期刊
SCIENTIA HORTICULTURAE
卷 277, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scienta.2020.109817
关键词
Antioxidant enzyme; Chilling stress; Glutamic acid; Photosynthetic capacity; Solanum lycopersicum
类别
资金
- National Institute of Horticulture and Herbal Science, RDA, Korea [PJ0126662020]
- World Vegetable Center Korea Office budget (WKO) [10000379]
The research reveals that pretreatment with glutamic acid can enhance photosynthetic efficiency, increase antioxidant enzyme activity, and alter gene expression levels in tomato plants under low temperature stress, leading to alleviation of oxidative damage.
Low temperature stress negatively affects both the growth and development of plants through damage to photosynthetic components and the inhibition activity of antioxidant enzymes. Glutamic acid has recently been demonstrated to protect plants from various abiotic stresses such as cold, salt, osmosis and nitrogen deficiency. However, little molecular information explaining the effect of glutamic acid treatment on the growth of tomato plants under low temperature stress has been presented. Here, we report that glutamic acid (2.5 mM) applied to tomato plants prior to low temperature treatment caused increased photosynthetic efficiency together with enhanced content and/or activity of antioxidant enzymes, which could alleviate oxidative damage. Expression level of genes encoding antioxidant enzymes and C-repeat binding factors (CBFs), which are major transcription factors in cold-inducible gene expression was also altered in glutamic acid pretreated tomato plants compared to the control under low temperature stress conditions. Taken together, these results indicate that glutamic acid pretreatment is able to, at least partially, suppress the adverse effects of low temperature stress on the growth of tomato plants.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据