科研成果
  成果统计  
  获奖
  论文
  专著
  专利
  新品种
  软件著作权
  成果转化  
  成果
  案例
  动态
  · 最新动态
  · 人才招聘
  · 专题
  ·
  · 学会学报
  · 信息服务
  您现在的位置:首页 > 科研成果 > 论文
 
论文编号:
作者:
作者: Cherono S, Ntini C, Wassie M, Mollah MD, Belal MA, Ogutu C, Han YP*
作者所在部门:
作者所在部门:
通讯作者:
通讯作者: Han YP
刊物名称:
刊物名称: JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE
论文题目:
论文题目: Exogenous application of melatonin improves drought tolerance in coffee by regulating photosynthetic efficiency and oxidative damage
摘要:
摘要:

The protective role of melatonin in plants under abiotic stress has been reported, but little information is available on its mitigation effect on coffee (Coffea arabica) plants. The objective of this study was to determine the effect of exogenous application of 100 mM melatonin in coffee leaves under 3 months of drought stress treatment. Melatonin was found to alleviate the drought-induced damage in coffee through reducing the rate of chlorophyll degradation, electrolyte leakage, malonaldehyde content, and activating various antioxidant enzymes, such as catalase, guaiacol peroxidase, and superoxide dismutase. Melatonin application suppressed the expression of chlorophyll degradation gene PAO encoding pheophorbide a oxygenase, and upregulated the expression of photosynthetic gene RBCS2 encoding ribulose-1,5-bisphosphate oxygenase (Rubisco) protein, and a drought-related gene AREB encoding abscisic acid-responsive element binding protein. The photosynthetic efficiency of photosystem II under dark adaptation was also improved upon melatonin application in drought-stressed plants. Our results showed that both foliar spray and direct soil application of melatonin could improve drought tolerance by regulating photosynthetic efficiency and oxidative damage in C. arabica seedlings. This study provides insights in application of melatonin as a protective agent against drought stress in improvement of crop yields

年: 2020
卷:
期:
页: https://doi.org/10.21273/JASHS04964-20
收录类别:
影响因子:
论文出处:
论文出处:
外单位作者单位:
外单位作者单位:
备注:

关闭窗口