Source:http://linkedlifedata.com/resource/pubmed/id/17150990
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
2007-2-19
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pubmed:abstractText |
Plants resistant to aluminium (Al) stress were isolated from Arabidopsis thaliana enhancer-tagged mutant lines. Compared with the parental Col-7 control line, one of the resistant candidates, #355-2, showed a higher expression of the F9E10.5 gene (At1g75100) on chromosome 1, a lower Al content in whole roots, and a shorter root hair length (approximately 30%). Both Al influx and associated oxidative stress occurred in root hairs, as well as in root tips of Col-7; however, they were seen only in root tips of #355-2. Transgenic plants overexpressing the F9E10.5 gene showed a slightly higher Al resistance than their parental control line (Ler). The F9E10.5 gene encodes an auxilin-like protein related to the clathrin-uncoating process in endocytosis. Microscopic observation indicated that both Al ion influx and endocytosis activity were lower in root hair cells of the #355-2 line than in those of Col-7. These results suggested that overexpression of this auxilin-like protein inhibits endocytosis in root hair cells by a disturbance of the transport system as in animal cells shown previously. It was also suggested that a part of the Al influx occurred via endocytosis in root hair cells in Arabidopsis. The Al resistance in the #355-2 line may therefore be due to a lower Al uptake via endocytosis in the root hair region.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0022-0957
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
58
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
497-506
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pubmed:meshHeading |
pubmed-meshheading:17150990-Aluminum,
pubmed-meshheading:17150990-Arabidopsis,
pubmed-meshheading:17150990-Arabidopsis Proteins,
pubmed-meshheading:17150990-Auxilins,
pubmed-meshheading:17150990-Endocytosis,
pubmed-meshheading:17150990-Ion Transport,
pubmed-meshheading:17150990-Plant Roots,
pubmed-meshheading:17150990-Plants, Genetically Modified
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pubmed:year |
2007
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pubmed:articleTitle |
Overexpression of an auxilin-like gene (F9E10.5) can suppress Al uptake in roots of Arabidopsis.
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pubmed:affiliation |
Research Institute for Bioresources, Okayama University, 2020-1, Chuou, Kurashiki, Okayama, 710-0046 Japan. bezaki@rib.okayama-u.ac.jp
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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