Evaluating physiological responses of plants to salinity stress

Handle URI:
http://hdl.handle.net/10754/622040
Title:
Evaluating physiological responses of plants to salinity stress
Authors:
Negrão, Sónia; Schmöckel, S. M.; Tester, Mark A. ( 0000-0002-5085-8801 )
Abstract:
Background Because soil salinity is a major abiotic constraint affecting crop yield, much research has been conducted to develop plants with improved salinity tolerance. Salinity stress impacts many aspects of a plant’s physiology, making it difficult to study in toto. Instead, it is more tractable to dissect the plant’s response into traits that are hypothesized to be involved in the overall tolerance of the plant to salinity. Scope and conclusions We discuss how to quantify the impact of salinity on different traits, such as relative growth rate, water relations, transpiration, transpiration use efficiency, ionic relations, photosynthesis, senescence, yield and yield components. We also suggest some guidelines to assist with the selection of appropriate experimental systems, imposition of salinity stress, and obtaining and analysing relevant physiological data using appropriate indices. We illustrate how these indices can be used to identify relationships amongst the proposed traits to identify which traits are the most important contributors to salinity tolerance. Salinity tolerance is complex and involves many genes, but progress has been made in studying the mechanisms underlying a plant’s response to salinity. Nevertheless, several previous studies on salinity tolerance could have benefited from improved experimental design. We hope that this paper will provide pertinent information to researchers on performing proficient assays and interpreting results from salinity tolerance experiments.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Negrão S, Schmöckel SM, Tester M (2016) Evaluating physiological responses of plants to salinity stress. Annals of Botany: mcw191. Available: http://dx.doi.org/10.1093/aob/mcw191.
Publisher:
Oxford University Press (OUP)
Journal:
Annals of Botany
Issue Date:
6-Oct-2016
DOI:
10.1093/aob/mcw191
Type:
Article
ISSN:
0305-7364; 1095-8290
Sponsors:
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). We thank Dr Christina Morris and Virginia Unkefer for editing the manuscript and Dr David E. Jarvis for providing us with unpublished data.
Additional Links:
http://aob.oxfordjournals.org/content/early/2016/10/03/aob.mcw191
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorNegrão, Sóniaen
dc.contributor.authorSchmöckel, S. M.en
dc.contributor.authorTester, Mark A.en
dc.date.accessioned2016-12-20T05:52:11Z-
dc.date.available2016-12-20T05:52:11Z-
dc.date.issued2016-10-06en
dc.identifier.citationNegrão S, Schmöckel SM, Tester M (2016) Evaluating physiological responses of plants to salinity stress. Annals of Botany: mcw191. Available: http://dx.doi.org/10.1093/aob/mcw191.en
dc.identifier.issn0305-7364en
dc.identifier.issn1095-8290en
dc.identifier.doi10.1093/aob/mcw191en
dc.identifier.urihttp://hdl.handle.net/10754/622040-
dc.description.abstractBackground Because soil salinity is a major abiotic constraint affecting crop yield, much research has been conducted to develop plants with improved salinity tolerance. Salinity stress impacts many aspects of a plant’s physiology, making it difficult to study in toto. Instead, it is more tractable to dissect the plant’s response into traits that are hypothesized to be involved in the overall tolerance of the plant to salinity. Scope and conclusions We discuss how to quantify the impact of salinity on different traits, such as relative growth rate, water relations, transpiration, transpiration use efficiency, ionic relations, photosynthesis, senescence, yield and yield components. We also suggest some guidelines to assist with the selection of appropriate experimental systems, imposition of salinity stress, and obtaining and analysing relevant physiological data using appropriate indices. We illustrate how these indices can be used to identify relationships amongst the proposed traits to identify which traits are the most important contributors to salinity tolerance. Salinity tolerance is complex and involves many genes, but progress has been made in studying the mechanisms underlying a plant’s response to salinity. Nevertheless, several previous studies on salinity tolerance could have benefited from improved experimental design. We hope that this paper will provide pertinent information to researchers on performing proficient assays and interpreting results from salinity tolerance experiments.en
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). We thank Dr Christina Morris and Virginia Unkefer for editing the manuscript and Dr David E. Jarvis for providing us with unpublished data.en
dc.publisherOxford University Press (OUP)en
dc.relation.urlhttp://aob.oxfordjournals.org/content/early/2016/10/03/aob.mcw191en
dc.rightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectAssessing salinity toleranceen
dc.subjectsalt-imposition systemsen
dc.subjectquantifying physiological traitsen
dc.subjectanalysing salinity dataen
dc.subjecttolerance indicesen
dc.subjectsalt stress phenotypingen
dc.subjectosmotic stressen
dc.titleEvaluating physiological responses of plants to salinity stressen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalAnnals of Botanyen
dc.eprint.versionPublisher's Version/PDFen
kaust.authorNegrão, Sóniaen
kaust.authorSchmöckel, S. M.en
kaust.authorTester, Mark A.en
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