Journal
BIOLOGIA PLANTARUM
Volume 53, Issue 3, Pages 429-434Publisher
ACAD SCIENCES CZECH REPUBLIC, INST EXPERIMENTAL BOTANY
DOI: 10.1007/s10535-009-0082-3
Keywords
coleoptile; gene expression; Nicotiana tabacum; RT-PCR; transgenic tobacco; Triticum aestivum
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Funding
- National Natural Science Fundation of China [30671259]
- National Key technology RD program [2006BAD01A02-15]
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Expansins, found in the cell wall, have the unique ability to induce immediate cell wall extension. In this study, a beta-expansin gene (TaEXPB23) isolated from wheat (Triticum aestivum L.) coleoptiles was transformed to tobacco (Nicotiana tabacum) to investigate its role in plant growth and development. TaEXPB23 was preferentially expressed in wheat coleoptile and a close correlation between TaEXPB23 expression and coleoptile growth was observed. The over-expression of TaEXPB23 in tobacco also resulted in accelerating growth of leaves and internodes at earlier developmental stages, and it was involved in regulating plant development.
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