Plant Pathology - Study Mode

[#881] Who is regarded as the father of Epidemiology?
Correct Answer

(C) Vander Plank

Explanation

Solution: Vander Plank is regarded as the father of Epidemiology. James Edward Vanderplank, best known to plant pathologists globally simply as 'Vanderplank', is widely regarded as one of the world's most influential plant scientists. This recognition stems from his reputation as the founding father of modern quantitative plant disease epidemiology. Epidemiology is the study and analysis of the distribution patterns and determinants of health and disease conditions in a defined population.

[#882] The bacterial colony is known as
Correct Answer

(C) Ooze

Explanation

Solution: The bacterial colony is known as Ooze. Bacterial disease sign is bacterial ooze. This is an exudate/discharge coming out from the bacteria-infected surface. In plants, this occurs in leaf cracks and stomata. Bacterial ooze often serves as a mode of spread, especially during heavy rainfall and strong winds.

[#883] Who proposed that the fungi arise from their own spores?
Correct Answer

(C) P. A. Micheli

Explanation

Solution: P. A. Micheli proposed that fungi arise from their spores. Pier Antonio Micheli was a noted Italian botanist, professor of botany in Pisa, curator of the Orto Botanico di Firenze, and author of Nova plantarum genera iuxta Tournefortii methodum disposita. He discovered the spores of mushrooms, was a leading authority on cryptogams, and coined several important genera of microfungi including Aspergillus and Botrytis.

[#884] Select the correct order of events
Correct Answer

(D) Infection - incubation period - invasion - colonization

Explanation

Solution: The correct order of events is Infection - incubation period - invasion - colonization. Pathogenic mechanisms of the viral disease include (1) implantation of virus at the portal of entry is an infection of the pathogen, (2) local replication is the incubation period of the pathogen, (3) spread to target organs (disease sites) is an invasion of the pathogen, and (4) spread to sites of shedding of virus into the environment is colonization.

[#885] Which oomycetous fungi contains both chitin and cellulose?
Correct Answer

(C) Apodachlya

Explanation

Solution: Apodachlya oomycetes fungi contain both chitin and cellulose. Apodachlya is characterized by the structure of their hyphae, which are constricted into septae-like structures which enclose cellulin plugs, preventing the loss of cytoplasm in the case of cell rupture. Apodachlya sp has Chitin and cellulose in the cell walls of the oomycete.