Closing the Loop on the GABA Shunt in Plants: Are GABA metabolism and signaling entwined?

γ-Aminobutyric acid (GABA) is a non-proteinogenic amino acid that is found in uni- and multi-cellular organisms and is involved in many aspects of plant life cycle. GABA metabolism occurs by the action of evolutionary conserved enzymes that constitute the GABA shunt, bypassing two steps of the TCA c...

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Main Authors: Simon eMichaeli, Hillel eFromm
Format: Article
Language:English
Published: Frontiers Media S.A. 2015-06-01
Series:Frontiers in Plant Science
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fpls.2015.00419/full
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author Simon eMichaeli
Hillel eFromm
author_facet Simon eMichaeli
Hillel eFromm
author_sort Simon eMichaeli
collection DOAJ
description γ-Aminobutyric acid (GABA) is a non-proteinogenic amino acid that is found in uni- and multi-cellular organisms and is involved in many aspects of plant life cycle. GABA metabolism occurs by the action of evolutionary conserved enzymes that constitute the GABA shunt, bypassing two steps of the TCA cycle. The central position of GABA in the interface between plant carbon and nitrogen metabolism is well established. In parallel, there is evidence to support a role for GABA as a signaling molecule in plants. Here we cover some of the recent findings on GABA metabolism and signaling in plants and further suggest that both the metabolic and signaling aspects of GABA may actually be inseparable.
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spelling doaj.art-a9fb6cc40eba4b3c9fd1c428f87f3a322022-12-22T02:03:50ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2015-06-01610.3389/fpls.2015.00419145458Closing the Loop on the GABA Shunt in Plants: Are GABA metabolism and signaling entwined?Simon eMichaeli0Hillel eFromm1Tel Aviv UniversityTel Aviv Universityγ-Aminobutyric acid (GABA) is a non-proteinogenic amino acid that is found in uni- and multi-cellular organisms and is involved in many aspects of plant life cycle. GABA metabolism occurs by the action of evolutionary conserved enzymes that constitute the GABA shunt, bypassing two steps of the TCA cycle. The central position of GABA in the interface between plant carbon and nitrogen metabolism is well established. In parallel, there is evidence to support a role for GABA as a signaling molecule in plants. Here we cover some of the recent findings on GABA metabolism and signaling in plants and further suggest that both the metabolic and signaling aspects of GABA may actually be inseparable.http://journal.frontiersin.org/Journal/10.3389/fpls.2015.00419/fullArabidopsisgamma-Aminobutyric AcidGlutamate DecarboxylaseTricarboxylic AcidsstressGABA shunt
spellingShingle Simon eMichaeli
Hillel eFromm
Closing the Loop on the GABA Shunt in Plants: Are GABA metabolism and signaling entwined?
Frontiers in Plant Science
Arabidopsis
gamma-Aminobutyric Acid
Glutamate Decarboxylase
Tricarboxylic Acids
stress
GABA shunt
title Closing the Loop on the GABA Shunt in Plants: Are GABA metabolism and signaling entwined?
title_full Closing the Loop on the GABA Shunt in Plants: Are GABA metabolism and signaling entwined?
title_fullStr Closing the Loop on the GABA Shunt in Plants: Are GABA metabolism and signaling entwined?
title_full_unstemmed Closing the Loop on the GABA Shunt in Plants: Are GABA metabolism and signaling entwined?
title_short Closing the Loop on the GABA Shunt in Plants: Are GABA metabolism and signaling entwined?
title_sort closing the loop on the gaba shunt in plants are gaba metabolism and signaling entwined
topic Arabidopsis
gamma-Aminobutyric Acid
Glutamate Decarboxylase
Tricarboxylic Acids
stress
GABA shunt
url http://journal.frontiersin.org/Journal/10.3389/fpls.2015.00419/full
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AT hillelefromm closingthelooponthegabashuntinplantsaregabametabolismandsignalingentwined