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20231222145546.0 |
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231222s2000 xx ||||| 00| ||eng c |
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|a pubmed24n0362.xml
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|a (NLM)10938794
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Robinson, D
|e verfasserin
|4 aut
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| 245 |
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|a Using stable isotope natural abundances (delta 15N and delta 13C) to integrate the stress responses of wild barley (Hordeum spontaneum C. Koch.) genotypes
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|c 2000
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 25.08.2000
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|a Date Revised 15.11.2006
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|a published: Print
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|a Citation Status MEDLINE
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|a To integrate the complex physiological responses of plants to stress, natural abundances (delta) of the stable isotope pairs 15N/14N and 13C/12C were measured in 30 genotypes of wild barley (Hordeum spontaneum C. Koch.). These accessions, originating from ecologically diverse sites, were grown in a controlled environment and subjected to mild, short-term drought or N-starvation. Increases in total dry weight were paralleled by less negative delta 13C in shoots and, in unstressed and droughted plants, by less negative whole-plant delta 13C. Root delta 15N was correlated negatively with total dry weight, whereas shoot and whole-plant delta 15N were not correlated with dry weight. The difference in delta 15N between shoot and root varied with stress in all genotypes. Shoot-root delta 15N may be a more sensitive indicator of stress response than shoot, root or whole-plant delta 15N alone. Among the potentially most productive genotypes, the most stress-tolerant had the most negative whole-plant delta 15N, whether the stress was drought or N-starvation. In common, controlled experiments, genotypic differences in whole-plant delta 15N may reflect the extent to which N can be retained within plants when stressed
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|a Journal Article
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| 650 |
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Carbon Isotopes
|2 NLM
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| 650 |
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|a Nitrogen Isotopes
|2 NLM
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| 700 |
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|a Handley, L L
|e verfasserin
|4 aut
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| 700 |
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|a Scrimgeour, C M
|e verfasserin
|4 aut
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| 700 |
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|a Gordon, D C
|e verfasserin
|4 aut
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| 700 |
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|a Forster, B P
|e verfasserin
|4 aut
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| 700 |
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|a Ellis, R P
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 51(2000), 342 vom: 01. Jan., Seite 41-50
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:51
|g year:2000
|g number:342
|g day:01
|g month:01
|g pages:41-50
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|a GBV_USEFLAG_A
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|a AR
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|d 51
|j 2000
|e 342
|b 01
|c 01
|h 41-50
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