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在不同土壤中种植的果树中积和耐受性的特点

Xiaolei Zhuang^1,2, Huixue Wan^1,2, Hongyu Wang¹

¹College of Horticulture, Shenyang Agricultural University, Shenyang, Liaoning, China.

Frontiers in plant science

|June 19, 2023

概括

土壤类型显著影响树中的 (Cd) 积累和毒性. 在有机物和粘土含量丰富的土壤中种植的果树对Cd毒性的耐受性更强.

科学领域:

环境科学环境科学
植物生物学植物生物学
毒理学毒理学毒理学

背景情况:

(Cd) 是一种有毒的,对于果树来说不是必不可少的元素.
了解不同土壤类型的果树中Cd的积累,转移和耐受性至关重要.

研究的目的:

调查不同类型的土壤对Cd生物可用性的影响.
评估Cd积累,生理反应和果树在Cd压力下的基因表达.
为了确定土壤特性和果树对Cd的耐受性之间的关系.

主要方法:

果苗 ("汉福") 在五个不同的果园土壤中种植.
植物在70天内接受了500μM的CdCl2.
分析了土壤特性,Cd度,植物生物质,叶绿素含量,氧化应激标志物和基因表达.

主要成果:

具有较高有机物质 (OM),粘土,泥和阴离子交换能力 (CEC) 的土壤显示Cd生物可用性降低.
这些土壤中的果树表现出较低的Cd积累和生物度因子.
这些树也显示了Cd诱导的毒性降低,包括对生物质,根结构和叶绿素的影响较小,以及较低的活性氧物种 (ROS) 和脂质过氧化,以及更高的抗氧化能力.
在不同类型的土壤中观察到与Cd吸收,运输和排毒相关的基因表达的显著差异.

结论:

土壤的特性,特别是OM,粘土,泥和CEC含量,显著影响Cd的生物可用性和果树的耐受性.
在含有较高OM和粘土的土壤中种植的果树对Cd毒性有较强的耐受性.
这些发现凸显了土壤特性的重要性,以减轻Cd污染对果种植的影响.

关键词:

果果果果是什么意思和是最重要的元素.基因表达的基因表达方式氧化应激是一种氧化应激.土壤的物理化学特性.

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