共查询到20条相似文献,搜索用时 93 毫秒
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Narusaka Y Narusaka M Seki M Umezawa T Ishida J Nakajima M Enju A Shinozaki K 《Plant molecular biology》2004,55(3):327-342
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Morcillo F Gallard A Pillot M Jouannic S Aberlenc-Bertossi F Collin M Verdeil JL Tregear JW 《Planta》2007,226(6):1353-1362
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B. R. Kuluev A. B. Knyazev Ya. P. Lebedev A. V. Chemeris 《Russian Journal of Plant Physiology》2012,59(1):97-104
Expansins are non-enzymatic plant proteins breaking hydrogen bonds between cellulose microfibrils and hemicellulose polymer
matrix. Each plant has many expansin genes, whose protein products participate in the regulation of plant growth and development
mainly by regulating cell expansion. To analyze the effects of elevated expansin expression on the plant organ sizes, we cloned
the AtEXPA10 gene from Arabidopsis thaliana and PnEXPA1 gene from Populus nigra. Transgenic tobacco plants expressing the target genes were obtained. The obtained transgenic tobacco plants were shown to
have significantly larger leaves and longer stems compared to control plants. The flowers were quite insignificantly larger,
but at the same time transgenic plants had more flowers. The microscopic studies showed that the organs of AtEXPA10-carrying plants were larger mainly due to stimulated cell proliferation, whereas the overexpression of the PnEXPA1 gene activated cell expansion. 相似文献
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Limin Wu Aliaa EL-mezawy Melissa Duong Saleh Shah 《In vitro cellular & developmental biology. Plant》2010,46(4):338-347
Canola is one of the most important cash crops in Canada, and a national project named “Designing Oilseeds for Tomorrow’s
Market” was undertaken to improve seed meal quality of this strategically important crop. As a part of this project, our group
is focusing on identifying seed coat-specific promoters for canola (Brassica napus). These promoters will be used to genetically modify canola seed coat to reduce or eliminate anti-nutritional components
from the meal. The Arabidopsis thaliana BAN promoter (AtBANpro) and δVPE promoter (AtδVPEpro) were isolated and fused to GUS reporter gene to generate transgenic
canola plants. These plants were analyzed by GUS staining and microtome sectioning which showed that both promoters are seed
coat-specific in canola: AtBANpro in inner seed coat layer and AtδVPEpro in outer seed coat layer. Therefore, the two Arabidopsis promoters can be used to modify genes in seed coat of canola for further improving its seed qualities. 相似文献
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