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Insulin Receptor Substrate is Involved in Regulating Active Immunization of the Subterranean Termite Reticulitermes Chinensis Against Fungal Infections

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SSRN 2022年

作者： Wei, Zhou Xingying, Zhao Hassan, Ali Bao, Jia Long, Liu Huang, Qiuying Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory Huazhong Agricultural University Wuhan430070 China Nanning Institute of Termite Control Nanning530023 China Plant Protection College Henan Agricultural University Zhengzhou450002 China

Insulin receptor substrate (IRS) proteins are key mediators in insulin signaling pathway. In social insect lives, IRS proteins played important roles in caste differentiation and foraging, but its function in disease defenses such as active immuniztion has not been reported yet. We successfully silenced the IRS gene 3 days after dsRNA injection. Silencing IRS gene down-regulated the expression of its downstream genes phosphatidylinositol 3-kinase ( PI3k ) and Akt serine / threonine kinase / protein kinase B ( AKT/PKB ) in the insulin signaling pathway, and reduced the triglyceride content in termites. Then we tested the effect of IRS silencing on behavioral and physiological responses during active immunization in termites. IRS silencing significantly enhanced grooming behaviors of nestmates of fungus-contaminated termites and hence increased the conidial load in the guts of the the nestmates. IRS silencing significantly reduced the antifungal activity of nestmates of fungus-contaminated termites, together with the downregulation of the immune genes Gram-negative bacteria-binding protrin2 ( GNBP2 ) and termicin and upregulation of the apoptotic gene caspase 8 . The above abnormal behavioral and physiological responses significantly decreased the survival rate of ds IRS -injected nestmates of the fungus-contaminated termites. These findings suggest that IRS is involved in regulation of active immunization in termites, providing a better understanding of the link between insulin signaling and social immunity of termites. © 2022, The Authors. All rights reserved.

关键词： Bacteria

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Intermolecular Hydrogen Bond Modulating the Selective Coupling of Protons and Co2 to Ch4 Over Nitrogen-Doped Carbon Layers Modified Cobalt

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SSRN 2022年

作者： Ma, Minzhi Chen, Jiahao Huang, Zeai Fa, Wenjun Wang, Fang Rao, Zhiqiang Wang, Rui Zhang, Ruiyang Cao, Yuehan Zou, Yanzhao Zhou, Ying State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu610500 China Institute of Carbon Neutrality School of New Energy and Materials Southwest Petroleum University Chengdu610500 China Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province College of Advanced Materials and Energy Xuchang University Henan 461000 China Department of Petroleum Engineering Kazan Federal University Kazan420008 Russia Hubei Key Laboratory of Biologic Resources Protection and Utilization China

Photocatalytic reduction of CO 2 with H 2 O to CH 4 is a promising route to complete the carbon neutrality goal. Nevertheless, one of the biggest challenges for this elegant strategy is that the coupling of the protons and CO 2 to form CH 4 is fiercely competed with proton-proton couplings to form H 2 or CO generation, leading to extremely low CH 4 selectivity. Herein, we designed and fabricated the nitrogen-doped carbon layers modified cobalt (N-C@Co) photocatalyst for modulating the selective coupling of protons and CO 2 to CH 4 during photocatalytic reduction of CO 2 . In situ DRIFTS and DFT calculations revealed that the formation of intermolecular hydrogen bond between the as-prepared N-C@Co and H 2 O molecule was found to suppress the mass transfer of the generated protons and promote the adsorption of CO 2 molecule. More crucially, it was conducive to suppress the desorption of the CO intermediate product that was typically recognized as the decisive specie for CH 4 generation. As a result, the H 2 selectivity (9.1 %) and activity (17.3 µmol g -1 ) of the as-prepared N-C@Co were reduced by a factor of 9.2 and 17.6, respectively, as compared to that of bulk Co. The CH 4 selectivity of N-C@Co was boosted 6.2 times from13.3% of bulk Co to 82.0 % of N-C@Co with the generation rate of 155.7 μmol g −1 . This work provides a fresh insight into the photocatalyst design for improving CH 4 selectivity and suppressing the competing H 2 and CO generation. © 2022, The Authors. All rights reserved.

关键词： Molecules

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Coextraction of vanadium and manganese from highmanganese containing vanadium wastewater by a solvent extraction-precipitation process

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Frontiers of Chemical Science and Engineering 2020年第5期14卷 902-912页

作者： Zishuai Liu Yimin Zhang Zilin Dai Jing Huang Cong Liu School of Resource and Environmental Engineering Wuhan University of Science and TechnologyWuhan 430081China Guangdong Research Institute of Rare-Metal Guangzhou 510650China State Environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization and Pollution Control Wuhan University of Science and TechnologyWuhan 430081China Hubei Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources Wuhan University of Science and TechnologyWuhan 430081China Hubei Provincial Engincering Technology Research Center of High Eficient Cleaning Uilization for Shale Vanadium Resources Wuhan University of Science and TechnologyWuhan 430081China

High-manganese containing vanadium waste-water(HMVW)is commonly produced during the vanadium extraction process from vanadium *** cannot be reused and discharged directly,and is harmful to the environment and affect product quality due to heavy metals in the *** wastewater is usually treated by lime neutralization,but valuable metals(especially V and Mn)cannot be *** this study,an efficient and environmentally friendly method was developed to recover valuable metals by using a solvent extraction-precipitation *** the solvent extraction process,98.15%of vanadium was recovered,and the V2Os product,with a purity of 98.60%,was obtained under optimal *** the precipitation process,91.05%of manganese was recovered as MnCO3 which meets the III grade standard of HG/T *** simulation analysis indicated that MnCO3 was selectively precipitated at pH 6.5 while Mg and Ca could hardly be *** results of X-ray diffraction and scanning electron microscopy demonstrated that the obtained V2Os and MnCO3 displayed a good degree of *** treated wastewater can be returned for leaching,and resources(V and Mn)in the wastewater were utilized efficiently in an environmentally friendly ***,this study provides a novel method for the coextraction of V and Mn from HMVW.

关键词： high-manganese containing vanadium waste-water solvent extraction carbonate precipitation vanadium titano-magnetite valuable metal recovery

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Microsatellites reveal strong genetic structure in the common cutworm, Spodoptera litura

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Journal of Integrative Agriculture 2019年第3期18卷 636-643页

作者： WU Huai-heng WAN Peng HUANG Min-song LEI Chao-liang Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory Huazhong Agricultural University Key Laboratory of Integrated Pest Management on Crops in Central China Institute of Plant Protection and Soil ScienceHubei Academy of Agricultural Sciences

The common cutworm, Spodoptera litura(Lepidoptera: Noctuidae), is a voracious agricultural pest. To increase understanding of the migration patterns and genetic diversity of different geographic populations of this species, we analyzed genetic variation in nine microsatellite loci among 576 individuals collected from 17 locations in China and one in Myanmar during 2011–2012. We successfully identified 162 alleles, with an average of 18 alleles per locus and a range of 5 to 34. The mean observed heterozygosity of the 18 populations ranged from 0.18 to 0.98, and the expected heterozygosity ranged from 0.19 to 0.89. For the nine microsatellite markers studied, polymorphism information content ranged from 0.18 to 0.88(mean=0.64). We found low genetic differentiation among the 18 populations(mean F-statistics(F_(ST))=0.05) and high genetic diversity among individuals. Principle coordinates analysis indicated no significant correlation between geographic and genetic distance(r=0.04). The value of N_m(N_m>4) estimated using coalescent-based methods suggests strong gene flow with migration. The nine microsatellite markers identified in this study will be beneficial for further investigation of migration patterns and genetic diversity in S. litura.

关键词： Spodoptera litura microsatellite genetic diversity

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Eco−Friendly Recycling of Silicon−Rich Lye: Synthesis of Hierarchically Structured Calcium Silicate Hydrate and its Application for Phosphorus Removal

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SSRN 2022年

作者： Qi, Fang Zhu, Ganyu Zhang, Yimin Li, Huiquan Li, Shaopeng Yang, Chennian Zhang, Jianbo College of Resources and Environmental Engineering State Environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization and Pollution Control Wuhan University of Science and Technology Hubei Province Wuhan430081 China Key Laboratory of Green Process and Engineering National Engineering Research Center of Green Recycling for Strategic Metal Resources Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China

Silicon−rich lye (SRL), a byproduct generated from pre−treatment of coal−based solid waste (CSW), was considered as a preponderant silicon source to prepare hierarchically nanostructured calcium silicate hydrate (C−S−H). Through the novel mild−causticization synthesis strategy, C−S−H was prepared under optimal caustic process conditions at time of 3 h, temperature of 80°C, Ca/Si of 1.25:1, and active CaO to obtain a conversion rate of Si up to 97.33% during the high−value utilization of SRL. The synthesized C−S−H possesses abundant mesoporous structure and massive exchangeable active sites, whose formation in C−S−H is advanced through an appropriate elevation regulation of caustic temperature and time. The adsorption capacity up to 119.27 mg/g for C−S−H presents outstanding removal performance toward phosphorus in the industrial wastewater than massive other previous reports. The removal mechanism of phosphorus can be identified as the surface chemisorption and formation of calcium phosphate co−precipitation. This study can provide considerable and potential guidance to the coordinated disposal between industrial solid wastes and wastewater purification. © 2022, The Authors. All rights reserved.

关键词： Phosphorus

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Biodegradation of sodium selenite by a highly tolerant strain Rhodococcus qingshengii PM1: Biochemical characterization and comparative genome analysis

Current Research in Microbial Sciences

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Current Research in Microbial Sciences 2025年 9卷

作者： Zhiyong Wang Xue Hou Zhikang Guo Xue Lei Mu Peng Hubei Key Laboratory of Biological Resources Protection and Utilization Hubei Minzu University Enshi 445000 China College of Biological and Food Engineering Hubei Minzu University Enshi 445000 China School of Medical Technology and Artificial Intelligence Youjiang Medical University for Nationalities Baise 533000 China

Background Rhodococcus is an important genus of soil bacteria known for its metabolic diversity and environmental adaptability under harsh and contaminated conditions. However, few studies have reported on the selenium metabolism of Rhodococcus species. Results Here, we isolated a highly selenite-resistance strain PM1 (up to 100 mM) from a selenium-rich mine in Enshi City. This strain reduced 50 mM sodium selenite by 99 % within 72 h. SEM and XPS revealed that PM1 reduced selenite to selenium nanorods (SeNRs). Phylogenetic analysis identified PM1 as R. qingshengii . The whole genome of strain PM1 was sequenced, and a comparative genome analysis of strain PM1with 64 other genomes of Rhodococcus was performed. Whole genome sequencing identified a total of 97 heavy metal resistance genes in strain PM1. Comparative genomics revealed that Rhodococcus species possess an open pan-genome, indicating adaptability to diverse environments. Genomic analysis revealed a total of 96 putative selenite-reducing proteins in strain PM1. Four gene clusters, involved in the pentose phosphate pathway, iron-sulfur cluster assembly, sulfate reductase cluster, and sulfate transport complex, showed high conservation of sequence identity within these species. Conclusions To our knowledge, this research enhances our understanding of high selenite reduction in strain PM1 at genomic level and elucidates the biotechnological applications of selenite-reducing bacteria in environmental remediation.

关键词： Rhodococcus qingshengii Sodium selenite Selenite reduction Whole genome sequencing Comparative genomics

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Coordinated transcriptomic and metabolomic analyses reveal mechanisms involved in smut disease resistance in Rheum officinale Baill

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Gene 2025年 964卷

作者： Yuying Yang Yuqing Duan Yuan Luo Xiaogang Jiang Hua Wang Haihua Liu Jinwen You Meide Zhang Wuxian Zhou Key Laboratory of Biology and Cultivation of Herb Medicine Ministry of Agriculture and Rural Affairs Institute of Chinese Herbal Medicine Hubei Academy of Agricultral Science Enshi China. Hubei Key Laboratory of Biologic Resources Protection and Utilization Hubei Minzu University Enshi China. Key Laboratory of Biology and Cultivation of Herb Medicine Ministry of Agriculture and Rural Affairs Institute of Chinese Herbal Medicine Hubei Academy of Agricultral Science Enshi China. Electronic address: zhangmeide@***. Key Laboratory of Biology and Cultivation of Herb Medicine Ministry of Agriculture and Rural Affairs Institute of Chinese Herbal Medicine Hubei Academy of Agricultral Science Enshi China. Electronic address: zhouwuxian@***.

The rampant outbreak of smut disease has led to a sharp decline in the yield and quality of Rheum officinale Baill. (R. officinale), therefore, research on the molecular mechanisms and regulatory pathways of smut disease is urgent. After long-term observation and screening, we identified three-year-old healthy R. officinale plants that had not yet developed disease in the infected area, and selected infected plants as controls. GO and KEGG functional enrichment analyses revealed significantly enriched GO terms and metabolic pathways. We obtained 20 DEGs that were highly enriched in infected plants compared with healthy plants, including a broad-spectrum disease resistance gene named nonexpressor of pathogenesis-related gene 1 (RoNPR1). And we found that during the occurrence of smut disease, RoPW220, RoNPR1, and RoWRKY40 were highly enriched and has a significant effect on the production of important secondary metabolites such as anthraquinone in R. officinale. Analysis revealed that the structural domains and protein functions of RoNPR1 are highly conserved. The RoNPR1 gene is located in the nucleus and is expressed in various tissues. The occurrence of smut induces a high accumulation of mRNA transcripts of the RoNPR1 gene in stems, leaves, and petioles. As the invasion of stems deepens, the expression level of the RoNPR1 gene increases more significantly from stage Ⅰ to stage Ⅴ. During stages Ⅴ to VIII, the expression level of the RoNPR1 gene gradually decreases, indicating that smut disease may have caused severe damage to the growth of R. officinale. Through yeast hybridization, we verified that RoNPR1 physically interacts with the bZIP transcription factors TGACG sequence-specific binding protein 1 (RoTGA1), RoTGA2, RoTGA3, RoTGA5, and RoTGA8. In R. officinale, RoNPR3 and RoNPR4 may also play a role in the occurrence of smut disease. These results will help understanding the specific genes involved in the resistance to the smut disease.

关键词： Metabolome Rheum officinale Baill. RoNPR1 Smut disease Transcriptome

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Improved Recovery of Lithium from Spent Lithium-Ion Batteries by Reduction Roasting and Nahco3 Leaching

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SSRN 2023年

作者： Liu, Wenke Qin, Qingwei Zhang, Hailin Chen, Xing Xiong, Jiachun Han, Yunwu Zhang, Chunguang Li, Guangqiang Zheng, Shili Li, Ping The State Key Laboratory of Refractories and Metallurgy State Environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization Pollution Control Wuhan University of Science and Technology 947 Heping Avenue Qingshan District Hubei Wuhan430081 China National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences 1 North Second Street Zhongguancun Haidian District Beijing100190 China Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences 1 Kexueyuan Road Ganxian District JiangXi Ganzhou341100 China CNPC Petrochemical Research Institute 7 Kunlun Road Shahe Town Changping District Beijing102206 China

Lithium supply risk is increasing and is driving the rapid progress of recycling schemes for lithium from spent lithium-ion batteries. In this study, a facile recycling process consisting mainly of reduction roasting and NaHCO3 leaching was adopted to improve lithium recovery. Li2CO3 and LiAlO2 were formed with the reduction effect of C and residual Al of spent LiNixCoyMnzO2 powder in the roasting process. NaHCO3 leaching was utilized to dissolve lithium of Li2CO3 and water-insoluble LiAlO2 selectively. More than 99.2% of lithium was leached and recovered as a Li2CO3 product with a purity of 99.8%, and NaHCO3 could be recycled as by-product. Thus, a highly efficient and selective approach for recovering lithium from spent LIB powder is provided in this study. © 2023, The Authors. All rights reserved.

关键词： Leaching

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Improved Recovery of Lithium from Spent Lithium-Ion Batteries by Reduction Roasting and Nahco3 Leaching

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SSRN 2023年

关键词： Leaching

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Improved Recovery of Lithium from Spent Lithium-Ion Batteries by Reduction Roasting and Nahco3 Leaching

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SSRN 2023年

关键词： Leaching

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