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Rice canopy temperature is affected by nitrogen fertilizer

Journal of Integrative Agriculture 2024年第3期23卷 824-835页

作者： Min Jiang Zhang Chen Yuan Li xiaomin huang Lifen huang Zhongyang Huo Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Agricultural College Yangzhou UniversityYangzhou 225009China Jiangsu Co-lnnovation Center for Modern Production Technology of Grain Crops Yangzhou UniversityYangzhou 225009China

Canopy temperature strongly influences crop yield formation and is closely related to plant physiological traits.However, the effects of nitrogen treatment on canopy temperature and rice growth have yet to be comprehensively examined. We conducted a two-year field experiment with three rice varieties(HD-5, NJ-9108, and YJ-805) and three nitrogen treatments(zero-N control(CK), 200 kg ha~(–1)(MN), and 300 kg ha~(–1)(HN)). We measured canopy temperature using a drone equipped with a high-precision camera at the six stages of the growth period. Generally,canopy temperature was significantly higher for CK than for MN and HN during the tillering, jointing, booting, and heading stages. The temperature was not significantly different among the nitrogen treatments between the milky and waxy stages. The canopy temperature of different rice varieties was found to follow the order: HD-5>NJ-9108>YJ-805, but the difference was not significant. The canopy temperature of rice was mainly related to plant traits, such as shoot fresh weight(correlation coefficient r=–0.895), plant water content(–0.912), net photosynthesis(–0.84), stomatal conductance(–0.91), transpiration rate(–0.90), and leaf stomatal area(–0.83). A structural equation model(SEM) showed that nitrogen fertilizer was an important factor affecting the rice canopy temperature.Our study revealed:(1) A suite of plant traits was associated with the nitrogen effects on canopy temperature,(2) the heading stage was the best time to observe rice canopy temperature, and(3) at that stage, canopy temperature was negatively correlated with rice yield, panicle number, and grain number per panicle. This study suggests that canopy temperature can be a convenient and accurate indicator of rice growth and yield prediction.

关键词： canopy temperature rice physiological and biochemical characteristics yield

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The Epstein-Barr virus-miRNA-BART6-5p regulates TGF-β/SMAD4 pathway to induce glycolysis and enhance proliferation and metastasis of gastric cancer cells

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Oncology Research 2024年第5期32卷 999-1009页

作者： XUHUI ZHAO xiaomin huang CHUNYAN DANG XIA WANG YUJIAO QI HONGLING LI The First Clinical Medical College Gansu University of Traditional Chinese MedicineLanzhou730000China Department of Oncology Gansu People’s HospitalLanzhou730000China The Clinical Medical College Ningxia Medical UniversityNingxia750004China

Background:EBV-miR-BARTs exhibit significant relevance in epithelial tumors,particularly in EBVassociated gastric and nasopharyngeal cancers.However,their specific mechanisms in the initiation and progression of gastric cancer remain insufficiently explored.Material and Methods:Initially,EBV-miRNA-BART6-5p and its target gene SMAD4 expression were assessed in EBV-associated gastric cancer tissues and cell lines.Subsequent transfection induced overexpression of EBV-miRNA-BART6-5p in AGS and MKN-45,and downregulation in EBVpositive cells(SUN-719).The subsequent evaluation aimed to observe their impact on gastric cancer cell proliferation,migration,and glycolytic processes,with the TGF-β/SMAD4 signaling pathway value clarified using a TGF-βinhibitor.Results:EBV-miRNA-BART6-5p exhibits pronounced upregulation in EBV-associated gastric cancer tissues and EBV-positive cells,while its target gene SMAD4 demonstrates downregulated expression.Upregulation of it can promote the proliferation and migration of gastric cancer cells.Additionally,We found EBV-miRNA-BART6-5p promotes glycolysis of gastric cancer cells.Inhibition of the TGF-β/SMAD4 signaling pathway resulted in suppressed proliferation and migration of gastric cancer cells,concomitant with a diminished glycolytic capacity.Conclusion:In this study,we found that EBV-miRNA-BART6-5p can target SMAD4,effectively increasing glycolysis in gastric cancer cells by regulating the TGF-β/SMAD4 signaling pathway,thereby enhancing the proliferation and metastasis of gastric cancer cells.Our findings may offer new insights into the metabolic aspects of gastric cancer.

关键词： EBV TGF-β/SMAD4 Glycolysis Gastric cancer

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Straw return influences the structure and functioning of arbuscular mycorrhizal fungal community in a rice-wheat rotation system

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Pedosphere 2024年第2期34卷 339-350页

作者： Silong ZHAI Junjie XIE Zongyi TONG Bing YANG Weiping CHEN Roger TKOIDE Yali MENG xiaomin huang Atta Mohi Ud DIN Changqing CHEN Haishui YANG College of Agriculture Nanjing Agricultural UniversityNanjing 210095China Department of Biology Brigham Young UniversityProvo UT 84602USA Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology Agricultural College of Yangzhou UniversityYangzhou 225009China National Research Center of Intercropping The Islamia University of BahawalpurBahawalpur 63100Pakistan Jiangsu Collaborative Innovation Center for Modern Crop Production Nanjing Agricultural UniversityNanjing 210095China

Straw return is a sustainable soil fertility-building practice,which can affect soil microbial communities.However,how straw return affects arbuscular mycorrhizal fungi(AMF)is not well explored.Here,we studied the impacts of different straw management treatments over eight years on the structure and functioning of AMF communities in a rice-wheat rotation system.The straw management treatments included no tillage with no straw(NTNS),rotary tillage straw return(RTSR),and ditch-buried straw return(DBSR).The community structure of AMF was characterized using high-throughput sequencing,and the mycorrhizal functioning was quantified using an in situ mycorrhizal-suppression treatment.Different straw management treatments formed unique AMF community structure,which was closely related to changes in soil total organic carbon,available phosphorus,total nitrogen,ammonium,and nitrate.When compared with NTNS,RTSR significantly increased Shannon diversity in 0–10 cm soil layer,while DBSR increased it in 10–20 cm soil layer;DBSR significantly increased hyphal length density in the whole ploughing layer(0–20 cm),but RTSR only increased it in the subsurface soil layer(10–20 cm).The mycorrhizal responses of shoot biomass and nutrient(N and P)uptake were positive under both straw return treatments(RTSR and DBSR),but negative under NTNS.The community composition of AMF was significantly correlated to hyphal length density,and the latter was further a positive predictor for the mycorrhizal responses of plant growth and nutrient uptake.These findings suggest that straw return can affect AMF community structure and functioning,and farmers should manage mycorrhizas to strengthen their beneficial effects on crop production.

关键词： community structure hyphal length density shoot biomass shoot N uptake shoot P uptake soil physicochemical properties straw management tillage

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Transcriptomics and physiological analyses reveal that sulfur alleviates mercury toxicity in rice(Oryza sativa L.)

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Journal of Environmental Sciences 2024年第1期135卷 10-25页

作者： Yingmei huang Jicai Yi xiaomin Li Fangbai Li 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 ManagementInstitute of Eco-Environmental and Soil SciencesGuangdong Academy of SciencesGuangzhou 510650China Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhou 510640China University of Chinese Academy of Sciences Beijing 100049China College of Life Sciences South China Agricultural UniversityGuangzhou 510642China SCNU Environmental Research Institute Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety&MOE Key Laboratory of Theoretical Chemistry of EnvironmentSouth China Normal UniversityGuangzhou 510006China

Mercury(Hg)is one of the most dangerous contaminants and has sparked global concern since it poses a health risk to humans when consumed through rice.Sulfur(S)is a crucial component for plant growth,and S may reduce Hg accumulation in rice grains.However,the detailed effects of S and the mechanisms underlying S-mediated responses in Hg-stressed rice plants remain unclear.Currently,to investigate the effects of S addition on rice growth,Hg accumulation,physiological indexes,and gene expression profiles,rice seedlings were hydroponically treated with Hg(20μmol/L Hg Cl_(2))and Hg plus elemental sulfur(100 mg/L).S application significantly reduced Hg accumulation in Hg-stressed rice roots and alleviated the inhibitory effects of Hg on rice growth.S addition significantly reduced Hg-induced reactive oxygen species generation,membrane lipid peroxidation levels,and activities of antioxidant enzymes while increasing glutathione content in leaves.Transcriptomic analysis of roots identified 3,411,2,730,and 581 differentially expressed genes in the control(CK)vs.Hg,CK vs.Hg+S,and Hg vs.Hg+S datasets,respectively.The pathway of S-mediated biological metabolism fell into six groups:biosynthesis and metabolism,expression regulation,transport,stimulus response,oxidation reduction,and cell wall biogenesis.The majority of biological process-related genes were upregulated under Hg stress compared with CK treatment,but downregulated in the Hg+S treatment.The results provide transcriptomic and physiological evidence that S may be critical for plant Hg stress resistance and will help to develop strategies for reduction or phytoremediation of Hg contamination.

关键词： Sulfur Mercury Transcriptomics Detoxification

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Dissolved organic matter accelerates microbial degradation of 17 alpha-ethinylestradiol in the presence of iron mineral

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Journal of Environmental Sciences 2024年第5期139卷 364-376页

作者： Huan He Min Shi Xiaoxia Yang Juhong Zhan Yanting Lin Ziwei Guo Zhicheng Liao Chaochao Lai xiaomin Ren Bin huang Xuejun Pan Faculty of Environmental Science and Engineering Kunming University of Science and TechnologyKunming 650500China Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control Kunming 650500China Research Institute for Environmental Innovation(Suzhou)Tsinghua Suzhou 215163China

Dissolved organic matter(DOM)and iron minerals widely existing in the natural aquatic environment can mediate the migration and transformation of organic pollutants.However,the mechanism of interaction between DOM and iron minerals in the microbial degradation of pollutants deserves further investigation.In this study,the mechanism of 17 alphaethinylestradiol(EE2)biodegradation mediated by humic acid(HA)and three kinds of iron minerals(goethite,magnetite,and pyrite)was investigated.The results found that HA and iron minerals significantly accelerated the biodegradation process of EE2,and the highest degradation efficiency of EE2(48%)was observed in the HA-mediated microbial system with pyrite under aerobic conditions.Furthermore,it had been demonstrated that hydroxyl radicals(HO·)was the main active substance responsible for the microbial degradation of EE2.HO·is primarily generated through the reaction between hydrogen peroxide secreted by microorganisms and Fe(II),with aerobic conditions being more conducive.The presence of iron minerals and HA could change the microbial communities in the EE2 biodegradation system.These findings provide new information for exploring the migration and transformation of pollutants by microorganisms in iron-rich environments.

关键词： Dissolved organic matter Iron mineral 17 alpha-ethinylestradiol Biodegradation

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Thermal Property Enhancement of a Novel Shape-Stabilized Sodium Acetate Trihydrate-Acetamide/Expanded Graphite-Based Composite Phase Change Material

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Journal of Thermal Science 2024年第4期33卷 1564-1576页

作者： AN Zhoujian HOU Wenjie DU Xiaoze huang Zhongzheng MOMBEKI PEA Hamir Johan ZHANG Dong LIU xiaomin College of Energy and Power Engineering Lanzhou University of Technology Key Laboratory of Multi-supply System with Solar Energy and Biomass of Gansu Province Gansu Natural Energy Research Institute

Phase change materials(PCMs) are a kind of highly efficient thermal storage materials which have a bright application prospect in many fields such as energy conservation in buildings,waste heat recovery,battery thermal management and so on.Especially inorganic hydrated salt PCMs have received increasing attention from researchers due to their advantages of being inexpensive and non-flammable.However,inorganic hydrated salt PCMs are still limited by the aspects of inappropriate phase change temperature,liquid phase leakage,large supercooling and severe phase separation in the application process.In this work,sodium acetate trihydrate was selected as the basic inorganic PCM,and a novel shape-stabilized composite phase change material(CPCM) with good thermal properties was prepared by adding various functional additives.At first,the sodium acetate trihydrate-acetamide binary mixture was prepared and the melting point was adjusted using acetamide.Then the binary mixture was incorporated into expanded graphite to synthesize a novel shape-stabilized CPCM.The thermophysical properties of the resultant shape-stabilized CPCM were systematically investigated.The microscopic morphology and chemical structure of the obtained shape-stabilized CPCM were characterized and analyzed.The experiment results pointed out that acetamide could effectively lower the melting point of sodium acetate trihydrate.The obtained shape-stabilized CPCM modified with additional 18%(mass fraction) acetamide and 12%(mass fraction) expanded graphite exhibited good shape stability and thermophysical characteristics:a low supercooling degree of 1.75℃ and an appropriate melting temperature of 40.77℃ were obtained;the latent heat of 151.64 kJ/kg and thermal conductivity of 1.411 W/(m·K) were also satisfactory.Moreover,after 50accelerated melting-freezing cycles,the obtained shape-stabilized CPCM represented good thermal reliability.

关键词： sodium acetate trihydrate melting point modification agent expanded graphite shape stability thermal conductivity enhancement

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Shouhui Tongbian Capsule in treatment of constipation: Treatment and mechanism development

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Chinese Herbal Medicines 2024年第2期16卷 239-247页

作者： Liping Gong Hang Du Xin Guo Jianchao Li xiaomin Zhu Xianhui Shen Zhiyan huang Kaiyi Wu Guimin Zhang Rong Sun The Second Hospital of Shandong University Jinan 250033China State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine Lunan Pharmaceutical Group Co.Ltd.Linyi 276006China Tianjin University of Traditional Chinese Medicine Tianjin 301617China Shandong University of Traditional Chinese Medicine Jinan 250355China Advanced Medical Research Institute Shandong UniversityJinan 250012China

Constipation is common in the diseases of the digestive system in clinics.With the change in diet structure and the increase in life pressure,the prevalence rate increases year by year.In traditional Chinese medicine(TCM),the location of the disease of constipation is in the large intestine,which is related to the dysfunction of lung,spleen,liver,kidney and other viscera.Its pathogenesis is conductive dysfunction of large intestine.Based on the theory,Shouhui Tongbian Capsule(SHTB)is composed of eight traditional Chinese medicines,including Polygoni multiflori Radix(Heshouwu in Chinese),Aloe(Luhui in Chinese),Cassiae Semen(Juemingzi in Chinese),Ginseng Radix et Rhizoma(Renshen in Chinese),Lycii Fructus(Gouqizi in Chinese),Asini Corii Colla(Ejiao in Chinese),Aurantii Fructus Immaturus(Zhishi in Chinese),and Atractylodis Macrocephalae Rhizoma(Baizhu in Chinese),which could help to release excessive turbid,and nourishing yin and supplementing qi in the treatment.This study has been carried out to review the latest advances of SHTB in the treatment of constipation.The results showed that significant effect of SHTB was found in the treatment of constipation,such as functional constipation,and constipation associated with tumor chemotherapy,colitis,type 2 diabetes and chronic cardiac failure.Besides,obvious adverse reactions were not observed.SHTB could effectively treat five types of constipation,provide direction for the future exploration of SHTB in the treatment of other types of constipation。

关键词： constipation gastrointestinal hormones interstitial cells of cajal intestinal fluid secretion intestinal motility Shouhui Tongbian Capsule

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Paenarthrobacter nitroguajacolicus can promote cucumber growth and control cucumber corynespora leaf spot

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Frontiers of Agricultural Science and Engineering 2024年第3期11卷 485-498页

作者： Min LI Yahui huang xiaomin DONG Xu ZHANG Qing MA College of Horticulture South China Agricultural University State Key Laboratory of Crop Stress Biology for Arid Areas/College of Plant Protection Northwest A&F University College of Forestry and Landscape Architecture South China Agricultural University

Currently, the disease control in cucumber mainly depends on agrochemicals,which is not an environmentally benign strategy. Biocontrol bacteria not only resist plant pathogens but also promote plant growth, which is ecofriendly and sustainable option. A biocontrol bacterial strain BJ-5 was screened using Corynespora cassiicola as the target pathogen, and BJ-5 was determined to be Paenarthrobacter nitroguajacolicus by morphological and molecular methods.The effect of BJ-5 on C. cassiicola was studied, including the spore germination, cell membrane permeability and infected cucumbers. BJ-5 inhibited the germination of C. cassiicola spores in vitro and led to atrophy and deformation of the C. cassiicola budding tubes. BJ-5 caused the relative extracellular conductivity of C. cassiicola mycelia to increase compared with the control. Additionally, BJ-5 reduced the severity of cucumber corynespora leaf spot of cucumber infected with C. cassiicola. The inhibition efficacy of BJ-5 suspension as a foliar spray against cucumber corynespora leaf spot reached 63% inhibition, which is higher than a 5000-fold dilution of Luna-Son SC fungicide. In addition, BJ-5 was tested on the emergence of cucumber seedlings, recording the biomass and photosynthesis of cucumber during the growth period. BJ-5 at 1.5 × 10～5 CFU·m L-1promoted the germination of cucumber seeds and increased biomass and photosynthesis at the adult plant stage. Also, the secondary metabolites of BJ-5 were determined. BJ-5 could produce chitinases, siderophore, cellulase, amylase and protease in the respective medium. Finally, adaptation assay of BJ-5 showed good salt tolerance and good adaptability in alkaline conditions, and that BJ-5 retains inhibition of fungi activity at higher temperatures. This is the first report of the biocontrol by P. nitroguajacolicus with antagonism to C. cassiicola and promote cucumber growth. This study indicates that P. nitroguajacolicus may serve as potential biocontrol agents against cucumber corynespora leaf spot fungus.

关键词： Adaptability antagonistic bacterium disease resistance growth promotion secondary metabolite

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FGF4 protects the liver from immune-mediated injury by activating CaMKKβ-PINK1 signal pathway to inhibit hepatocellular apoptosis

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Acta Pharmaceutica Sinica B 2024年第4期14卷 1605-1623页

作者： Zhifeng huang Tongtong Pan Liang Xu Lu Shi Xiong Ma Liya Zhou Luyao Wang Jiaojiao Wang Guoqing Zhu Dazhi Chen Lingtao Song xiaomin Pan Xiaodong Wang Xiaokun Li Yongde Luo Yongping Chen Hepatology Diagnosis and Treatment Center Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseasesthe First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325035China Oujiang Laboratory(Zhejiang Lab for Regenerative Medicine Vision and Brain Health)&School of Pharmaceutical SciencesWenzhou Medical UniversityWenzhou 325035China School of Laboratory Medicine and Life Sciences Wenzhou Medical University&Key Laboratory of Laboratory MedicineMinistry of EducationWenzhou Medical UniversityWenzhou 325035China Division of Gastroenterology and Hepatology Key Laboratory of Gastroenterology and HepatologyMinistry of HealthState Key Laboratory for Oncogenes and Related GenesRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200001China Hangzhou Medical College Hangzhou 311300China

Immune-mediated liver injury (ILI) is a condition where an aberrant immune response due to various triggers causes the destruction of hepatocytes. Fibroblast growth factor 4 (FGF4) was recently identified as a hepatoprotective cytokine;however, its role in ILI remains unclear. In patients with autoimmune hepatitis (type of ILI) and mouse models of concanavalin A (ConA)- or S-100-induced ILI, we observed a biphasic pattern in hepatic FGF4 expression, characterized by an initial increase followed by a return to basal levels. Hepatic FGF4 deficiency activated the mitochondria-associated intrinsic apoptotic pathway, aggravating hepatocellular apoptosis. This led to intrahepatic immune hyper-reactivity, inflammation accentuation, and subsequent liver injury in both ILI models. Conversely, administration of recombinant FGF4 reduced hepatocellular apoptosis and rectified immune imbalance, thereby mitigating liver damage. The beneficial effects of FGF4 were mediated by hepatocellular FGF receptor 4, which activated the Ca^(2+)/calmodulin-dependent protein kinasekinase 2 (CaMKKβ) and its downstream phosphatase and tensin homologue-induced putative kinase 1 (PINK1)-dependent B-cell lymphoma 2-like protein 1-isoform L (Bcl-XL) signalling axis in the mitochondria. Hence, FGF4 serves as an early response factor and plays a protective role against ILI, suggesting a therapeutic potential of FGF4 and its analogue for treating clinical immune disorder-related liver injuries.

关键词： Fibroblast growthfactor 4 Fibroblast growth factor receptor 4 Immune liver injury Ca^(2+)/Calmodulin dependent protein

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Ergonomic Reliability Assessment of VDT Systemfor Operation Design Based on Improved BPNN and HCR under Special Circumstances

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Computer Modeling in Engineering & Sciences 2023年第7期136卷 685-707页

作者： Xin Liu Zheng Liu Zhilin huang Mingyu Ling Kangchao Lin Pengqing Chen xiaomin huang Yujia Zhai Institute of Industrial Design Guangzhou UniversityGuangzhou510006China School of Mechanical and Electrical Engineering Guangzhou UniversityGuangzhou510006China

Ergonomic reliability plays a significant role in the safe operation of devices.With the spread of infectious diseases around the world,in work environments with high loads and high infection rates,medical staff work in a state of high self-protection.The use of visual display terminal(VDT)for medical equipment has undergone fundamental changes,and the traditional medical equipment human-machine interface design needs to be improved.After the completion of design and development,a VDT design enters the experimental testing stage,which has significant limitations for simulating the work of medical staff in the high-load and high-infection environments.The testing cost is high,and subjects face harsh conditions;thus,an ergonomic reliability model that can predict the use of VDT in such special high-infection and high-load circumstances must be established.An ergonomic reliability model based on an improved backpropagation neural network(BPNN)and human cognition reliability(HCR)is proposed for predicting and evaluating operation flows according tomedical equipment VDTs.Firstly,a small data sample can be used to train BPNN to generate a network that can ensure suitable accuracy.To prevent the model from falling into local optimal solutions,the bat algorithm is introduced to improve the BPNN.Compared to a traditional BPNN,the superiority of the improved BPNN is clearly demonstrated.Secondly,the HCR method is used to analyze and highlight changes in the human factor reliability of VDTs for medical equipment in different time processes and operating processes according to BPNN prediction results,to provide a reference for selecting the optimalmethod.Finally,the validity and availability of the proposedmethod are verified through an eye tracker experiment and statistical analysis results.

关键词： Ergonomic reliability BPNN HCR operation design VDT HMI

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