Source:http://linkedlifedata.com/resource/pubmed/id/20960221
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2011-1-14
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pubmed:abstractText |
Plant miRNA regulates multiple developmental and physiological processes, including drought responses. We found that the accumulation of Sly-miR169 in tomato (Solanum lycopersicum) was induced by drought stress. Consequently, Sly-miR169 targets, namely, three nuclear factor Y subunit genes (SlNF-YA1/2/3) and one multidrug resistance-associated protein gene (SlMRP1), were significantly down-regulated by drought stress. Constitutive over-expression of a miR169 family member, Sly-miR169c, in tomato plant can efficiently down-regulate the transcripts of the target genes. Compared with non-transgenic plants, transgenic plants over-expressing Sly-miR169c displayed reduced stomatal opening, decreased transpiration rate, lowered leaf water loss, and enhanced drought tolerance. Our study is the first to provide evidence that the Sly-miR169c negatively regulates stomatal movement in tomato drought responses.
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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:month |
Feb
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pubmed:issn |
1573-6776
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
33
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
403-9
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pubmed:meshHeading |
pubmed-meshheading:20960221-Acholeplasmataceae,
pubmed-meshheading:20960221-Droughts,
pubmed-meshheading:20960221-Gene Expression,
pubmed-meshheading:20960221-Lycopersicon esculentum,
pubmed-meshheading:20960221-MicroRNAs,
pubmed-meshheading:20960221-Plant Stomata,
pubmed-meshheading:20960221-Plants, Genetically Modified,
pubmed-meshheading:20960221-Stress, Physiological
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pubmed:year |
2011
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pubmed:articleTitle |
Over-expression of microRNA169 confers enhanced drought tolerance to tomato.
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pubmed:affiliation |
National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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