File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Reduction of Light-Induced Anthocyanin Accumulation in Inoculated Sorghum Mesocotyls: Implications for a Compensatory Role in the Defense Response

TitleReduction of Light-Induced Anthocyanin Accumulation in Inoculated Sorghum Mesocotyls: Implications for a Compensatory Role in the Defense Response
Authors
Issue Date1998
PublisherAmerican Society of Plant Biologists. The Journal's web site is located at http://www.plantphysiol.org
Citation
Plant Physiology, 1998, v. 116 n. 3, p. 979-989 How to Cite?
AbstractSorghum (Sorghum bicolor L. Moench) accumulates the anthocyanin cyanidin 3-dimalonyl glucoside in etiolated mesocotyls in response to light. Inoculation with the nonpathogenic fungus Cochliobolus heterostrophus drastically reduced the light-induced accumulation of anthocyanin by repressing the transcription of the anthocyanin biosynthesis genes encoding flavanone 3-hydroxylase, dihydroflavonol 4-reductase, and anthocyanidin synthase. In contrast to these repression effects, fungal inoculation resulted in the synthesis of the four known 3-deoxyanthocyanidin phytoalexins and a corresponding activation of genes encoding the key branch-point enzymes in the phenylpropanoid pathway, phenylalanine ammonialyase and chalcone synthase. In addition, a gene encoding the pathogenesis-related protein PR-10 was strongly induced in response to inoculation. The accumulation of phytoalexins leveled off by 48 h after inoculation and was accompanied by a more rapid increase in the rate of anthocyanin accumulation. The results suggest that the plant represses less essential metabolic activities such as anthocyanin synthesis as a means of compensating for the immediate biochemical and physiological needs for the defense response.
Persistent Identifierhttp://hdl.handle.net/10722/178628
ISSN
2015 Impact Factor: 6.28
2015 SCImago Journal Rankings: 3.642
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLo, SCCen_US
dc.contributor.authorNicholson, RLen_US
dc.date.accessioned2012-12-19T09:48:47Z-
dc.date.available2012-12-19T09:48:47Z-
dc.date.issued1998en_US
dc.identifier.citationPlant Physiology, 1998, v. 116 n. 3, p. 979-989en_US
dc.identifier.issn0032-0889en_US
dc.identifier.urihttp://hdl.handle.net/10722/178628-
dc.description.abstractSorghum (Sorghum bicolor L. Moench) accumulates the anthocyanin cyanidin 3-dimalonyl glucoside in etiolated mesocotyls in response to light. Inoculation with the nonpathogenic fungus Cochliobolus heterostrophus drastically reduced the light-induced accumulation of anthocyanin by repressing the transcription of the anthocyanin biosynthesis genes encoding flavanone 3-hydroxylase, dihydroflavonol 4-reductase, and anthocyanidin synthase. In contrast to these repression effects, fungal inoculation resulted in the synthesis of the four known 3-deoxyanthocyanidin phytoalexins and a corresponding activation of genes encoding the key branch-point enzymes in the phenylpropanoid pathway, phenylalanine ammonialyase and chalcone synthase. In addition, a gene encoding the pathogenesis-related protein PR-10 was strongly induced in response to inoculation. The accumulation of phytoalexins leveled off by 48 h after inoculation and was accompanied by a more rapid increase in the rate of anthocyanin accumulation. The results suggest that the plant represses less essential metabolic activities such as anthocyanin synthesis as a means of compensating for the immediate biochemical and physiological needs for the defense response.en_US
dc.languageengen_US
dc.publisherAmerican Society of Plant Biologists. The Journal's web site is located at http://www.plantphysiol.orgen_US
dc.relation.ispartofPlant Physiologyen_US
dc.subject.meshAcyltransferases - Geneticsen_US
dc.subject.meshAlcohol Oxidoreductases - Geneticsen_US
dc.subject.meshAnthocyanins - Analysis - Biosynthesis - Radiation Effectsen_US
dc.subject.meshBenzopyrans - Metabolismen_US
dc.subject.meshBlotting, Northernen_US
dc.subject.meshCereals - Metabolism - Microbiology - Radiation Effectsen_US
dc.subject.meshChromatography, High Pressure Liquiden_US
dc.subject.meshCotyledon - Genetics - Microbiology - Radiation Effectsen_US
dc.subject.meshGene Expression Regulation, Planten_US
dc.subject.meshGlucosides - Geneticsen_US
dc.subject.meshGlucosyltransferases - Geneticsen_US
dc.subject.meshLighten_US
dc.subject.meshMixed Function Oxygenases - Geneticsen_US
dc.subject.meshMolecular Sequence Dataen_US
dc.subject.meshPhenylalanine Ammonia-Lyase - Geneticsen_US
dc.subject.meshPlant Diseases - Genetics - Microbiologyen_US
dc.subject.meshPlant Extracts - Analysis - Biosynthesis - Geneticsen_US
dc.subject.meshPlant Proteins - Geneticsen_US
dc.subject.meshSesquiterpenesen_US
dc.subject.meshSpectrometry, Mass, Matrix-Assisted Laser Desorption-Ionizationen_US
dc.subject.meshTerpenesen_US
dc.titleReduction of Light-Induced Anthocyanin Accumulation in Inoculated Sorghum Mesocotyls: Implications for a Compensatory Role in the Defense Responseen_US
dc.typeArticleen_US
dc.identifier.emailLo, SCC: clivelo@hkucc.hku.hken_US
dc.identifier.authorityLo, SCC=rp00751en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1104/pp.116.3.979-
dc.identifier.pmid9501130-
dc.identifier.scopuseid_2-s2.0-0032015596en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032015596&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume116en_US
dc.identifier.issue3en_US
dc.identifier.spage979en_US
dc.identifier.epage989en_US
dc.identifier.isiWOS:000072628700011-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLo, SCC=15737175700en_US
dc.identifier.scopusauthoridNicholson, RL=7201624684en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats