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- Title
褪黑素预处理对桃耐涝性的调控效应.
- Authors
古咸彬; 陆玲鸿; 宋根华; 肖金平; 张慧琴
- Abstract
In order to explore the regulation effect of melatonin on waterlogging tolerance in peach, peach seedlings were pretreated with 200 μmol·L-1 melatonin and then subjected to waterlogging treatment. Physiological indexes and transcriptome sequencing were used to study the effects of melatonin on peach under waterlogging. The results showed that exogenous melatonin slowed chlorophyll degradation and protected cell membranes and roots of peach seedling. Melatonin activated microtubule morphogenesis, REDOX enzyme activity and protein-binding related genes, thus consolidated root skeleton, activated antioxidant enzyme activity and improved stress tolerance. Waterlogging induced abundant expression of ERF transcription factor family members to regulate stress response. All the VII group members of ERF family were significant differential expressed in the waterlogging response group, which could be the key member in hypoxia stress response reaction. In addition, ERF transcription factor activated the activity of key enzymes genes as ADH, ALD, GAPD in glycolysis pathway through HRPE or GCC-box cis-acting elements, which provided energy for plants under hypoxic stress. Prupe.8 G264900, a member of ERF Ⅶ, might be a key gene in response to waterlogging in peach.
- Subjects
WATERLOGGING (Soils); CELL membranes; TRANSCRIPTION factors; PEACH; MELATONIN; MICROTUBULES; FORKHEAD transcription factors
- Publication
Acta Agriculturae Zhejiangensis, 2022, Vol 34, Issue 9, p1911
- ISSN
1004-1524
- Publication type
Article
- DOI
10.3969/j.issn.1004-1524.2022.09.10