| Early biosynthetic pathway to abscisic acid in Cercospora cruenta. | |
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MedLine Citation:
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PMID: 11129578 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A new biosynthetic intermediate of ABA, (2Z,4E)-gamma-ionylideneacetaldehyde, was isolated from young mycelia of Cercospora cruenta. Under an (18)O2 atmosphere, an oxygen atom of this endogenous aldehyde was exclusively labeled. Similarly, three (18)O atoms were incorporated into the ABA molecule recovered after prolonged incubation; selectively labeled were one of the carboxyl oxygen atoms and the two on the ring portion of ABA. A feeding experiment with [1-(13)C]glucose proved the exclusive operation of the mevalonate pathway for the formation of both ABA and beta-carotene. These results suggest that (2Z,4E)-gamma-ionylideneacetaldehyde can be a key ABA biosynthetic intermediate formed by the oxidative cleavage of a carotenoid precursor. |
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Authors:
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H Yamamoto; M Inomata; S Tsuchiya; M Nakamura; T Uchiyama; T Oritani |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Bioscience, biotechnology, and biochemistry Volume: 64 ISSN: 0916-8451 ISO Abbreviation: Biosci. Biotechnol. Biochem. Publication Date: 2000 Oct |
Date Detail:
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Created Date: 2000-12-20 Completed Date: 2001-02-22 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9205717 Medline TA: Biosci Biotechnol Biochem Country: Japan |
Other Details:
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Languages: eng Pagination: 2075-82 Citation Subset: IM |
Affiliation:
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Faculty of Agriculture, Niigata University, Ikarashi, Japan. hirotaka@agr.niigata-u.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Abscisic Acid
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biosynthesis* Aldehydes / chemistry, isolation & purification Culture Media Gas Chromatography-Mass Spectrometry / methods Glucose / metabolism Magnetic Resonance Spectroscopy Mitosporic Fungi / growth & development, metabolism* |
| Chemical | |
Reg. No./Substance:
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0/Aldehydes; 0/Culture Media; 21293-29-8/Abscisic Acid; 50-99-7/Glucose |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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