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    • 9. 发明公开
    • TRANSGENIC PLANTS WITH ENHANCED GROWTH CHARACTERISTICS
    • 转基因PFLANZEN MIT ERWEITERTEN WACHSTUMSMERKMALEN
    • EP2334166A4
    • 2012-01-25
    • EP09810728
    • 2009-08-31
    • LOS ALAMOS NAT SECURITY LLCUNIV MAINE SYS BOARD TRUSTEES
    • UNKEFER PAT JANDERSON PENELOPE SKNIGHT THOMAS J
    • A01H5/00C12N9/10C12N15/82
    • C12N9/1096C12N15/8261Y02A40/146
    • The invention relates to transgenic plants exhibiting dramatically enhanced growth rates, greater seed and fruit/pod yields, earlier and more productive flowering, more efficient nitrogen utilization, increased tolerance to high salt conditions, and increased biomass yields. In one embodiment, transgenic plants engineered to over-express both glutamine phenylpyruvate transaminase (GPT) and glutamine synthetase (GS) are provided. The GPT+GS double-transgenic plants of the invention consistently exhibit enhanced growth characteristics, with T0 generation lines showing an increase in biomass over wild type counterparts of between 50% and 300%. Generations that result from sexual crosses and/or selfing typically perform even better with some of the double-transgenic plants achieving an astounding four-fold biomass increase over wild type plants.
    • 本发明涉及显着增强的生长速率,更大的种子和果实/荚果产量,更早和更有效的开花,更有效的氮利用,增加的对高盐条件的耐受性和增加的生物量产量的转基因植物。 在一个实施方案中,提供了改造为过表达谷氨酰胺苯丙酮酸转氨酶(GPT)和谷氨酰胺合成酶(GS)的转基因植物。 本发明的GPT + GS双转基因植物始终表现出增强的生长特性,其中T0代生长线显示生物量比野生型对应物的增加在50%至300%之间。 由性交和/或自交产生的一代通常表现得更好,一些双转基因植物比野生型植物实现惊人的四倍生物量增加。