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https://hdl.handle.net/2440/62175
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dc.contributor.author | Schnurbusch, T. | - |
dc.contributor.author | Hayes, J. | - |
dc.contributor.author | Hrmova, M. | - |
dc.contributor.author | Baumann, U. | - |
dc.contributor.author | Ramesh, S. | - |
dc.contributor.author | Tyerman, S. | - |
dc.contributor.author | Langridge, P. | - |
dc.contributor.author | Sutton, T. | - |
dc.date.issued | 2010 | - |
dc.identifier.citation | Plant Physiology, 2010; 153(4):1706-1715 | - |
dc.identifier.issn | 0032-0889 | - |
dc.identifier.issn | 1532-2548 | - |
dc.identifier.uri | http://hdl.handle.net/2440/62175 | - |
dc.description.abstract | Boron (B) toxicity is a significant limitation to cereal crop production in a number of regions worldwide. Here we describe the cloning of a gene from barley, underlying the chromosome 6H B toxicity tolerance QTL. It is the second B toxicity tolerance gene identified in barley. Previously, we identified the gene HvBot1 which functions as an efflux transporter in B toxicity tolerant barley to move B out of the plant. The gene identified in this work encodes HvNIP2;1, an aquaporin from the NIP subfamily which was recently described as a silicon influx transporter in barley and rice. Here we show that a rice mutant for this gene also shows reduced B accumulation in leaf blades compared to wild type and that the mutant protein alters growth of yeast under high B. HvNIP2;1 facilitates significant transport of B when expressed in Xenopus oocytes compared to controls and to another NIP (NOD26), and also in yeast plasma membranes which appear to have relatively high B permeability. We propose that tolerance to high soil B is mediated by reduced expression of HvNIP2;1 to limit B uptake as well as by increased expression of HvBot1 to remove B from roots and sensitive tissues. Together with HvBot1, the multifunctional aquaporin HvNIP2;1 is an important determinant of B toxicity tolerance in barley. | - |
dc.description.statementofresponsibility | Thorsten Schnurbusch, Julie Hayes, Maria Hrmova, Ute Baumann, Sunita A. Ramesh, Stephen D. Tyerman, Peter Langridge and Tim Sutton | - |
dc.language.iso | en | - |
dc.publisher | Amer Soc Plant Physiologists | - |
dc.rights | Copyright © 2010 by the American Society of Plant Biologists | - |
dc.source.uri | http://www.plantphysiol.org/cgi/content/short/pp.110.158832v1 | - |
dc.subject | Oocytes | - |
dc.subject | Animals | - |
dc.subject | Xenopus | - |
dc.subject | Saccharomyces cerevisiae | - |
dc.subject | Hordeum | - |
dc.subject | Boron | - |
dc.subject | Aquaporins | - |
dc.subject | Plant Proteins | - |
dc.subject | Chromosome Mapping | - |
dc.subject | Cloning, Molecular | - |
dc.subject | Gene Expression Regulation, Plant | - |
dc.subject | Mutation | - |
dc.subject | Quantitative Trait Loci | - |
dc.subject | Models, Molecular | - |
dc.subject | Molecular Sequence Data | - |
dc.subject | Oryza | - |
dc.title | Boron toxicity tolerance in barley through reduced expression of the multifunctional aquaporin HvNIP2;1 | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1104/pp.110.158832 | - |
dc.relation.grant | ARC | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Hayes, J. [0000-0001-8716-5024] | - |
dc.identifier.orcid | Hrmova, M. [0000-0002-3545-0605] | - |
dc.identifier.orcid | Baumann, U. [0000-0003-1281-598X] | - |
dc.identifier.orcid | Ramesh, S. [0000-0003-2230-4737] | - |
dc.identifier.orcid | Tyerman, S. [0000-0003-2455-1643] | - |
dc.identifier.orcid | Langridge, P. [0000-0001-9494-400X] | - |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest |
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