Search results for: Huijun Wu

Items from 1 to 20 out of 107 results

article

A type VI secretion system effector TseG of Pantoea ananatis is involved in virulence and antibacterial activity

Xiaozhen Zhao, Lu Gao, Qurban Ali, Chenjie Yu, more

Molecular Plant Pathology > 25 > 3 > n/a - n/a

The type VI secretion system (T6SS) of many gram‐negative bacteria injects toxic effectors into adjacent cells to manipulate host cells during pathogenesis or to kill competing bacteria. However, the identification and function of the T6SS effectors remains only partly known. Pantoea ananatis, a gram‐negative bacterium, is commonly found in various plants and natural environments, including water...

article

Broad‐spectrum antagonistic potential of Bacillus spp. volatiles against Rhizoctonia solani and Xanthomonas oryzae pv. oryzae

Qurban Ali, Abdur Rashid Khan, Sheng Tao, Faheem Uddin Rajer, more

Physiologia Plantarum > 175 > 6 > n/a - n/a

Rhizoctonia solani and Xanthomonas oryzae pv. oryzae (Xoo) are the two major diseases affecting the quality and quantity of rice production. In the current study, volatile organic compounds (VOCs) of Bacillus spp. were used as green biocontrol agents for plant diseases. In in vitro experiments, Bacillus spp. FZB42, NMTD17, and LLTC93‐VOCs displayed strong antimicrobial volatile activity with inhibition...

article

degQ associated with the degS/degU two‐component system regulates biofilm formation, antimicrobial metabolite production, and biocontrol activity in Bacillus velezensis DMW1

Chenjie Yu, Junqing Qiao, Qurban Ali, Qifan Jiang, more

Molecular Plant Pathology > 24 > 12 > 1510 - 1521

The gram‐positive bacterium Bacillus velezensis strain DMW1 produces a high level of antimicrobial metabolites that can suppress the growth of phytopathogens. We investigated the mechanism used by degQ and the degS/degU two‐component system to regulate the biocontrol characteristics of DMW1. When degQ and degU were deleted, the biofilm formation, cell motility, colonization activities, and antifungal...

article

A bottom‐up modeling of metabolism of the residential building system in China toward 2050

Ling Zhang, Qingqing Lu, Zengwei Yuan, Songyan Jiang, more

Journal of Industrial Ecology > 27 > 2 > 587 - 600

This study predicted the metabolic process of the residential building system in China toward 2050 by addressing the detailed provincial patterns and urban–rural disparity and the characterizing metabolisms of building materials in detail. The results show that after a rapid growth during 1980–1990, the in‐use stocks of residential buildings in China are expected to slow down in around 2030, reaching...

article

Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea

Kailin Liu, Jun Nishioka, Bingzhang Chen, Koji Suzuki, more

Limnology and Oceanography > 68 > 3 > 649 - 665

Phytoplankton growth and microzooplankton grazing are two critical processes in marine food webs, but they remain understudied in the vast area of the subarctic western Pacific and the Bering Sea. In this study, we measured phytoplankton growth and microzooplankton grazing rates in these less‐explored regions to demonstrate their spatial patterns and investigate underlying mechanisms driving the planktonic...

article

High killing rate of nematode and promotion of rice growth by synthetic volatiles from Bacillus strains due to enhanced oxidative stress response

Qurban Ali, Chenjie Yu, Yujie Wang, Tao Sheng, more

Physiologia Plantarum > 175 > 1 > n/a - n/a

The plant parasitic nematode Aphelenchoides besseyi is a major pest that poses serious threats to different vegetables and crop plants. In the present study, volatiles isolated from Bacillus spp. were utilized as green biocontrol agents to overcome nematodes. In in vitro experiment, Bacillus spp. GBSC56, SYST2, and FZB42 showed the strongest nematicidal activity with killing rates of 80.78%, 75.69%,...

article

An avirulent Ralstonia solanacearum strain FJAT1458 outcompetes with virulent strain and induces tomato plant resistance against bacterial wilt

Xuefang Zheng, Rongfeng Xiao, Meichun Chen, Huijun Wu, more

Pest Management Science > 78 > 11 > 5002 - 5013

BACKGROUND Bacterial wilt (BW) caused by Ralstonia solanacearum (RS) is considered as one of the most destructive plant diseases. An avirulent strain of RS, FJAT1458, is a potential biocontrol agent of BW. In this study, the mechanism of FJAT1458 against BW was evaluated. RESULTS FJAT1458 was tagged with the red fluorescent protein gene, and the resulting strain was named as FJAT1458‐RFP. When...

article

Altered microbial resource limitation regulates soil organic carbon sequestration based on ecoenzyme stoichiometry under long‐term tillage systems

Xiaojun Song, Jingyu Li, Xiaotong Liu, Guopeng Liang, more

Land Degradation & Development > 33 > 15 > 2795 - 2808

Soil microbial metabolism is critically important for regulating soil carbon (C) sequestration. However, how soil organic C (SOC) stock responds to the changes in microbial resource limitation and microbial C use efficiency (CUE) under long‐term tillage system remains uncertain. Soil samples were randomly collected from a long‐term (19 years) tillage experiment growing winter wheat with three treatments...

article

Properties of direct coal liquefaction residue water slurry: Effect of mineral matters by acid‐leaching demineralization

Dongmei Lv, Huijun Wu, Chenyong Wang, Zhiqi Zheng, more

Asia‐Pacific Journal of Chemical Engineering > 17 > 3 > n/a - n/a

The effects of demineralization treatment by acid leaching on the properties of direct coal liquefaction residue water slurry (DCLRWS) were investigated. The demineralized direct coal liquefaction residue (DCLR) with different mineral matter content and composition was prepared by leaching with the solution of HCl/HF, HCl, and HF, designated as DEM‐1, DEM‐2, and DEM‐3, respectively. After demineralization,...

article

NLRP3 inflammasome inhibitor ameliorates ischemic stroke by reprogramming the phenotype of microglia/macrophage in a murine model of distal middle cerebral artery occlusion

Hongning Jia, Xiaoyuan Qi, Lan Fu, Huijun Wu, more

Neuropathology > 42 > 3 > 181 - 189

Stroke is one of the leading causes of death and disability worldwide. NLRP3 inflammasome has an essential role in the neuropathology of stroke. Recent studies report that shifting the microglial M1 phenotype to the M2 phenotype protects against ischemic stroke. In the present study, the precise effects of Tranilast, a NLPR3 inflammasome inhibitor, on stroke were evaluated. We established a murine...

article

Lysobacter enzymogenes antagonizes soilborne bacteria using the type IV secretion system

Xi Shen, Bingxin Wang, Nianda Yang, Lulu Zhang, more

Environmental Microbiology > 23 > 8 > 4673 - 4688

Soil microbiome comprises numerous microbial species that continuously interact with each other. Among the modes of diverse interactions, cell–cell killing may play a key role in shaping the microbiome composition. Bacteria deploy various secretion systems to fend off other microorganisms and Type IV Secretion System (T4SS) in pathogenic bacteria was shown to function as a contact‐dependent, inter‐bacterial...

article

Cold‐adapted Bacilli isolated from the Qinghai–Tibetan Plateau are able to promote plant growth in extreme environments

Huijun Wu, Qin Gu, Yongli Xie, Zhiying Lou, more

Environmental Microbiology > 21 > 9 > 3505 - 3526

Nearly 1400 Bacillus strains growing in the plant rhizosphere were sampled from different sites on the Qinghai–Tibetan Plateau. Forty‐five of the isolates, selected due to their biocontrol activity, were genome‐sequenced and their taxonomic identification revealed that they were representatives of the Bacillus subtilis species complex (20) and the Bacillus cereus group (9). Majority of the remaining...

article

Experimental Study on the Corrosion of Buried Pipeline in Coastal Area Under the Interference of Stray Current

Fan Xu, Huijun Wu, Xin Hu, Zhong-Chang Wang

Transactions on Electrical and Electronic Materials > 2019 > 20 > 5 > 431-436

To explore the effect of stray current and the concentration of Cl⁻ on corrosion of buried pipeline in coastal area, in this paper, indoor electrochemical experiments were used to change the voltage of AC interference. The electrochemical parameters such as zero current potential error, Tafel constant and corrosion current density error of the polarization curves obtained in three different concentrations...

article

Heat and mass transfer performance of wet air flowing around circular and elliptic tube in plate fin heat exchangers for air cooling

Shiquan He, Xiaoqing Zhou, Feng Li, Huijun Wu, more

Heat and Mass Transfer > 2019 > 55 > 12 > 3661-3673

Fin and tube heat exchangers are widely used in air conditioning. In this study the effect of tube shape on air-side heat and mass performance was experimentally and numerically investigated under typical operating condition, varying both dry bulb temperature and air flow velocity. The experimental results showed that the dry-bulb temperature has little impact on sensible heat transfer rate, whereas...

article

Soil biochemical parameters in the rhizosphere contribute more to changes in soil respiration and its components than those in the bulk soil under nitrogen application in croplands

Guopeng Liang, Andong Cai, Huijun Wu, Xueping Wu, more

Plant and Soil > 2019 > 435 > 1-2 > 111-125

Aims Soil respiration (RS), which is the second largest carbon flux between the atmosphere and terrestrial ecosystems, has significant impact on atmospheric CO₂ concentration and climatic dynamics. Nitrogen (N) fertilizer has been heavily applied in agroecosystems at the global scale for high crop yields, and plays a major role in regulating RS. Although the respective response of soil biochemical...

article

Quantitative research on the influence of particle size and filling thickness on aerogel glazing performance

Yajun Lv, Huijun Wu, Yanchen Liu, Yu Huang, more

Energy and Buildings > 2018 > 174 > C > 190-198

Silica aerogel has attracted increasing interest in building glazing for energy efficiency owing to its light weight, ultra-low thermal conductivity and high visual transmittance. In this study, four types of aerogel granules with various average particle sizes (viz. 0.41, 1.03, 1.64 and 2.54 mm) were prepared by using a low-cost ambient pressure drying method. Three gaps between two pieces of glass...

article

Occupational functional plasticity revealed by brain entropy: A resting‐state fMRI study of seafarers

Nizhuan Wang, Huijun Wu, Min Xu, Yang Yang, more

Human Brain Mapping > 39 > 7 > 2997 - 3004

Recently, functional magnetic resonance imaging (fMRI) has been increasingly used to assess brain function. Brain entropy is an effective model for evaluating the alteration of brain complexity. Specifically, the sample entropy (SampEn) provides a feasible solution for revealing the brain's complexity. Occupation is one key factor affecting the brain's activity, but the neuropsychological mechanisms...

article

The Stability Analysis of Lining Structure of Water Diversion Tunnel of Hydropower in Strong Earthquake Area

Huijun Wu, Zhongchang Wang

Geotechnical and Geological Engineering > 2019 > 37 > 1 > 155-161

To obtain dynamic stability of lining structure of water diversion tunnel under the 100 years beyond 1% probability earthquake condition, the three-dimensional dynamic analysis for water diversion tunnel of large hydropower station was conducted by the dynamic time history method. The distribution of plastic zone and response characteristics of the stress and the displacement and acceleration of each...

article

The Mechanism Study of Cracks Propagation of Different Floor Strata Combinations Under Mining

Huijun Wu, Zhongchang Wang, Chuan Wang

Geotechnical and Geological Engineering > 2018 > 36 > 6 > 3743-3749

To obtain the water resistance performance of floor strata under different rock layers and fracture combination, the two cracks’ propagation path under different situations was given by using minimum plastic zone theory according to the change of the fracture factor and the plastic strain of different strata combination cracks under the influence of fault, water pressure and mining. The shortest distance...

article

Optimization of thermal management system for Li-ion batteries using phase change material

Yantong Li, Yaxing Du, Tao Xu, Huijun Wu, more

Applied Thermal Engineering > 2018 > 131 > C > 766-778

This study presents an optimization method of Li-ion battery thermal management system (BTMS) using phase change material (PCM). The optimization objective is to minimize the mass of PCM. Two design constraints should be satisfied during the optimization process: (1) the maximum temperature difference in the BTMS should not exceed the threshold value; (2) the desired working time of maintaining the...

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INFONA - science communication portal

Search results for: Huijun Wu

A type VI secretion system effector TseG of Pantoea ananatis is involved in virulence and antibacterial activity

Broad‐spectrum antagonistic potential of Bacillus spp. volatiles against Rhizoctonia solani and Xanthomonas oryzae pv. oryzae

degQ associated with the degS/degU two‐component system regulates biofilm formation, antimicrobial metabolite production, and biocontrol activity in Bacillus velezensis DMW1

A bottom‐up modeling of metabolism of the residential building system in China toward 2050

Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea

High killing rate of nematode and promotion of rice growth by synthetic volatiles from Bacillus strains due to enhanced oxidative stress response

An avirulent Ralstonia solanacearum strain FJAT1458 outcompetes with virulent strain and induces tomato plant resistance against bacterial wilt

Altered microbial resource limitation regulates soil organic carbon sequestration based on ecoenzyme stoichiometry under long‐term tillage systems

Properties of direct coal liquefaction residue water slurry: Effect of mineral matters by acid‐leaching demineralization

NLRP3 inflammasome inhibitor ameliorates ischemic stroke by reprogramming the phenotype of microglia/macrophage in a murine model of distal middle cerebral artery occlusion

Lysobacter enzymogenes antagonizes soilborne bacteria using the type IV secretion system

Cold‐adapted Bacilli isolated from the Qinghai–Tibetan Plateau are able to promote plant growth in extreme environments

Experimental Study on the Corrosion of Buried Pipeline in Coastal Area Under the Interference of Stray Current

Heat and mass transfer performance of wet air flowing around circular and elliptic tube in plate fin heat exchangers for air cooling

Soil biochemical parameters in the rhizosphere contribute more to changes in soil respiration and its components than those in the bulk soil under nitrogen application in croplands

Quantitative research on the influence of particle size and filling thickness on aerogel glazing performance

Occupational functional plasticity revealed by brain entropy: A resting‐state fMRI study of seafarers

The Stability Analysis of Lining Structure of Water Diversion Tunnel of Hydropower in Strong Earthquake Area

The Mechanism Study of Cracks Propagation of Different Floor Strata Combinations Under Mining

Optimization of thermal management system for Li-ion batteries using phase change material

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