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Hong TT, Hu S, Hu F, Ge WJ, Thakur K, Tang SM, Wei ZJ. Selenium Treatment Ameliorates the Adverse Effects Caused by Dynamin Gene Knockdown in Bombyx mori. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2024; 117:e22148. [PMID: 39250333 DOI: 10.1002/arch.22148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/16/2024] [Accepted: 08/22/2024] [Indexed: 09/11/2024]
Abstract
Our previous research reported the influence of 50 μM selenium (Se) on the cytosolization (endocytosis) pathway, which in turn stimulates the growth and development of Bombyx mori. Lately, dynamin is recognized as one of the key proteins in endocytosis. To explore the underlying mechanisms of Se impact, the dynamin gene was knocked down by injecting siRNAs (Dynamin-1, Dynamin-2, and Dynamin-3). This was followed by an analysis of the target gene and levels of silk protein genes, as well as growth and developmental indices, Se-enrichment capacity, degree of oxidative damage, and antioxidant capacity of B. mori. Our findings showed a considerable decrease in the relative expression of the dynamin gene in all tissues 24 h after the interference and a dramatic decrease in the silkworm body after 48 h. RNAi dynamin gene decreased the silkworm body weight, cocoon shell weight, and the ratio of cocoon. In the meantime, malondialdehyde level increased and glutathione level and superoxide dismutase/catalase activities decreased. 50 μM Se markedly ameliorated these growth and physiological deficits as well as decreases in dynamin gene expression. On the other hand, there were no significant effects on fertility (including produced eggs and laid eggs) between the interference and Se treatments. Additionally, the Se content in the B. mori increased after the dynamin gene interference. The dynamin gene was highly expressed in the silk gland and declined significantly after interference. Among the three siRNAs (Dynamin-1, Dynamin-2, and Dynamin-3), the dynamin-2 displayed the highest interference effects to target gene expression. Our results demonstrated that 50 μM Se was effective to prevent any adverse effects caused by dynamin knockdown in silkworms. This provides practical implications for B. mori breeding industry.
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Affiliation(s)
- Ting-Ting Hong
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, People's Republic of China
| | - Shuo Hu
- School of Biological Science and Engineering, North Minzu University, Yinchuan, People's Republic of China
| | - Fei Hu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, People's Republic of China
- School of Biological Science and Engineering, North Minzu University, Yinchuan, People's Republic of China
| | - Wen-Jie Ge
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, People's Republic of China
| | - Kiran Thakur
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, People's Republic of China
- School of Biological Science and Engineering, North Minzu University, Yinchuan, People's Republic of China
| | - Shun-Ming Tang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, People's Republic of China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, People's Republic of China
| | - Zhao-Jun Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, People's Republic of China
- School of Biological Science and Engineering, North Minzu University, Yinchuan, People's Republic of China
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Hong TT, Hu F, Ge WJ, Zhang R, Du J, Thakur K, Tang SM, Wei ZJ. Selenium Treatment Alleviates the Inhibition Caused by Nep-L Gene Knockdown in Silkworm (Bombyx mori). Biol Trace Elem Res 2024:10.1007/s12011-024-04248-8. [PMID: 38819778 DOI: 10.1007/s12011-024-04248-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 05/25/2024] [Indexed: 06/01/2024]
Abstract
Recent studies have emphasized the beneficial effects of 50 μM selenium (Se) on the growth and development of the silkworm, Bombyx mori; however, less is known about its underlying mechanism. To unravel the effect of 50 μM Se on the silkworms with neutral endopeptidase 24.11-like gene (NEP-L) knockdown, we injected small interfering RNA (siRNA) into the body cavity of silkworms. Phenotypic characteristics, mRNA expression of the Nep-L gene, and enriched Se content were evaluated in silkworms from each treatment group. After injecting Nep-L siRNA, the body weight, cocoon quality (cocoon weight, cocoon shell weight, and cocoon shell ratio), and egg production of silkworms were significantly reduced, without any significant effect on egg laying number. However, Se treatment could significantly alleviate the inhibition of body weight, and cocoon quality, without significant effects on egg laying number and production. In addition, the gene knockdown increased Se content in the B. mori. On the molecular level, the targeted Nep-L gene was inhibited significantly by siRNA interference, essentially with the strongest effect at 24 h after RNAi, followed by steady recovery. Among the three fragments, the siRNA of Nep-L-3 was the most effective in interfering with target gene expression. Nep-L gene showed the highest expression in Malpighian tubules (MTs). Both at the phenotypic and genotypic levels, our results show that Nep-L knockdown can exert a significant inhibitory effect on silkworms, and 50 μM Se can reverse the negative effect, which provides a practical prospect for strengthening the silkworm food industry.
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Affiliation(s)
- Ting-Ting Hong
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, PR China
| | - Fei Hu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, PR China.
- School of Biological Science and Engineering, North Minzu University, Yinchuan, 750021, People's Republic of China.
| | - Wen-Jie Ge
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, PR China
| | - Rui Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, PR China
| | - Juan Du
- School of Biological Science and Engineering, North Minzu University, Yinchuan, 750021, People's Republic of China
| | - Kiran Thakur
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, PR China
- School of Biological Science and Engineering, North Minzu University, Yinchuan, 750021, People's Republic of China
| | - Shun-Ming Tang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212003, PR China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, PR China
| | - Zhao-Jun Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, PR China.
- School of Biological Science and Engineering, North Minzu University, Yinchuan, 750021, People's Republic of China.
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He Z, Fang Y, Li DC, Chen DS, Wu F. Toxicity of procymidone to Bombyx mori based on physiological and transcriptomic analysis. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2022; 110:e21906. [PMID: 35398926 DOI: 10.1002/arch.21906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 03/22/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Procymidone is widely used in vegetables and fruits because of its broad-spectrum and high efficiency. However, it is unclear whether procymidone can affect silkworm (Bombyx mori) growth and cocoon production. This study investigated the effects of procymidone on the growth and cocoon production of silkworms. We analyzed the growth, and cocoon quality of fifth instar larvae fed on mulberry leaves saturated with different concentrations (2.5, 5, and 10 mg/ml) of procymidone and the control. Results showed that procymidone supplementation decreased the larval growth and cocoon quality compared to the control group, suggesting that procymidone had toxicity to silkworms. Additionally, after transcriptomic analysis, we identified 396 significantly differentially expressed genes (DEGs) in the presence of procymidone. Gene ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) illustrated that these DEGs were closely related to metabolism. Taken together, these results confirmed that procymidone could cause toxicity by affecting metabolism in silkworm larvae. We believed that these results could provide important materials for the effect of procymidone on silkworms and gave us some clues for pesticides used in the mulberry garden.
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Affiliation(s)
- Zhen He
- Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, China
| | - Yang Fang
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao, Shandong, China
| | - De-Chen Li
- Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, China
| | - Deng-Song Chen
- Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, China
| | - Fan Wu
- Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, China
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Tu J, Jin Y, Zhuo J, Cao X, Liu G, Du H, Liu L, Wang J, Xiao H. Exogenous GABA improves the antioxidant and anti-aging ability of silkworm (Bombyx mori). Food Chem 2022; 383:132400. [DOI: 10.1016/j.foodchem.2022.132400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/09/2022] [Accepted: 02/07/2022] [Indexed: 11/30/2022]
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Zhang R, Du J, Cao YY, Thakur K, Tang SM, Hu F, Wei ZJ. Hydrogen sulfide treatment retrieves the inhibition of growth and development characteristics in silkworm (Bombyx mori) via phosphoacetyl glucosamine mutase gene knock down. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2022; 110:e21873. [PMID: 35112397 DOI: 10.1002/arch.21873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/09/2022] [Accepted: 01/15/2022] [Indexed: 06/14/2023]
Abstract
Phosphoacetyl glucosamine mutase (PGM) is the key gene for glycolysis of important metabolic pathways in silkworm, and H2 S (7.5 μM) can promote the growth and development of silkworm. Herein, we used body cavity injection of small-interfering RNA (siRNA) to interfere with the PGM gene in H2 S-treated silkworms. After RNA interference (RNAi), we investigated the growth and development of the silkworm. H2 S treatment could significantly recover the inhibition of body weight, cocoon weight, cocoon shell weight, and cocoon shell ratio by knocking down PGM gene in silkworm, without significant effects on eggs laying and production, and then analyzed the mRNA expression of PGM gene. The interference of siRNA significantly decreased the expression of targeted PGM gene and was concentrated in 48 h followed by gradual recovery. Three interference fragments also showed different interference effects, and siRNA of PGM-3 exerted the highest interference effect to the target gene expression. Fat body had the highest mRNA expression of PGM gene, and the best interference effect was observed after siRNA injection. The results showed that the gene based on H2 S treatment may have an important impact on the growth and development of silkworm by affecting its metabolic pathway.
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Affiliation(s)
- Rui Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
| | - Juan Du
- School of Biological Science and Engineering, North Minzu University, Yinchuan, PR China
| | - Yu-Yao Cao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
| | - Kiran Thakur
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
- School of Biological Science and Engineering, North Minzu University, Yinchuan, PR China
| | - Shun-Ming Tang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, PR China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, PR China
| | - Fei Hu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
- School of Biological Science and Engineering, North Minzu University, Yinchuan, PR China
| | - Zhao-Jun Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
- School of Biological Science and Engineering, North Minzu University, Yinchuan, PR China
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Fang Y, Dai M, Ye W, Li F, Sun H, Wei J, Li B. Damaging effects of TiO 2 nanoparticles on the ovarian cells of Bombyx mori. Biol Trace Elem Res 2022; 200:1883-1891. [PMID: 34115284 DOI: 10.1007/s12011-021-02760-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/20/2021] [Indexed: 02/06/2023]
Abstract
As a new type of biologically compatible material, TiO2 NPs are widely used in the industry as additives, drug carriers, and components of skin care products. Due to their wide use, residual TiO2 NPs in the environment are a safety concern that has attracted extensive attention. In this study, the ovarian cell line BmN of the model organism Bombyx mori was used to reveal the damaging effects of TiO2 NPs exposure. The results demonstrated that TiO2 NPs exhibited a dose-dependent effect on the relative cell viability, with significant toxic effects being observed above 20 mg/L. Oxidative damage analysis showed that ROS accumulated significantly in BmN cells after exposure to TiO2 NPs (P ≤ 0.05) and induced DNA damage. Further analysis revealed that the transcriptional levels of key superoxide dismutase genes (SOD) decreased significantly, while the transcriptions of key genes of the MAPK/NF-κB signaling pathway (P38, MEK, ERK and REL) and the downstream inflammatory factor genes (IL6 and TNFSF5) were all significantly up-regulated (P ≤ 0.05). Overall, our results indicate that exposure to TiO2 NPs leads to reduced transcription of antioxidant genes, accumulation of peroxides, and inflammation. These findings provide valuable data for the safety evaluation of environmental residues of TiO2 NPs.
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Affiliation(s)
- Yilong Fang
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China
| | - Mingli Dai
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China
| | - Wentao Ye
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China
| | - Fanchi Li
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China
- Sericulture Institute of Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China
| | - Haina Sun
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China
- Sericulture Institute of Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China
| | - Jing Wei
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China
- Sericulture Institute of Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China
| | - Bing Li
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China.
- Sericulture Institute of Soochow University, Suzhou, Jiangsu, 215123, People's Republic of China.
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Zhou C, Li D, Shi X, Zhang J, An Q, Wu Y, Kang L, Li JQ, Pan C. Nanoselenium Enhanced Wheat Resistance to Aphids by Regulating Biosynthesis of DIMBOA and Volatile Components. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:14103-14114. [PMID: 34784717 DOI: 10.1021/acs.jafc.1c05617] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The mechanism of nanoselenium (nano-Se) improving the resistance induced by plant components to aphids is unclear. In this study, foliar sprayed nano-Se (5.0 mg/L) could significantly reduce the Sitobion avenae number (36%) compared with that in the control. Foliar application of nano-Se enhanced the antioxidant capacity by reducing malondialdehyde (MDA) and increasing GSH-Px, CAT, GSH, Pro, and VE concentrations in wheat seedlings. The phenylpropane pathway was activated by nano-Se biofortification, which increased apigenin and caffeic acid concentrations. The high-level expression of the related genes (TaBx1A, TaBx3A, TaBx4A, TaASMT2, and TaCOMT) induced the promotion of melatonin (88.6%) and 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA) (64.3%). Different ratios of the secondary metabolites to nano-Se were taken to examine the effects on resistance of wheat to S. avenae. The results revealed that the combination of nano-Se and melatonin could achieve the best overall performance by reducing the S. avenae number by 52.2%. The study suggests that the coordinated applications of nano-Se and melatonin could more effectively improve the wheat resistance to aphids via the promotion of volatile organic compound synthesis and modulation in phenylpropane and indole metabolism pathways.
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Affiliation(s)
- Chunran Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, P. R. China
| | - Dong Li
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, P. R. China
| | - Xinlei Shi
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, P. R. China
| | - Jingbang Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, P. R. China
| | - Quanshun An
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, P. R. China
| | - Yangliu Wu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, P. R. China
| | - Lu Kang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, P. R. China
| | - Jia-Qi Li
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, P. R. China
| | - Canping Pan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, China Yuanmingyuan West Road 2, Beijing 100193, P. R. China
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Xu Z, Qi C, Zhang M, Zhu J, Hu J, Feng K, Sun J, Wei P, Shen G, Zhang P, He L. Selenium mediated host plant-mite conflict: defense and adaptation. PEST MANAGEMENT SCIENCE 2021; 77:2981-2989. [PMID: 33624403 DOI: 10.1002/ps.6337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Selenium has shown effectiveness in protecting plants from herbivores. However, some insects have evolved adaptability to selenium. RESULTS Selenium accumulation in host plants protected them against spider mite feeding. Selenium showed toxic effects on spider mites by reducing growth and interfering with reproduction. After 40 generations on selenium-rich plants, a Tetranychus cinnabarinus strain (Tc-Se) developed adaptability to selenium, with an increased rate of population growth and enhanced ability for selenium metabolism. The high expression of two genes (GSTd07 and SPS1) in the selenium metabolism pathway might be involved in selenium metabolism in spider mites. After GSTd07 and SPS1 were silenced, the selenium adaptability decreased. Recombinant GSTd07 protein promoted the reaction between sodium selenite and glutathione (GSH) and increased the production of sodium selenite metabolites. The results indicated that GSTd07 was involved in the first step of selenium metabolism. CONCLUSION Plants can resist spider mite feeding by accumulating selenium. Spider mites subjected to long-term selenium exposure can adapt to selenium by increasing the expression of key genes involved in selenium metabolism. These results elucidate the mechanism of the interaction between mites and host plants mediated by selenium. This study of the interaction between selenium-mediated host plants and spider mites may lead to the development of new and less toxic methods for the prevention and control of spider mites. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Zhifeng Xu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - CuiCui Qi
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Mengyu Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Jiayan Zhu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Jia Hu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Kaiyang Feng
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Jingyu Sun
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Peng Wei
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Guangmao Shen
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Ping Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Lin He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
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He Z, Fang Y, Li DC, Chen DS, Wu F. Effect of Lactic Acid Supplementation on the Growth and Reproduction of Bombyx mori (Lepidopteria: Bombycidae). JOURNAL OF INSECT SCIENCE (ONLINE) 2021; 21:6188324. [PMID: 33764365 PMCID: PMC7993161 DOI: 10.1093/jisesa/ieab018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Lactic acid is widely used in the food, drugs, cosmetics, and other industries to maintain the microbial stability of low-pH products. However, it is unclear whether lactic acid can affect silkworm (Bombyx mori) growth and reproduction. This study investigated the effects of lactic acid on the growth and reproduction of the silkworm. We analyzed the growth, cocoon quality, and reproductive performance of fifth instar larvae fed on mulberry leaves saturated with different concentrations (0.01, 0.1, 1, and 10%) of lactic acid and the control. Results showed that 0.01, 0.1, and 1% lactic acid supplementation positively affects growth and female cocoon quality, with increased larval weight and female cocoon shell weight compared to the control group. In contrast, 10% lactic acid was toxic to the larvae and significantly decreased growth, leading to larval death. Our study provides a basic reference for the optimal amount of preservatives. In addition, this study can be a desirable intervention for sericulturists and can play an important role in getting high return from silkworm-rearing activities.
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Affiliation(s)
- Zhen He
- Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, P. R. China
| | - Yang Fang
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, P. R. China
| | - De-Chen Li
- Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, P. R. China
| | - Deng-Song Chen
- Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, P. R. China
| | - Fan Wu
- Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, P. R. China
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10
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Liu J, Wang S, Zhang Q, Li X, Xu S. Selenomethionine alleviates LPS-induced chicken myocardial inflammation by regulating the miR-128-3p-p38 MAPK axis and oxidative stress. Metallomics 2020; 12:54-64. [PMID: 31720660 DOI: 10.1039/c9mt00216b] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Selenium is closely related to the occurrence of heart disease, and an appropriate amount of selenium can alleviate inflammatory changes caused by various factors. Lipopolysaccharide (LPS), as a specific component of the cell wall of Gram-negative bacteria, is often used to construct various inflammatory models. In order to explore the effect of selenium on LPS-induced myocardial inflammation in chickens, we chose 4-month-old laying hens to be fed with a selenium-rich diet containing 0.5 g kg-1 Se, and injected LPS into the abdominal cavity at the age of 8 months to establish an inflammation model. We observed the myocardial tissue lesions by light microscopy, and detected miR-128-3p, p38MAPK, and NF-κB pathway-associated inflammatory factors and Th1/Th2 related factors by qRT-PCR and Western blot. The results showed that LPS stimulation inhibited miR-128-3p, which increased the expression of p38MAPK and NF-κB, while the expression of TNF-α, IL-1, PTGE, COX-2 and iNOS increased. Additionally, the expression of IL-4 and IL-6 increased and IFN-γ decreased, suggesting an imbalance of Th1/Th2. We also found that LPS treatment not only increased the content of H2O2 and MDA in the myocardium, but also increased the expression of HSP60, HSP70 and HSP90, while the activity of SOD, GPX and CAT and the content of GSH decreased. Interestingly, the addition of selenium can alleviate the changes in the above indicators. Finally, we concluded that selenium inhibits the occurrence of oxidative stress and ultimately alleviates myocardial inflammation induced by LPS through the miR-128-3p-p38MAPK-NF-κB pathway.
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Affiliation(s)
- Jing Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China.
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Cao YY, Peng LL, Jiang L, Thakur K, Hu F, Tang SM, Wei ZJ. Evaluation of the Metabolic Effects of Hydrogen Sulfide on the Development of Bombyx mori (Lepidoptera: Bombycidae), Using Liquid Chromatography-Mass Spectrometry-Based Metabolomics. JOURNAL OF INSECT SCIENCE (ONLINE) 2020; 20:5805372. [PMID: 32186739 PMCID: PMC7071785 DOI: 10.1093/jisesa/ieaa008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Indexed: 05/10/2023]
Abstract
Hydrogen sulfide (H2S) is a highly poisonous gas with an unpleasant smell of rotten eggs. Previous studies of H2S have primarily focused on its effects on mammalian nervous and respiratory systems. In this study, silkworm developmental parameters and changes in metabolites in response to H2S exposure were investigated using a hemolymph metabolomic approach, based on liquid chromatography-mass spectrometry (LC-MS). The developmental parameters, body weight, cocoon weight, cocoon shell weight, and cocoon shell ratio, were noticeably increased following H2S exposure, with the greatest effects observed at 7.5-μM H2S. Metabolites upregulated under H2S exposure (7.5 μM) were related to inflammation, and included (6Z, 9Z, 12Z)-octadecatrienoic acid, choline phosphate, and malic acid, while hexadecanoic acid was downregulated. Identified metabolites were involved in biological processes, including pyrimidine, purine, and fatty acid metabolism, which are likely to affect silk gland function. These results demonstrate that H2S is beneficial to silkworm development and alters metabolic pathways related to spinning function and inflammation. The present study provides new information regarding the potential functions of H2S in insects and metabolic pathways related to this phenomenon.
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Affiliation(s)
- Yu-Yao Cao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
| | - Li-Li Peng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
| | - Li Jiang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
| | - Kiran Thakur
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
| | - Fei Hu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
| | - Shun-Ming Tang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, PR China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, PR China
| | - Zhao-Jun Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, PR China
- Corresponding author, e-mail:
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