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2017年 第59卷 第2期 刊出日期：2017-02-16

2017年 第59卷 第2期
刊出日期：2017-02-16

  

COR27 and COR28 encode nighttime repressors integrating Arabidopsis circadian clock and cold response

Peng Wang, Xuan Cui, Chunsheng Zhao, Liyan Shi, Guowei Zhang, Fenglong Sun, Xiaofeng Cao, Li Yuan, Qiguang Xie, and Xiaodong Xu

2017, 59(2):  78-85.  doi:10.1111/jipb.12512

摘要 ( 1344 )  

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COR27 and COR28 repress the transcription of evening-phased clock genes and cold-responsive genes, which is responsible for maintaining circadian rhythm, plant freezing tolerance and flowering time control. CCA1 directly regulates COR27 and COR28 rhythmic expression in a temperature-dependent manner. This indicates the essential roles of COR27 and COR28 in coordinating circadian clock and cold-stress signaling networks.

WRKY transcription factors in plant responses to stresses

Jingjing Jiang, Shenghui Ma, Nenghui Ye, Ming Jiang, Jiashu Cao and Jianhua Zhang

2017, 59(2):  86-101.  doi:10.1111/jipb.12513

摘要 ( 3167 )  

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WRKY transcription factors are primary specific to plants. This review illuminated the function of WRKY transcription factors by analyzing its structural features and the mode of WRKY transcription factors involved in various stress response signals.

A novel tomato SUMO E3 ligase, SlSIZ1, confers drought tolerance in transgenic tobacco

Song Zhang, Kunyang Zhuang, Shiju Wang, Jinlian Lv, Na'na Ma, and Qingwei Meng

2017, 59(2):  102-117.  doi:10.1111/jipb.12514

摘要 ( 2197 )  

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The tomato gene SlSIZ1 was isolated and the SlSIZ1 protein was identified as a functional homolog of Arabidopsis SIZ1 with SUMO E3 ligase activity. Overexpression of SlSIZ1 can enhance the drought tolerance of transgenic tobacco by increasing the levels of SUMO conjugates and osmotic materials, and decreasing membrane damage from ROS.

The precise regulation of different COR genes by individual CBF transcription factors in Arabidopsis thaliana

Yihao Shi, Jiaying Huang, Tianshu Sun, Xuefei Wang, Chenqi Zhu, Yuxi Ai and Hongya Gu

2017, 59(2):  118-133.  doi:10.1111/jipb.12515

摘要 ( 1262 )  

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The CBF-dependent pathway is a plant-specific response to low temperature. We obtained three single mutants in Arabidopsis thaliana lacking CBF1~3 respectively using CRISPR/Cas9 technology. The RNA-seq data indicated that each CBF regulated a different set of COR genes, which formed a complicated network in response to cold stress.

GRAIN INCOMPLETE FILLING 2 regulates grain filling and starch synthesis during rice caryopsis development

Xiangjin Wei, Guiai Jiao, Haiyan Lin, Zhonghua Sheng, Gaoneng Shao, Lihong Xie, Shaoqing Tang, Qingguo Xu, and Peisong Hu

2017, 59(2):  134-153.  doi:10.1111/jipb.12510

摘要 ( 1252 )  

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A rice mutant, gif2, displays remarkable slower grain filling rate, obvious defects in endosperm compound starch granule formation and less grain weight. Our work suggests that GIF2 encodes a large subunit of ADP-glucose pyrophosphorylase and plays a key role in the regulation of grain filling and endosperm starch biosynthesis.