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Updated: Jan 10, 2026

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福尔西斯坦 (NATCA) 在促进种子发芽,根部发育和提高根部ASA-GSH循环效率下在玉米中联合铜-压力下发挥作用吗?
Ling Dong1, Meng Zhao1, Kangbo Hou1
1College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
International journal of molecular sciences
|November 27, 2025
概括
外源基 (NATCA) 的应用显著改善了在联合铜和压力下玉米种子发芽和根部发育. 纳特卡增强了甲酸盐-甲 (AsA-GSH) 循环,提高了抗氧化能力,减轻了重金属的毒性.
科学领域:
- 环境科学 环境科学
- 植物科学 植物科学
- 生物化学 生物化学
背景情况:
- 铜 (Cu) 和 (Cd) 是普遍存在的同时存在的污染物,在植物中引起联合压力.
- 亚酸盐-谷氨 (AsA-GSH) 循环对于重金属应力耐受性至关重要,但其在玉米中联合Cu-Cd应力下由NATCA进行的调节尚不清楚.
- 外源性基 (NATCA,3-乙thiazolidine-4-碳酸) 是一种具有潜在抗氧化特性的植物生长调节剂.
研究的目的:
- 调查NATCA在减轻玉米种子发芽和根部发育中的联合Cu-Cd压力的作用.
- 阐明NATCA在Cu-Cd压力下对AsA-GSH循环和活性氧物种 (ROS) 代谢的调节作用.
- 评估NATCA在联合重金属应力下对玉米生长,根特征和内源激素的影响.
主要方法:
- 两种玉米品种 (元15和龙6) 经过或没有NATCA处理,经过联合Cu/Cd应激.
- 实验包括种子发芽试验和水培培养,以评估对发芽,生长,根形态和生理参数的影响.
- 测量涉及ROS代谢,AsA-GSH循环活性,抗氧化酶活性,非酶性抗氧化剂含量和内源激素水平.
主要成果:
- 结合的Cu/Cd应激抑制了种子发芽和幼苗的生长,但NATCA显著扭转了这些影响,特别是在敏感的Longfuyu 6品种中.
- 纳特卡应用改善了根特征,增强了干物质的积累,并在压力条件下恢复了水代谢.
- NATCA提升了抗氧化酶活性,增加了非酶性抗氧化剂,加强了AsA-GSH循环介导的ROS清除,并保持了细胞内ROS平衡.
结论:
- 通过调节AsA-GSH循环和ROS代谢,NATCA在提高玉米对联合Cu-Cd压力的耐受性方面发挥着重要的监管作用.
- 纳特卡的应用是一个有希望的环保战略,用于改善被铜和污染的土壤中玉米的生产.
- 这项研究揭示了一种新的NATCA作用机制,用于减轻重金属诱导的植物氧化损伤.
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