Source:http://linkedlifedata.com/resource/pubmed/id/19140945
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2011-4-1
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pubmed:abstractText |
Terminal drought is a risk for wheat production in many parts of the world. Robust physiological traits for resilience would enhance the preselection of breeding lines in drought-prone areas. Three pot experiments were undertaken to characterize stem water-solublecarbohydrate (WSC), fructan exohydrolase expression, grain filling and leaf gas exchange in wheat (Triticum aestivum) varieties, Kauz and Westonia, which are considered to be drought-tolerant.Water deficit accelerated the remobilization of stem WSC in Westonia but not in Kauz. The profile of WSC accumulation and loss was negatively correlated with them RNA concentration of 1-FEH, especially 1-FEH w3 (1-FEH-6B). Under water deficit, Westonia showed lower concentrations of WSC than Kauz but did not show a corresponding drop in grain yield. The results from pot experiments suggest that stem WSC concentration is not, on its own, a reliable criterion to identify potential grain yield in wheat exposed to water deficits during grain filling. The expression of 1-FEH w3 may provide a better indicator when linked to osmotic potential and green leaf retention, and this requires validation in field-grown plants.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Glycoside Hydrolases,
http://linkedlifedata.com/resource/pubmed/chemical/Plant Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Water,
http://linkedlifedata.com/resource/pubmed/chemical/fructan beta-fructosidase
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
1469-8137
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
181
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
843-50
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pubmed:meshHeading |
pubmed-meshheading:19140945-Carbohydrate Metabolism,
pubmed-meshheading:19140945-Droughts,
pubmed-meshheading:19140945-Genotype,
pubmed-meshheading:19140945-Glycoside Hydrolases,
pubmed-meshheading:19140945-Osmotic Pressure,
pubmed-meshheading:19140945-Photosynthesis,
pubmed-meshheading:19140945-Plant Proteins,
pubmed-meshheading:19140945-Plant Stems,
pubmed-meshheading:19140945-RNA, Messenger,
pubmed-meshheading:19140945-Solubility,
pubmed-meshheading:19140945-Stress, Physiological,
pubmed-meshheading:19140945-Triticum,
pubmed-meshheading:19140945-Water
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pubmed:year |
2009
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pubmed:articleTitle |
Water deficits in wheat: fructan exohydrolase (1-FEH) mRNA expression and relationship to soluble carbohydrate concentrations in two varieties.
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pubmed:affiliation |
Faculty of Sustainability, Environmental and Life Sciences, Murdoch University, South Street, WA, Australia.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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