通讯机构：
[Wei Hou; Wei Hou Wei Hou Wei Hou] C;College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, P.R. China
摘要：
I was invited to make a brief commentary on a recent article titled “Determining Spatially Varying Profit-Maximizing Management Practices for Miscanthus and Switchgrass Production in the Rainfed United States” published in GCBB by Zhang et al. (2022). In the work, they propose management practices to maximize profitability through economically optimal N fertilizer application, temporal and spatial variation, and optimal age rotation of two energy crops. This interesting and thoroughly investigated result would be instructive for the applications of perennial energy crops.
通讯机构：
[Tiean Zhou; Yanyang Wu] A;Authors to whom correspondence should be addressed.<&wdkj&>College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China<&wdkj&>Hunan Provincial Engineering Technology Research Center for Cell Mechanics and Function Analysis, Changsha 410128, China<&wdkj&>Authors to whom correspondence should be addressed.<&wdkj&>College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
通讯机构：
[Ai-qing Zhao] S;[Zhong-hua Liu; Ai-ling Liu] N;National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Co-Innovation Centre of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, Hunan, China<&wdkj&>College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China<&wdkj&>Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi, China<&wdkj&>National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Co-Innovation Centre of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, Hunan, China<&wdkj&>Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, Hunan, China
摘要：
Polyphenol oxidase (PPO) is a metalloenzyme with a type III copper core that is abundant in nature. As one of the most essential enzymes in the tea plant (Camellia sinensis), the further regulation of PPO is critical for enhancing defensive responses, cultivating high-quality germplasm resources of tea plants, and producing tea products that are both functional and sensory qualities. Due to their physiological and pharmacological values, the constituents from the oxidative polymerization of PPO in tea manufacturing may serve as functional foods to prevent and treat chronic non-communicable diseases. However, current knowledge of the utilization of PPO in the tea industry is only available from scattered sources, and a more comprehensive study is required to reveal the relationship between PPO and tea obviously. A more comprehensive review of the role of PPO in tea was reported for the first time, as its classification, catalytic mechanism, and utilization in modulating tea flavors, compositions, and nutrition, along with the relationships between PPO-mediated enzymatic reactions and the formation of functional constituents in tea, and the techniques for the modification and application of PPO based on modern enzymology and synthetic biology are summarized and suggested in this article.
通讯机构：
[Guangfu Feng; Jun Fang] S;School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China<&wdkj&>School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
通讯机构：
[Chen, Junhua] N;National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China. Electronic address:
摘要：
The frequent emergence of SARS-CoV-2 variants increased viral transmissibility and reduced protection afforded by vaccines. The rapid, multichannel, and intelligent screening of variants is critical to minimizing community transmissions. DNA molecular logic gates have attracted wide attention in recent years due to the powerful information processing capabilities and molecular data biocomputing functions. In this work, some molecular switches (MSs) were connected with each other to implement arbitrary binary functions by emulating the threshold switching of MOS transistors and the decision tree model. Using specific sequences of different SARS-CoV-2 variants as inputs, the MSs net was used to build several molecular biocomputing circuits, including NOT, AND, OR, INHIBIT, XOR, half adder, half subtractor, full adder, and full subtractor. Four fluorophores (FAM, Cy3, ROX, and Cy5) were employed in the logic systems to realize the multichannel monitoring of the logic operation results. The logic response is fast and can be finished with 10 min, which facilitates the rapid wide-population screening for SARS-CoV-2 variants. Importantly, the logic results can be directly observed by the naked eye under a portable UV lamp, thus providing a simple and intelligent method to enable high-frequency point-of-care diagnostics, particularly in low-resource communities.
关键词：
aquatic plant;eutrophication;plant traitnetwork;littoral zone
摘要：
Our study elucidates how eutrophicationpromotes aquaticplant invasion based on 28 plant traits and highlights the importanceof mitigating eutrophication to combat plant invasion. Eutrophication and exotic species invasion are key driversof theglobal loss of biodiversity and ecosystem functions in lakes. We selectedtwo exotic plants (Alternanthera philoxeroides and Myriophyllum aquaticum) and twonative plants (Myriophyllum spicatum and Vallisneria spinulosa) to elucidatethe effect of eutrophication on exotic plant invasiveness. We foundthat (1) elevated nutrient favored invasion of exotic species andinhibited growth of native plants. Species combinations and plantdensities of native plants had limited effects on the resistance toinvasion of the exotics. (2) A. philoxeroides featured the tightest connectivity among traits, which is consistentwith its high competitive ability. Although eutrophication causedphysiological stress to A. philoxeroides, it could effectively regulate enzyme activity and alleviate thestress. (3) M. aquaticum possessedstrong tolerance to habitat disturbance and was highly disruptiveto the surrounding plants. Eutrophication will exacerbate the adverseeffects of M. aquaticum on the littoralecosystem. (4) Nutrient enrichment reduced the biomass and relativegrowth rates of V. spinulosa and loweredphenolics and starch contents of M. spicatum, thereby making them more susceptible to habitat fluctuations. Overall,our study highlights how eutrophication alters the invasiveness ofexotic plants and the resistance of native plants in the littoralzone, which is of relevance in a world with intensified human activities.
通讯机构：
[Jun Fang] C;College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, PR China<&wdkj&>Hunan Engineering Laboratory for Pollution Control and Waste Utilization in Swine Production, Changsha 410128, PR China
关键词：
Bacterial community;Composting;Nitrogen functional gene;Nitrogen loss
摘要：
This study investigated the impacts of adding FeSO(4) and biochar to cattle manure and rice straw composts on functional genes controlling nitrogen loss, bacterial community, nitrification, and denitrification. Four treatments were established, including a control group (CP), and CP mixtures that included 4% biochar (TG1), 4% FeSO(4) (TG2), or 2% FeSO(4) and 2% biochar (TG3). Compared to CP, TG1-3 had a lower total nitrogen loss rate, and TG3 resulted in reduced NH(3) (52.4%) and N(2)O (35.6%) emissions to mitigate nitrogen loss. The abundance of amoA and narG gene in TG3 was higher than in the other groups, and TG3 was beneficial to the growth of Proteobacteria and Actinobacteria. According to redundancy and Pearson analysis, TG3 had a positive effect on the nitrification process by increasing the abundance of amoA and narG. Thus, biochar and FeSO(4) addition mitigate nitrogen loss by regulating the nitrification processes.
作者机构：
[Xu, Yan; Hu, Ruibo; Li, Shengjun; Wang, Yu; He, Guo; Zhao, Xuhong] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Shandong Energy Inst, CAS Key Lab Biofuels,Shandong Prov Key Lab Energy, Qingdao 266101, Peoples R China.;[He, Guo] Univ Chinese Acad Sci, Beijing 100049, Peoples R China.;[Zhang, Zhihai; Hudson, Matthew] Univ Illinois, Carl R Woese Inst Genom Biol, Ctr Adv Bioenergy & Bioprod Innovat, Urbana, IL 61801 USA.;[Xiao, Liang] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Peoples R China.
通讯机构：
[Ruibo Hu; Shengjun Li; Ruibo Hu Ruibo Hu Ruibo Hu; Shengjun Li Shengjun Li Shengjun Li] C;CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao, 266101 People's Republic of China
作者机构：
[Li, Yuchen; Chen, Long; Mi, Baobin; He, Jiangnan; Wu, Fangfang; Zhou, Zhi] Hunan Agr Univ, Coll Agron, Coll Biosci & Biotechnol, Hunan Engn Res Ctr Biochar,Sch Chem & Mat Sci, Changsha 410128, Hunan, Peoples R China.;[Mi, Baobin] Hunan Acad Agr Sci, Res Inst Vegetables, Changsha 410125, Peoples R China.
通讯机构：
[Fangfang Wu] S;School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, College of Agronomy, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China
摘要：
In this study, functionalized banana peel biochar (BPB) was prepared by microwave-assisted pyrolysis for the first time to investigate its adsorption to malachite green (MG) dye. Adsorption experiments showed that the maximum adsorption capacity of BPB500 and BPB900 to malachite green reached 1790.30 and 2297.83 mg.g(-1) within 120 min. The adsorption behaviour was well-fitted by the pseudo-second-order kinetic model and Langmuir isotherm model, and Delta G(0) < 0, Delta H-0 > 0, indicated that the adsorption process was endothermic and spontaneous, dominated by chemisorption. The adsorption mechanism of MG dye on BPB included hydrophobic interaction, hydrogen bonding, pi-pi interaction, n-pi interaction, and ion exchange. Meanwhile, through regeneration tests, simulated wastewater treatment experiments, and cost calculations, it was found that BPB has great potential for practical applications. This work demonstrated that microwave-assisted pyrolysis is a viable low-cost approach for producing excellent sorbents from biomass, and banana peel is a promising feedstock to prepare biochar for dye removal.
作者机构：
[Tan, Xiaoyao; Ge, Dabing; Wang, Xiaoyan; Fu, Hui; Yuan, Guixiang] Hunan Agr Univ, Coll Resources & Environm, Ecol Dept, Hunan Prov Key Lab Rural Ecosyst Hlth Lake Dongti, Changsha 410128, Peoples R China.;[Li, Wei] Nanchang Inst Technol, Res Inst Ecol & Environm Sci, Nanchang, Jiangxi, Peoples R China.;[Jeppesen, Erik] Aarhus Univ, Dept Biosci, Silkeborg, Denmark.;[Jeppesen, Erik] Univ Chinese Acad Sci, Sino Danish Ctr Educ & Res SDC, Beijing, Peoples R China.;[Jeppesen, Erik] Middle East Tech Univ, Limnol Lab, Dept Biol Sci, Ankara, Turkey.
通讯机构：
[Hui Fu; Dabing Ge] E;Ecology Department, College of Resources & Environments, Hunan Provincial Key Laboratory of Rural Ecosystem Health in Lake Dongting Area, Hunan Agricultural University, Changsha, China
通讯机构：
[Zhi Liu] C;[Junhua Chen] N;College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China<&wdkj&>National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, China
