Foliar Spray of Cerium Oxide Nanoparticles (CeO2 NPs) Improves Lead (Pb) Resistance in Rice

被引：1

作者：

Zhou, Hang ^{[1
,2
]}

Liu, Junjie ^{[1
]}

Chen, Ziyang ^{[1
]}

An, Jing ^{[3
]}

Huo, Jingxin ^{[1
]}

Bu, Qing ^{[3
]}

Su, Tao ^{[3
]}

Zhao, Liming ^{[1
]}

Shen, Xuefeng ^{[1
]}

Xue, Yingbin ^{[1
]}

Rao, Gangshun ^{[1
]}

Feng, Naijie ^{[1
]}

Zheng, Dianfeng ^{[1
,4
]}

Zhang, Rui ^{[1
,4
]}

机构：

[1] Guangdong Ocean Univ, Coll Coastal Agr Sci, Zhanjiang 524088, Peoples R China

[2] Hainan Univ, Sch Trop Agr & Forestry, Haikou 570100, Peoples R China

[3] South China Agr Univ, Coll Agr, Guangzhou 510642, Peoples R China

[4] Natl Saline Alkali Tolerant Rice Technol Innovat C, South China Branch, Zhanjiang 524088, Peoples R China

来源：

ANTIOXIDANTS | 2025年 / 14卷 / 05期

关键词：

rice; CeO2; NPs; lead stress; transcriptome; metabolome; GETTING READY; STRESS; POLLUTION; PLANTS; ULTRASTRUCTURE; TOLERANCE; TOXICITY; GROWTH; GENE;

D O I：

10.3390/antiox14050552

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The widespread use of lead (Pb) has led to serious environmental and human health problems worldwide. The application of oxide nanoparticles (CeO2 NPs) in alleviating abiotic stress in plants has received extensive attention. In this study, 50 mg<middle dot>L-1 CeO2 NPs can improve Pb resistance and promote rice growth. Specifically, this study observed that CeO2 NPs increased the activity of antioxidant enzymes peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX), but the difference did not reach a significant level. At the same time, CeO2 NPs upregulated antioxidant metabolites alpha-linolenic acid, linoleic acid, ferulic acid, and kaempferol under Pb stress. In addition, CeO2 NPs upregulated multiple defense response-related genes, such as OsOPR1 and OsPR10a; RPR10a, and improved rice carbon flow and energy supply by upregulating sucrose and D-glucose. The results of this study provided technical support for alleviating Pb stress in rice.

引用

页数：16

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