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231222s2000 xx ||||| 00| ||eng c |
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|a pubmed25n0362.xml
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|a (NLM)10938812
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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 |
1 |
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|a Yoneyama, T
|e verfasserin
|4 aut
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|a Weather and nodule mediated variations in delta 13C and delta 15N values in field-grown soybean (Glycine max L.) with special interest in the analyses of xylem fluids
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|c 2000
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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 01.09.2000
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|a Date Revised 13.12.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a The nodulating soybean (Enrei) and its non-nodulating mutant (EN 1282) were grown in outdoor plots for 2 years (1994: extraordinary dry, high temperature, 1995: ordinary year). Carbon and nitrogen accumulation, delta 13C and delta 15N values in plant parts and xylem fluids and delta 15N values in the water-extractable soil N were analysed throughout the growing period. Plant growth in 1994 was rapid during the early growth stages, but no pods were produced. In 1995, plant growth was normal and pods were formed. The delta 13C values of the leaves were less negative in 1994 than in 1995 and the nodulated plants showed less negative delta 13C values than non-nodulated plants in both years. The delta 13C values of the leaves during the vegetative phase were positively correlated to the leaf N concentrations. Leaf N concentrations in their turn were influenced by nodulation and weather conditions and/or soil available N. The delta 15N values in the plants and xylem fluids were lower in the nodulated soybean than in non-nodulated soybean in both years, and estimates of the contribution of N2 fixation in nodulated plants based on plant top delta 15N values were 7-14% in 1994 and 37-63% in 1995. The delta 13C values of xylem fluids did not differ between nodulated and non-nodulated plants. Thus, the expected contribution by phosphopenolpyruvate carboxylase-mediated CO2 fixation in the root nodules to plant C-incorporation could not have been significant
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|a Journal Article
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|a Carbon Isotopes
|2 NLM
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|a Nitrogen Isotopes
|2 NLM
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|a Carbon
|2 NLM
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|a 7440-44-0
|2 NLM
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|a Phosphoenolpyruvate Carboxylase
|2 NLM
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| 650 |
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|a EC 4.1.1.31
|2 NLM
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| 650 |
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|a Ribulose-Bisphosphate Carboxylase
|2 NLM
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| 650 |
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|a EC 4.1.1.39
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 700 |
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|a Fujiwara, H
|e verfasserin
|4 aut
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|a Engelaar, W M
|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), 344 vom: 01. März, Seite 559-66
|w (DE-627)NLM098182706
|x 0022-0957
|7 nnns
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| 773 |
1 |
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|g volume:51
|g year:2000
|g number:344
|g day:01
|g month:03
|g pages:559-66
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|d 51
|j 2000
|e 344
|b 01
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|h 559-66
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