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2015年 第57卷 第6期 刊出日期：2015-06-01

2015年 第57卷 第6期
刊出日期：2015-06-01

  

Active role of small peptides in Arabidopsis reproduction: Expression evidence

Qingpei Huang, Thomas Dresselhaus, Hongya Gu, and Li-Jia Qu

2015, 57(6):  518-521.  doi:10.1111/jipb.12356

摘要 ( 2333 )  

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Large number of small peptides exhibit gametophyte-specific and dynamic expression profiles along the ovule developmental axis, implicating their vital function in plant reproduction.

Molecular cloning and functional analysis of the FLOWERING LOCUS T (FT) homolog GhFT1 from Gossypium hirsutum

Danli Guo, Chao Li, Rui Dong, Xiaobo Li, Xiangwen Xiao, and Xianzhong Huang

2015, 57(6):  522-533.  doi:10.1111/jipb.12316

摘要 ( 2508 )  

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A florigen homologous gene GhFT1 in cotton was characterized, which shares the similar expression pattern with other FT genes but also is expressed in fiber. GhFT1 protein locates both in the cytoplasm and the nucleus. GhFT1 promotes flowering in transgenic arabidopsis and can be used to promote early maturation in cotton breeding.

Improved oxidative tolerance in suspension-cultured cells of C₄-pepctransgenic rice by H₂O₂ and Ca²⁺ under PEG-6000

Baoyun Qian, Xia Li, Xiaolong Liu, and Man Wang

2015, 57(6):  534-549.  doi:10.1111/jipb.12283

摘要 ( 2354 )  

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Research on transgenic rice lines expressing high levels of C₄-pepc (hereafter, PC lines) showed that PC could improve oxidative tolerance via the down-regulation of H₂O₂ and the entry of extracellular Ca²⁺ into cells across the plasma membrane for regulation of PEPC activity and C₄-pepc expression.

Nitric oxide alleviates aluminum-induced oxidative damage through regulating the ascorbate-glutathione cycle in roots of wheat

Chengliang Sun, Lijuan Liu, Yan Yu, Wenjing Liu, Lingli Lu, Chongwei Jin, and Xianyong Lin

2015, 57(6):  550-561.  doi:10.1111/jipb.12298

摘要 ( 2151 )  

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Nitric oxide apparently alleviated Al-induced root growth inhibition, probably by preventing oxidative damage, directly scavenging ROS, elevating the activity of antioxidant enzymes in the AsA-GSH cycle, and maintaining high levels of AsA and GSH.

Mutation of Oryza sativa CORONATINE INSENSITIVE 1b (OsCOI1b) delays leaf senescence

Sang-Hwa Lee, Yasuhito Sakuraba, Taeyoung Lee, Kyu-Won Kim, Gynheung An, Han Yong Lee, and Nam-Chon Paek

2015, 57(6):  562-576.  doi:10.1111/jipb.12276

摘要 ( 2895 )  

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Mutant of OsCOI1b, a jasmonate receptor and one of the three COI homologs in rice, delays leaf senescence during both dark-induced and natural senescence, indicating that OsCOI1b is involved in the promotion of leaf senescence.

Infection of Ustilaginoidea virens intercepts rice seed formation but activates grain-filling-related genes

Jing Fan, Xiao-Yi Guo, Liang Li, Fu Huang, Wen-Xian Sun, Yan Li, Yan-Yan Huang, Yong-Ju Xu, Jun Shi, Yang Lei, 1, Ai-Ping Zheng, and Wen-Ming Wang

2015, 57(6):  577-590.  doi:10.1111/jipb.12299

摘要 ( 3166 )  

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Rice false smut disease is featured by conversion of a rice grain into a ball-shaped fungal mass through that the pathogen intercepts flower fertilization and seed setting. Transcriptome analysis reveals the activation of grain-filling network upon pathogen infection, implying that false smut pathogen hijacks host nutrient reservoir for its colonization.

Selective silencing of 2Cys and type-IIB Peroxiredoxins discloses their roles in cell redox state and stress signaling

Patrícia Vidigal, Ana Montserrat Martin-Hernandez, Cèlia Guiu-Aragonés, Sara Amâncio, and Luísa Carvalho

2015, 57(6):  591-601.  doi:10.1111/jipb.12296

摘要 ( 2382 )  

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Through the silencing of two different peroxiredoxin, it was possible to learn that 2Cys-Peroxiredoxin influences the biosynthesis of the stress hormone abscisic acid through the regeneration of ascorbate. Ascorbate regeneration is also affected by Peroxiredoxin-IIB through the xanthophyll cycle, another adaptive mechanism triggered in stressful conditions.