UNIVERSITY OF MADRAS
B.Sc. DEGREE COURSE IN PLANT BIOLOGY AND PLANT BIOTECHNOLOGY
SEMESTER SYSTEM WITH CREDITS
(Effective from the Academic Year 2003-2004)

SYLLABUS

Semester V - Application Oriented Subject I - Modern Plant Pathology

Lecture: 4 hours

Theory:

Unit: 1

A brief history of plant pathology; Principles of plant pathology; Symptometology-study of infection- entry of fungal, bacterial and viral pathogens; Leaf spot, Blight, Wilt, Rot, Rust, Smut, Powdery mildew, Downy mildew, Leaf mosaicand Phyllody.

Unit: 2

Dissemination of pathogens-spore dispersal, role of vectors in viral transmission, influence of weather-wind, temperature and humidity.

Unit: 3

Disease resistance-morphological, cytological, biochemical and genetical. Cross protection. Role of toxins and enzymes in plant pathogenesis.

Unit: 4

Modern methods of disease forecast- epiphytotics- causes, course, decline and prophylaxis; Cultural, breeding and chemical control - protectant and systemic fungicides.
Molecular techniques in plant pathology; Detection of plant pathogens using molecular tools. Incorporation of resistant genes.

Unit: 5

Study of causal organisms and symptoms of
a) Blast disease of Rice
b)Red rot of Sugarcane
c)Tikka of Ground-nut
d) Bacterial blight of Rice
e) Citrus canker
f) Leaf curl of Papaya
g) Fusarium wilt of Cotton.
Plant protection-Prevention; eradication-chemical, biological, genetical- breeding, hybridization- immunization.