Question : Molybdenum deficiency affects the activity of:
Option 1: All of the given options
Option 2: Chlorate reductase
Option 3: Nitrogenase
Option 4: Nitrate reductase
Correct Answer: Nitrate reductase
Solution : The correct answer is Nitrate reductase.
In most plants, symptoms of molybdenum deficiency are coupled with a buildup of nitrate in the afflicted plant component. This is due to low nitrate reductase activity. Pale leaves with interveinal and marginal chlorosis (yellowing) and necrosis (scald); whiptail condition in Brassica crops (particularly cauliflower); reduced tasselling in maize; early germination of maize grain are some of the symptoms.
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