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Conference Paper: Molecular characterizatiom of a flavone synthase gene in sorghum
Title | Molecular characterizatiom of a flavone synthase gene in sorghum |
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Authors | |
Keywords | Biology Botany |
Issue Date | 2009 |
Publisher | American Society of Plant Biologists and the Canadian Society of Plant Physiologists. |
Citation | Plant Biology 2009: Joint Annual Meetings of the American Society of Plant Biologists and the Phycological Society of America, Honolulu, Hawaii, 18-22 July 2009, p. abstract no. P60026 How to Cite? |
Abstract | More than 9000 different flavonoids have been described in plants and flavones are one of the major classes of flavonoids. They exhibit diverse functions in plant physiology, biochemistry and ecology. In addition, they are known to have significant pharmacological properties including anti-oxidation, anti-anxiety and antiestrogenic effects as well as prevention of coronary heart diseases. In this study, three flavones, luteolin, apigenin and tricin, were identified in infected seedlings of different sorghum cultivars which are susceptible or resistant to Colletotrichum sublineolum, the causal agent of sorghum anthracnose. The levels of the different flavones were quantified by liquid chromatography-tandem mass spectrometry in multiple-reactions-monitoring mode. In bioassay experiments, luteolin showed higher inhibitory effects on spore germination of C. sublineolum than apigenin. A pathogen-inducible gene, SbFNSII, which was predicted to encode a P450 enzyme, was demonstrated to be involved in flavone synthesis in transgenic plants. Glycosides of luteolin and apigenin were identified in SbFNSII-overexpressing Arabidopsis lines. To our knowledge, SbFNSII represents the first example of a flavone synthase gene in monocots. |
Description | Poster Session: Secondary Metabolism & Natural Products |
Persistent Identifier | http://hdl.handle.net/10722/127825 |
DC Field | Value | Language |
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dc.contributor.author | Du, Y | en_HK |
dc.contributor.author | Lo, C | en_HK |
dc.date.accessioned | 2010-10-31T13:48:41Z | - |
dc.date.available | 2010-10-31T13:48:41Z | - |
dc.date.issued | 2009 | en_HK |
dc.identifier.citation | Plant Biology 2009: Joint Annual Meetings of the American Society of Plant Biologists and the Phycological Society of America, Honolulu, Hawaii, 18-22 July 2009, p. abstract no. P60026 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/127825 | - |
dc.description | Poster Session: Secondary Metabolism & Natural Products | - |
dc.description.abstract | More than 9000 different flavonoids have been described in plants and flavones are one of the major classes of flavonoids. They exhibit diverse functions in plant physiology, biochemistry and ecology. In addition, they are known to have significant pharmacological properties including anti-oxidation, anti-anxiety and antiestrogenic effects as well as prevention of coronary heart diseases. In this study, three flavones, luteolin, apigenin and tricin, were identified in infected seedlings of different sorghum cultivars which are susceptible or resistant to Colletotrichum sublineolum, the causal agent of sorghum anthracnose. The levels of the different flavones were quantified by liquid chromatography-tandem mass spectrometry in multiple-reactions-monitoring mode. In bioassay experiments, luteolin showed higher inhibitory effects on spore germination of C. sublineolum than apigenin. A pathogen-inducible gene, SbFNSII, which was predicted to encode a P450 enzyme, was demonstrated to be involved in flavone synthesis in transgenic plants. Glycosides of luteolin and apigenin were identified in SbFNSII-overexpressing Arabidopsis lines. To our knowledge, SbFNSII represents the first example of a flavone synthase gene in monocots. | - |
dc.language | eng | en_HK |
dc.publisher | American Society of Plant Biologists and the Canadian Society of Plant Physiologists. | - |
dc.relation.ispartof | Plant Biology 2009: Annual Meetings of the American Society of Plant Biologists and the Phycological Society of America | - |
dc.subject | Biology | - |
dc.subject | Botany | - |
dc.title | Molecular characterizatiom of a flavone synthase gene in sorghum | en_HK |
dc.type | Conference_Paper | en_HK |
dc.identifier.email | Lo, C: clivelo@hkucc.hku.hk | en_HK |
dc.identifier.hkuros | 170890 | en_HK |
dc.identifier.spage | abstract no. P60026 | - |
dc.identifier.epage | abstract no. P60026 | - |
dc.publisher.place | United States | - |