Abstract
The influence of abscisic acid (ABA) and t cinnamic acid, individually and in combination, on senescence of excised nasturtium (Tropaeolum majus) leaves as related to stomatal movements has been studied. ABA (10∔5 M) induced an acceleration of chlorophyll loss in dark that was accompanied by an increase in stomatal diffusive resistance (SDR) of leaves. Trans-cinnamic acid (tCA) prevented the ABA-induced loss of chlorophyll and there was a proportionate decrease in SDR. When applied alone tCA, in general, delayed the chlorophyll loss SDR being slightly lower at 10∔5M than in control. tCA treatment resulted in a massive release of potassium ions from senescing leaves. Significance of the findings is discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
