Evaluation of the specific roles of anions in electron transport and energy transfer reactions in photosynthesis

Title:

Evaluation of the specific roles of anions in electron transport and energy transfer reactions in photosynthesis

Creator:

Jajoo, A., Bharti, S., and Mohanty, P.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:9dccca82-d90f-41be-8a2b-01b8317c03e4
uuid:9dccca82-d90f-41be-8a2b-01b8317c03e4
issn:0300-3604
doi:10.1023/A:1015125008028

Subject:

bicarbonate, cations, chloride, chloroplast stsructure, oxygen evolution, photosystems 1 and 2 thylakoid, and water oxidaton

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Ionic environment is important in regulating photosynthetic reactions. The roles of cations, Mn2+, Mg2+, Ca2+, Na+, and K+ as cofactors in electron transport, energy transfer, phosphorylation, and carbon assimilation are better known than the roles of anions, except for chloride and bicarbonate. Only a limited information exists on the roles and effects of nitri formate, sulphate, and phosphate. In this review, we evaluate and highlight the roles of some specific anions on electron transport as well as on excitation energy transfer processes in photosynthesis. Anions exert significant effects on thyla membrane conformation and membrane fluidity, possibly by redistributing the thylakoid membrane surface charges. The anion/cation induced phase transitions in the hydrophilic domains of the thylakoid membranes are probably responsible for the various structural and co-related functional changes under stress. Anions are also important in regulation of energy distribution between the two photosystems. Anions do not only divert more energy from photosystem (PS) 2 to PS1, but can also reverse the effect of cations on energy distribution in a valence-dependent manner. Anions affect also the structure of the photosynthetic apparatus and excitation energy distribution between the two photosystems. and A. Jajoo, S. Bharti, P. Mohanty.

Language:

Multiple languages

Rights:

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

Coverage:

321-337

Source:

Photosynthetica | 2001 Volume:39 | Number:3

Harvested from:

CDK

Metadata only:

false