Acetylcholine action on the photochemical reactions of pea pisum sativum chloroplasts

Roshchina, V.V.; Mukhin, E.N.

Plant Science 42(2): 95-98

1985


ISSN/ISBN: 0168-9452
Accession: 004655079

Download citation:  
Text
  |  
BibTeX
  |  
RIS

Article/Abstract emailed within 1 workday
Payments are secure & encrypted
Powered by Stripe
Powered by PayPal

Abstract
Acetylcholine (ACh) accumulation in chloroplasts as a result of acetylcholinesterase inhibition (high concentrations of the substrate; ACh, or the inhibitors, neostigmine or trichlorophon) leads to a decrease in photophosphorylation but not in electron transport. The presence of ACh (10-4-10-2 M) in the medium inhibits chloroplast swelling in the light. It is possible that ACh regulates the ATP/NADPH ratio in chloroplasts and the ion permeability of the chloroplast thylakoid membrane.