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形花 (Glomus versiforme) 和与Sphagneticola calendulacea交叉种植会降低玉米中Cd的积累

Qi-Ying Zhu¹, Ren-Jie Li¹, Pei-Xuan Xu¹

¹Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization, Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, College of Life Sciences, South China Normal University, Guangzhou, P. R. China.

International journal of phytoremediation

|December 15, 2023

概括

间作物 (IN) 和状菌根真菌 (AMF) 结合通过降低Cd转运基因的调节,显著降低了玉米中的 (Cd). 这种协同作用增强了玉米和Sphagneticola calendulacea的植物生长和抗氧化能力.

科学领域:

农业科学农业科学
环境科学环境科学
植物科学植物科学

背景情况:

(Cd) 污染对食品安全和生态系统构成风险.
交叉作物 (IN) 和树枝状菌根菌 (AMF) 是减轻植物重金属吸收的潜在策略.
关于IN和AMF在交叉系统中对Cd积累和基因表达的联合影响的研究有限.

研究的目的:

研究杂交作物和树枝状菌 (AMF) 对玉米和Sphagneticola calendulacea中的 (Cd) 积累的协同效应.
在Cd污染条件下分析IN和AMF对玉米中Cd载体基因表达的影响.

主要方法:

在Cd污染的土壤下,使用玉米和Sphagneticola calendulacea进行了盆栽实验.
治疗包括单独种植,插入 (IN),AMF接种 (Glomus versiforme) 和IN + AMF联合治疗.
测量了生物质,光合作用,抗氧化能力,Cd含量和Cd转运基因 (Nramp1,HMA1,ABCC1,ABCC10) 的表达.

主要成果:

单独和组合的IN和AMF治疗显著改善了两种植物物种的生物质,光合作用和抗氧化能力.
间作物和AMF治疗降低了玉米中的Cd含量,在IN + AMF组合中观察到的最大降低.
相反,Sphagneticola calendulacea中的Cd含量在IN和AMF治疗后显著增加.
在IN和AMF治疗中,在玉米根和叶子中显著降低了Cd载体基因 (Nramp1,HMA1,ABCC1,ABCC10) 的表达,特别是在联合治疗中.

结论:

交叉作物和树枝状菌根真菌的联合应用在减少玉米中的积累方面表现出协同效应.
这种协同效应是由玉米中关键的转运基因的下调调节介导的.
交叉作物和AMF可以是植物修复和改善污染土壤中的作物安全的有效策略.

关键词:

树枝状的菌根真菌菌的真菌.这是一个CD传送基因.斯法格尼蒂科拉 (Sphagneticola calendulacea) 是一种红的植物.这是一种重金属,重金属.交叉作物交叉作物交叉作物玉米玉米玉米是一种

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