Expression Profiling of a Novel Calcium-Dependent Protein Kinase Gene, LeCPK2, from Tomato (Solanum lycopersicum) under Heat and Pathogen-Related Hormones
文献类型: 外文期刊
第一作者: Zhang, Zhi-Li
作者: Zhang, Zhi-Li;Chang, Wen-Jun;Li, Wei-Jing;Chang, Wen-Jun;Li, Wei-Jing;Su, Huo-Sheng
作者机构:
关键词: calcium-dependent protein kinase;in silico cloning;heat stress;phytohormone;tomato
期刊名称:BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY ( 影响因子:2.043; 五年影响因子:2.017 )
ISSN: 0916-8451
年卷期: 2009 年 73 卷 11 期
页码:
收录情况: SCI
摘要: A full-length cDNA LeCPK2 (GenBank GQ205414) from tomato (Solanum lycopersicum) encoding a calcium-dependent protein kinase (CDPK) was cloned by in silico cloning using NtCPK5 (AY971376) as a virtual probe. The deduced amino acid sequence of LeCPK2 contained the kinase, autoinhibitory, and calmodulin-like domains typical of CDPKs. Expression profiling indicated that LeCPK2 expressed predominantly in flowers and responded divergently to heat and cold stress, in which obvious mRNA accumulation was detected at 4 h under 42 degrees C stress, but no change in LeCPK2 mRNA levels was observed in 6 h at 4 degrees C. Mechanical wounding and phytohormones including ethylene, methyl jasmonate, and salicylic acid were also observed to arouse the expression of LeCPK2 in a similar pattern. mRNA accumulation was enhanced at 30 min and reached a maximum at 3 h, followed by a decrease to the normal level. All the results suggest that LeCPK2 is a novel versatile isoform of tomato CDPKs.
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