Work

Protective Action of Abscisic Acid Against the Inhibition of Photosynthesis of Barley Leaves by Bisulphite

Year: 1999

Type: article

Abstract: The inhibition of photosynthetic activity by bisulphite was studied in intact leaves of abscisic acid (ABA)-treated and non-treated (control) barley plants. ABA inhibited the photosynthetic process as evidenced by lower values of chlorophyll fluorescence kinetic parameters Fv/Fm (photosystem 2 activity) and Rfd (vitality index, related to the whole photosynthetic activity) compared with ABA-non-treated plants. After bisulphite treatment, the extent of inhibition was smaller in ABA-treated plants than in the control ones indicating a protective effect of ABA. The protective action sites of ABA were the QA reduction and the Calvin cycle.

Source: Photosynthetica

DOI: 10.1023/a:1007062519107

Authors: C.N. N'Soukpoè-Kossi, A.G. Ivanov, K. Veeranjaneyulu, R.M. Leblanc

Institutions: Université du Québec à Trois-Rivières, Western University

Language: English

Topic: Photosynthetic Processes and Mechanisms

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

OpenAlex ID: W233701777