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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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Chu J, Wang S, Yu J, Gao Y, Tang Z, Yang Q. Effects of Pyrolysis Temperature and Acid-Base Pre-Treatment on the Synthesis of Biochar-Based Slow-Release Selenium Fertilizer and Its Release in Soil. MATERIALS (BASEL, SWITZERLAND) 2024; 17:879. [PMID: 38399130 PMCID: PMC10890299 DOI: 10.3390/ma17040879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024]
Abstract
Plant-derived selenium is an important source of selenium (Se) for humans, which, however, has been restricted by a low content of Se in soil. Traditional Se fertilizers have tended to result in low selenium utilization. Thus, it was necessary to develop a new slow-release material to control Se fertilizer release. In this study, biochar pyrolyzed at 300 °C and 800 °C was cross-linked with polyethyleneimine (PEI) after being treated with HNO3 or NaOH (which were labeled Acid-W300, Acid-W800, Alkali-W300, and Alkali-W800). The results showed that the maximum adsorption capacities of Acid-W300, Alkali-W300, Acid-W800, and Alkali-W800 were 329.16 mg/g, 321.93 mg/g, 315.04 mg/g, and 344.33 mg/g, respectively. Among them, Acid-W800 and Alkali-W800 were mainly imine- and amide-bonded with SO32-, while Acid-W300 and Alkali-W300 were loaded with SO32- by forming the C-Se bonding as well as through imine- and amide-bonding. The release of four biochar-based selenium fertilizers in the red soil and brown soil extracts conformed to the pseudo-second-order kinetic model. The release rate and release amount of four biochar-based selenium fertilizers in the red soil extract were higher than those in the brown soil extract. Alkali-W800-Se had a higher proportion of Se-exchangeable release, accounting for 87.5% of the total loaded selenium, while Acid-W300-Se had the lowest proportion at 62.2%. However, the Se releases of Alkali-W800-Se were more than 42.49% and 37.67% of the total Se-loading capacity during 5 days of continuous red soil extraction and brown soil extraction, respectively. Acid-W300-Se released less than 20% of the total Se-loading capacity. Thus, Acid-W300-Se was the recommended slow-release Se fertilizer in red soil and brown soil.
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Affiliation(s)
- Jun Chu
- Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China; (J.C.); (S.W.); (J.Y.); (Y.G.)
| | - Suikai Wang
- Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China; (J.C.); (S.W.); (J.Y.); (Y.G.)
| | - Jie Yu
- Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China; (J.C.); (S.W.); (J.Y.); (Y.G.)
| | - Yuting Gao
- Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China; (J.C.); (S.W.); (J.Y.); (Y.G.)
| | - Zhenya Tang
- Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China; (J.C.); (S.W.); (J.Y.); (Y.G.)
- Yunnan Provincial Field Scientific Observation and Research Station on Water-Soil-Crop System in Seasonal Arid Region, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Provincial Key Laboratory of High-Efficiency Water Use and Green Production of Characteristic Crops in Universities, Kunming University of Science and Technology, Kunming 650500, China
| | - Qiliang Yang
- Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China; (J.C.); (S.W.); (J.Y.); (Y.G.)
- Yunnan Provincial Field Scientific Observation and Research Station on Water-Soil-Crop System in Seasonal Arid Region, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Provincial Key Laboratory of High-Efficiency Water Use and Green Production of Characteristic Crops in Universities, Kunming University of Science and Technology, Kunming 650500, China
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Zhang Y, Li C, Zhou Y, Lu Z, Wen A, Wu X. Selenium-Rich Black Soldier Fly Supplementation Enriches Serum Indexes and Egg Selenium Content in Laying Hens. Biol Trace Elem Res 2024:10.1007/s12011-024-04078-8. [PMID: 38316701 DOI: 10.1007/s12011-024-04078-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 01/21/2024] [Indexed: 02/07/2024]
Abstract
A certain amount of selenium (Se) is usually added to the diet of laying hens to improve the quality and nutritional value of eggs. The present study was carried out to investigate the effect of selenium-rich black soldier fly (BSF) supplementation in diets on laying production performance, egg quality, serum indexes, and egg selenium content of Hy-line variety brown laying hens. A total of 288 at 49-week-old healthy laying hens were divided into 3 treatment groups with 6 replicates per group and 16 hens per replicate using a single-factor completely randomized design. Treatments consisted of (1) control (basal diet without supplemental Se), (2) 0.30 mg/kg supplemental Se, (Se as sodium selenite, SS), and (3) 0.30 mg/kg supplemental Se (Se as selenium-rich black soldier fly, SE-BSF). Laying performance was not affected by dietary Se. There was no effect of selenium-rich BSF on egg quality (P > 0.05). The contents of malonaldehyde (MDA) were significantly reduced (P < 0.05). On the contrary, dietary Se supplementation increased the activity of superoxide dismutase (SOD, P < 0.05) and catalase (CAT, P < 0.05) and increased the concentration of reduced glutathione (P < 0.05). In addition, selenium-rich BSF supplementation significantly increased the Se content of eggs (P < 0.05). These results indicate that Se supplementation did not affect laying production performance and egg quality of laying hens, but the supplementation could improve antioxidant capacity and increased the Se content of eggs.
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Affiliation(s)
- Yunting Zhang
- College of Animal Science, Anhui Science and Technology University, Bengbu, 233100, People's Republic of China
| | - Changbao Li
- College of Animal Science, Anhui Science and Technology University, Bengbu, 233100, People's Republic of China
| | - Yahao Zhou
- College of Animal Science, Anhui Science and Technology University, Bengbu, 233100, People's Republic of China
| | - Zhentao Lu
- College of Animal Science, Anhui Science and Technology University, Bengbu, 233100, People's Republic of China
| | - Aiyou Wen
- College of Animal Science, Anhui Science and Technology University, Bengbu, 233100, People's Republic of China
| | - Xuezhuang Wu
- College of Animal Science, Anhui Science and Technology University, Bengbu, 233100, People's Republic of China.
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Hall JA, Bobe G, Filley SJ, Bohle MG, Pirelli GJ, Wang G, Davis TZ, Bañuelos GS. Impact of selenium biofortification on production characteristics of forages grown following standard management practices in Oregon. FRONTIERS IN PLANT SCIENCE 2023; 14:1121605. [PMID: 37063195 PMCID: PMC10102540 DOI: 10.3389/fpls.2023.1121605] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
INTRODUCTION Low selenium (Se) concentrations in soils and plants pose a health risk for ruminants consuming locally-grown forages. Previous studies have shown that Se concentrations in forages can be increased using soil-applied selenate amendments. However, the effects of foliar selenate amendments applied with traditional nitrogen-phosphorus-potassium-sulfur (NPKS) fertilizers on forage yields, and nutrient contents, and agronomic efficiencies are unknown. METHODS Using a split plot design, we determined the effects of springtime sodium selenate foliar amendment rates (0, 45, and 90 g Se ha-1) and NPKS application (none, NPK for grasses/PK for alfalfa, and NPKS/PKS fertilization at amounts adapted to meet local forage and soil requirements) on forage growth and N, S, and Se concentrations, yields, and agronomic efficiencies. This 2-year study was conducted across Oregon on four representative forage fields: orchardgrass (Dactylis glomerata L.) in Terrebonne (central Oregon), grass-clover mixture in Roseburg (southwestern Oregon), and both grass mixture and alfalfa (Medicago sativa L.) fields in Union (eastern Oregon). RESULTS Grasses grew poorly and were low in N content without NPK fertilization. Fertilization with NPK/PK promoted forage growth, increased forage N concentrations, and had to be co-applied with S when plant available S was low. Without Se amendment, forage Se concentrations were low and further decreased with NPKS/PKS fertilization. Selenate amendment linearly increased forage Se concentration without adversely affecting forage yields, N and S concentrations, or N and S agronomic efficiencies. DISCUSSION Importantly, S fertilization did not interfere with Se uptake in Se amended plots. In conclusion, co-application of NPKS/PKS fertilizers and foliar sodium selenate in springtime is an effective strategy to increase forage total Se concentrations, while maintaining optimal growth and quality of Oregon forages.
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Affiliation(s)
- Jean A. Hall
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR, United States
| | - Gerd Bobe
- Department of Animal and Rangeland Sciences, College of Agricultural Sciences, Oregon State University, Corvallis, OR, United States
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Shelby J. Filley
- Department of Animal and Rangeland Sciences, College of Agricultural Sciences, Oregon State University, Corvallis, OR, United States
| | - Mylen G. Bohle
- Department of Crop and Soil Science, College of Agricultural Sciences, Oregon State University, Corvallis, OR, United States
| | - Gene J. Pirelli
- Department of Animal and Rangeland Sciences, College of Agricultural Sciences, Oregon State University, Corvallis, OR, United States
| | - Guogie Wang
- Department of Crop and Soil Science, College of Agricultural Sciences, Oregon State University, Corvallis, OR, United States
| | - T. Zane Davis
- United States Department of Agriculture (USDA), Agricultural Research Service-Poisonous Plant Research Lab, Logan, UT, United States
| | - Gary S. Bañuelos
- United States Department of Agriculture (USDA), Agricultural Research Service-San Joaquin Valley Agricultural Sciences Center, Parlier, CA, United States
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