Linked Life Data

19649200

Source:http://linkedlifedata.com/resource/pubmed/id/19649200

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-8-3
pubmed:abstractText
For a long time it has been believed that lignification has an important role in host defense against pathogen invasion. Recently, by using an RNAi gene-silencing assay we showed that monolignol biosynthesis plays a critical role in cell wall apposition (CWA)-mediated defense against powdery mildew fungus penetration into diploid wheat. Silencing monolignol genes led to super-susceptibility of wheat leaf tissues to an appropriate pathogen, Blumeria graminis f. sp. tritici (Bgt), and compromised penetration resistance to a non-appropriate pathogen, B. graminis f. sp. hordei. Autofluorescence of CWA regions was reduced significantly at the fungal penetration sites in silenced cells. Our work indicates an important role for monolignol biosynthetic genes in effective CWA formation against pathogen penetration. In this addendum, we show that silencing of monolignol genes also compromised penetration resistant to Bgt in a resistant wheat line. In addition, we discuss possible insights into how lignin biosynthesis contributes to host defense.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Feb
pubmed:issn
1559-2324
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
158-9
pubmed:dateRevised
2010-9-27
pubmed:year
2009
pubmed:articleTitle
Role of lignification in plant defense.
pubmed:affiliation
Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
pubmed:publicationType
Journal Article, Comment