Source:http://linkedlifedata.com/resource/pubmed/id/16667269
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
1
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| pubmed:dateCreated |
2010-6-29
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| pubmed:abstractText |
Zea mays L. (cv Dea) plants grown to the stage of stalk elongation, were allowed to assimilate (13)CO(2) and (15)N-nitrates from 45 to 53 days after sowing. Isotopic abundances in labeled nutrients were slightly enriched compared to natural abundances. The new C in plant was acropetally distributed and the new N was preferentially accumulated in the sheath and stalk in the medium region. C input was 25-fold higher than N input. The new C in total plant C was 20%, whereas it was 10% for N. The stalk acted as a major sink because it accumulated, respectively, 27.5 and 47.5% of the C and N inputs. The new C in soluble carbohydrates was 76% in growing organs (upper stalk) and only 39% in source leaves, whereas it was 43% and 13% in starch, respectively. New N in nitrates+amino-acids spanned in the range from 20% (leaf) to 50% (stalk). New C and N in soluble proteins were, respectively, 13.4 and 3.8% in leaves, 8.8 and 9.6% in stalk, and 8.7 and 14.3% in roots. In the middle stalk and leaves, the proteins and carbohydrates represent an equivalent C and N source for remobilization.
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| pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-13412116,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-16660297,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-16661839,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-16662072,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-16662636,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-16662738,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-16663675,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-16663684,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-16665237,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-3843705,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16667269-6615430
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Jan
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| pubmed:issn |
0032-0889
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:volume |
92
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
79-87
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| pubmed:dateRevised |
2010-9-15
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| pubmed:year |
1990
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| pubmed:articleTitle |
Estimation of Carbon and Nitrogen Allocation during Stalk Elongation by C and N Tracing in Zea mays L.
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| pubmed:affiliation |
Laboratoire du Métabolisme et de la Nutrition des Plantes, INRA, 78026 Versailles Cedex, France.
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| pubmed:publicationType |
Journal Article
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