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| 1 | Variations in stem radii of Larix principis-rupprechtii to environmental factors at two slope locations in the Liupan Mountains,northwest China显示文摘Relationships between stem growth and climatic and edaphic factors,notably air temperatures and soil moisture for different slopes,are not completely understood.Stem radial variations were monitored at the bottom and top slope positions in a Larix principis-rupprechtii plantation during the 2017 and 2018 growing seasons.Total precipitation during the growing season in 2017 and 2018 was 566 mm and 728 mm,respectively.Stem contractions typically occurred after mid-morning followed by swelling in the late afternoon in both plots,reflecting the diurnal cycle of water uptake and loss.Trees at the two locations showed the same growth initiation(mid-May)because of the small differences in air and soil temperatures.There were no significant differences in cumulative stem radial growth between the bottom plot(1.57±0.34 mm)and the top plot(1.55±0.26 mm)in 2018.However,in 2017,the main growth period of the bottom plot ceased 17 days earlier than in the top plot,while cumulative seasonal growth of the bottom plot(1.08±0.25 mm)was significantly less than the top plot(1.54±0.43 mm).Maximum daily stem shrinkage was positively correlated with air and soil temperatures,solar radiation,vapor pressure deficits,and negatively correlated with volumetric soil moisture content.The maximum daily shrinkage reflected transpiration rates as affected by environmental factors.Daily radial stem increment was correlated with precipitation and volumetric soil moisture in both years,but with air temperatures only in 2017.The seasonal growth of L.principis-rupprechtii Mayr thus shows interannual dynamics,while precipitation constitutes a key driving factor. | Jing Ma Jianbin Guo Yanhui Wang Zebin Liu Di Gao Liu Hong Ziyou Zhang | 2021 | Journal of Forestry Research2021,32,2: | 6 |
| 2 | Orbital angular momentum mode logical operation using optical diffractive neural network显示文摘Optical logical operations demonstrate the key role of optical digital computing,which can perform general-purpose calculations and possess fast processing speed,low crosstalk,and high throughput.The logic states usually refer to linear momentums that are distinguished by intensity distributions,which blur the discrimination boundary and limit its sustainable applications.Here,we introduce orbital angular momentum(OAM)mode logical operations performed by optical diffractive neural networks(ODNNs).Using the OAM mode as a logic state not only can improve the parallel processing ability but also enhance the logic distinction and robustness of logical gates owing to the mode infinity and orthogonality.ODNN combining scalar diffraction theory and deep learning technology is designed to independently manipulate the mode and spatial position of multiple OAM modes,which allows for complex multilight modulation functions to respond to logic inputs.We show that few-layer ODNNs successfully implement the logical operations of AND,OR,NOT,NAND,and NOR in simulations.The logic units of XNOR and XOR are obtained by cascading the basic logical gates of AND,OR,and NOT,which can further constitute logical half-adder gates.Our demonstrations may provide a new avenue for optical logical operations and are expected to promote the practical application of optical digital computing. | PEIPEI WANG WENJIE XIONG ZEBIN HUANG YANLIANG HE ZHIQIANG XIE JUNMIN LIU HUAPENG YE YING LI DIANYUAN FAN SHUQING CHEN | 2021 | Photonics Research2021,9,10: | 5 |
| 3 | Chemical Characteristics and Environmental Records of a Snow-Pit at the Glacier No.12 in the Laohugou Valley, Qilian Mountains显示文摘In June 2006, samples were collected from a 90 cm snow-pit at an elevation of 5 040 m a.s.l. in the northern branch firn basin of the Glacier No. 12, Laohugou Valley, in the western part of Qilian Mountain, China. Oxygen isotopes(δ18O) and major soluble ions were measured. Results showed that Ca2+ is the dominant cation, and SO42- is the dominant anion. All major ions have close positive correlations with eachother except NO3- and NH4+. δ18O show positive correlation with air temperature. The method of correlation analysis, sea-salt ion tracer and trend analysis were used to determine the source of the chemical components. The correlation analysis and HYSPLIT backward trajectory analysis suggest that atmospheric soluble dust species dominate the chemical signature. | Xiaoqing Cui Jiawen Ren Xiang Qin Weijun Sun Guangming Yu Zebin Wang Weigang Liu | 2014 | Journal of Earth Science2014,25,2: | 4 |
| 4 | Modification of NiCoCrAlY with Pt: Part Ⅱ. Application in TBC with pure metastable tetragonal(t’) phase YSZ and thermal cycling behavior显示文摘A thermal barrier coating system comprising Pt-modified NiCoCrAlY bond coating and nanostructured 4mol.% yttria stabilized zirconia(4YSZ, hereafter) top coat was fabricated on a second generation Ni-base superalloy. Thermal cycling behavior of NiCoCrAlY-4 YSZ thermal barrier coatings(TBCs) with and without Pt modification was evaluated in ambient air at 1100?C up to 1000 cycles, aiming to investigate the effect of Pt on formation of thermally grown oxide(TGO) and oxidation resistance. Results indicated that a dual layered TGO, which consisted of top(Ni,Co)(Cr,Al)_2O_4 spinel and underlying α-Al_2O_3, was formed at the NiCoCrAlY/4 YSZ interface with thickness of 8.4μm, accompanying with visible cracks at the interface. In contrast, a single-layer and adherent α-Al_2O_3 scale with thickness of 5.6μm was formed at the interface of Pt-modified NiCoCrAlY and 4 YSZ top coating. The modification of Pt on NiCoCrAlY favored the exclusive formation of α-Al_2O_3 and the reduction of TGO growth rate, and thus could effectively improve overall oxidation performance and extend service life of TBCs. Oxidation and degradation mechanisms of the TBCs with/without Pt-modification were discussed. | Chuntang Yu He Liu Chengyang Jiang Zebin Bao Shenglong Zhu Fuhui Wang | 2019 | Journal of Materials Science & Technology2019,35,3: | 4 |
| 5 | Big data assimilation to improve the predictability of COVID-19显示文摘The global outbreak of COVID-19 requires us to accurately predict the spread of disease and decide how adopting corresponding strategies to ensure the sustainable development.Most of the existing infectious disease forecast-ing methods are based on the classical Susceptible-Infectious-Removed(SIR)model.However,due to the highly nonlinearity,nonstationarity,sensitivities to initial values and parameters,SIR type models would produce large deviations in the forecast results.Here,we propose a framework of using the Markov Chain Monte Carlo method to estimate the model parameters,and then the data assimilation based on the Ensemble Kalman Filter to update model trajectory by cooperating with the real time confirmed cases,so as to improve the predictability of the pan-demic.Based on this framework,we have developed a global COVID-19 real time forecasting system.Moreover,we suggest that big data associated with the spatiotemporally heterogeneous pathological characteristics,and social environment in different countries should be assimilated to further improve the COVID-19 predictability.It is hoped that the accurate prediction of COVID-19 will contribute to the adjustments of prevention and control strategies to contain the pandemic,and help achieve the SDG goal of“Good Health and Well-Being”. | Xin Li Zebin Zhao Feng Liu | 2020 | Geography and Sustainability2020,1,4: | 2 |
| 6 | The Enlightenment on Urban Ecological Construction by Research Progress of Sponge City in China Based on Literature Analysis显示文摘To quantitatively analyze main figure,field,agency and level of sponge city research in China,and clear research focus and hot spot in each year,by using the Full Text Database of Chinese Sci-tech Periodicals and other retrieval tools,the statistics and analysis of 3152 research literatures on sponge city published in domestic academic journals of 2004-2016 are conducted based on bibliometrics. It is found that since the concept of ' sponge city' was firstly proposed in 2012,development research of sponge city involves 40 subject fields and is mainly published in 32 kinds of journals,which is dominated by natural science research( 1427 literatures). Researchers are mainly from each college and university,some design institutes and Chinese Academy of Sciences. The research could play certain guidance significance for further research and construction of ecological city construction in China. | Jinzhu HUA Zebin CHEN Haotian WANG Zhiwei ZHENG Jingxiang HU Liyuan YAO Jiani LIU Yuyu ZHANG Lifang YIN Chunxu CHEN | 2017 | Asian Agricultural Research2017,9,5: | 2 |
| 7 | Characteristics of canopy interception and its simulation with a revised Gash model for a larch plantation in the Liupan Mountains, China显示文摘Canopy interception is a significant proportion of incident rainfall and evapotranspiration of forest ecosystems. Hence, identifying its magnitude is vital for studies of eco-hydrological processes and hydrological impact evaluation. In this study, throughfall, stemflow and interception were measured in a pure Larix principis-rupprechtii Mayr.(larch) plantation in the Liupan Mountains of northwestern China during the growing season(May–October) of 2015, and simulated using a revised Gash model. During the study period, the total precipitation was499.0 mm; corresponding total throughfall, stemflow and canopy interception were 410.3, 2.0 and 86.7 mm,accounting for 82.2, 0.4 and 17.4% of the total precipitation, respectively. With increasing rainfall, the canopy interception ratio of individual rainfall events decreased initially and then tended to stabilize. Within the study period, the simulated total canopy interception, throughfall and stemflow were 2.2 mm lower, 2.5 mm higher and0.3 mm lower than their measured values, with a relative error of 2.5, 0.6 and 15.0%, respectively. As quantified by the model, canopy interception loss(79%) mainly consisted of interception caused by canopy adsorption, while the proportions of additional interception and trunk interception were small. The revised Gash model was highly sensitive to the parameter of canopy storage capacity,followed by the parameters of canopy density and mean rainfall intensity, but less sensitive to the parameters of mean evaporation rate, trunk storage capacity, and stemflow ratio. The revised Gash model satisfactorily simulated the total canopy interception of the larch plantation within the growing season but was less accurate for some individual rainfall events, indicating that some flaws exist in the model structure. Further measures to improve the model's ability in simulating the interception of individual rainfall events were suggested. | Zebin Liu Yanhui Wang Ao Tian Yu Liu Ashley A.Webb Yarui Wang Haijun Zuo Pengtao Yu Wei Xiong Lihong Xu | 2018 | Journal of Forestry Research2018,29,1: | 2 |
| 8 | Influencing Factors of Fine Root Production and Turnover in Forest Ecosystem显示文摘Fine roots(≤2mm in diameter) play important roles in carbon balance and nutrient recycling in forest ecosystem.With the development of the study on global carbon cycle,fine roots have attracted considerable attention as the main source of soil carbon in forest ecosystem.On the basis of synthetic analysis of research reports in domestic and foreign literatures,we summarized and elaborated the major abiotic and biotic factors that control fine root production and turnover.The environmental factors included soil nutrient,soil temperature,soil moisture and the CO2 concentration.Soil organisms,fine root morphology and forest stand characteristics were discussed as biotic factors in this paper.Finally,we defined the problems arising in root system research and prospected the future research direction. | Wang Ruili Cheng Ruimei Xiao Wenfa Feng Xiaohui Liu Zebin Wang Xiaorong | 2012 | Chinese Forestry Science and Technology2012,11,3: | 2 |
| 9 | Studies on In(OH) rSz solid solutions : syntheses characterizations electronic structure and visible-light-driven photocatalytic activities 显示文摘 | LEI Zebin MA Guangjian LIU Mingying | 2006 | Journal of Catalysis2006,237,12: | 1 |
| 10 | Benefits of Zr addition to oxidation resistance of a single-phase (Ni,Pt)Al coating at 1373 K显示文摘A single-phase (Ni,Pt)Al coating with lean addition of Zr was prepared by co-electroplating of Pt-Zr com posite plating and subsequent gaseous alum inization treatm ents. Isotherm al and cyclic oxidation behavior of the Zr-doped (Ni,Pt)Al coating sam ples was assessed at 1373K in static air in comparison with plain nickel alum inide (NiAl) and norm al (Ni,Pt)Al coatings. Results indicated th at Zr-doped (Ni,Pt)Al coating dem onstrated a lower oxidation rate constant and reduced tendency of oxide scale spallation as well as surface rumpling, in which the enhanced oxidation perform ance was m ainly attributed to the segregation of Zr at oxide scale grain boundaries and the im proved Young's modulus of the coating. Besides, the addition of Zr effectively delayed oxide phase transform ation of Al2O3 from θ phase to α phase in the early oxidation stage and coating degradation of β-NiAl to γ'-Ni3Al in the stable oxidation stage. | Chengyang jiang Lingyi Qian Min Feng He Liu Zebin Bao Minghui Chen Shenglong Zhu Fuhui Wang | 2019 | Journal of Materials Science & Technology2019,35,7: | 1 |
| 11 | Environmental and canopy conditions regulate the forest floor evapotranspiration of larch plantations显示文摘Background:Integrated forest-water management focusing on forest-water coordination is an important way to alleviate water use conflicts among forests and other sectors in vast dryland regions.Forest floor evapotranspiration(FE),which is an important component of forest evapotranspiration,accounts for a large proportion of the water consumed in arid forests.Elucidating how environmental and canopy conditions impact FE has important significance for guiding integrated forest-water management in a changing environment.Methods:The microlysimeter(ML)-measured evapotranspiration(FE_(ML)),reference evapotranspiration(ET_(o)),volumetric soil moisture(VSM),and canopy leaf area index(LAI)were monitored in a Larix principis-rupprechtii plantation located in the semi-humid Liupan Mountains of Northwest China in 2019(June–September)and 2021(May–September).The response functions of the FE coefficient(the ratio of daily FEML to ET_(o))to the individual factors of VSM and LAI were determined using upper boundary lines of scatter diagrams of measured data.The framework of the daily FE(FE_(ML))model was established by multiplying the response functions to individual factors and then calibrated and validated using measured data to assess the FE response to environmental and canopy conditions.Results:(1)The FE coefficient increased first rapidly and then slowly with rising VSM but decreased slowly with rising LAI.(2)The simple daily FE(FE_(ML))model developed by coupling the impacts of ET_(o),LAI,and VSM in this study performed well for predicting FE.(3)The impacts of ET_(o),LAI,and VSM were quantified using the FE(FE_(ML))model,e.g.,at a given VSM,the impact of ETo on FE increased obviously with decreasing LAI;at a given ET_(o),the impact of LAI on FE increased with rising VSM.(4)In the two study years,when directly using the microlysimeter measurement,the real FE on the forest floor was overestimated when the VSM in microlysimeters was above 0.215 but underestimated below 0.215 due to the difference in VSM from the forest floor.Thus,the VSM on the forest floor should be input into the FE model for estimating the real FE on the forest floor.Conclusions:The daily FE of larch plantation is controlled by three main factors of environmental(ET_(o) and VSM)and canopy conditions(LAI).The variation in daily FE on the forest floor can be well estimated using the simple FE model coupling the effects of the three main factors and by inputting the VSM on the forest floor into the model to avoid the errors when directly using the microlysimeter measurement with different VSMs from the forest floor.The developed FE model and suggested prediction approach are helpful to estimate the FE response to changing conditions,and to guide forest management practices when saving water by thinning is required. | Zebin Liu Yanhui Wang Pengtao Yu Lihong Xu Songping Yu | 2022 | Forest Ecosystems2022,9,5: | 1 |
| 12 | Leisure Agriculture Based on Cultural Resources of Sani People in Yunnan显示文摘Through exploring the material and nonmaterial cultural resources in leisure agriculture of Sani People in Shilin of Yunnan Province,this paper introduced festivals,marriage,traditional clothing,and food culture of Sani People,and present the long history and brilliant culture of Sani People. These culture resources could be used to expand the cultural aspects of leisure agriculture,to solve the problems of low participation and less distinct characteristics. This study can provide a reference for building the high-end leisure agriculture with distinct characteristics of Yunnan Province,to form a new growth point for regional growth. | Jinzhu HUA Zebin CHEN Yajun SHI Jia'ni LIU Liyuan YAO Yuyu ZHANG Jingxiang HU Haotian WANG Zhiwei ZHENG | 2017 | Asian Agricultural Research2017,9,4: | 1 |
| 13 | Systematic Analysis of Gene Expression in Western Flower Thrip( Frankliniella occidentalis Pergande ) before and after Infection with Impatiens Necrotic Spot Virus(INSV)显示文摘Impatiens necrotic spot virus( INSV) is an important plant virus identified in recent years. Western flower thrip( Frankliniella occidentalis) has been confirmed to be the most efficient vector for INSV. In the present study,Illumina's second-generation sequencing technique was used to determine the variation in gene expression at the transcriptome level in western flower thrip before and after infection with INSV. By aligning 168 188 unigenes of western flower thrip to the NCBI protein database,47 558 unigenes were annotated,accounting for 28. 27% of the total. Species classification revealed that 58. 7% of the annotated unigenes of western flower thrip did not match any other species,and 15. 4% of had a match in Zootermopsis navadensis,12. 4% in Mus musculus,7. 3% in Mustela putorius,3. 4% in Theileria parva,and 2. 7% in Tribolium castaneum. By analyzing DEGs between INSV-free and INSV-carrying western flower thrips,we found that 11 genes were upregulated,and 9 genes were downregulated in western flower thrip after INSV infection. In addition,cell cycle and ubiquitin-proteasome pathway in western flower thrip were significantly infected by INSV infection. | Jiani LIU Shengguang XU Yuyu ZHANG Zebin CHEN Rong LU Lei YU | 2017 | Agricultural Biotechnology2017,6,5: | 1 |
| 14 | Effects of Plant Secondary Metabolite Nicotine on Growth and Development of Frankliniella occidentalis显示文摘[Objective] The paper was to explore the chemical and molecular mechanisms of Frankliniella occidentalis, an important quarantine pest, against toxic substances. [Method] F. occidentalis were evaluated after continuous exposure to artificial diets containing nicotine from the 2^(nd) and the 3^(rd)instars for five generations, to determine the larval weight, pupal weight, and larval development duration. [Result] The larval development delayed and nicotine treatment significantly inhibited the weight gain of larvae. Compared to the control, the inhibition rates of larval weight and pupal weight were declined from 45% to 20% and from 25% to 4% respectively after feeding the 2^(nd)instars with nicotine for five generations.Nicotine delayed the larval growth and prolonged the generation duration of F. occidentalis. Nicotine showed more significant inhibitory effect on the lower instar larvae. With the increasing generations of secondary culture, the inhibitory effect of nicotine on larval weight and pupal weight was weakened. The developmental period of larvae was shortened, and the generation duration of F. occidentalis was shortened. [Conclusion] Nicotine affects the growth and development of F. occidentalis. F. occidentalis will gradually increase the adaptability to nicotine toxic substances after selfregulation for a few generations, and relieve the inhibitory effect of toxic substances. | Liu Jiani Chen Zebin Yu Lei Xu Shengguang Zhang Yuyu | 2018 | Plant Diseases and Pests2018,9,2: | 1 |
| 15 | A Novel Supervised Method for Hyperspectral Image Classification with Spectral-Spatial Constraints显示文摘In this paper, a new supervised classification method, combining spectral and spatial information,is proposed. The method is based on the two following facts. First, a hyperspectral pixel can be sparsely represented by a linear combination of the dictionary consists of a few labeled samples. If any unknown hyperspectral pixel lies in the subspace spanned by some labeled-class samples, it will be classified to this labeled-class. And this is to solve a fully constrained sparse unmixing problem with the l2 regularization and the criterion of classification is relaxed to be determined by the largest value of sparse vector whose nonzero entries correspond to the weights of the labeled samples. Second, since the nearest neighbors probably belong to the same class, a spatial constraint is introduced. Alternating direction method of multipliers(ADMM) and the graph cut based method are then used to solve the spectral-spatial model. Finally, two real hyperspectral data sets are used to validate our proposed method. Experimental results show that the proposed method outperforms many of the state-of-the-art methods. | SUN Le WU Zebin LIU Jianjun WEI Zhihui | 2014 | Chinese Journal of Electronics2014,23,1: | 1 |
| 16 | Diversity of Moth Community in Wujiatang Wetland Park of Dianchi Lake显示文摘[Objective] The paper was to explore the species and dynamics of moths in Wujiatang wetland park in Dianchi lake. [Method] Moths under lamps in Wujiatang wetland park were investigated and studied regularly in 2016 and 2017, and the relationship among diversity index, indi-vidual number, species richness, evenness and diversity of moth community was analyzed. [Result] A total of 138 species of months belonging to 91 genera and 13 families were collected from Wujiatang wetland park, Dianchi lake, Kunming. The dominant insects were Crambidae and Noctuidae.The relationship between species and abundance relationship of moth community conformed to the niche priority occupation model, and the diversity index was not consistent with the evenness, but consistent with the species richness. [Conclusion]The study indicated that there were less species of moths in Wujiatang wetland park, and the community was unstable. | Liu Jiani Lu Rong Yang Yongyan Zhang Yuyu Chen Zebin Xu Shengguang Yu Lei | 2018 | Plant Diseases and Pests2018,9,3: | 0 |
| 17 | Effects of zero-valent iron added in the flooding or drainage process on cadmium immobilization in an acid paddy soil显示文摘Zero-valent iron(ZVI)is a promising material for the remediation of Cd-contaminated paddy soils.However,the effects of ZVI added during flooding or drainage processes on cadmium(Cd)retention remain unclear.Herein,Cd-contaminated paddy soil was incubated for 40days of flooding and then for 15 days of drainage,and the underlying mechanisms of Cd immobilization coupled with Fe/S/N redox processes were investigated.The addition of ZVI to the flooding process was more conducive to Cd immobilization.Less potential available Cd was detected by adding ZVI before flooding,which may be due to the increase in paddy soil pH and newly formed secondary Fe minerals.Moreover,the reductive dissolution of Fe minerals promoted the release of soil colloids,thereby increasing significantly the surface sites and causing Cd immobilization.Additionally,the addition of ZVI before flooding played a vital role in Cd retention after soil drainage.In contrast,the addition of ZVI in the drainage phase was not conducive to Cd retention,which might be due to the rapid decrease in soil pH that inhibited Cd adsorption and further immobilization on soil surfaces.The findings of this study demonstrated that Cd availability in paddy soil was largely reduced by adding ZVI during the flooding period and provide a novel insight into the mechanisms of ZVI remediation in Cd-contaminated paddy soils. | Hanbing Meng Shiwen Hu Zebin Hong Wenting Chi Guojun Chen Kuan Cheng QiWang Tongxu Liu Fangbai Li Kexue Liu Yang Yang | 2024 | Journal of Environmental Sciences2024,,4: | 0 |
| 18 | SEM imaging of insulating specimen through a transparent conducting veil of carbon nanotube显示文摘Observing the morphology of insulating specimen in scanning electron microscope(SEM)is of great significance for the nanoscale semiconductor devices and biological tissues.However,the charging effect will cause image distortion and abnormal contrast when observing insulating specimen in SEM.A typical solution to this problem is using metal coating or water-removable conductive coating.Unfortunately,in both cases the surface of the specimen is covered by a thin layer of conductive material which hides the real surface morphology and is very difficult to be completely removed after imaging.Here we show a convenient,residue-free,and versatile method to observe real surface morphology of insulating specimen without charging effect in SEM with the help of a nanometer-thick film of super-aligned carbon nanotube(SACNT).This thin layer of SACNT film,like metal,can conduct the surface charge on insulating specimen through the sample stage to the ground,thus eliminating the charging effect.SACNT film can also be used as the conductive tape to carry and immobilize insulating powder or particles during SEM imaging.Different from the metal coating,SACNT film is transparent,so that the real microstructure of the insulating specimen surface can be observed.In addition,SACNT film can be easily attached to and peeled off from the surface of specimen without any residue.This convenient,residue-free,and versatile method can open up new possibilities in nondestructive SEM imaging of a wide variety of insulating materials,semiconductor devices,and biological tissues. | Xinyu Gao Guo Chen He Ma Yuchen Ju Ke Zhang Lin Cong Wen Ning Zi Yuan Zebin Liu Lina Zhang Peng Liu Shoushan Fan Kaili Jiang | 2022 | Nano Research2022,15,7: | 0 |
| 19 | Effects of Nicotine, a Plant Secondary Metabolite, on Protective Enzyme and Detoxification Enzyme of Frankliniella occidentalis显示文摘[Objective] The paper was to explore the effects of plant secondary metabolite on protective enzymes and detoxification enzymes of quarantine pest Frankliniella occidentalis. [Method] F. occidentalis were continuously exposed to artificial diets containing nicotine from the second to fifth instars for five generations, and the effects of nicotine on protective enzymes and detoxification enzymes of larvae were determined. [Result]The activities of carboxylate esterase(CarE) and glutathione-S-transferase(GST) in midgut of the fifth instar larvae were significantly increased, and reached the maximum at the third generation(1.86 times and 1.59 times, respectively). Nicotine inhibited the activities of superoxide dismutase(SOD) and catalase(CAT). With the increase of feeding generations, the inhibitory effect of nicotine weakened. Nicotine significantly increased the activities of peroxidase(POD). [Conclusion] F. occidentalis will gradually adapt to the harm of plant toxins by starting its own detoxification enzyme system and regulating protective enzyme system after feeding on plant secondary substance nicotine. | Liu Jiani Su Yuan Wei Wei Zhong Yu Chen Zebin Yu Lei | 2019 | Plant Diseases and Pests2019,10,2: | 0 |
| 20 | Community Structure of Endophytic Bacteria in Chestnut, Castanea mollissima显示文摘[Objective]The paper was to detect the species of endophytic bacteria in Chestnut (Castanea mollissima).[Method]The 16S rDNA-V4 region of endophytic bacteria in chestnut(sample name BL) was sequenced by Illumina Mi Seq high-throughput sequencing technology. The number of sequences and operational taxonomic units(OTUs) for each sample was sorted and calculated using Qiime and Mothur software. The abundance and α-diversity of species were analyzed.[Result]The number of effective sequences and OTUs were 21 167 /191. The rarefaction curves showed that adequate sampling was achieved,and the number of OTUs was close to saturation. The endophytic bacteria of chestnut belonged to 10 genera,including Koribacter(3. 48%),Solibacter(2. 59%),Bradyrhizobium(3. 57%), Rhodoplanes(7. 41%), Methylobacterium(4. 20%), Agrobacterium(19. 73%), Kaistobacter( 2. 05%), Sphingomonas(18. 66%),Acidovorax(35. 98%),and Methylibium(2. 32%). The dominant species were Acidovorax,Agrobacterium and Sphingomonas.[Conclusion]Illumina high-throughput sequencing technology provided more accurate and scientific data resources for the study of endophytic bacteria in chestnut. | Chen Zebin Li Bing Xia Tiyuan Wang Dingkang Yu Lei Xu Shengguang Liu Jiani Zhang Yongfu | 2016 | Plant Diseases and Pests2016,7,4: | 0 |