Chloroplast biogenesis 80. Proposal of a unified multibranched chlorophyll a/b biosynthetic pathway

Title:

Chloroplast biogenesis 80. Proposal of a unified multibranched chlorophyll a/b biosynthetic pathway

Creator:

Rebeiz, C. A., Ioannides, I. M., Kolossov, V., and Kopetz, K. J.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:4cebf38d-0e90-47e9-963a-953aba609ecf
uuid:4cebf38d-0e90-47e9-963a-953aba609ecf
issn:0300-3604
doi:10.1023/A:1007027005903

Subject:

enzymes, light-harvesting pigment-proteins, photosystems 1 and 2, protochlorophyllide, protoporphyrin IX, and tetrapyrroles

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

A unified multibranched chlorophyll (Chl) biosynthetic pathway is proposed. The proposed pathway takes into account the following considerations: (a) that the earliest putative precursor of monovinyl Chl b that has been detected in higher plants is monovinyl protochlorophyllide b, (b) that in most cases, Chl b biosynthesis has its roots in the Chl a biosynthetic pathway, (c) that the Chl a biosynthetic pathway exhibits extensive biosynthetic heterogeneity, (d) that Chl biosynthesis may proceed differently at different stages of greening and in different greening groups of plants. Integration of the Chl a and b biosynthetic pathways into a unified multibranched pathway offers the functional flexibility to account for the structural and biosynthetic complexity of photosynthetic membranes. In this context, it is proposed that the unified, multibranched Chl a/b biosynthetic pathway represents the template of a Chl-protein biosynthesis center where photosystem (PS) 1, PS2, and light-harvesting Chl-protein complexes are assembled into functional photosynthetic units. The individual biosynthetic routes or groups of two to three adjacent biosynthetic routes may constitute Chl-protein biosynthesis subcenters, where specific Chl-protein complexes are assembled. and C. A. Rebeiz ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

117-128

Source:

Photosynthetica | 1999 Volume:36 | Number:1-2

Harvested from:

CDK

Metadata only:

false