The precursor of ethylene synthesis in higher plants is
A. Histidine
B. Glutamine
C. Methionine
D. Tryptophan
Answer: Option C
Solution(By Examveda Team)
The precursor of ethylene synthesis in higher plants is Methionine.Ethylene is a plant hormone and is produced from essentially all parts of higher plants, including leaves, stems, roots, flowers, fruits, tubers and seeds.
Plants synthesize ethylene using a two-step biochemical pathway starting from S-adenosyl-L-methionine (SAM). SAM is converted to 1-aminocyclopropane-1-carboxylic acid (ACC) by the enzyme ACC synthase (ACS). ACC is then converted to ethylene by the enzyme ACC oxidase (ACO). Thus Methionine can be called a precursor of this process.
Related Questions on Horticulture
Which of the following is not an anti gibberellin or growth retardant?
A. Phosfon D
B. Cycocel
C. Amo-1618
D. Benzyl adenine
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