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植物基中介培养物依赖Cd Lactuca sativa的积累和Cd污染安全培养物查的影响

Chun-Tao He^1,2, Xue-Song Wang³, Xia-Xin Hu¹

¹School of Agriculture, State Key Laboratory for Biocontrol, Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China.

Journal of agricultural and food chemistry

|December 20, 2023

概括

开发无污染的品种 (Cd-PSC) 是减少生菜中的的关键. 高积累品种表现出较高的根系植物素,影响从根到芽的运输.

科学领域:

环境科学环境科学
植物生物学植物生物学
生物化学生物化学

背景情况:

叶菜中的 (Cd) 污染构成了严重的食品安全问题.
在*Lactuca sativa* (生菜) 中存在Cd积累的种类特定差异.
防污染农作物 (Cd-PSC) 战略旨在减轻农作物中Cd的吸收.

研究的目的:

研究Lactuca sativa*中Cd积累的机制.
为了比较低Cd积累品种 (C16) 和高Cd积累品种 (C13) 中的Cd积累和转移.
阐明植物胆固醇在Cd吸收和运输中的作用.

主要方法:

在压力下查23种*Lactuca sativa*品种的Cd度.
在选定的品种 (C16和C13) 中确定Cd度,亚细胞分布和植物蛋白样本.
分析植物基生物合成相关的根基因表达.

主要成果:

在*L. sativa*品种中观察到芽Cd度 (0.1242.155 mg·kg-1) 的显著变化.
在C13品种中高Cd积累与热稳定分数中的Cd-植物胺复合物有关.
在Cd压力下,在C13中发现了根基基酸度升高和改变的谷氨S转移酶表达.

结论:

在高Cd积累的L. sativa*品种中,基酸的升高可能会增强Cd从根到芽的转移.
在Cd积累的培养物依赖的差异受到植物胺代谢和基因表达的影响.
了解这些机制可以为开发CD安全的菜品种提供信息.

关键词:

这种植物叫做Lactuca sativa.和是最重要的元素.葡萄糖氨酸是什么葡萄糖氨酸谷氨酸S转移酶是一种S转移酶.植物切拉丁是一种植物切拉丁.亚细胞分布亚细胞分布

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