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2 edition of Characterization of the role and regulation of the plant AtNHX cation/proton antiporter family found in the catalog.

Characterization of the role and regulation of the plant AtNHX cation/proton antiporter family

Gilad S. Aharon

Characterization of the role and regulation of the plant AtNHX cation/proton antiporter family

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Published in 2003 .
Written in English


Edition Notes

Statementby Gilad S. Aharon..
The Physical Object
Paginationii, 160 leaves :
Number of Pages160
ID Numbers
Open LibraryOL21594606M
ISBN 100612782999


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Characterization of the role and regulation of the plant AtNHX cation/proton antiporter family by Gilad S. Aharon Download PDF EPUB FB2

Get this from a library. Characterization of the role and regulation of the plant AtNHX cation/proton antiporter family. [Gilad S Aharon]. Salinity is one of the major abiotic constraints to agriculture.

The physiological and molecular mechanisms of salt tolerance have been studied in plants for many years. The regulation of osmosis and ion homeostasis is crucial.

A lot of important components involved in plant responses to salt stress have been identified. Among them, ion transporters and channels take an essential role Cited by: 5. Although physiological and biochemical data since long suggested that Na + /H + and K + /H + antiporters are involved in intracellular ion and pH regulation in plants, it has taken a long time to identify genes encoding antiporters that could fulfil these roles.

Genome sequencing projects have now shown that plants contain a very large number of putative Cation/Proton antiporters, the Cited by: A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.

Cloning and characterization of a wheat vacuolar cation/proton antiporter and pyrophosphatase proton pump Article (PDF Available) in Plant Physiology and Biochemistry 43(4). The cation/proton antiporter superfamily is associated with the transport of monovalent cations across membranes.

This superfamily was annotated in the Arabidopsis genome and some members were functionally characterized. In the present study, a systematic analysis of the cation/proton antiporter genes in diverse plant species was by:   Cation transport is thought to be an important process for ion homeostasis in plant cells.

Here, we report that a soybean putative cation/proton antiporter GmCAX1 may be a mediator of this process. GmCAX1 is expressed in all tissues of the soybean plants but at a lower level in roots. Its expression was induced by PEG, ABA, Ca2+, Na+ and Li+ by:   Both Class-I and Class-II plant NHX isoforms complement NaCl, KCl and hygromycin sensitivity of the yeast ScNHX1 disruption mutant.

16, 28, 38 It is thus tempting to suggest a role for plant NHX proteins in endosomal pH regulation and protein trafficking as well. The effect of expression of plant NHX genes in yeast on protein trafficking was Cited by: Genome sequencing projects have now shown that plants contain a very large number of putative Cation/Proton antiporters, the function of which is only beginning to be studied.

The intracellular NHX transporters constitute the first Cation/Proton exchanger family studied in by:   Phylogeny of NHX-type cation/proton antiporters. Plant NHXs belong to a large super family of monovalent CPAs that is made up of two subgroups, CPA1 and CPA2 (Saier et al., ; Brett et al., a).

The CPA2 family includes members of the lesser known cation/H + antiporters (CHXs), which contains 28 genes divided into eight subclades in Cited by: Salinity is one of the major environment factors that limits the growth of plants and the productivity of crops worldwide. It has been shown that Na+ transporters play a central role in salt tolerance and development of plants.

The objective of this study was to identify Na+/H+ antiporter (NHX) genes and investigate their expression patterns in sugar beet (Beta vulgaris L.) subjected to Cited by: 2. AtNHX8, a member of the monovalent cation:proton antiporter-1 family in Arabidopsis thaliana, encodes a putative Li/H antiporter.

THE PLANT JOURNAL AT1G AT2G AT5G   Plants remodel their cells through the dynamic endomembrane system. Intracellular pH is important for membrane trafficking, but the determinants of pH homeostasis are poorly defined in plants. Electrogenic proton (H+) pumps depend on counter-ion fluxes to establish transmembrane pH gradients at the plasma membrane and endomembranes.

Vacuolar-type Cited by:   Intracellular NHX proteins are Na+,K+/H+ antiporters involved in K+ homeostasis, endosomal pH regulation, and salt tolerance. Proteins NHX1 and NHX2 are the two major tonoplast-localized NHX isoforms.

Here, we show that NHX1 and NHX2 have similar expression patterns and identical biochemical activity, and together they account for a significant amount Cited by: The possible physiological role of the cation / H + exchanger A. laidlawii is a fermentative mycoplasma that procedure large amounts of acid during sugar fermentation [1].

Whereas fermentative Mycoplasma species (i.e. capricolum [18] grew well at pH values in the range ofand only a decrease in the pH to less than caused a Cited by: 6. Regulation of expression of the vacuolar Na+/H+ antiporter gene AtNHX1 by salt stress and abscisic acid.

Shi, H., Zhu, J.K. Plant Mol. Biol. () Topogenic properties of transmembrane segments of Arabidopsis thaliana NHX1 reveal a common topology model of the Na+/H+ exchanger family. Sato, Y., Sakaguchi, M.

Biochem. The U.S. Department of Energy's Office of Scientific and Technical Information. The C-terminal hydrophilic region of AtNHX1 plays an important role in regulating the antiporter activity. The binding of AtCaM15 to this domain of AtNHX1 was Ca 2+ - and pH-dependent and modified the Na +-K + selectivity of the antiporter, decreasing its Na + /H + exchange activity.

Mutation VI seems to mimic this effect by an as yet. DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

DeepDyve is the easiest way to get instant access to the academic journals you need. Both Class-I and Class-II plant NHX isoforms complement NaCl, KCl and hygromycin sensitivity of the yeast ScNHX1 disruption mutant. 16, 28, 38 It is thus tempting to suggest a role for plant NHX proteins in endosomal pH regulation and protein trafficking as well.

The effect of expression of plant NHX genes in yeast on protein trafficking was Cited by:   The present invention relates to a transgenic plant which is tolerant to a salt, comprising one or more plant cells transformed with exogenous nucleic acid which alters expression of vacuolar pyrophos.

Demidchik and F. Maathuis (eds.), Ion Channels and Plant Stress Responses, Signaling and Communication in Plants, DOI /_1, # Springer-Verlag Berlin Heidelberg 1 2 N. Uozumi and J.I.

Schroeder. Rice biology in the genomics era (Biotechnology in Agriculture and Forestry, Vol. 62) Home ; Rice biology in the genomics era (Biotechnology in Agriculture and Forestry, Vol. 62). {"markup":"\uC?xml version=\u\u encoding=\uUTF-8\u?\uE\n \uChtml version=\uHTML+RDFa+MathML \u\n xmlns:content=\uhttp.

Paulo Filipe Pereira de Jesus Silva Biochemical and molecular mechanisms of salt stress tolerance in Populus euphratica and Olea europaea UMinho| Universidade do Minho Escola de Ciências Paulo Filipe Pereira de Jesus Silva Biochemical and molecular mechanisms of salt stress tolerance in Populus euphratica and Olea europaea Junho de Universidade do.

Abiotic stress. ABIOTIC STRESS RESPONSE IN PLANTS PHYSIOLOGICAL, BIOCHEMICAL AND GENETIC PERSPECTIVES Edited by Arun Kumar Shanker and B. Venkateswarlu Abiotic Stress Response in Plants Physiological, Biochemical and.