Case Study

Question 1

Basidiomycetes - smuts 1

Answer 1

Ustilago maydis (Corn Smut)

Question 2

Basidiomycetes - Root and stem rots 2

Answer 2

Rhizoctonia, Sclerotium

Question 3

Basidiomycetes - Wood rots 2

Answer 3

White, Brown

Question 4

Basidiomycete tree pathogens 3

Answer 4

Heterobasidion, Ganoderma, Armillaria

Question 5

Basidiomycetes - Rusts 3

Answer 5

Puccinia graminis (Cereal wheat stem rust), Hemileia vastatrix (Coffee rust), Phakopsora pachyrhizi (Soybean rust)

Question 6

Ascomycete (sac fungi) 7

Answer 6

Helminthosporium oryzae (rice brown spot), Powdery mildews
Claviceps purperea (ergot of cereal), Monolinia fructicola (brown rot of stone fruit), Fusarium oxysporum (vascular wilts), Verticillium dahliae (vascular wilts), Sclerotinia sclerotiorum (stem rot), Helminthosporium Maydis (Sac fungi)

Question 7

Chytridiomycete 2

Answer 7

Synchytrium endobioticum (potato wart), Olpidium brassicae (vector)

Question 8

Zygomycetes 1

Answer 8

Rhizopus stolonifer (soft rot)

Question 9

Oomycete, Downy mildew 1

Answer 9

Plasmodiophora brassicae

Question 10

Oomycete 3

Answer 10

Saprolegnia (often called cotton mould), Phytophthora infestans (potato late blight), Phytophthora ramorum (sudden oak death)

Question 11

Virus 1

Answer 11

Tobacco mosaic virus (TMV)

Question 12

Bacteria 4

Answer 12

Pseudomonas, Xanthomonas wilt of Banana, Xanthomas campestris pv. Citri (Citrus canker), Erwinia carotovora pv. Carotovora (Soft rot in vegetables)