通讯机构：
[Boqing Tie] H;Hunan Engineering & Technology Research Center for Irrigation Water Purification, College of Resources and Environment, Hunan Agricultural University, Changsha, People’s Republic of China<&wdkj&>Key Laboratory of Southern Farmland Pollution Prevention and Control, Ministry of Agriculture, Changsha, China
通讯机构：
[Liu, An] K;Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, Hunan 410128, China. xiaowenjun88@sina.com and National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, China and Hunan Agricultural University, Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
摘要：
The cyclic nucleotide-gated ion channel (CNGC) family affects the uptake of Ca2+, regulates the growth and development, pathogen defense, and abiotic stress tolerance in plants. However, the systematic identification, origin, and function of the CNGC gene family has not been performed in Brassica napus. In the present study, we identified 61 putative BnaCNGC genes in the B. napus genome, which are non-randomly localized on 18 chromosomes, and could be classified into five major groups: Group I, II, III, IV-a, and IV-b. Gene structure, multiple sequence alignment, and MEME analysis showed that all the CNGC genes are intron rich and conserved. The expression analysis showed that the BnaCNGC genes have different expression patterns in B. napus, under different phytohormones, abiotic stresses (cold, hot, waterlogging), and infection of Sclerotinia sclerotiorum. Among them, four genes (BnaC03g31050D, BnaC03g31720D, BnaA05g01380D and BnaC04g01250D) from Group I and two genes (BnaCnng45430D and BnaA03g34680D) from Group IV-a, all were strongly induced by SA and infection of S. sclerotiorum, and reduced by cold and heat stresses, suggesting their importance in the abiotic and biotic stress responses in rapeseed. Our comprehensive genome-wide analysis represents a rich data resource for studying the CNGC gene family in B. napus.
摘要：
Pseudorabies virus (PRV) is an economically significant swine infectious agent. A PRV outbreak took place in China in 2011 with novel virulent variants. Although the association of viral genomic variability with pathogenicity is not fully confirmed, the knowledge concerning PRV genomic diversity and evolution is still limited. Here, we sequenced 54 genomes of novel PRV variants isolated in China from 2012 to 2017. Phylogenetic analysis revealed that China strains and US/Europe strains were classified into two separate genotypes. PRV strains isolated from 2012 to 2017 in China are highly related to each other and genetically close to classic China strains such as Ea, Fa, and SC. RDP analysis revealed 23 recombination events within novel PRV variants, indicating that recombination contributes significantly to the viral evolution. The selection pressure analysis indicated that most ORFs were under evolutionary constraint, and 19 amino acid residue sites in 15 ORFs were identified under positive selection. Additionally, 37 unique mutations were identified in 19 ORFs, which distinguish the novel variants from classic strains. Overall, our study suggested that novel PRV variants might evolve from classical PRV strains through point mutation and recombination mechanisms.
作者机构：
[Hu, Ruiwen; Yan, Qingyun; Wu, Bo; Shu, Longfei; Wang, Cheng; He, Zhili] Sun Yat Sen Univ, Southern Marine Sci & Engn Guangdong Lab Zhuhai, Sch Environm Sci & Engn, Environm Microbiom Res Ctr, Guangzhou 510006, Peoples R China.;[Zhao, Haiming; Mo, Cehui] Jinan Univ, Coll Life Sci & Technol, Guangdong Prov Res Ctr Environm Pollut Control &, Guangzhou 510632, Peoples R China.;[Xu, Xihui] Nanjing Agr Univ, Minist Agr, Coll Life Sci, Dept Microbiol,Key Lab Microbiol Agr Environm, Nanjing 210095, Peoples R China.;[Wang, Zhigang] Qiqihar Univ, Sch Life Sci & Agr & Forestry, Qiqihar 161006, Peoples R China.;[Yu, Ke] Peking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen 518055, Peoples R China.
通讯机构：
[Cheng Wang] E;Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou 510006, China
通讯机构：
[Dai, XH; Guo, QY] G;[Dai, XH; Guo, QY] N;Gannan Normal Univ, Sch Life Sci, Leafminer Grp, Ganzhou 341000, Peoples R China.;Natl Navel Orange Engn Res Ctr, Ganzhou 341000, Peoples R China.
关键词：
Body shape;Host plant;Mitochondrial genome;Phylogenetic tree;Platypriella;Triplispa
摘要：
Simple SummaryWith 387 species, Dactylispa is a large genus of family Chrysomelidae, subfamily Cassidinae, and the most species-rich genus of leaf-mining hispine beetles. Among leaf-mining hispines, Dactylispa also feeds on the largest number of host plants, including 29 families and 80 genera, with the main hosts belonging to Poaceae, Rosaceae, and Fagaceae. Some species of Dactylispa are economic crop pests. However, the subgenus classification of Dactylispa species, which is currently based on morphology only, is problematic. Molecular phylogenetic studies may help solve this problem. In this study, we aimed to report the first eight mitochondrial genomes of Dactylispa and construct the first molecular phylogenetic trees of Dactylispa. The evolutionary relationships among three subgenera of Dactylispa were partially resolved by the molecular trees. However, more species should be included to solve the evolutionary issues for this genus of leaf-mining beetles.The taxonomic classification of Dactylispa, a large genus of leaf-mining beetles, is problematic because it is currently based on morphology alone. Here, the first eight mitochondrial genomes of Dactylispa species, which were used to construct the first molecular phylogenies of this genus, are reported. The lengths of the eight mitogenomes range from 17,189 bp to 20,363 bp. All of the mitochondrial genomes include 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNAs), 2 ribosomal RNA genes (rRNAs), and 1 A + T-rich region. According to the nonsynonymous/synonymous mutation ratio (Ka/Ks) of all PCGs, the highest and the lowest evolutionary rates were found for atp8 and cox1, respectively, which is a common phenomenon among animals. According to relative synonymous codon usage, UUA(L) has the highest frequency. With two Gonophorini species as the outgroup, mitogenome-based phylogenetic trees of the eight Dactylispa species were constructed using maximum likelihood (ML) and Bayesian inference (BI) methods based on the PCGs, tRNAs, and rRNAs. Two DNA-based phylogenomic inferences and one protein-based phylogenomic inference support the delimitation of the subgenera Dactylispa s. str. and Platypriella as proposed in the system of Chen et al. (1986). However, the subgenus Triplispa is not recovered as monophyletic. The placement of Triplispa species requires further verification and testing with more species. We also found that both adult body shape and host plant relationship might explain the subgeneric relationships among Dactylispa beetles to a certain degree.
作者机构：
[Wu, Jun; Deng, Qiyun; Shen, Hong; Zhuang, Wen; Xiao, Gui; Bai, Bin; Yao, Dongping; Li, Jianwu] Hunan Hybrid Rice Res Ctr, State Key Lab Hybrid Rice, Changsha 410125, Hunan, Peoples R China.;[Luo, Qiuhong; Lei, Dongyang] Hunan Agr Univ, Coll Agron, Changsha 410128, Hunan, Peoples R China.;[Deng, Qiyun; Li, Yingge] BioRice Hunan Co Ltd, Changsha 410323, Hunan, Peoples R China.
通讯机构：
[Dongyang Lei] C;[Bin Bai] S;College of Agronomy, Hunan Agricultural University, Changsha, Hunan, 410128, China<&wdkj&>State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, Hunan, 410125, China
关键词：
Rice;Comprehensive evaluation;High temperature tolerance;Grain-filling stage;Starch physicochemical indexes
摘要：
In order to compare the high temperature tolerance of six rice varieties, field experiments using interval sowing population were conducted to select sowing batches at high temperature and normal temperature during grain filling period. High filling temperature decreased significantly head milled rice rate, setback, amylose content and the proportion of the short chain of amylopectin, and increased obviously chalkiness, breakdown, gelatinization temperature, gelatinization enthalpy, and the proportion of the medium chain of amylopectin. Analysis of variance indicated significant differences with respect to physicochemical indexes of the starches from six rice varieties under high temperature during grain filling stage. In addition, five starch physicochemical indexes including apparent amylose content, setback, breakdown, chalkiness and gelatinization enthalpy showed more sensitivity to high temperature. These indexes could be considered as key indexes to evaluate the high temperature tolerance of these six rice varieties. The experimental results showed that the high temperature tolerance of the six varieties - Huanghuazhan, Y liangyou 957, Taiyou 390, Tianyouhuazhan, Zhongzao 39, Y liangyou NO 1 - ranged from strong to weak. The regression equation showed similar results and indicated that the high temperature tolerance of different varieties could be preliminarily evaluated using the key physicochemical indexes of starch.
通讯机构：
[Mo Peng] C;College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China<&wdkj&>Key Laboratory of Featured Hydrobios Nutritional Physiology and Healthy Breeding, Nanchang, China
关键词：
antioxidant capacity;gelatinized starch;gluconeogenesis;glycolysis;rice field eel
摘要：
A 47-day feeding trial was conducted to investigate the effects of increasing dietary carbohydrates on the growth performance, nutrient metabolism, oxidative status and fillet texture of rice field eel (Monopterus albus). Three isonitrogenous (39%) and isoenergetic diets (17.7 kJ/g) were formulated with 16% (S16), 28% (S28) or 40% (S40) gelatinized starch. Each diet was randomly fed to triplicate cages with 60 fish in each replicate cage. The results suggested that the growth of M. albus was independent of dietary treatments. Higher level of gelatinized starch (40%) displayed a negative impact on intestinal amylase and trypsin enzymes, concurrent with impaired liver function in terms of higher activities of serum alanine aminotransferase and alkaline phosphatase. Although the higher gelatinized starch could inhibit the activities of enzymes involved in glycolysis (pyruvate kinase and phosphofructokinase) and gluconeogenesis (fructose-1,6-bisphosphatase), the hepatic glycogen content was observed to be positively associated with gelatinized starch level. High gelatinized starch had negative effects on intestinal antioxidant capacity by suppressing the activities of glutathione peroxidase and total superoxide dismutase. In addition, dietary starch could influence the fillet texture of M. albus by affecting hardness, springiness and chewiness. S40 group displayed a significant increase in the hardness of fillet, whilst the chewiness and springiness of fillet in S28 group were remarkably lower than those in the other groups. Overall, these results indicated that M. albus could tolerate 40% gelatinized starch level without significant impacts on growth performance, whilst excessive gelatinized starch might exert negative impacts on digestive enzyme activities and antioxidant capacity after 47 days of feeding.
通讯机构：
[Min Huang] C;Crop and Environment Research Center for Human Health, College of Agronomy, Hunan Agricultural University, Changsha, China
关键词：
grain quality;low temperature;rice
摘要：
Late-season rice, a major contributor to the production of high-quality rice in China, often experiences low temperatures during the flowering period. The objective of this study was to determine the effect of low temperature stress on grain quality and to identify related physiological factors in late-season rice. Sink and source characteristics and grain quality traits of two high-quality late-season rice cultivars were compared between a year in which low temperatures occurred during the flowering period (2020) and a normal year (2019) under field conditions. Low temperatures during the flowering period in 2020 resulted in a reduction in spikelet filling and consequent increases in source-sink ratios and grain weight and N content compared to 2019. The head rice rate and protein content of the milled rice were increased in 2020 compared to 2019. Starch gel consistency and peak, trough, breakdown, final, and consistency viscosities were reduced while setback viscosity, paste temperature, and texture properties (hardness, springiness, cohesiveness, resilience, and chewiness) were increased for milled rice (or milled rice flour or cooked milled rice) in 2020 compared to 2019. The glucose production rate and total glucose production from in vitro digestion of cooked milled rice was reduced in 2020 compared to 2019. The results of this study suggest that low temperature stress during the flowering period can improve milling, nutritional, and health qualities but reduce the cooking and eating quality in late-season rice by altering the source-sink relationship.
摘要：
Magnetic MXene composite Fe3O4@Ti3C2 was successfully prepared and employed as 17 alpha-ethinylestradiol (EE2) adsorbent from water solution. The response surface methodology was employed to investigate the interactive effects of adsorption parameters (adsorption time, pH of the solution, initial concentration, and the adsorbent dose) and optimize these parameters for obtaining maximum adsorption efficiency of EE2. The significance of independent variables and their interactions were tested by the analysis of variance (ANOVA) and t-test statistics. Optimization of the process variables for maximum adsorption of EE2 by Fe3O4@Ti3C2 was performed using the quadratic model. The model predicted maximum adsorption of 97.08% under the optimum conditions of the independent variables (adsorption time 6.7 h, pH of the solution 6.4, initial EE2 concentration 0.98 mg L-1, and the adsorbent dose 88.9 mg L-1) was very close to the experimental value (95.34%). pH showed the highest level of significance with the percent contribution (63.86%) as compared to other factors. The interactive influences of pH and initial concentration on EE2 adsorption efficiency were significant (p < 0.05). The goodness of fit of the model was checked by the coefficient of determination (R-2) between the experimental and predicted values of the response variable. The response surface methodology successfully reflects the impact of various factors and optimized the process variables for EE2 adsorption. The kinetic adsorption data for EE2 fitted well with a pseudo-second-order model, while the equilibrium data followed Langmuir isotherms. Thermodynamic analysis indicated that the adsorption was a spontaneous and endothermic process. Therefore, Fe3O4@Ti3C2 composite present the outstanding capacity to be employed in the remediation of EE2 contaminated wastewaters.
作者机构：
[Xiong, Yuanfu; Su, Yifeng] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.;[Zhang, Xin; Xia, Mao; Xiong, Yuanfu; Su, Yifeng; Wen, Yujiao; Zhou, Nan; Zhou, Zhi; Yang, Wenjing] Hunan Agr Univ, Sch Chem & Mat Sci, Changsha 410128, Peoples R China.;[Zhang, Xin; Su, Yifeng; Wen, Yujiao; Zhou, Nan; Zhou, Zhi; Yang, Wenjing] Hunan Agr Univ, Hunan Engn Res Ctr Biochar, Changsha 410128, Peoples R China.;[Wen, Yujiao] Hunan Agr Univ, Coll Agron, Changsha 410128, Peoples R China.
通讯机构：
[Zhi Zhou] S;School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China<&wdkj&>The Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha 410128, China
期刊：
Environmental Science and Pollution Research,2021年28(33):45745-45755 ISSN：0944-1344
通讯作者：
Abou-Elwafa, Salah Fatouh
作者机构：
[Aljabri, Maha] Umm Al Qura Univ, Fac Appl Sci, Dept Biol, Mecca 21955, Saudi Arabia.;[Aljabri, Maha] Umm Al Qura Univ, Fac Appl Sci, Res Labs Ctr, Mecca 21955, Saudi Arabia.;[Alharbi, Saif] King Abdul Aziz City Sci & Technol, Riyadh 11442, Saudi Arabia.;[Al-Qthanin, Rahmah N.] King Khalid Univ, Coll Sci, Biol Dept, Abha 61421, Saudi Arabia.;[Al-Qthanin, Rahmah N.] King Khalid Univ, Prince Sultan Bin Abdul Aziz Ctr Environm & Touri, Abha 61421, Saudi Arabia.
通讯机构：
[Abou-Elwafa, Salah Fatouh] A;Agronomy Department, Faculty of Agriculture, Assiut University, Assiut, 71526, Egypt.
作者机构：
[Peng, Yizhe; Mao, Qiming; Yang, Jian; Yang, Yuan; Zhou, Yaoyu; Luo, Shuang; Luo, Lin] Hunan Agr Univ, Coll Resources & Environm, Int Joint Lab Hunan Agr Typ Pollut Restorat & Wat, Changsha 410128, Peoples R China.;[Peng, Yizhe; Peng, Kejian] Hunan Res Acad Environm Sci, Hunan Key Lab Water Pollut Control Technol, Changsha 410004, Peoples R China.
关键词：
high-iron red mud;nano-Fe3O4;Sb(III);kinetics and isotherms;mechanism
摘要：
The resource utilization of excess red mud produced from aluminum production is a current research focus. In this study, novel nano-Fe3O4 modified high-iron red mud material (HRM@nFe(3)O(4)) was fabricated using the method of co-precipitation to remove Sb(III) from the aqueous phase. The HRM@nFe(3)O(4) at a nFe(3)O(4):HRM mass ratio of 1:1 had optimal adsorbing performance on Sb(III) in water. Compared with others, the synthetic HRM@nFe(3)O(4) sorbent had a superior maximum Sb(III) adsorption capacity of 98.03 mg center dot g(-1), as calculated by the Langmuir model, and a higher specific surface area of 171.63 m(2)center dot g(-1), measured using the Brunauer-Emmett-Teller measurement. The adsorption process was stable at an ambient pH range, and negligibly limited by temperature the coexisting anions, except for silicate and phosphate, suggesting the high selectivity toward Sb(III). HRM@nFe(3)O(4) retained more than 60% of the initial adsorption efficiency after the fifth adsorption-desorption cycle. The kinetic data fitted by the pseudo-second-order model illustrated the existence of a chemical adsorption process in the adsorption of Sb(III). Further mechanism analysis results indicated that the complexation reaction played a major role in Sb(III) adsorption by HRM@nFe(3)O(4). This HRM@nFe(3)O(4) adsorbent provides an effective method for the removal of Sb(III) in wastewater treatment and is valuable in the reclamation of red mud.
摘要：
Various pharmaceuticals have been detected in natural water and wastewater bodies, causing threats to water ecosystem and human health. Although electrochemical anodic-oxidation (EAO) has been shown to be efficient for pharmaceuticals degradation from aqueous solution, it still has a distinct need to apply EAO technology for pharmaceuticals removal rationally. This review provides the most recent progress on the mechanisms, influencing factors, and new technique of EAO for pharmaceuticals degradation. The mechanism and superiority of EAO were analyzed. Major influencing factors (e.g., electrode materials, electrochemical reactor, applied current density, anode-cathode distance, electrolyte type and concentration, initial solution pH value, and initial pharmaceuticals concentration) were discussed on the removal of pharmaceuticals. The latest development of reactive electrochemical membranes (REM) was regarded as an emerging EAO technique, and it was also highlighted. This work revealed that the EAO of pharmaceuticals has extraordinary application prospects in the field of water and wastewater treatment.
期刊：
ISPRS International Journal of Geo-Information,2021年10(7):466- ISSN：2220-9964
通讯作者：
Nan Yang
作者机构：
[Zhao, Yunlin; Xu, Zhenggang; Mo, Wenbo] Cent South Univ Forestry & Technol, Key Lab Forestry Remote Sensing Based Big Data &, Changsha 410004, Peoples R China.;[Mo, Wenbo] Hunan City Univ Design & Res Inst Co LTD, Changsha 410028, Peoples R China.;[Mo, Wenbo] Hunan Urban & Rural Ecol Planning & Restorat Engn, Changsha 410028, Peoples R China.;[Yang, Nan] Hunan City Univ, Coll Architecture & Urban Planning, Lab Key Technol Digital Urban Rural Spatial Plann, Yiyang 413000, Peoples R China.;[Zhao, Weiping] Hunan Agr Univ, Sch Business, Changsha 410128, Peoples R China.
通讯机构：
[Nan Yang] L;Laboratory of Key Technologies of Digital Urban-Rural Spatial Planning of Hunan Province, College of Architecture & Urban Planning, Hunan City University, Yiyang 413000, China<&wdkj&>Author to whom correspondence should be addressed.
关键词：
water yield services;InVEST;land use;land cover;Dongjiang Lake Basin
摘要：
Spatial and quantitative assessments of water yield services in watershed ecosystems are necessary for water resource management and improved water ecological protection. In this study, we used the InVEST model to estimate regional water yield in the Dongjiang Lake Basin in China. Moreover, we designed six scenarios to explore the impacts of climate and land use/land cover (LULC) changes on regional water yield and quantitatively determined the dominant mechanisms of water yield services. The results are expected to provide an important theoretical reference for future spatial planning and improvements of ecological service functions at the water source site. We found that (1) under the time series analysis, the water yield changes of the Dongjiang Lake Basin showed an initial decrease followed by an increase. Spatially, water yield also decreased from the lake area to the surrounding region. (2) Climate change exerted a more significant impact on water yield changes, contributing more than 98.26% to the water yield variability in the basin. In contrast, LULC had a much smaller influence, contributing only 1.74 %. (3) The spatial distribution pattern of water yield services in the watershed was more vulnerable to LULC changes. In particular, the expansion of built-up land is expected to increase the depth of regional water yield and alter its distribution, but it also increases the risk of waterlogging. Therefore, future development in the basin must consider the protection of ecological spaces and maintain the stability of the regional water yield function.
期刊：
Journal of Building Engineering,2021年35:101969 ISSN：2352-7102
通讯作者：
Zheng, Bohong
作者机构：
[Li, Jiayu; Qi, Zhiyong; Zheng, Bohong; Bedra, Komi Bernard] Cent South Univ, Sch Architecture & Art, Changsha 410083, Peoples R China.;[Chen, Xiao] Hunan Agr Univ, Coll Landscape & Art Design, Changsha 410128, Peoples R China.;[Zheng, Jian] South China Univ Technol, Sch Architecture, Guangzhou 510641, Peoples R China.;[Li, Zilong; Liu, Luyun] Cent South Univ Forestry & Technol, Coll Landscape Architecture, Changsha 410004, Peoples R China.
通讯机构：
[Zheng, Bohong] C;Cent South Univ, Sch Architecture & Art, Changsha 410083, Peoples R China.
关键词：
Vertical greening;Pattern;Indoor PET;PET distribution
摘要：
Vertical greening is an influential element in built environment that affects the indoor thermal environment and the residents’ thermal perception. This research aims to identify the optimum vertical greening patterns for indoor thermal comfort in cold winter and hot summer areas. The general parameters of greening walls were extracted according to the constituent materials, and Envi-met model was employed to calculate the indoor thermal indexes based on the meteorological data acquired from the national meteorological station. PET isotherm was used to reveal the distribution of a year-round thermal perception. The analytical result showed that modular green walls have the highest proportion of livable PET, annually. Livable PET includes “comfortable”, “slightly cold” and “slightly hot” thermal perceptions. Linear green walls have the second highest proportion of livable PET, even though modular green walls and linear green walls extended “very cold” thermal perceptions in winter. Considering the annual PET distribution, the modular green walls and linear green walls are suitable for hot climatic regions, while the green facades pattern is preferable in the cold climate areas.
