Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2010-6-29
pubmed:abstractText
Two-dimensional paper chromatography in four solvent systems, high-sensitivity spray reagents, and UV absorption spectroscopy were used to separate and characterize flavonoids and isoflavonoids in roots and root nodules of 20-d-old Lotus pedunculatus Cav. Seedlings were grown either under sterile conditions or after inoculation with Fix(+) or Fix(-) strains of Rhizobium loti. Flavonoids rather than isoflavonoids predominated in all tissues. Flavonoid profiles in sterile and denodulated root tissues were remarkably similar, both qualitatively and quantitatively. At least 14 partially purified flavonoid aglycones and conjugates were found in root extracts; denodulated root tissues contained no compounds that were not also present in sterile roots. Fix(+) rhizobia were responsible for major postinfection shifts in plant flavonoid biosynthesis at the sites of nodule morphogenesis. Polymeric flavolans were absent from Fix(+) nodules but present in all root tissues and in Fix(-) nodules. Catechin was detected only in Fix(+) nodules.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-1536926, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-16348495, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-16666315, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-16667655, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-16668002, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-16668024, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-16668057, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-1840912, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-1859867, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-2132024, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-3738520, http://linkedlifedata.com/resource/pubmed/commentcorrection/16652981-7437010
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Sep
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
100
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
444-50
pubmed:dateRevised
2010-9-14
pubmed:year
1992
pubmed:articleTitle
Localized Changes in Flavonoid Biosynthesis in Roots of Lotus pedunculatus after Infection by Rhizobium loti.
pubmed:affiliation
Department of Food and Agricultural Microbiology, The Queen's University of Belfast, Newforge Lane, Belfast BT9 5PX, Northern Ireland, United Kingdom.
pubmed:publicationType
Journal Article