基底是重要的:离子银会改变水培系统中的生长,营养摄入量和根微生物群
LaShelle Spencer1, Blake Costine2, Tesia Irwin3
1Noetic Strategies, Inc., LASSO II, Kennedy Space Center, FL 32899, USA.
Microorganisms
|March 28, 2024
概括
作为生物杀菌剂的离子银 (Ag+) 阻碍了水培生菜的生长,并改变了根微生物群,特别是在没有基质的系统中. 石基板减轻了这些负面影响,显示了太空农业的潜力.
科学领域:
- 天体生物学和太空农业 农业
- 环境科学和微生物学
- 植物生理学和营养摄入量
背景情况:
- 离子银 (Ag+) 被探索为NASA航天器饮用水的生物杀菌剂.
- 这种水用于未来太空飞行系统中灌作物.
- 了解银对植物生长和微生物群落的影响对于太空农业至关重要.
研究的目的:
- 为了评估离子银生物制剂度对生菜生长的影响.
- 评估银的吸收量及其对生菜组织中基本元素的影响.
- 研究离子银对植物根区和水中的微生物群的影响.
主要方法:
- 培养了28天的菜在土基板和水培 (无基板) 系统中.
- 植物接受了三种度的离子银溶液 (31,125,500ppb) 的处理.
- 分析了植物生长,含银量,基本元素含量以及微生物群落的多样性/丰富性.
主要成果:
- 在31ppb Ag+时,水培生菜的生长减少,在125和500ppb Ag+时严重缩.
- 在水培菜叶中检测到银,与降低的Ca,K,P和S水平相关.
- 在Arcillite种植的生菜中没有生长缺陷或可检测的银积累;根微生物组没有受到影响.
结论:
- 离子银度超过31ppb严重影响水培作物生产,原因是植物缩.
- 石基板减轻了中的银毒性和积累,保持了植物生长和根微生物群的稳定性.
- 离子银作用于水培水微生物的选择性压力,改变社区结构并促进应激反应.
关键词:
这里是Arcillite的地板.基本元素 基本元素 基本元素水工培养是一种水工培养.菜 菜 菜 菜转基因组学是指转基因组学.银,银,银,银,银,银,银,银,银,银,银,银,银,银,银,银太空作物 太空作物基板是一种基板.更多相关视频
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