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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Vydané v:	Amino acids Ročník 39; číslo 4; s. 949 - 962
Hlavní autori:	Lehmann, Silke, Funck, Dietmar, Szabados, László, Rentsch, Doris
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Vienna Vienna : Springer Vienna 01.10.2010 Springer Vienna Springer Nature B.V
Predmet:	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
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Shrnutí:	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.
Bibliografia:	http://dx.doi.org/10.1007/s00726-010-0525-3 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Review-3 content type line 23
ISSN:	0939-4451 1438-2199 1438-2199
DOI:	10.1007/s00726-010-0525-3