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2. Hormonal regulation of photosynthetic enzymes in cotton under water stress

Creator:
Pandey, D. M., Goswami, C. L., Kumar, B., and Jain, Sudha
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
abscisic acid, benzylaminopurine, carbonic anhydrase, ethrel, gibberellic acid, Gossypium hirsulum, phosphoenolpyruvate carboxylase, and ribulose-1,5-bisphosphate carboxylase/oxygenase
Language:
Multiple languages
Description:
Activities of ribulose bisphosphate carboxylase/oxygenase (RuBPCO), phosphoenolpyruvate carboxylase (PEPC), and carbonic anhydrase (CA) were determined in leaves of cotton (Gossypium hirsutum L. cv. H-777) subjected to 8-d waterlogging (WL) at the vegetative stage, or to drought (D) at the reproductive stage, or to interaction of both stresses. The soil moisture of control plants was kept at field capacity. One day prior to stress various growth hormones (5 μM) were sprayed up to runoff. WL reduced RuBPCO and CA activities, while PEPC activity increased. Upon D, RuBPCO and PEPC activities were reduced while CA activity was increased. Imposition of both stresses increased activities of all three enzymes. Effect of stresses on enzyme activity was alleviated by benzylaminopurine (BAP), but indol-3-yl-acetic acid was more promoting under interactive stress. No CA activity with BAP was observed during interactive stress. and D. M. Pandey ... [et al.].
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public