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http://krishi.icar.gov.in/jspui/handle/123456789/31764
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Nancy M. Heidlebaugh, Brian R. Trethewey, Aravind K. Jukanti et al | en_US |
dc.date.accessioned | 2020-02-10T10:18:57Z | - |
dc.date.available | 2020-02-10T10:18:57Z | - |
dc.date.issued | 2008-01-01 | - |
dc.identifier.citation | Not Available | en_US |
dc.identifier.issn | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/31764 | - |
dc.description | Not Available | en_US |
dc.description.abstract | A large fraction of protein N harvested with crop seeds is derived from N remobilisation from senescing vegetative plant parts, while a smaller fraction stems from de novo N assimilation occurring after anthesis. This study contrasts near-isogenic barley (Hordeum vulgare L.) germplasm, varying in the allelic state of a major grain protein content (GPC) locus on chromosome 6. Plant material was grown under both low- and high-N fertilisation levels. The analyses indicated that leafNremobilisation occurred earlier in high-GPC germplasm under both fertilisation regimes, as indicated by an earlier decrease of total leaf N, chlorophylls, soluble- and membrane-proteins. At the same time, kernel free amino acid levels were enhanced, while leaf free amino acid levels were lower in high-GPC barleys, suggesting enhanced retranslocation of organic N to the developing sinks. Enhanced or longer availability of leaf nitrates was detected in high-GPC varieties and lines, at least under high N fertilisation, indicating that the GPC locus profoundly influences whole-plant N allocation and management. Results presented here, together with data from a recent transcriptomic analysis, make a substantial contribution to our understanding of whole-plant N storage, remobilisation and retranslocation to developing sinks. | en_US |
dc.description.sponsorship | Not Available | en_US |
dc.language.iso | English | en_US |
dc.publisher | Not Available | en_US |
dc.relation.ispartofseries | Not Available; | - |
dc.subject | nitrogen assimilation, nitrogen remobilisation, nitrogen transport, proteolysis, senescence | en_US |
dc.title | Effects of a barley (Hordeum vulgare) chromosome 6 grain protein content locus on whole-plant nitrogen reallocation under two different fertilisation regimes | en_US |
dc.title.alternative | Not Available | en_US |
dc.type | Research Paper | en_US |
dc.publication.projectcode | Not Available | en_US |
dc.publication.journalname | Functional Plant Biology | en_US |
dc.publication.volumeno | 35 | en_US |
dc.publication.pagenumber | 619–632 | en_US |
dc.publication.divisionUnit | Plant Science & Plant Pathology | en_US |
dc.publication.sourceUrl | Not Available | en_US |
dc.publication.authorAffiliation | Montana State University, Bozeman | en_US |
dc.ICARdataUseLicence | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf | en_US |
dc.publication.naasrating | 8.62 | en_US |
Appears in Collections: | CS-IIRR-Publication |
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