Plant Pathology - Study Mode

[#311] Who is regarded as father of Indian Phytopathology?
Correct Answer

(C) Butler

Explanation

Solution: Sir Edwin John Butler is regarded as the father of Indian Phytopathology. Plant pathology or phytopathology is the scientific study of diseases in plants caused by pathogens and environmental conditions. He was an Irish mycologist and plant pathologist. He became the Imperial Mycologist in India and later the first director of the Imperial Bureau of Mycology in England. He has been called the Father of Mycology and Plant Pathology in India.

[#312] Tundu disease (yellow ear rot) of wheat caused by Clavibacter tritici is usually associated with
Correct Answer

(B) Anguina tritici

Explanation

Solution: Tundu disease (yellow ear rot) of wheat caused by Clavibacter tritici is usually associated with Anguina tritici. The disease was first described by Hutchinson from Punjab in India. Milne (1919) observed the disease incidence depended on mechanical injury to the plant parts by eelworms and that the bacterium could grow only on the excretion of the eelworms. The 'tundu' disease is characterized by twisting of the stem, distortion of the earhead, and rooting of the spikelets with a profuse oozing liquid from the affected tissues. Hence, the name of the disease is yellow ear rot. The ooze contains masses of bacterial cells.

[#313] Lactic acid fermentation does not produce
Correct Answer

(B) CO 2 and NADH

Explanation

Solution: Lactic acid fermentation does not produce CO 2 and NADH. Lactic acid fermentation is a metabolic process by which glucose or other six-carbon sugars are converted into cellular energy and the metabolite lactate, which is the lactic acid in solution. It is an anaerobic fermentation reaction that occurs in some bacteria and animal cells, such as muscle cells.

[#314] The downey mildew disease of pearlmillet is primarily a
Correct Answer

(C) Soil borne

Explanation

Solution: The Downey mildew disease of pearl millet is primarily Soil borne. Downy mildew of pearl millet, it is referred to as 'green ear' is the most destructive disease of pearl millet. This disease is widely distributed in temperate and tropical areas of the world and is especially important in India. This fungus is soil-borne. The fungus may persist in the soil for five to ten years. Under cool, water-saturated soil conditions, the spores, upon contact with roots, germinate and enter the seedling's roots, and spread throughout the entire plant.

[#315] Ug 99 race specific to
Correct Answer

(C) Puccinia graminis tritici

Explanation

Solution: Ug 99 race specific to Puccinia graminis tritici. Ug 99 is a lineage of wheat stem rust ( Puccinia graminis f. sp. tritici ), which is present in wheat fields. It is predicted to spread rapidly through these regions and possibly further afield, potentially causing a wheat production disaster that would affect food security worldwide. Ug 99 and its variants differ from other strains of the Black Stem Rust pathogen due to their ability to overcome resistance genes in wheat that has been durable against the BSR pathogen for decades.