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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-12-28
pubmed:abstractText
The expression of "classical" arabinogalactan protein genes in pollen tubes of Arabidopsis thaliana was characterized by RT-PCR. Transcripts of Agp6 and Agp11 were consistently found to be more abundant in pollen tubes and seem to be pollen-specific. Transcripts of other AGP genes were also detected in pollen but in lesser amounts and in a non-specific fashion. Two reference genes, ubiquitin-conjugating enzyme 9 and tubulin beta-4 chain, were evaluated and selected for gene expression studies in pollen. Expression characterization was complemented with immunolocalization studies using monoclonal antibodies specific to several glycosidic epitopes of AGPs. These studies were performed on in vitro germinated pollen tubes with the antibodies MAC207 and LM2. MAC207 produced labelling at the tip of the pollen tube, while LM2 produced a ring-like fluorescence around the emerging region of the tube, suggesting a role of AGPs during Arabidopsis pollen tube germination. To our knowledge, this is the first report establishing the presence of AGPs on Arabidopsis pollen tubes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0032-0935
pubmed:author
pubmed:issnType
Print
pubmed:volume
223
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
374-80
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Expression of arabinogalactan protein genes in pollen tubes of Arabidopsis thaliana.
pubmed:affiliation
Instituto de Biologia Molecular e Celular, Universidade do Porto, R. Campo Alegre 823 Porto, Portugal. lgpereir@ibmc.up.pt
pubmed:publicationType
Journal Article