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Agronomy
Volume 14
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10.3390/agronomy14010078
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Article

Effects of Organic Selenium and Nanoselenium on Drought Stress of Pak Choi (Brassica chinensis var. pekinensis. cv. ‘Suzhouqing’) and Its Transcriptomic Analysis

by
Yanyan Wang
1,
Chulin Rao
2,
Liu Huang
1,
Junda Wu
1,
Peiheng Sun
1,
Jianyun Zhan
1,
Jianfu Wu
1,
Shiyu Liu
1,
Changming Zhou
1,
Longsong Hu
1,
Na Li
1,
Jiao Chen
1 and
Xiaowu He
1,*
1
School of Land Resource and Environment, Jiangxi Agricultural University, Nanchang 330045, China
2
Resource Protection and Development Center, Forestry Bureau, Nanfeng 344500, China
*
Author to whom correspondence should be addressed.
Agronomy 2024, 14(1), 78; https://doi.org/10.3390/agronomy14010078
Submission received: 13 November 2023 / Revised: 12 December 2023 / Accepted: 27 December 2023 / Published: 28 December 2023
(This article belongs to the Section Soil and Plant Nutrition)
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Abstract

In order to investigate physiological and molecular mechanisms underlying the impacts of organic selenium and nanoselenium on the drought stress of pak choi (Brassica chinensis var. pekinensis. cv. ‘Suzhouqing’), we sprayed 20 mL of 0, 5, 10, 20 mg L−1 concentrations of organic selenium (DCK, DO5, DO10, DO20) and nanoselenium (DN5, DN10, DN20). We measured photosynthetic pigment, antioxidant and nutritional quality, performed transcriptome sequencing of leaves using RNA-seq technology, obtained 297,176,114 clean sequences, and identified differential expressed genes. Organic selenium and nanoselenium increased the photosynthetic capacity by upregulating light-trapping pigment proteins, regulated reactive oxygen species homeostasis by activating the antioxidant system through the upregulation of glutathione S-transferase, and maintained water homeostasis through glutathione oxidase activity, thus enhancing weight. They contributed to the elevated total selenium content by increasing expression levels of ABC transporter, adenylate kinase, and cysteine desulphurase. Additionally, hub genes related to these metabolic pathways were identified using a weighted gene coexpression network analysis. The consistent results with the upregulated genes identified in the Kyoto Encyclopedia of Genes and Genomes pathway confirmed the accuracy and reliability of the transcriptome sequencing data. This study provides scientific reference to further in-depth research on the molecular effect of selenium on crops under drought stress conditions.
Keywords: physiological response; transcriptome; gene ontology; Kyoto Encyclopedia of Genes and Genomes; weighted gene coexpression network analysis physiological response; transcriptome; gene ontology; Kyoto Encyclopedia of Genes and Genomes; weighted gene coexpression network analysis

Share and Cite

MDPI and ACS Style

Wang, Y.; Rao, C.; Huang, L.; Wu, J.; Sun, P.; Zhan, J.; Wu, J.; Liu, S.; Zhou, C.; Hu, L.; et al. Effects of Organic Selenium and Nanoselenium on Drought Stress of Pak Choi (Brassica chinensis var. pekinensis. cv. ‘Suzhouqing’) and Its Transcriptomic Analysis. Agronomy 2024, 14, 78. https://doi.org/10.3390/agronomy14010078

AMA Style

Wang Y, Rao C, Huang L, Wu J, Sun P, Zhan J, Wu J, Liu S, Zhou C, Hu L, et al. Effects of Organic Selenium and Nanoselenium on Drought Stress of Pak Choi (Brassica chinensis var. pekinensis. cv. ‘Suzhouqing’) and Its Transcriptomic Analysis. Agronomy. 2024; 14(1):78. https://doi.org/10.3390/agronomy14010078

Chicago/Turabian Style

Wang, Yanyan, Chulin Rao, Liu Huang, Junda Wu, Peiheng Sun, Jianyun Zhan, Jianfu Wu, Shiyu Liu, Changming Zhou, Longsong Hu, and et al. 2024. "Effects of Organic Selenium and Nanoselenium on Drought Stress of Pak Choi (Brassica chinensis var. pekinensis. cv. ‘Suzhouqing’) and Its Transcriptomic Analysis" Agronomy 14, no. 1: 78. https://doi.org/10.3390/agronomy14010078

APA Style

Wang, Y., Rao, C., Huang, L., Wu, J., Sun, P., Zhan, J., Wu, J., Liu, S., Zhou, C., Hu, L., Li, N., Chen, J., & He, X. (2024). Effects of Organic Selenium and Nanoselenium on Drought Stress of Pak Choi (Brassica chinensis var. pekinensis. cv. ‘Suzhouqing’) and Its Transcriptomic Analysis. Agronomy, 14(1), 78. https://doi.org/10.3390/agronomy14010078

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