Cloning and functional analysis of a novel ascorbate peroxidase (APX) gene from Anthurium andraeanum
文献类型: 外文期刊
作者: Liu, Hui-chun 1 ; Tian, Dan-qing 2 ; Liu, Jian-xin 2 ; Ma, Guang-ying 2 ; Zou, Qing-cheng 2 ; Zhu, Zhu-jun 1 ;
作者机构: 1.Zhejiang Univ, Coll Agr & Biotechnol, Hangzhou 310058, Zhejiang, Peoples R China
2.Zhejiang Acad Agr Sci, Res & Dev Ctr Flower, Hangzhou 311202, Zhejiang, Peoples R China
3.Zhejiang A&F Univ, Sch Agr & Food Sci, Linan 311300, Peoples R China
关键词: AnAPX;Gene expression;Cold stress;Anthurium andraeanum
期刊名称:JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE B ( 影响因子:3.066; 五年影响因子:3.057 )
ISSN: 1673-1581
年卷期: 2013 年 14 卷 12 期
页码:
收录情况: SCI
摘要: An 888-bp full-length ascorbate peroxidase (APX) complementary DNA (cDNA) gene was cloned from Anthurium andraeanum, and designated as AnAPX. It contains a 110-bp 5'-noncoding region, a 28-bp 3'-noncoding region, and a 750-bp open reading frame (ORF). This protein is hydrophilic with an aliphatic index of 81.64 and its structure consisting of alpha-helixes, beta-turns, and random coils. The AnAPX protein showed 93%, 87%, 87%, 87%, and 86% similarities to the APX homologs from Zantedeschia aethiopica, Vitis pseudoreticulata, Gossypium hirsutum, Elaeis guineensis, and Zea mays, respectively. AnAPX gene transcript was measured non-significantly in roots, stems, leaves, spathes, and spadices by real-time polymerase chain reaction (RT-PCR) analysis. Interestingly, this gene expression was remarkably up-regulated in response to a cold stress under 6 A degrees C, implying that AnAPX might play an important role in A. andraeanum tolerance to cold stress. To confirm this function we overexpressed AnAPX in tobacco plants by transformation with an AnAPX expression construct driven by CaMV 35S promoter. The transformed tobacco seedlings under 4 A degrees C showed less electrolyte leakage (EL) and malondialdehyde (MDA) content than the control. The content of MDA was correlated with chilling tolerance in these transgenic plants. These results show that AnAPX can prevent the chilling challenged plant from cell membrane damage and ultimately enhance the plant cold tolerance.
- 相关文献
作者其他论文 更多>>
-
The complete plastome sequence of Heuchera micrantha Douglas ex Lindl. (Saxifragaceae), an ornamental plant
作者:Shi, Xiao-hua;Mao, Li-hui;Ma, Guang-ying;Jin, Liang
关键词:Heuchera micrantha; Saxifragaceae; plastome; phylogeny
-
The safety evaluation of chilled pork from online platform in China
作者:Liu, Chen-xing;Liu, Jian-xin;Ren, Da-xi;Xiao, Ying-ping;Hu, Dong-wen;Chen, Wei
关键词:Chilled pork; Online market; Microbiological-quality; Package
-
RNA interference-based gene silencing of phytoene synthase impairs growth, carotenoids, and plastid phenotype in Oncidium hybrid orchid
作者:Liu, Jian-Xin;Shen, Xiao-Lan;Shen, Fu-Quan;Chiou, Chung-Yi;Shen, Chin-Hui;Chen, Peng-Jen;Liu, Yao-Chung;Yeh, Kai-Wun;Jian, Chin-Der;Shen, Chin-Hui;Chiou, Chung-Yi;Chiou, Chung-Yi
关键词:Carotenoid;Oncidium orchid;Phytoene synthase;Plastid;RNA interference
-
De novo characterization of the Anthurium transcriptome and analysis of its digital gene expression under cold stress
作者:Tian, Dan-Qing;Pan, Xiao-Yun;Yu, Yong-Ming;Wang, Wei-Yong;Ge, Ya-Ying;Shen, Xiao-Lan;Shen, Fu-Quan;Zhang, Fei;Liu, Xiao-Jing
关键词:Anthurium;Cold;Transcriptome;Digital gene expression
-
Antioxidant properties and color parameters of herbal teas in China
作者:Jin, Liang;Tian, Dan-Qing;Yu, Yong-Ming;Ge, Ya-Ying;Ma, Guang-Ying;Wang, Wei-Yong;Li, Xiao-Bai;Fang, Xian-Ping;Xiao, Wen-Fei;Zhu, Hui-Qin;Lie, Mei
关键词:Herbal tea;Green tea (Camellia sinensis (L.) O. Ktze.);Ampelopsis grossedentata (Hand.-Mazz.) W.;T. Wang;Rosa chinensis Jacq;Antioxidant capacity;Total phenolic content;Color parameter