#Question id: 10540
#SCPH05 I Biotechnology
The following statements are made regarding volatile compounds of plant;
a) secondary metabolites also fuction in defence mechanism but this is not the volatile compound
b) These volatiles can act as cues for natural enemies of the insect herbivore such as parasitic wasps
c) All plants releases green-leaf volatiles in response to mechanical damage that is a mixture of aldehydes, alcohols, and esters
d) These volatiles attracts natural enemies of the attacking insect herbivores—predators or parasites
Which one of the following options represents a combination of correct statements?
#Question id: 10541
#I Life Science/ Life Sciences Group – I-V
Green-leaf volatiles act as potent signals, which of the following option is incorrect about this volatile compound
#Question id: 10541
#SCPH05 I Biotechnology
Green-leaf volatiles act as potent signals, which of the following option is incorrect about this volatile compound
#Question id: 10542
#I Life Science/ Life Sciences Group – I-V
Following are certain strategies used by pathogen to attack over the host plant that describe plant-pathogen interactions:
I II
A. Necrotrophic pathogens i) most of the plant tissue remains alive and only minimal cell damage can be observed, as the pathogens feed on substrates provided by their host
B. Biotrophic pathogens ii) In which the host cells are kept alive as described for biotrophic Pathogens and followed by a necrotrophic stage, in which the pathogens can cause extensive tissue damage
C. Hemibiotrophic pathogens iii) attack their host by secreting cell wall–degrading enzymes or toxins, which eventually kill the affected plant cells, leading to extensive tissue maceration. This dead tissue is then colonized by the pathogens and serves as a food source
Which of the following above combination is correct?
#Question id: 10542
#SCPH05 I Biotechnology
Following are certain strategies used by pathogen to attack over the host plant that describe plant-pathogen interactions:
I II
A. Necrotrophic pathogens i) most of the plant tissue remains alive and only minimal cell damage can be observed, as the pathogens feed on substrates provided by their host
B. Biotrophic pathogens ii) In which the host cells are kept alive as described for biotrophic Pathogens and followed by a necrotrophic stage, in which the pathogens can cause extensive tissue damage
C. Hemibiotrophic pathogens iii) attack their host by secreting cell wall–degrading enzymes or toxins, which eventually kill the affected plant cells, leading to extensive tissue maceration. This dead tissue is then colonized by the pathogens and serves as a food source
Which of the following above combination is correct?
#Question id: 10543
#I Life Science/ Life Sciences Group – I-V
Effectors are molecules that change the plant’s structure, metabolism, or hormonal regulation to the advantage of the pathogen, which of the following is effector molecules?