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状菌根真菌对生物炭的调节 - Phragmites australis系统在缺乏P的环境中:Cd耐受性和迁移

Yongqiang You¹, Fang Ma², Weijie Zhang³

¹Research Institute of Environmental Engineering, Liaoning University, Shenyang 110036, PR China; School of Environment, Liaoning University, Shenyang 110036, PR China.

Journal of hazardous materials

|March 5, 2025

概括

生物炭和树状菌根菌在营养缺乏的土壤中增强了的植物补救作用. 这些处理方法改善了植物生长和金属积累,为污染现场的整治提供了新的策略.

科学领域:

环境科学环境科学
生物技术是生物技术.
土壤科学土壤科学

背景情况:

植物修复效率通常受到营养缺乏的限制.
生物炭 (BC) 和状菌根真菌 (AMF) 是植物修复的潜在增强剂.
(Cd) 污染对环境和健康构成风险.

研究的目的:

为了评估生物炭 (BC) 和BC与状菌根真菌 (BCA) 结合,以增强在缺乏下 (Cd) 的植物补救.
调查BC和BCA通过哪些机制来改善Phragmites australis中的Cd耐受性和积累.

主要方法:

使用Phragmites australis进行的植物修复实验是在不同的Cd度和缺条件下进行的.
治疗包括对照,生物炭 (BC) 应用和联合生物炭-状菌根真菌 (BCA) 应用.
分析植物生长,生物质,Cd积累,营养的可用性,素含量和抗氧化酶活性.

主要成果:

无论BC和BCA治疗都提高了Phragmites australis中的Cd耐药性和积累.
在高Cd条件下,BC增加了299%的植物生物质和378%的Cd积累,通过使Cd在树根球中被动并保留在茎中.
BCA治疗导致较高的Cd度 (3.18倍控制,2.46倍BC) 通过促进Cd转移到芽,同时还通过抗氧化酶减轻氧化应激.

结论:

生物炭和状菌根真菌是改善营养缺乏环境中的植物修复效率的有效策略.
BC主要通过减少金属负担和促进植物生长来增强植物修复,而BCA通过促进金属转移到芽来增强它.
这些发现为在具有挑战性的环境条件下扩大植物修复应用提供了新的方法.

关键词:

形形形形形形形形形形形这是一种重金属,重金属.缺乏营养素的营养素植物疗法 (Phytoremediation) 是一种植物疗法.植物的抗性植物的抗性

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