Elucidation of the primary events in photosynthesis. Novel Insights based on enolisation and iminium Involvement with pheophytin in photosystem 2

Title:

Elucidation of the primary events in photosynthesis. Novel Insights based on enolisation and iminium Involvement with pheophytin in photosystem 2

Creator:

Kovacic, P.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:368972bc-f1d4-4202-af00-8bee6f7e4b59
uuid:368972bc-f1d4-4202-af00-8bee6f7e4b59
issn:0300-3604
doi:10.1023/A:1020177703457

Subject:

chlorophyll, electron transfer, electrostatics, and enigma elucidation

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Pheophytin (Pheo) is structurally constituted as to make possible certain reactions, previously given very little attention, which appear to play crucial roles in the initial electron transfer (ET) processes. The transformations involve enolisation with subsequent formation of mono- and di-iminium cations at the Pheo core. The important impact of these ions on ET from chlorophyll (Chl) to Pheo and then to quinone are evaluated. These insights rationalise the long-standing enigmas of fast transfer, across gap ET, activation-less aspect, and essential lack of reversibility. Comparisons are made to other important areas of iminium involvement, e.g. chemistry of vision, polyaniline doping, and DNA alkylation.

Language:

Multiple languages

Rights:

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

Coverage:

31-34

Source:

Photosynthetica | 2002 Volume:40 | Number:1

Harvested from:

CDK

Metadata only:

false