Document Detail


Salt sensitivity in chickpea.
MedLine Citation:
PMID:  19843257     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
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:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review     Date:  2009-10-14
Journal Detail:
Title:  Plant, cell & environment     Volume:  33     ISSN:  1365-3040     ISO Abbreviation:  Plant Cell Environ.     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-04-26     Completed Date:  2010-07-15     Revised Date:  2010-07-20    
Medline Journal Info:
Nlm Unique ID:  9309004     Medline TA:  Plant Cell Environ     Country:  United States    
Other Details:
Languages:  eng     Pagination:  490-509     Citation Subset:  IM    
Affiliation:
University of Sussex, Falmer, Brighton, UK. T.J.Flowers@sussex.ac.uk <T.J.Flowers@sussex.ac.uk>
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MeSH Terms
Descriptor/Qualifier:
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:
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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