historyofplantbacteriology-170919191056.pdf

PLANT BACTERIOLOGY

1. SARDAR VALLABHAI PATEL
UNIVERSITY OF AGRICULTURE &
TECHNOLOGY
HISTORY OF PHYTOBACTERIOLOGY AT GLOBAL LEVEL
SUBMITTED TO
PROF.KAMAL KHILARI

2. 
HistoryofbacteriologystartedwhenAnton
VonLeeuwenhoek,(DutchWorker)observed
Bacteriaforthefirsttimein1675with
Microscope.In1683hedescribedthebacteria
seenwithmicroscope.
Theimportanceoftheseobservationswere
realisedonlyafterPasteur(1876)had
demonstratedtheirroleinfermentationand
decay.

3. RobertKoch(1876)from
Germanyhadproved
thatthebacteriacan
causesuchdiseaseas
anthrax,tuberculosisor
Asiaticcholera.Hegave
fourfamousKoch’s
Postulatesforproving
that a particular
organismisthecauseof
particulardisease.
Robert koach1876

4. Woronin(1876)isolatedand
describedtherootnodule
bacteriainleguminous
plant.Nowitwaswell
recognisedthatallthe
organisms’bacteriaaremost
closelyrelatedtohuman
beinglife.
Woronin(1876)

5. T.J Burbilfrom
University of Illinois
(1878) was first proved
to association of
bacterium with plant
disease. He showed that
Erwiniaamylovora
causes fire blight pear
and apple.
In 1879 Prilleaux
reported the bacterial
decay of wheat kernels.
T.J Burbil1878 &Prilleaux
1879

6. In 1883 J.H Wakker
published the results on his
through investigationson
yellow slime disease of
hyacinth caused by
bacterium.
J.H Wakker1883

7. J.C Arther(From USA)
during 1885 -1887
confirmed Burrill’s
work.
Luigi Savastano(From
Italy) described in 1887 a
bacterial knot disease of
olives.
J.C Arther1885-1887&Luigi
1887

8. Erwin F. Smith (From USA) started
studying bacterial disease of pants from
1890. His humerousand excellent
contributions on to the study of bacterial
disease of plants, particularly of the
bacterial wilts of cucurbits, of solanaceous
crops, and of cruifersestablished beyond
any doubt the role of bacteria as
phytopathogens. He resolved the
controversy with the German
Bacteriologist, Alfred Fischer (1897,1899)
who did not think that bacteria were the
primary cause of disease in plants. He
also was among the first to notice (1893-
1894) and to study the crown gall disease.
He showed it to be caused by bacteria,
studied its anatomy and development,
and considered it to resemble cancerous
tumors of human and animals.
Erwin F.Smith1890-1899

9. Chilton et al. (1977) showed
that the crown gall bacterium
transforms normal plant cells
into tumor cells by
introducing into them a
plasmid, part of which
becomes inserted into the
plant cell chromosomes DNA.
Chilton et al. 1977

10. Windsor and Black in 1972
observed rickettsia like
organisms in the phloem of
clover plants infected with
the club leaf disease. The
following year similar
organisms were observed in
grape infected with pierces
disease, in peach infected
with phony peach, and
others.
Windsor and Black 1972

11. E.J Butler from India,
examined the brown rot
disease of potato in 1903,
and indicated the
bacterial nature of the
disease.
E.J Butler 1903

12. M.K Patel and associates
from Pune, India,
commenseda serious of
studies on bacterial
phytopathogensin 1948.
This team, over a period
of about 15 years,
reported on nearly 40
bacterial diseases, some of
them on economically
important host plants.
M.K Patel & associates

13. About1600bacterialspeciesare
known.Mostarestrictly
saprophyteswhicharebeneficial
tohuman becausethey
decompose theenormous
quantitiesoforganicmatter
producedyearlybyhumans,
animalsandfactorywaste
productsorbydeathofplants
andanimalsandfactorywaste
productsorbydeathofplant
andanimals.Severalspecies
causesdiseaseinhumans,
animalsandplants.
Importance

14. 