Photoinhibition in chilling stressed Leguminosae: comparison of Vicia faba and Pisum sativum

Title:

Photoinhibition in chilling stressed Leguminosae: comparison of Vicia faba and Pisum sativum

Creator:

Lidon, F. C., Ribeiro, G., Santana, H., Marques, H., Correia, K., and Gouveia, S.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:1034dd36-d7df-45b2-9056-ab8a7fe03d36
uuid:1034dd36-d7df-45b2-9056-ab8a7fe03d36
issn:0300-3604
doi:10.1023/A:1012427415388

Subject:

carotenoids, chlorophylls, cytochromes, lipids, photoinhibition, photosystem 2, proteins, quinones, water oxidising complex, and xanthophyll cycle

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The concentrations of photosynthetic pigments decreased in both chilling stressed species but the ratios of chlorophyll (Chl) a/b and total carotenoids (Car)/Chls were depressed only in faba bean. The contents of α+β carotene and lutein+lutein-5,6-epoxide remained unaffected in both species, but the de-epoxidation state involving the components of xanthophyll cycle increased in pea. Under chilling stress the photosynthetic electron transport associated with photosystem 2, PS2 (with and without the water oxidising complex) decreased in both plant species, the inhibition being higher in faba bean. The intrachloroplast quinone pool also decreased in both stressed species, yet an opposite trend was found for cytochrome b559LP. Under stress an increasing peroxidation of thylakoid acyl lipids was detected in pea, but higher protein/Chl ratio was detected in faba bean. Thus the acceptor side of PS2 is mostly affected in both chilling stressed species, but faba bean is more sensitive. and F. C. Lidon ... [et al.].

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

17-22

Source:

Photosynthetica | 2001 Volume:39 | Number:1

Harvested from:

CDK

Metadata only:

false