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Match the items on the left column with those on the right Left
P. Programmed cell death at site of infection
Q. Hormone upregulated during flooding stress
R. Target for herbicide glyphosate
S. Pathogen-derived resistance
Right
1. TMV coat protein
2. EPSP synthase
3. Hyper-sensitive response
4. Ethylene
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- P-l, Q-2, R-4, S-3
- P-3, Q-4, R-2, S-l
- P-l, Q-4, R-2, S-3
- P-3, Q-2, R-4, S-l
Correct Option: B
Hypersensitive response is characterized by the rapid death of cells in the local region surrounding an infection carried out as a programmed mechanism for cell death. Environmental cues such as flooding, drought, chilling, wounding, and pathogen attack induce ethylene formation in plants. Glyphosate is a chemical herbicide which kills plants by inhbiting the shikimate pathway. It targets EPSP synthase, the enzyme that catalyzes the conversion of shikimate-3-phosphate and phosphoenolpyruvate into EPSP.
