Universität zu Köln

Fabianska, Izabela, Bucher, Marcel ORCID: 0000-0003-1680-9413 and Haeusler, Rainer E. (2019). Intracellular phosphate homeostasis - A short way from metabolism to signaling. Plant Sci., 286. S. 57 - 68. CLARE: ELSEVIER IRELAND LTD. ISSN 0168-9452

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Abstract

Phosphorus in plant cells occurs in inorganic form as both ortho- and pyrophosphate or bound to organic compounds, like e.g., nucleotides, phosphorylated metabolites, phospholipids, phosphorylated proteins, or phytate as P storage in the vacuoles of seeds. Individual compartments of the cell are surrounded by membranes that are selective barriers to avoid uncontrolled solute exchange. A controlled exchange of phosphate or phosphorylated metabolites is accomplished by specific phosphate transporters (PHTs) and the plastidial phosphate translocator family (PTs) of the inner envelope membrane. Plastids, in particular chloroplasts, are the site of various anabolic sequences of enzyme-catalyzed reactions. Apart from their role in metabolism PHTs and PTs are presumed to be also involved in communication between organelles and plant organs. Here we will focus on the integration of phosphate transport and homeostasis in signaling processes. Recent developments in this field will be critically assessed and potential future developments discussed. In particular, the occurrence of various plastid types in one organ (Le. the leaf) with different functions with respect to metabolism or sensing, as has been documented recently following a tissue-specific proteomics approach (Beltran et al., 2018), will shed new light on functional aspects of phosphate homeostasis.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Fabianska, Izabela UNSPECIFIED UNSPECIFIED UNSPECIFIED Bucher, Marcel UNSPECIFIED orcid.org/0000-0003-1680-9413 UNSPECIFIED Haeusler, Rainer E. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-143537
DOI:	10.1016/j.plantsci.2019.05.018
Journal or Publication Title:	Plant Sci.
Volume:	286
Page Range:	S. 57 - 68
Date:	2019
Publisher:	ELSEVIER IRELAND LTD
Place of Publication:	CLARE
ISSN:	0168-9452
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 TRIOSE-PHOSPHATE/PHOSPHATE TRANSLOCATOR; ARABIDOPSIS-THALIANA; TRANSPORTER GENE; INORGANIC-PHOSPHATE; AMINO-ACIDS; HIGH LIGHT; PHOSPHOENOLPYRUVATE/PHOSPHATE-TRANSLOCATOR; FUNCTIONAL-CHARACTERIZATION; SACCHAROMYCES-CEREVISIAE; HETEROTROPHIC TISSUES Multiple languages Biochemistry & Molecular Biology; Plant Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/14353