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米 (Oryza sativa L.):对米生长和发展的影响

Jiawei Huang¹, Ming Huang¹, ZiYing Guan²

¹Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, China.

|November 13, 2024

概括

化纳米管 (HNT) 对大米 (Oryza sativa L.) 的生长有双重影响. 低度的HNT促进了苗木的发展,而高度会导致毒性,尽管大米在移植到土壤时会恢复.

科学领域:

农业科学农业科学
环境科学环境科学
纳米技术纳米技术

背景情况:

化纳米管 (HNT) 越来越多地被用于农业应用.
了解像HNTs这样的纳米材料的植物毒性对于安全的农业使用至关重要.
米 (Oryza sativa L.) 是一种全球重要的作物,需要对HNTs的影响进行评估.

研究的目的:

评估米 (Oryza sativa L.) 上的化纳米管 (HNT) 在各种生长阶段的植物毒性.
调查HNT对大米发芽,幼苗发育和繁殖阶段的剂量依赖影响.
为在农业环境中安全应用HNT提供基础数据.

主要方法:

米种子和幼苗被暴露在不同度的HNT分散 (0.1到100毫克毫升-1).
测量了生长参数,生物量,氧化应激指标 (H2O2,MDA) 和叶绿素含量.
用HNTs治疗的苗木被移植到土壤中,以评估恢复和繁殖成功.

主要成果:

HNTs没有影响大米种子的发芽.
低HNT度 (0.1毫克ML-1) 显著促进了苗生物质,根,茎和叶子的发育.
高度的HNT (100 mg mL-1) 抑制了生长,增加了氧化损伤,并降低了叶绿素含量,但在土壤移植后,大米恢复并产生了尖.

结论:

素酸纳米管在米苗中表现出剂量依赖的植物毒性.
虽然高度的HNT会引发压力,但大米表现出弹性和恢复潜力.
这项研究提供了对HNT对大米的影响的关键见解,为其潜在的农业应用提供了信息.

关键词:

在Halloysite中使用Halloysite.氧化作用的损伤.植物毒性植物毒性大米大米大米大米大米

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