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Correlation analysis of cold-related gene expression with physiological and biochemical indicators under cold stress in oil palm

文献类型： 外文期刊

作者： Li, Jing 1 ; Yang, Yaodong 1 ; Iqbal, Amjad 1 ; Qadri, Rashad 1 ; Shi, Peng 1 ; Wang, Yong 1 ; Wu, Yi 1 ; Fan, Haikuo 1 ; Wu 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Coconut Res Inst, Hainan Key Lab Trop Oil Crops Biol, Wenchang, Hainan, Peoples R China

2.Chinese Acad Sci, Key Lab Plant Resource Conservat & Sustainable Ut, South China Bot Garden, Guangzhou, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2019 年 14 卷 11 期

页码：

收录情况： SCI

摘要： Oil palm (Elaeis guineensis Jacq.) is a representative tropical oil crop that is sensitive to low temperature. Oil palm can experience cold damage when exposed to low temperatures for a long period. During these unfavorable conditions, a series of gene induction/repression and physico-chemical changes occur in oil palm. To better understand the link between these events, we investigated the expression levels of various genes (including COR410, COR413, CBF1, CBF2, CBF3, ICE1-1, ICE1-2, ICE1-4, SIZ1-1, SIZ1-2, ZAT10, ZAT12) and the accumulation of osmolytes (proline, malondialdehyde and sucrose). Likewise, the activity of superoxide dismutase (SOD) in oil palm under cold stress (4 degrees C, 8 degrees C and 12 degrees C) was examined. The results showed a clear link among the expression of CBFs (especially CBF1 and CBF3) and the all genes examined under cold stress (12 degrees C). The expression of CBF1 and CBF2 also exhibited a positive link with the accumulation of sucrose and proline under cold stress in oil palm. At 4 degrees C, the proline content exhibited a very significant correlation with electrolyte leakage in oil palm. The results of this study provide necessary information regarding the mechanism of the response and adaption of oil palm to cold stress. Additionally, they offer clues for the selection or development of cold-tolerant cultivars from the available germplasms of oil palm.

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