Proline metabolism and transport in plant development

Proline fulfils diverse functions in plants. As amino acid it is a structural component of proteins, but it also plays a role as compatible solute under environmental stress conditions. Proline metabolism involves several subcellular compartments and contributes to the redox balance of the cell. Pro...

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Bibliographic Details
Published in:Amino acids Vol. 39; no. 4; pp. 949 - 962
Main Authors: Lehmann, Silke, Funck, Dietmar, Szabados, László, Rentsch, Doris
Format: Journal Article
Language:English
Published: Vienna Vienna : Springer Vienna 01.10.2010
Springer Vienna
Springer Nature B.V
Subjects:
Amino Acid Transport Systems
Amino Acid Transport Systems, Neutral
Amino Acid Transport Systems, Neutral - metabolism
Amino acids
Analytical Chemistry
animals
apical meristems
bacteria
Biochemical Engineering
Biochemistry
Biomedical and Life Sciences
Biosynthesis
cell structures
Cellular structure
Compatibility
Dehydration
Development
embryogenesis
Environmental stress
fungi
Gene Expression Regulation, Plant
genetics
Genome, Plant
Hormones
Life Sciences
Membrane Transport Proteins
Membrane Transport Proteins - metabolism
Meristems
Metabolism
Metabolites
Microbiology
Neurobiology
Plant
Plant Cells
Plant Development
plant organs
Plant Proteins
Plant Proteins - metabolism
Plant reproductive structures
Plants
Plants - genetics
Plants - metabolism
pollen
Proline
Proline - metabolism
Proline - toxicity
Protein transport
Proteins
Proteomics
Regulation
Review Article
RNA, Plant
Seeds
solutes
toxicity
Transport
transporters
Proline
Development
Plant
Regulation
Metabolism
Transport
ISSN:0939-4451, 1438-2199, 1438-2199
Online Access:Get full text
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Summary:Proline fulfils diverse functions in plants. As amino acid it is a structural component of proteins, but it also plays a role as compatible solute under environmental stress conditions. Proline metabolism involves several subcellular compartments and contributes to the redox balance of the cell. Proline synthesis has been associated with tissues undergoing rapid cell divisions, such as shoot apical meristems, and appears to be involved in floral transition and embryo development. High levels of proline can be found in pollen and seeds, where it serves as compatible solute, protecting cellular structures during dehydration. The proline concentrations of cells, tissues and plant organs are regulated by the interplay of biosynthesis, degradation and intra- as well as intercellular transport processes. Among the proline transport proteins characterized so far, both general amino acid permeases and selective compatible solute transporters were identified, reflecting the versatile role of proline under stress and non-stress situations. The review summarizes our current knowledge on proline metabolism and transport in view of plant development, discussing regulatory aspects such as the influence of metabolites and hormones. Additional information from animals, fungi and bacteria is included, showing similarities and differences to proline metabolism and transport in plants.
Bibliography:http://dx.doi.org/10.1007/s00726-010-0525-3
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ISSN:0939-4451
1438-2199
1438-2199
DOI:10.1007/s00726-010-0525-3