Phenotype, Physiology, and Gene Expression of Barley Seedlings in Response to Nano Zinc Oxide Stress

Dong, Mengyuan; Sun, Rong; Yang, Qianhui; Zhang, Lantian; Yong, Yangying; Fang, Yunxia; Zhang, Xian; Zhang, Xiaoqin; Xue, Dawei

doi:10.32604/phyton.2021.017465

Cited by 4 publications

(4 citation statements)

References 20 publications

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“…The specific surface area of spherical particles is inversely proportional to their diameter. And the specific surface area increases significantly with the decrease of particle diameter [ 10 ]. The relationship is shown in Table 1 .…”

Section: Methodsmentioning

confidence: 99%

Liquid-Phase Synthesis of Nano-Zinc Oxide and Its Photocatalytic Property

Wang¹

2022

International Journal of Analytical Chemistry

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To solve the problem of liquid-phase synthesis of nano-ZnO, a photocatalytic performance study was proposed. In this study, the microwave homogeneous precipitation method was used to add different types and amounts of surfactants. The synthesis of nano-zinc oxide was controlled by changing the reaction system conditions. The photocatalytic properties of nano-zinc oxide for degrading three water-soluble dyes were preliminarily studied and discussed. The results show that the photocatalytic performance of nano-ZnO is closely related to its size, morphology, specific surface area, and even crystallographic direction.

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Section: Methodsmentioning

confidence: 99%

Liquid-Phase Synthesis of Nano-Zinc Oxide and Its Photocatalytic Property

Wang¹

2022

International Journal of Analytical Chemistry

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“…Furthermore, Zn fertilizer treatment considerably increased the antioxidant potentials (ascorbic acid, reduced glutathione, total phenols, and total flavonoids) in wheat flag leaves and enhanced the expression of two antioxidant enzyme genes, four ascorbate-glutathione cycle genes, and two flavonoid biosynthesis-related genes (Sun et al, 2020). Dong et al (2021) also found that Zn fertilizer treatment could affect the expression of stressrelated resistance genes in different barley cultivars. In our study, DEG analysis and K-means clustering emphasized 95 upregulated phenylpropanoid biosynthesis-related genes, 65 terpenoid biosynthesis-related genes, and 25 flavonoid biosynthesis-related genes after Zn treatment.…”

Section: Integrated Analysis Of Metabolomics and Transcriptomicsmentioning

confidence: 82%

Metabolome and transcriptome analyses provide new insights into the mechanisms underlying the enhancement of medicinal component content in the roots of Acanthopanax senticosus (Rupr. et Maxim.) Harms through foliar application of zinc fertilizer

Sun,

Liu

et al. 2023

Front. Genet.

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Acanthopanax senticosus (Rupr. et Maxim.) Harms is a perennial shrub of the Acanthopanax genus in the Araliaceae family and has a high medicinal value. The application of zinc fertilizer can improve the yield and quality of medicinal materials. However, there are limited reports on approaches to increase the content of medicinal components in A. senticosus, hindering the improvement of its medicinal quality. In this study, A. senticosus was treated with 0.1% (LZn) and 0.4% (HZn) zinc sprayed on the leaf surface. The effects of zinc treatment on the medicinal components in the roots of A. senticosus were analyzed by comprehensive metabolomics and transcriptomics analyses. A total of 316 metabolites were detected, with a prevailing occurrence of terpenoids and phenylpropanoids. We identified metabolites related to the medicinal components that were upregulated after Zn treatment, including 43 terpenoids, 19 phenylpropanoids, eight phenols, and three flavonoids. Combining differential gene expression and K-means analysis, we found 95, 65, and 25 upregulated genes related to phenylpropanoid biosynthesis, terpenoid biosynthesis, and flavonoid biosynthesis, respectively. Under different concentrations of Zn treatment, the upregulated metabolite biosynthesis-related genes and differentially expressed transcription factors varied. Pearson correlation network analysis revealed significant correlations among terpenoids, phenylpropanoids, flavonoids biosynthetic genes, and several transcription factors (ERFs, WRKYs, bHLHs, NACs, and MYBs). This study lays the foundation for understanding the metabolic processes in response to varying levels of zinc foliar spray and provides a theoretical basis for enhancing the efficiency of zinc fertilizer utilization in A. senticosus.

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“…The toxic effects of Nano-ZnO on crop development and production are mostly due to disturbed photosynthesis, carbohydrate metabolism, and signal transduction [26,27]. A large body of studies reported that the reduction in chlorophyll contents and photosynthesis are the main symptoms of plant heavy metal (e.g., zinc) poisoning [4,21,28]. Consistent with this, the results here have shown that both An and SPAD values were notably depressed under Nano-ZnO stress (Figure 1), suggesting that the reduction in chlorophyll contents caused a decrease in photosynthesis and, hence, depressed plant performance.…”

Section: Discussionmentioning

confidence: 99%

“…The effect of nano-ZnO is not only concentration-dependent but also varies among different cultivars of the same crop [20]. A previous study investigated the expression of six stressrelated genes in three barley varieties (viz., ZJU3, Golden Promise, and L23) under nano-ZnO stress (300 mg L −1 ) and found that only one gene was upregulated; the other five were all downregulated [21]. Moreover, nano-ZnO treatment (150 mg kg −1 ) significantly reduced the chlorophyll b content of a soybean cultivar (cv, Huachun 2) but had no significant effect on the other soybean cultivar (cv, Huachun 6) [22].…”

Section: Introductionmentioning

confidence: 99%

Integrating Chlorophyll a Fluorescence and Enzymatic Profiling to Reveal the Wheat Responses to Nano-ZnO Stress

Li,

Liu,

Wang

et al. 2023

Plants

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It has been shown that increased concentrations of zinc oxide nanoparticles (nano-ZnO) in the soil are harmful to plant growth. However, the sensitivity of different wheat cultivars to nano-ZnO stress is still unclear. To detect the physiological response process of wheat varieties with different tolerance to nano-ZnO stress, four wheat cultivars (viz., cv. TS1, ZM18, JM22, and LM6) with different responses to nano-ZnO stress were selected, depending on previous nano-ZnO stress trials with 120 wheat cultivars in China. The results found that nano-ZnO exposure reduced chlorophyll concentrations and photosynthetic electron transport efficiency, along with the depressed carbohydrate metabolism enzyme activities, and limited plant growth. Meanwhile, the genotypic variation in photosynthetic carbon assimilation under nano-ZnO stress was found in wheat plants. Wheat cv. JM22 and LM6 possessed relatively lower Zn concentrations and higher leaf nitrogen per area, less reductions in their net photosynthetic rate, a maximum quantum yield of the PS II (Fv/Fm), electron transport flux per cross-section (ETo/CSm), trapped energy flux per cross-section (TRo/CSm), and total soluble sugar and sucrose concentrations under nano-ZnO stress, showing a better tolerance to nano-ZnO stress than wheat cv. TS1 and ZM18. In addition, the chlorophyll a fluorescence parameters Fv/Fm, ETo/CSm, and TRo/CSm could be used to rapidly screen wheat varieties resistant to nano-ZnO stress. The results here provide a new approach for solving the issues of crop yield decline in regions polluted by heavy metal nanoparticles and promoting the sustainable utilization of farmland with heavy metal pollution.

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Phenotype, Physiology, and Gene Expression of Barley Seedlings in Response to Nano Zinc Oxide Stress

Cited by 4 publications

References 20 publications

Liquid-Phase Synthesis of Nano-Zinc Oxide and Its Photocatalytic Property

Liquid-Phase Synthesis of Nano-Zinc Oxide and Its Photocatalytic Property

Metabolome and transcriptome analyses provide new insights into the mechanisms underlying the enhancement of medicinal component content in the roots of Acanthopanax senticosus (Rupr. et Maxim.) Harms through foliar application of zinc fertilizer

Integrating Chlorophyll a Fluorescence and Enzymatic Profiling to Reveal the Wheat Responses to Nano-ZnO Stress

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