【摘 要】
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The bZIP transcription factor (TF) act as an important regulator in the abscisic acid (ABA) mediated abiotic stresses signaling pathways in plants.Here, we reported the cloning, characterization and t
【机 构】
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Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
【出 处】
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全国农业生物化学与分子生物学第十四届学术研讨会
论文部分内容阅读
The bZIP transcription factor (TF) act as an important regulator in the abscisic acid (ABA) mediated abiotic stresses signaling pathways in plants.Here, we reported the cloning, characterization and transformation of GhABF2, encoding for typical cotton bZIP TF.T5 generations were used for field experiment.Functional analysis showed that GhABF2 is a nuclear localized protein.Expression of GhABF2 was strongly induced by drought and ABA treatments but repressed by high salinity.GhABF2 overexpressing transgenic plants were significantly improved drought and salt stress tolerance both in Arabidopsis and cotton.Strikingly, manipulations of GhABF2 led to extended number of fruiting branches and number of bolls, which significantly improved the cotton fiber yield in drought condition and saline-alkali wetland.Taken together, these data demonstrated that GhABF2 plays an important role in drought and salt tolerance response and is an effective target for biotechnology of stress tolerance in cotton, thus illuminating a new strategy to improve cotton productivity under abiotic stress condition.
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