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| 1 | Decay stages and meteorological factors affect microbial community during leaf litter in situ decomposition显示文摘Litter microorganisms play a crucial role in the biological decomposition in forest ecosystems;however,the coupling effect of meteorological and substrate changes on it during the different stages of leaf decomposition in situ remains unclear.Hence,according to meteorological factors dynamics,a one-year field litter of Quercus wutaishanica in situ decomposition experiment was designed for four decay stages in a warm temperate forest.Microbial community composition was characterized using Illumina sequencing of fungal ITS and bacterial 16S genes.Bacterial(6.6)and fungal(3.6)Shannon indexes were the largest after 125 days’litter decomposition(October).The relative abundance of Acidobacteria after 342 days and Bacteroidetes after 125 days were 3 and 24 times higher than after 31 days,respectively.Some non-dominant species(bacteria:Firmicutes,Planctomycotes,and Verrucomicrobia;fungi:Chytridiomycota and Glomeromomycota)may be absent or present at different decomposition stages due to litter properties or meteorological factors.Chemoheterotrophy and aerobic-chemoheterotrophy were the dominant bacterial functional groups,and the dominant fungal functional groups were saprotrophs,pathotrophs,and symbiotrophs.Precipitation and relative humidity significantly affected bacteria.Temperature,sunlight intensity,and net radiation significantly affected fungi.Besides,among the relative contributions of changes in bacterial and fungal community structure,leaf litter properties alone explained the variation of 5.51%and 10.63%.Microbial diversity and decay stage directly affected the litter mass-loss rate,with meteorological factors(precipitation,relative humidity,air temperature,and sunlight intensity)being indirect.Our findings highlight the importance of microbial diversity for leaf litter decomposition and the influence of meteorological factors. | Haixin Zhang Yimei Huang Shaoshan An Quanchao Zeng Baorong Wang Xuejuan Bai Qian Huang | 2023 | Soil Ecology Letters2023,5,3: | 0 |
| 2 | Mechanism of C_(4)AF Content and Heat-curing Process on the Abrasion Resistance of High Ferrite Cement显示文摘Cement used in severe maritime environments must be attached with exceptional properties such as high sulfate resistance and abrasion strength.A sulfate resistant material typically used in marine engineering is high ferrite cement,which has been utilized in sulfate-rich environments.This study aims at exploring the effect of C_(4)AF and heat-curing on the abrasion resistance of high ferrite cement(HFC,C_(4)AF:14%-22%)in order to have a comprehensive understanding of this mechanism and promote the application of HFC in marine engineering.A new invention was designed for the abrasion resistance device by considering the sea-wave abrasion and seawater erosion in laboratory.The compressive strength and abrasion resistance of HFC were measured.Additionally,advanced analytical methods were used to explore the abrasion resistance mechanism of HFC,including X-ray fluorescence(XRF),X-ray diffraction(XRD),and thermogravimetric(TG)analyses,as well as mercury intrusion porosimetry(MIP).The results showed that HFC had the best abrasion resistance under appropriate heat-curing system that the curing temperature was 50℃and the hosting time was 4 hours,compared with PI(Portland cement)and LHC(low heat cement),meanwhile the abrasion resistance of HFC had a 62.4%increase when C_(4)AF content is increased from 14%to 22%.It can be ascribed that the content of portlandite is decreased due to the increase of C_(4)AF,which can reduce the portlandite assembled in ITZ(interfacial transition zone).It can also be ascribed that the DEF(delayed ettringite formation)is successfully avoided in HFC and the hydration degree of HFC can continue to be boosted under appropriate heat-curing system. | 邓青山 FENG Yuqiu ZENG Lang WANG Shuaike WEI Shaoshan 饶美娟 | 2022 | Journal of Wuhan University of Technology(Materials Science)2022,37,3: | 0 |
| 3 | An optimal medicinal and edible Chinese herbal formula attenuates particulate matter-induced lung injury through its anti-oxidative,anti-inflammatory and anti-apoptosis activities显示文摘Objective:Identifying novel strategies to prevent particulate matter(PM)-induced lung injury is crucial for the reduction of the morbidity of chronic respiratory diseases.The combined intervention represented by herbal formulae for simultaneously targeting multiple pathological processes can provide a more beneficial effect than the single intervention.The aim of this paper is therefore to design a safe and effective medicinal and edible Chinese herbs(MECHs)formula against PM-induced lung injury.Methods:PM-induced oxidative stress,inflammatory response and apoptosis A549 cell model were used to screen anti-oxidant,anti-inflammatory and anti-apoptotic MECHs,respectively.A network pharmacology method was utilized to rationally design a novel herbal formula.Ultra performance liquid chromatography-mass spectrometer was utilized to assess the quality control of MECHs formula.The excretion of magnetic iron oxide nanospheres of the MECHs formula was estimated in zebrafish.The MECH formula against PM-induced lung injury was investigated with mice experiments.Results:Five selected herbs were rationally designed to form a new MECH formula,including Citri Exocarpium Rubrum(Juhong),Lablab Semen Album(Baibiandou),Atractylodis Macrocephalae Rhizoma(Baizhu),Mori Folium(Sangye)and Polygonati Odorati Rhizoma(Yuzhu).The formula effectively promoted the magnetic iron oxide nanospheres excretion in zebrafish.The mid/high dose formula significantly prevented PM-induced lung damage in mice by enhancing the activity of SOD and GSH-Px,reducing the MDA and ROS level and attenuating the upregulation of pro-inflammatory cytokine(IL-6,IL-8,IL-1βand TNFa),down regulating the protein expression of NF-κB,STAT3 and Caspase-3.Conclusion:Our findings suggest that the effective MECHs formula will become a novel strategy for preventing PM-induced lung injury and provide a paradigm for the development of functional foods using MECHs. | Huan Zhang Jun Kang Wuyan Guo Fujie Wang Mengjiao Guo Shanshan Feng Wuai Zhou Jinnan Li Ayesha T.Tahir Shaoshan Wang Xinjun Du Hui Zhao Weihua Wang Hong Zhu Bo Zhang | 2023 | Chinese Herbal Medicines2023,15,3: | 0 |
| 4 | Current Situation and Countermeasures of Platycodon grandiflorus Industry Development in Shandong Province显示文摘In order to promote the green,healthy and sustainable development of Platycodon grandiflorus industry,the current situations of P.grandiflorus industry development in Shandong Province were analyzed.That is,an advantageous area has been gradually formed;product processing is diversified;industrialization development pattern is gradually emerging.Three problems in the development of P.grandiflorus industry were deeply analyzed.That is,it is difficult to control product quality;the problem of soil obstacles to continuous cropping is serious;the problem of talent shortage is prominent.Four countermeasures for the next development were put forward as follows:increasing government support,strengthening the construction of talent team,implementing crop rotation or intercropping,and increasing technology promotion. | Shaoshan WANG Lixin SUN Yu SHAN Hongfeng HAN | 2022 | Asian Agricultural Research2022,14,5: | 0 |
| 5 | Investigation on the Resources of Paris Polyphylla var.yunnanensis显示文摘In this study,the resource distribution,morphological characteristics,artificial cultivation and market circulation of Paris Polyphylla var.yunnanensis and its polygerm varieties in Yunnan were investigated by referring to the research literature,field investigation and our planting experience.It is found that P.polyphylla var.yunnanensis is widely distributed in Yunnan Province,realizing large-scale artificial cultivation,while the wild resources of polygerm varieties are almost on the verge of extinction and are in urgent need of protection. | Shicai WU Guo LI Qiping WANG Wenli YANG Xuemei CHEN Jian FENG Ganghua LI Shaoshan ZHANG | 2020 | Medicinal Plant2020,11,6: | 0 |
| 6 | Differences Between Solitary Cells and Colonial Cells in the Heteromorphic Life Cycle of Phaeocystis globosa: Morphology, Physiology, and Transcriptome显示文摘Large-scale blooms of Phaeocystis globosa have caused serious damage to marine ecosystems in coastal waters of China.Phaeocystis blooms depend on the competitive advantage of their heteromorphic life history:colony formation has the benefit of resisting herbivory by zooplankton,and solitary cells can absorb nutrients rapidly.In order to better understand the mechanisms underlying the metabolic differences between the two types of cells,morphological observations,rapid light curve analysis,fatty acid profiling,and transcriptome assessment were conducted in the laboratory.The rapid light curve of colonial cells was higher than that of solitary cells,which indicated that colonial cells had higher CO2 fixation capacity.The fatty acid level of colonial cells was evidently lower than that of solitary cells,which is consistent with down-regulated synthesis of fatty acids and up-regulated degradation of fatty acids in the transcriptome.ATP-binding cassette transporters,the TCA cycle,and biosynthesis of exopolysaccharides(EPS)also displayed obvious differences.In summary,colonial cells have stronger carbon fixation capacity.They do not synthesize fatty acids as energy storage materials but secrete EPS,which might be one of the mechanisms of colony formation.Here we present a physiological and molecular overview of the differences between solitary cells and colonial cells and thereby provide further insight to help unravel the mechanisms that help Phaeocystis globosa adapt to different environments. | LIANG Dayong WANG Xiaodong HUO Yiping WANG Yan LI Shaoshan | 2021 | Journal of Ocean University of China2021,20,4: | 0 |
| 7 | Developmental Threshold Temperature and Effective Accumulated Temperature of Potosia brevitarsis Lewis显示文摘[Objective]The paper was to study the relationship between temperature and development of Potosia brevitarsis Lewis.[Methods]Six constant temperatures(21,24,27,30,33 and 36℃)were set in the laboratory to study developmental threshold temperature and effective accumulated temperature of P.brevitarsis.[Result]The developmental durations of various states of P.brevitarsis were shortened with the increasing temperature ranged from 21℃to 36℃;the developmental rates were accelerated with the increasing temperature.The developmental threshold temperatures of egg,larva,pupa and pre-oviposition of adult were estimated to be 12.79,9.15,14.86 and 13.80℃,respectively;the effective accumulated temperature were 136.25,3 031.31,308.92 and 98.35 d·℃,respectively.The developmental threshold temperature and effective accumulated temperature for one complete generation were 9.96℃and 3 628.73 d·℃,respectively.Combined with meteorological data,the theoretical generation number of P.brevitarsis occurred in Shihezi was presumed to be one per year,which was basically coincided with actual occurrence generations in fields.[Conclusion]The paper provided theoretical basis for effective control against P.brevitarsis. | Liu Zheng Sun Yan Chen Bing Zhang Xuekun Wang Shaoshan Li Guoying | 2013 | Plant Diseases and Pests2013,4,5: | 0 |
| 8 | Biocompatible and breathable healthcare electronics with sensing performances and photothermal antibacterial effect for motion-detecting显示文摘With the booming development of smart wearable devices,flexible multifunctional composites with high sensitivity and well health therapy have evoked great interest for next-generation healthcare electronics.However,the weak biocompatibility,low breathability,and narrow sensing range greatly hinder the development of healthcare sensors.Herein,a porous,flexible and conductive MXene/Polydimethylsiloxane/Polydopamine/Polyurethane Sponge(MXene/PDMS/PDA/PU)nanocomposite is developed as a promising motion-detecting device with good flexibility,breathability,sensing performance,photothermal therapy and antibacterial activity.Benefiting from the porous structure and biocompatible surface,this multifunctional sensor is further fabricated into a diagnostic and therapeutic system for monitoring human body motion and performing hot therapy/antibacterial treatment in the application of sports injury site.Moreover,both the wireless smart insole and cushion are constructed to gait monitoring and sit position detecting.This multifunctional hybrid sponge not only demonstrates great potential for motion monitoring sensors but also exhibits wide potential in wearable medical assistive and therapeutic systems. | Xinyi Wang Yan Tao Shaoshan Pan Xue Fang Congcong Lou Yunqi Xu Jianpeng Wu Min Sang Liang Lu Xinglong Gong Tianzhi Luo Shouhu Xuan | 2022 | npj Flexible Electronics2022,6,1: | 0 |