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Subtropical forest macro-decomposers rapidly transfer litter carbon and nitrogen into soil mineral-associated organic matter

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Forest Ecosystems 2024年第2期11卷 131-139页

作者： Guoxiang Niu Tao Liu Zhen Zhao Xuebing Zhang Huiling Guan Xiaoxiang He Xiankai Lu National Engineering Laboratory for Applied Technology of Forestry and Ecology in South China Central South University of Forestry and TechnologyChangsha410004China Lushan Botanical Garden Chinese Academy of SciencesJiujiang332900China Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems South China Botanical GardenChinese Academy of SciencesGuangzhou510650China Section of microbial Ecology Department of BiologyLund UniversityLund22362Sweden Lutou National Station for Scientific Observation and Research of Forest Ecosystem in Hunan Province Yueyang414000China

Background:Forest soils in tropical and subtropical areas store a significant amount of *** framework to assess soil organic matter(SOM)dynamics under evolving global conditions suggest that dividing bulk SOM into particulate and mineral-associated organic matter(POM ***)is a promising method for identifying how SOM contributes to reducing global *** macrofauna,earthworms,and millipedes have been found to play an important role in facilitating SOM ***,how these two co-existing macrofaunae impac the litter decomposition process and directly impact the formation of POM and MAOM remains ***:Here,we set up a microcosm experiment,which consisted of 20 microcosms with four treatments earthworm and litter addition(E),millipedes and litter addition(M),earthworm,millipedes,and litter addition(E+M),and control(only litter addition)in five *** soil and litter were sterilized prior to beginning the incubation experiment to remove any existing *** incubating the samples for 42 days,the litte properties(mass,C,and N contents),soil physicochemical properties,as well as the C and N contents,and POM and MAOM^(13)C abundance in the 0–5 and 5–10 cm soil layers were ***,the relative influences o soil physicochemical and microbial properties on the distribution of C and N in the soil fractions were analyzed Results:The litter mass,C,and N associated with all four treatments significantly decreased after incubation especially under treatment E+M(litter mass:-58.8%,litter C:-57.0%,litter N:-75.1%,respectively),while earthworm biomass significantly decreased under treatment *** or millipede addition alone showed no significant effects on the organic carbon(OC)and total nitrogen(TN)content in the POM fraction,but join addition of both significantly increased OC and TN regardless of soil ***,all three macrofauna treatments increased the OC and TN content and decreased the^(13)C abundance

关键词： Tropical and subtropical forest Soil organic matter fractions Earthworm Millipedes Litter decomposition

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Ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scales

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mLife 2024年第1期3卷 21-41页

作者： Vadakattu V.S.R.Gupta James M.Tiedje CSIRO Agriculture&Food UrrbraeSouth AustraliaAustralia Centre for microbial Ecology Michigan State UniversityEast LansingMichiganUSA

The incredibly complex soil microbial communities at small scales make their analysis and identification of reasons for the observed structures *** community structure is mainly a result of the inoculum(dispersal),the selective advantages of those organisms under the habitat-based environmental attributes,and the ability of those colonizers to sustain themselves over *** soil is protective,and its microbial inhabitants have long adapted to varied soil conditions,significant portions of the soil microbial community structure are likely ***,a substantial portion of the community will not correlate to often measured soil *** suggest that the drivers be ranked on the basis of their importance to the fundamental needs of the microbes:(i)those that supply energy,i.e.,organic carbon and electron acceptors;(i)environmental effectors or stressors,i.e.,pH,salt,drought,and toxic chemicals;(ii)macro-organism associations,i.e.,plants and their seasonality,animals and their fecal matter,and soil fauna;and(iv)nutrients,in order,N,P,and probably of lesser importance,other micronutrients,and *** relevance of drivers also varies with spatial and time scales,for example,aggregate to field to regional,and persistent to dynamic populations to transcripts,and with the extent of phylogenetic difference,hence phenotypic differences in organismal *** present a summary matrix to provide guidance on which drivers are important for particular studies,with special emphasis on a wide range of spatial and temporal scales,and illustrate this with genomic and population(rRNA gene)data from selected studies.

关键词： abundance community structure diversity functional microbiome microorganisms

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Chemical biology investigation of a triple-action,smart-decomposition antimicrobial booster based-combination therapy against “ESKAPE” pathogens

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Science China Chemistry 2024年第9期67卷 3071-3082页

作者： Min Wang Huangsheng Pu Yangfan Xu Chenxuan Wu Yuanxin Gu Qingyun Cai Guoxing Yin Peng Yin Chunhui Zhang Wing-Leung Wong Muyang Wan Yugang Bai Xinxin Feng State Key Laboratory of Chem-/Bio-Sensing and Chemometrics Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biologyand School of Chemistry and Chemical Engineering Hunan University College of biology Hunan University College of Advanced Interdisciplinary Studies & Hunan Provincial Key Laboratory of Novel Nano Optoelectronic Information Materials and Devices National University of Defense Technology Nanhu Laser Laboratory National University of Defense Technology Key Laboratory of Chemical biology and Traditional Chinese Medicine Research (Ministry of Education) College of Chemistry and Chemical Engineering Hunan Normal University State Key Laboratory of Chemical biology and Drug Discovery Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hunan Provincial Key Laboratory of Anti-Resistance microbial Drugs The Third Hospital of Changsha (The Affiliated Changsha Hospital of Hunan University)

The global antibiotic resistance crisis necessitates urgent solutions. One innovative approach involves potentiating antibiotics and non-antibiotic drugs with adjuvants or boosters. A major drawback of these membrane-active boosters is their limited biocompatibility, as they struggle to differentiate between prokaryotic and eukaryotic membranes. This study reports the chemical biology investigation of a dual-action oligoamidine(OA1) booster with a glutathione-triggered decomposition mechanism. OA1, when combined with other antimicrobial molecules, exhibits a triple-targeting mechanism including cell membrane disruption, DNA targeting, and intracellular enzyme inhibition. This multi-targeting mechanism not only enhances the in vitro and in vivo eradication of antibiotic-resistant “ESKAPE” pathogens, but also suppresses the development of bacterial resistance. Furthermore, OA1 maintains its activity in bacterial cells by creating an oxidative environment, while it quickly decomposes in mammalian cells due to high glutathione levels. These mechanistic insights and design principles may provide a feasible approach to develop novel antimicrobial agents and effective anti-resistance combination therapies.

关键词： antimicrobial booster oligoamidine membrane disruption DNA targeting triggered degradation anti-resistance

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High-quality assembled and annotated genomes of Nicotiana tabacum and Nicotiana benthamiana reveal chromosome evolution and changes in defense arsenals

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molecular Plant 2024年第3期17卷 423-437页

作者： Jubin Wang Qingling Zhang Jeffrey Tung Xi Zhang Dan Liu Yingtian Deng Zhendong Tian Huilan Chen Taotao Wang Weixiao Yin Bo Lij Zhibing Lai Savithramma P.Dinesh-Kumar Barbara Baker Feng Li National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhanHubei 430070China Plant Gene Expression Center Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyBerkeleyCA 94706USA College of Plant Science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China College of Life Science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China department of Plant biology and The Genome Center College of Biological SciencesUniversity of CalforniaDavisDavisCA 95616USA The Key Laboratory of Horticultural Plant Genetic and Improvement of Jiangxi Province Institute of Biological ResourcesJiangxi Academy of SciencesNanchang 330299China institute of Vegetables and Flowers Jiangxi Academy of Agricultural SciencesNanchang 330200Chin Hubei Hongshan Laboratory WuhanHubei 430070China

Nicotiana tabacum and Nicotiana benthamiana are widely used models in plant biology ***,genomic studies of these species have *** we report the chromosome-level reference genome assemblies for *** and *** with an estimated 99.5%and 99.8%completeness,*** transcription start and termination site sequencing methods were developed and used for accurate gene annotation in *** analyses revealed evidence for the parental origins and chromosome structural changes,leading to hybrid genome formation of each ***,theantiviral silencinggenesRDR1,RDR6,DCL2,DCL3,andAGO2were lost from one or both subgenomes in ***,while both homeologs were kept in ***,the *** genome encodes fewer immune receptors and signaling components than that of *** find-ings uncover possible reasons underlying the hypersusceptible nature of *** developed the user-friendly Nicomics(http:/***/Nicomics/)web server to facilitate better use of Nicotiana genomic resources as well as gene structure and expression analyses.

关键词： Nicotiana tabacum Nicotiana benthamiana genomics evolution disease resistance NLR

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Microbiome changes in esophageal cancer:implications for pathogenesis and prognosis

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Cancer biology & Medicine 2024年第2期21卷 163-174页

作者： Yi Li Bing Wei Xia Xue Hongle Li Jun Li department of molecular Pathology Clinical Pathology CenterAffiliated Cancer Hospital of Zhengzhou University and Henan Cancer HospitalZhengzhou 450003China Henan Key Laboratory of molecular Pathology Zhengzhou 450003China Henan Key Laboratory of Helicobacter pylori&Microbiota and Gastrointestinal Cancer Marshall Medical Research CenterThe Fifth Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China

Esophageal cancer(EC)is an aggressive malignancy with a poor *** factors,including dietary habits,and antacid and antibiotic use,have been shown to influence the esophageal ***,enrichment and diversity of the esophageal microbiome can also impact its *** studies have revealed prevalent changes in the esophageal microbiome among patients with EC,thus suggesting the potential contribution of the esophageal microbiome to EC ***,distinct microbiome compositions have been observed in patients with different responses to radiotherapy and chemotherapy,indicating the role of the esophageal microbiome in modulating treatment *** this review,we have examined previous studies on the esophageal microbiome in healthy individuals and patients with EC or other esophageal diseases,with a focus on identifying microbial communities associated with EC pathogenesis and *** the role of the microbiome in EC may aid in early detection and optimized treatment strategies,ultimately leading to better outcomes for patients.

关键词： Esophageal cancer microbiome dysbiosis microenvironment carcinogenesis

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Inhibitory effect and mechanism of tannic acid against two starch digestive enzymes

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Food Quality and Safety 2024年第1期8卷 115-123页

作者：钟毓秀倪德让杨玉波李元一王莉田金虎杨帆叶兴乾 department of Food Science and Nutrition Zhejiang Key Laboratory for Agri-Food ProcessingFuli Institute of Food ScienceZhejiang R&D Centre for Food Technology and EquipmentZhejiang UniversityHangzhouChina Institute of Science and Technology Moutai GroupZunyiChina Key Laboratory of Industrial microbial Resources Development Kweichow Moutai Co.Ltd.RenhuaiChina

Backgrounds:Tannic acid(TA),as a plant-derived phenolic substance,is involved in regulating the activity of starch digestive enzymes,but its underlying mechanism remains *** and Results:In the present study,inhibition rate and inhibition kinetics assays were performed and confrmed that TA had a strong inhibitory effect on bothα-amylase andα-glucosidase with IC50 values of 0.1585 mg/mL and 0.00542 mg/mL,respectively,through a mixed inhibition *** secondary structures of both enzymes were confrmed to be modifed by TA through circular dichroism(CD)*** quenching analysis revealed that the interaction between TA and two enzymes was a static process of pontaneous complex ***,molecular docking revealed that non-covalent bonds were the main interaction forces between TA and both ***:Thus,TA was a promising candidate for the inhibition of starch-digesting enzymes,and the present research provided insight into postprandial glucose regulation through polyphenols.

关键词： Tannic acid α-amylase α-glucosidase inhibition starch digestion.

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Griseofulvin enantiomers and bromine-containing griseofulvin derivatives with antifungal activity produced by the mangrove endophytic fungus Nigrospora ***1

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Marine Life Science & Technology 2024年第1期6卷 102-114页

作者： Ge Zou Wencong Yang Tao Chen Zhaoming Liu Yan Chen Taobo Li Gulab Said Bing Sun Bo Wang Zhigang She School of Chemistry Sun Yat-sen UniversityGuangzhou 510275China State Key Laboratory of Applied Microbiology Southern China Guangdong Provincial Key Laboratory of Microbial Culture Collection and ApplicationInstitute of MicrobiologyGuangdong Academy of SciencesGuangzhou 510070China School of Pharmacy Anhui Medical UniversityHefei 230032China department of Chemistry Women University SwabiSwabi 23430Pakistan

Marine microorganisms have long been recognized as potential sources for drug *** was one of the first antifungal natural products and has been used as an antifungal agent for *** this study,12 new griseofulvin derivatives[(±)-1-2,(+)-3,(±)-4,10-12,and 14-15]and two new griseofulvin natural products(9 and 16)together with six known analogues[(-)-3,5-8,and 13]were isolated from the mangrove-derived fungus Nigrospora ***1 treated with 0.3%NaCl or 2%NaBr in rice solid *** 2D structures and absolute configurations were established by extensive spectroscopic analysis(1D and 2D NMR,HRESIMS),ECD spectra,computational calculation,DP4+analysis,and X-ray single-crystal *** 1-4 represent the first griseofulvin enantiomers with four absolute configurations(2S,6'S;2R,6'R;2S,6'R;2R,6'S),and compounds 9-12 represent the first successful production of brominated griseofulvin derivatives from fungi via the addition of NaBr to the culture *** the antifungal assays,compounds 6 and 9 demonstrated significant inhibitory activities against the fungi Colletotrichum truncatum,Microsporum gypseum,and Trichophyton mentagrophyte with inhibition zones varying between 28 and 41 mm(10μg/disc).The structure-activity relationship(SAR)was analyzed,which showed that substituents at C-6,C-7,C-6'and the positions of the carbonyl and double bond of griseofulvin derivatives significantly affected the antifungal activity.

关键词： Mangrove endophytic fungus Nigrospora sp. Griseofulvin Antifungal activity

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Discovery and mechanism of anti-hypertensive effect of a novel tripeptide(SYP) from medicinal fungus Ganoderma lingzhi

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Food Science and Human Wellness 2024年

作者： Qiang Wu Feijun Luo Jia Huang Ping Huang Yongnan Liu Xiaoling Wang Gaoqiang Liu Hunan Provincial Key Laboratory of Forestry Biotechnology and International Cooperation Base of Science and Technology Innovation on Forest Resource Biotechnology Central South University of Forestry and Technology microbial Variety Creation Center Laboratory of Yuelushan Seed Industry College of Food and Chemical Engineering Shaoyang University Laboratory of molecular Nutrition National Engineering Laboratory for Rice and Byproducts Central South University of Forestry and Technology

Ganoderma lingzhi is a new species of the prize medicinal mushroom Ganoderma (Agaricomycetes). Using angiotensin I-converting enzyme (ACE) as a target， a tripeptide Ser-Tyr-Pro (SYP) was discovered with preponderant ACE inhibitory activity with an 50% inhibiting concentration (IC50) value of 62.50 μg/mL attribute to the formed salt bridge and hydrogen bonds between SYP and ACE. SYP even maintained superior bioactivity after intestinal digestion， and exerted no cytotoxicity， but presented incomplete bioavailability in blood of spontaneous hypertensive rats (SHRs). Furthermore， it performed antihypertensive effect in vivo by inhibiting the influx of Ca2+through activating endothelial NO synthase (eNOS)/NO/guanosine 3’，5’-cyclic monophosphate (cGMP) pathway， accompanied by attenuating angiotensin Ⅱ (Ang Ⅱ)/NADPH oxidase (NOX)/ROS pathway. This work not only discoverers a novel pharmacological ingredient from medicinal mushroom G. lingzhi for hypertension therapy， but also provides an insight into molecular mechanism of the ACE inhibitory peptide (ACEIP) on lowering blood pressure.

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Plant regeneration in the new era:from molecular mechanisms to biotechnology applications

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Science China(Life Sciences) 2024年第7期67卷 1338-1367页

作者： Chunli Chen Yuxin Hu Momoko Ikeuchi Yuling Jiao Kalika Prasad Ying Hua Su Jun Xiao Lin Xu Weibing Yang Zhong Zhao Wenkun Zhou Yun Zhou Jian Gao Jia-Wei Wang National Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crops Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China College of Life Science and Technology Huazhong Agricultural UniversityWuhan 430070China Key Laboratory of Plant molecular Physiology Institute of BotanyChinese Academy of Sciences(CAS)China National Botanical GardenBeijing 100093China Division of Biological Sciences Graduate School of Science and TechnologyNara Institute of Science and TechnologyNara 630-0192Japan State Key Laboratory of Protein and Plant Gene Research School of Life SciencesPeking UniversityBeijing 100871China Peking-Tsinghua Center for Life Sciences Center for Quantitative BiologyAcademy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871China Indian Institute of Science Education and Research Pune 411008IndiaThiruvananthapuram 695551India State Key Laboratory of Wheat Improvement College of Life SciencesShandong Agricultural UniversityTai’an 271018China Sino-German Joint Research Center on Agricultural biology Shandong Agricultural UniversityTai’an 271018China Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental Biology(IGDB)CASBeijing 100101China CAS-JIC Centre of Excellence for Plant and microbial Science(CEPAMS) IGDBCASBeijing 100101China National Key Laboratory of Plant molecular Genetics CEMPSInstitute of Plant Physiology and Ecology(SIPPE)CASShanghai 200032China CEPAMS SIPPECASShanghai 200032China Hefei National Laboratory for Physical Sciences at the Microscale CEMPSSchool of Life SciencesDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230027China State Key Laboratory of Plant Environmental Resilience College of Biological SciencesChina Agricultural UniversityBeijing 100193China department of Botany and Plant Pathology and Center for Plant biology Purdue UniversityWest Lafayette 47907USA School of Life Science and Technology Shang

Plants or tissues can be regenerated through various *** animal regeneration,cell totipotency and pluripotency are the molecular basis of plant *** systematic studies on Arabidopsis thaliana gradually unravel the fundamental mechanisms and principles underlying plant ***,plant hormones,cell division,epigenetic remodeling,and transcription factors play crucial roles in reprogramming somatic cells and reestablishing meristematic *** research on basal non-vascular plants and monocot crops has revealed that plant regeneration differs among species,with various plant species using distinct mechanisms and displaying significant differences in regenerative *** multi-omics studies at the single-cell level,tracking plant regeneration processes in real-time,and deciphering the natural variation in regenerative capacity will ultimately help understand the essence of plant regeneration,improve crop regeneration efficiency,and contribute to future crop design.

关键词： apical meristem model species regeneration phytohormone plant cell reprogramming somatic embryogenesis

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Dynamic changes in butyrate levels regulate satellite cell homeostasis by preventing spontaneous activation during aging

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Science China(Life Sciences) 2024年第4期67卷 745-764页

作者： Shujie Chen Liujing Huang Bingdong Liu Huimin Duan Ze Li Yifan Liu Hu Li Xiang Fu Jingchao Lin Yinlan Xu Li Liu Dan Wan Yulong Yin Liwei Xie department of Endocrinology and Metabolism Zhujiang HospitalSouthern Medical UniversityGuangzhou 510280China State Key Laboratory of Applied Microbiology Southern China Guangdong Provincial Key Laboratory of Microbial Culture Collection and ApplicationGuangdong Open Laboratory of Applied MicrobiologyInstitute of MicrobiologyGuangdong Academy of SciencesGuangzhou 510070China School of Public Health Xinxiang Medical UniversityXinxiang 453003China department of Infectious Diseases Nanfang HospitalSouthern Medical UniversityGuangzhou 510515China Metabo-Profile Biotechnology(Shanghai)Co.Ltd. Shanghai 201315China Institute of Aging Research Guangdong Provincial Key Laboratory of Medical Molecular DiagnosticsSchool of Medical TechnologyGuangdong Medical UniversityDongguan 524023China department of Rehabilitation Medicine Nanfang HospitalSouthern Medical UniversityGuangzhou 510000China Laboratory of Animal Nutritional Physiology and Metabolic Process Key Laboratory of Agro-ecological Processes in Subtropical RegionInstitute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125China Bioland Laboratory Guangzhou Regenerative Medicine and Health Guangdong LaboratoryGuangzhou 510005China

The gut microbiota plays a pivotal role in systemic metabolic processes and in particular functions,such as developing and preserving the skeletal muscle ***,the interplay between gut microbiota/metabolites and the regulation of satellite cell(SC)homeostasis,particularly during aging,remains *** propose that gut microbiota and its metabolites modulate SC physiology and homeostasis throughout skeletal muscle development,regeneration,and aging *** investigation reveals that microbial dysbiosis manipulated by either antibiotic treatment or fecal microbiota transplantation from aged to adult mice,leads to the activation of SCs or a significant reduction in the total ***,employing multi-omics(e.g.,RNA-seq,16S r RNA gene sequencing,and metabolomics)and bioinformatic analysis,we demonstrate that the reduced butyrate levels,alongside the gut microbial dysbiosis,could be the primary factor contributing to the reduction in the number of SCs and subsequent impairments during skeletal muscle ***,butyrate supplementation can mitigate the antibiotics-induced SC activation irrespective of gut microbiota,potentially by inhibiting the proliferation and differentiation of SCs/*** butyrate effect is likely facilitated through the monocarboxylate transporter 1(Mct1),a lactate transporter enriched on membranes of SCs and *** a result,butyrate could serve as an alternative strategy to enhance SC homeostasis and function during skeletal muscle *** findings shed light on the potential application of microbial metabolites in maintaining SC homeostasis and preventing skeletal muscle aging.

关键词： gut microbiota aging satellite cells butyrate Slc16a1(Mct1)

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