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Article: Accumulation of trans-piceid in sorghum seedlings infected with Colletotrichum sublineolum

TitleAccumulation of trans-piceid in sorghum seedlings infected with Colletotrichum sublineolum
Authors
KeywordsAnthracnose
Colletotrichum sublineolum
Poaceae
Precursor ion scan
Sorghum bicolor
Stilbene glycosides
Stilbene synthase
trans-Piceid
Issue Date2008
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/phytochem
Citation
Phytochemistry, 2008, v. 69 n. 3, p. 700-706 How to Cite?
AbstractSorghum SbSTS1, a pathogen inducible gene, was previously demonstrated to encode an enzyme with stilbene synthase activity. In this study, we attempt to identify the stilbene derivatives that accumulate in infected sorghum seedlings after inoculation with the anthracnose pathogen Colletotrichum sublineolum. Scanning for precursor ions that produced the common stilbene aglycones as diagnostic ions was performed in a triple quadrupole mass spectrometer. It was found that infected sorghum seedlings accumulated trans-piceid as the major stilbene metabolite together with an unknown resveratrol derivative. Time-course accumulation of trans-piceid was examined in two sorghum cultivars, DK18 and DK77, which are resistant and susceptible to C. sublineolum, respectively. In both cultivars, trans-piceid was not detected until 48 h after inoculation, consistent with the late induction of SbSTS1 reported previously in infected sorghum plants. The levels of trans-piceid detected in DK77 seedlings were approximately three times the levels detected in DK18 seedlings at 120 h after inoculation. In vitro assays demonstrated that trans-piceid did not exhibit significant toxicity on conidial germination and mycelial growth of C. sublineolum. Hence trans-piceid alone may not represent an important defense component against the anthracnose pathogen in sorghum seedlings. © 2007 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/70278
ISSN
2015 Impact Factor: 2.779
2015 SCImago Journal Rankings: 0.935
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYu, CKYen_HK
dc.contributor.authorShih, CHen_HK
dc.contributor.authorChu, IKen_HK
dc.contributor.authorLo, Cen_HK
dc.date.accessioned2010-09-06T06:21:23Z-
dc.date.available2010-09-06T06:21:23Z-
dc.date.issued2008en_HK
dc.identifier.citationPhytochemistry, 2008, v. 69 n. 3, p. 700-706en_HK
dc.identifier.issn0031-9422en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70278-
dc.description.abstractSorghum SbSTS1, a pathogen inducible gene, was previously demonstrated to encode an enzyme with stilbene synthase activity. In this study, we attempt to identify the stilbene derivatives that accumulate in infected sorghum seedlings after inoculation with the anthracnose pathogen Colletotrichum sublineolum. Scanning for precursor ions that produced the common stilbene aglycones as diagnostic ions was performed in a triple quadrupole mass spectrometer. It was found that infected sorghum seedlings accumulated trans-piceid as the major stilbene metabolite together with an unknown resveratrol derivative. Time-course accumulation of trans-piceid was examined in two sorghum cultivars, DK18 and DK77, which are resistant and susceptible to C. sublineolum, respectively. In both cultivars, trans-piceid was not detected until 48 h after inoculation, consistent with the late induction of SbSTS1 reported previously in infected sorghum plants. The levels of trans-piceid detected in DK77 seedlings were approximately three times the levels detected in DK18 seedlings at 120 h after inoculation. In vitro assays demonstrated that trans-piceid did not exhibit significant toxicity on conidial germination and mycelial growth of C. sublineolum. Hence trans-piceid alone may not represent an important defense component against the anthracnose pathogen in sorghum seedlings. © 2007 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/phytochemen_HK
dc.relation.ispartofPhytochemistryen_HK
dc.subjectAnthracnoseen_HK
dc.subjectColletotrichum sublineolumen_HK
dc.subjectPoaceaeen_HK
dc.subjectPrecursor ion scanen_HK
dc.subjectSorghum bicoloren_HK
dc.subjectStilbene glycosidesen_HK
dc.subjectStilbene synthaseen_HK
dc.subjecttrans-Piceiden_HK
dc.titleAccumulation of trans-piceid in sorghum seedlings infected with Colletotrichum sublineolumen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9422&volume=69&spage=700&epage=706&date=2007&atitle=Accumulation+of+trans-piceid+in+sorghum+seedlings+infected+with+Colletotrichum+sublineolumen_HK
dc.identifier.emailChu, IK: ivankchu@hku.hken_HK
dc.identifier.emailLo, C: clivelo@hkucc.hku.hken_HK
dc.identifier.authorityChu, IK=rp00683en_HK
dc.identifier.authorityLo, C=rp00751en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.phytochem.2007.09.012en_HK
dc.identifier.pmid17963800-
dc.identifier.scopuseid_2-s2.0-38349179758en_HK
dc.identifier.hkuros139139en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-38349179758&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume69en_HK
dc.identifier.issue3en_HK
dc.identifier.spage700en_HK
dc.identifier.epage706en_HK
dc.identifier.isiWOS:000254310400012-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridYu, CKY=8932539000en_HK
dc.identifier.scopusauthoridShih, CH=55233136000en_HK
dc.identifier.scopusauthoridChu, IK=7103327484en_HK
dc.identifier.scopusauthoridLo, C=15737175700en_HK

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