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微生物组的变化,作为对棉花根球中含银纳米颗粒的补充剂的反应

Abhijeet Joshi¹, Radhika Joshi¹, Prushti Koradiya¹

¹Department of Microbiology, Atmiya University, Rajkot, Gujarat, India.

Journal of basic microbiology

|September 17, 2023

概括

含有果糖的银纳米粒子 (AgNPs) 显著增强了棉花植物的生长和有益的根球细菌. 这项研究证实了AgNP的存在.

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:

银纳米粒子 (AgNPs) 在农业中显示出潜力,但它们对植物生长和土壤微生物群落的影响需要详细调查.
了解AgNP,植物生理学和根球细菌之间的相互作用对于可持续的农业实践至关重要.
细胞外生物合成提供了一种生产AgNP的方法,其表征证实了它们的聚合形式.

研究的目的:

分析银纳米颗粒 (AgNPs) 补充剂对棉花植物生长和根球细菌群落的影响.
评估由AgNPs引起的植物生长促进特征和细菌社区转移.
确定最佳的AgNP-补充组合,以增强植物发育和土壤健康.

主要方法:

对细菌进行AgNP细胞外生物合成的查,然后使用UV-Vis光谱光度,FTIR,XRD,SEM和FESEM进行表征.
在10天后,将AgNP与各种补充剂应用于土壤,并评估对Gossypium hirsutum生长 (发芽,生物质,叶绿素) 的影响.
使用下一代测序 (Illumina-16S rDNA V3-V4区域) 分析细菌群体的变化,并评估促进细菌生长的特征 (酸盐溶解,IAA产生).

主要成果:

AgNP补充剂显著影响了细菌群落结构,补充剂类型解释了布雷-库蒂斯β多样性的95%-97%的差异.
在与特定补充剂相结合时,在1.4-2.8 mg/L的AgNP度下,种子发芽率提高了63%-100%.
与果糖相结合的AgNP显示出显著增强棉花生长和促进植物生长的树球细菌.

结论:

AgNP,特别是与果糖相结合时,代表了促进Gossypium hirsutum生长和改善植物生长特征的有效策略.
AgNPs可以自然刺激根球细菌的生长,为更健康的土壤微生物群做出贡献.
对AgNP补充剂在污染土壤中的应用进行进一步的研究可以阐明根球细菌之间的生态继承动态及其对植物生长的影响.

关键词:

具有补充剂的AgNP具有补充剂.戈西皮乌姆 (Gossypium) 的春天就是春天.微生物社区概况分析促进植物生长的特征

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