黑色素调节积减少通过RsWRKY26-RsHIPP26-RsASMT2模块在卜根
Xiaoli Zhang1, Mingjia Tang1, Wenjing Chu1
1National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Zhongshan Biological Breeding Laboratory, Nanjing 211800, PR China.
Journal of hazardous materials
|December 5, 2025
概括
黑素 (MT) 通过激活RsWRKY26-RsHIPP26-RsASMT2通路来减少中的 (Pb). 这一发现为更安全的卜和在育种计划中改善Pb吸收提供了策略.
科学领域:
- 植物分子生物学 植物分子生物学
- 环境毒理学环境毒理学
- 农业科学 农业科学
背景情况:
- 土壤 (Pb) 污染对蔬菜作物的安全和质量构成重大威胁.
- 众所周知,黑素 (MT) 降低了植物中的Pb积累,但卜中潜在的分子机制尚未完全理解.
研究的目的:
- 为了阐明卜中积累的 Melatonin 中介减少的分子机制.
- 确定关键的基因和调节途径,参与卜中的排毒.
主要方法:
- RNA测序 (RNA-seq) 在和美拉治疗下识别差异表达的长非编码RNA (lncRNA) 和蛋白质编码 (PC) 基因.
- 基因表达分析,包括卜,阿拉比多普西斯和酵母的过度表达研究.
- 酵母单杂交 (Y1H) 和DNA结合试验 (DLA) 来确认直接促进体结合和转录激活.
主要成果:
- 总共有11,265个lncRNA和4730个lncRNA-PC基因对被确定;许多基因对富含氧化还原酶活性.
- 黑色素治疗上调了RSASMT2,在过度表达时,增强了反应性氧物种的清除和减少了Pb积累.
- RsWRKY26转录因子直接激活了RSHIPP26和RSASMT2促进体,其过度表达导致了卜根中的Pb积累减少.
结论:
- 黑素介导的RsWRKY26-RsHIPP26-RsASMT2模块在协调减少卜中的积累方面发挥着至关重要的作用.
- 这项研究建立了一个有效的策略,用于生产低积累的卜,为食品安全做出贡献.
- 这些发现有助于在卜育种计划中改善吸收特征的基因.
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