Universität zu Köln

Weckopp, Silke C. and Kopriva, Stanislav ORCID: 0000-0002-7416-6551 (2015). Are changes in sulfate assimilation pathway needed for evolution of C-4 photosynthesis? Front. Plant Sci., 5. LAUSANNE: FRONTIERS MEDIA SA. ISSN 1664-462X

Full text not available from this repository.

Abstract

C-4 photosynthesis characteristically features a cell specific localization of enzymes involved in CO2 assimilation in bundle sheath cells (BSC) or mesophyll cells. Interestingly, enzymes of sulfur assimilation are also specifically present in BSC of maize and many other C-4 species. This localization, however, could not be confirmed in C-4 species of the genus Flaveria. It was, therefore, concluded that the bundle sheath localization of sulfate assimilation occurs only in C-4 monocots. However, recently the sulfate assimilation pathway was found coordinately enriched in BSC of Arabidapsis, opening new questions about the significance of such cell-specific localization of the pathway. In addition, next generation sequencing revealed expression gradients of many genes from C-3 to C-4 species and mathematical modeling proposed a sequence of adaptations during the evolutionary path from C-3 to C-4. Indeed, such gradient, with higher expression of genes for sulfate reduction in C-4 species, has been observed within the genus Flaverla. These new tools provide the basis for reexamining the intriguing question of compartmentalization of sulfur assimilation. Therefore, this review summarizes the findings on spatial separation of sulfur assimilation in C-4 plants and Arabdopsis, assesses the information on sulfur assimilation provided by the recent transcriptomics data and discusses their possible impact on understanding this interesting feature of plant sulfur metabolism to find out whether changes in sulfate assimilation are part of a general evolutionary trajectory toward C-4 photosynthesis.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Weckopp, Silke C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kopriva, Stanislav UNSPECIFIED orcid.org/0000-0002-7416-6551 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-414704
DOI:	10.3389/fpls.2014.00773
Journal or Publication Title:	Front. Plant Sci.
Volume:	5
Date:	2015
Publisher:	FRONTIERS MEDIA SA
Place of Publication:	LAUSANNE
ISSN:	1664-462X
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language BUNDLE-SHEATH-CELLS; GLUTATHIONE SYNTHESIS; ATP SULFURYLASE; C-3-C-4 INTERMEDIATE; ARABIDOPSIS-THALIANA; MESOPHYLL-CELLS; INTERCELLULAR DISTRIBUTION; AMMONIUM ASSIMILATION; SULFITE REDUCTASE; MAIZE LEAVES Multiple languages Plant Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/41470