Protective action of abscisic acid against the inhibition of photosynthesis of barley leaves by bisulphite

C. N. N'Soukpoè-Kossi; A. G. Ivanov; K. Veeranjaneyulu; R. M. Leblanc

Protective action of abscisic acid against the inhibition of photosynthesis of barley leaves by bisulphite

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

Research output: Contribution to journal › Article › peer-review

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 F(v)/F(m) (photosystem 2 activity) and R(fd) (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 Q(A) reduction and the Calvin cycle.

Original language	English (US)
Pages (from-to)	51-60
Number of pages	10
Journal	Photosynthetica
Volume	36
Issue number	1-2
State	Published - Jan 1 1999
Externally published	Yes

Keywords

Chlorophyll fluorescence
Hordeum vulgare
Photoacoustic spectroscopy
Photosystem 2

ASJC Scopus subject areas

Plant Science

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title = "Protective action of abscisic acid against the inhibition of photosynthesis of barley leaves by bisulphite",

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 F(v)/F(m) (photosystem 2 activity) and R(fd) (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 Q(A) reduction and the Calvin cycle.",

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AU - Ivanov, A. G.

AU - Veeranjaneyulu, K.

AU - Leblanc, R. M.

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AB - 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 F(v)/F(m) (photosystem 2 activity) and R(fd) (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 Q(A) reduction and the Calvin cycle.

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