The energy of incident solar radiation reaching the surface of the earth declines toward the poles from its maximum in equatorial regions. One cause of this phenomenon is greater absorption of solar energy by the earth's atmosphere at high latitudes. Why is this?

#Question id: 10544

#Unit 6. System Physiology – Plant

Fusicoccin is a nonspecific toxin from the fungus Fusicoccum amygdali function as,

#Question id: 10545

#Unit 6. System Physiology – Plant

Some given facts regarding effector molecules such as;

a) HC-toxin-induced plasma membrane hyperpolarization in guard cells causes massive K+ uptake and permanent stomatal opening

b) Xanthomonas, are proteins that target the plant cell nucleus and causes change in gene expression, called transcription activator-like (TAL) effectors bind to the host plant DNA and activate the expression of genes

c) Fusicoccin, a cyclic peptide, acts on the enzyme histone deacetylase in the nucleus, and may have a compromising effect on the expression of genes involved in defense

d) Gibberellins accelerate growth, resulting in bigger plants when compared with uninfested plants. The gibberellins produced by the fungi are identical to those produced endogenously by the plant

Which of the following combination is incorrect?

#Question id: 10546

#Unit 6. System Physiology – Plant

Given below are certain statements regarding plant-pathogen interactions: which one of the following is incorrect?

#Question id: 10547

#Unit 6. System Physiology – Plant

Which of the following responses are incorrect for closing of stomata?

#Question id: 10548

#Unit 6. System Physiology – Plant

flg22-elicited response is dependent on the presence of the LRR receptor-like kinase, what will be the causes of mutant form of LRR receptor-like kinase FLS2?

#Question id: 10549

#Unit 6. System Physiology – Plant

Following are the list of some of the molecular “danger signals” (column I) and its characteristics (column II)                                                                                         

Which of the following is the correct match between the signals and their respective mechanism?