions of trees can occur
every year in both countries due to this dis-
ease. Recently, his team found that one of
these proteins is a plant endogenous protein
rather than a pathogen protein. Thus, the
actual efforts are toward the understanding
of its function. His "team" is made up by
Gary, Tony Ceccardi, Julia Beretta and Edu-
ardo F. Carlos '_ '..1.u ir. student).
The Plant Pathology Department
notes with sadness the passing of
Mrs. Laura Stall, wife of Dr. Robert
Stall, on Tuesday, July 27h, 1999. Mrs.
Stall will be long remembered for her
kindness, outgoing nature and the
courage with which she faced her
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News Team August 1999
The opinions expressed in this newsletter are not
necessarily those of the PLPNews '.