| Salt sensitivity in chickpea. | |
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MedLine Citation:
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PMID: 19843257 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The growth of chickpea (Cicer arietinum L.) is very sensitive to salinity, with the most susceptible genotypes dying in just 25 mm NaCl and resistant genotypes unlikely to survive 100 mm NaCl in hydroponics; germination is more tolerant with some genotypes tolerating 320 mm NaCl. When growing in a saline medium, Cl(-), which is secreted from glandular hairs on leaves, stems and pods, is present in higher concentrations in shoots than Na(+). Salinity reduces the amount of water extractable from soil by a chickpea crop and induces osmotic adjustment, which is greater in nodules than in leaves or roots. Chickpea rhizobia show a higher 'free-living' salt resistance than chickpea plants, and salinity can cause large reductions in nodulation, nodule size and N(2)-fixation capacity. Recent screenings of diverse germplasm suggest significant variation of seed yield under saline conditions. Both dominance and additive gene effects have been identified in the effects of salinity on chickpea and there appears to be sufficient genetic variation to enable improvement in yield under saline conditions via breeding. Selections are required across the entire life cycle with a range of rhizobial strains under salt-affected, preferably field, conditions. |
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Authors:
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Timothy J Flowers; Pooran M Gaur; C L Laxmipathi Gowda; L Krishnamurthy; Srinivasan Samineni; Kadambot H M Siddique; Neil C Turner; Vincent Vadez; Rajeev K Varshney; Timothy D Colmer |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Review Date: 2009-10-14 |
Journal Detail:
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Title: Plant, cell & environment Volume: 33 ISSN: 1365-3040 ISO Abbreviation: Plant Cell Environ. Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-04-26 Completed Date: 2010-07-15 Revised Date: 2010-07-20 |
Medline Journal Info:
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Nlm Unique ID: 9309004 Medline TA: Plant Cell Environ Country: United States |
Other Details:
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Languages: eng Pagination: 490-509 Citation Subset: IM |
Affiliation:
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University of Sussex, Falmer, Brighton, UK. T.J.Flowers@sussex.ac.uk <T.J.Flowers@sussex.ac.uk> |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Cicer
/
drug effects*,
genetics,
growth & development,
microbiology Gene Expression Regulation, Plant Germination Nitrogen Fixation Rhizobium / drug effects Root Nodules, Plant / growth & development, metabolism Salinity Sodium Chloride / pharmacology* Water / metabolism |
| Chemical | |
Reg. No./Substance:
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7647-14-5/Sodium Chloride; 7732-18-5/Water |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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