| Anthocyanin pathway in rice (Oryza sativa L): identification of a mutant showing dominant inhibition of anthocyanins in leaf and accumulation of proanthocyanidins in pericarp. | |
MedLine Citation:
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PMID: 24169778 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The present study has surveyed a collection of indica rice (Oryza sativa) lines for tissue-specific anthocyanin pigmentation pattern, which has also been used for a genetically meaningful classification. This classification helped predict probable genotypes of rice lines and, in the process, a leaf blade-specific dominant inhibitor of pigmentation (Ilb) was predicted and its presence later confirmed in two lines. We ascribe most tissue-specific accumulation of anthocyanins to the presence of a different set of Pl alleles. Cyanidin, as a major pigment, and peonidin, as a minor pigment, were detected in purple-pigmented tissues. Further, the floral organ-derived tissues always contained a higher level of anthocyanins and, correspondingly, a relatively increased proportion of peonidin. One line, N22B, with a brown pericarp was identified and shown to accumulate proanthocyanidins, but with no anthocyanins, in the pericarp. We propose that the accumulation of proanthocyanidins is due to a block in the anthocyanin biosynthetic pathway in rice at the anthocyanidin synthase-mediated conversion of leucoanthocyanidin to anthocyanidin. |
Authors:
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V S Reddy; S Dash; A R Reddy |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik Volume: 91 ISSN: 0040-5752 ISO Abbreviation: Theor. Appl. Genet. Publication Date: 1995 Jul |
Date Detail:
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Created Date: 2013-10-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0145600 Medline TA: Theor Appl Genet Country: Germany |
Other Details:
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Languages: eng Pagination: 301-12 Citation Subset: - |
Affiliation:
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Plant Molecular Genetics Laboratory, Departement of Plant Sciences, School of Life Sciences, University of Hyderabad, 500134, AP, India. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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