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Spatio-temporal Evolution of Urban Expansion Based on a Novel Adjusted Index and GEE: A Case Study of Central Plains Urban Agglomeration, China

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Chinese Geographical Science 2023年第4期33卷 736-750页

作者： SU Yanlin LU Chunyan SU Yue WANG Zili HUANG Yufei YANG Nuocheng College of Computer and Information Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002China Research Centre of Resource and Environment Spatial Information Statistics of fujian Province Fujian Agriculture and Forestry UniversityFuzhou 350002China Key Laboratory of Ecology and Resources Statistics of fujian Province Universities Fujian Agriculture and Forestry UniversityFuzhou 350002China

It is crucial to investigate the urban agglomerations spatio-temporal evolution patterns and driving factors for analyzing the urban spatial structure-functional division and promoting the coordinated development of urban *** this study,a novel vegetation-building-nighttime light-adjusted index(VBNAI)was established for rapid and effective mapping of urban construction land(UCL)in Central Plains Urban Agglomeration(CPUA),China during 2000–2020 based on Google Earth Engine(GEE)*** with traditional indices,VBNAI can significantly decrease the blooming effect,Normalized Difference Vegetation Index(NDVI)saturation,and soil background of nighttime light *** addition,the urban expansion indices and standard deviation ellipse model were synthetically adopted to analyze the spatio-temporal evolution pattern of urban *** gravity model and the geographically weighted regression model were employed to determine the spatial interaction forces and drivers of urban expansion,*** results showed that the VBNAI index has obvious advantages in efficiency and accuracy to extract UCL with the overall accuracy of more than 91%.The UCL of CPUA had increased by 4489.84 km2 during 2000–2020 with the gravity center moving towards southeast *** 2000 to 2010,the urban expansion was in a‘center-hinterland’pattern which had benefit from the favorable effect of the traffic shaft *** 2010–2020,the urban network structure had basically *** expansion had been influenced by a variety of socio-economic and demographic factors,and the impact degree varied from region to *** study could provide scientific references for facilitating the intensive utilization of urban resources and optimizing the spatial development pattern of urban agglomeration.

关键词： urban expansion urban construction land(UCL)mapping vegetation-building-nighttime light-adjusted index(VBNAI) multi-source remote sensing Google Earth Engine(GEE) Central Plains Urban Agglomeration(CPUA),China

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Spatio-temporal Evolution Characteristics and Driving Forces of Winter Urban Heat Island:A Case Study of Rapid Urbanization Area of Fuzhou City,China

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Chinese Geographical Science 2024年第1期34卷 135-148页

作者： WANG Zili LU Chunyan SU Yanlin SU Yue YU Qianru LI Wenzhe YANG Nuocheng College of Computer and Information Sciences Fujian Agriculture and Forestry UniversityFuzhou350002China Key Laboratory of Smart agriculture and forestry(fujian agriculture and forestry university) Fujian Province UniversityFuzhou350002China College of forestry Fujian Agriculture and Forestry UniversityFuzhou350002China

Under the influence of anthropogenic and climate change,the problems caused by urban heat island(UHI)has become increasingly *** order to promote urban sustainable development and improve the quality of human settlements,it is significant for exploring the evolution characteristics of urban thermal environment and analyzing its driving *** the Landsat series images as the basic data sources,the winter land surface temperature(LST)of the rapid urbanization area of Fuzhou City in China was quantitatively retrieved from 2001 to *** comprehensively the standard deviation ellipse model,profile analysis and GeoDetector model,the spatio-temporal evolution characteristics and influencing factors of the winter urban thermal environment were systematically *** results showed that the winter LST presented an increasing trend in the study area during 2001–2021,and the winter LST of the central urban regions was significantly higher than the *** was a strong UHI effect from 2001 to 2021with an expansion trend from the central urban regions to the suburbs and coastal areas in space *** LST of green lands and wetlands are significantly lower than croplands,artificial surface and unvegetated *** and water bodies had a significant mitigation effect on UHI,especially in the *** winter UHI had been jointly driven by the underlying surface and socio-economic factors in a nonlinear or two-factor interactive enhancement mode,and socio-economic factors had played a leading *** research could provide data support and decision-making references for rationally planning urban layout and promoting sustainable urban development.

关键词： winter urban heat island(UHI) rapid urbanization area land surface temperature(LST)retrieval profile analysis GeoDetector model Fuzhou City,China

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Rice yellow stunt virus activates polyamine biosynthesis to promote viral propagation in insect vectors by disrupting ornithine decarboxylase antienzyme function

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Science China(Life Sciences) 2021年第9期64卷 1522-1532页

作者： Xiao-Feng Zhang Tianbao Zeng Yunjie Xie Yuemin Zheng Huanqin Wang Hanbin Lin Zongwen Wang Taiyun Wei State Key Laboratory of Ecological Pest Control for fujian and Taiwan Crops Institute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhou 350002China

Intracellular polyamines(putrescine,spermidine,and spermine)have emerged as important molecules for viral infection;however,how viruses activate polyamines biosynthesis to promote viral infection remains *** decarboxylase 1(ODC1)and its antienzyme 1(OAZ1)are major regulators of polyamine biosynthesis in animal ***,we report that rice yellow stunt virus(RYSV),a plant rhabdovirus,could activate putrescine biosynthesis in leafhoppers to promote viral propagation by inhibiting OAZ1 *** observed that the reduction of putrescine biosynthesis by treatment with difluormethylornithine(DFMO),a specific nontoxic inhibitor of ODC1,or with in vitro synthesized dsRNAs targeting ODC1 mRNA could inhibit viral *** contrast,the supplement of putrescine or the increase of putrescine biosynthesis by treatment with ds RNAs targeting OAZ1 mRNA could facilitate viral *** further determined that both RYSV matrix protein M and ODC1 directly bind to the ODC-binding domain at the C-terminus of ***,viral propagation in leafhoppers would decrease the ability of OAZ1 to target and mediate the degradation of ODC1,which finally activates putrescine production to benefit viral *** work reveals that polyamine-metabolizing enzymes are directly exploited by a vector-borne virus to increase polyamine production,thereby facilitating viral infection in insect vectors.

关键词： rice yellow stunt virus leafhopper polyamines viral infection plant virus

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Spatio-temporal Variations of Temperature and Precipitation During 1951–2019 in Arid and Semiarid Region, China

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Chinese Geographical Science 2022年第2期32卷 285-301页

作者： HUANG Yufei LU Chunyan LEI Yifan SU Yue SU Yanlin WANG Zili College of Computer and Information Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002China Key Laboratory of Ecology and Resources Statistics of fujian Province Universities Fujian Agriculture and Forestry UniversityFuzhou 350002China Statistical Information Research Center of fujian Province Fujian Agriculture and Forestry UniversityFuzhou 350002China Research Centre of Resource and Environment Spatial Information Statistics of fujian Province Fujian Agriculture and Forestry UniversityFuzhou 350002China

Understanding the spatio-temporal variations of temperature and precipitation in the arid and semiarid region of China(ASRC)is of great significance for promoting regional eco-environmental protection and *** this study,the annual and seasonal spatio-temporal patterns of change in average temperature and precipitation and their influencing factors in the ASRC were analyzed using the Mann-Kendall test,linear tendency estimation,accumulative anomaly and the Pearson’s correlation *** results showed that both annual average temperature and average annual precipitation increased in the ASRC during 1951–*** temperature rose by about 1.93℃and precipitation increased by about 24 *** seasonal average temperature presented a significant increase trend,and the seasonal precipitation was conspicuous ascension in spring and *** spatio-temporal patterns of change in temperature and precipitation differed,with the southwest area showing the most obvious variation in each *** changes in annual and seasonal average temperature and precipitation occurred mainly around the 1990 s and after 2000,*** circulation had an important effect on the trends and abrupt changes in temperature and *** East Asian summer monsoon had the largest impact on the trend of average annual temperature,as well as on the abrupt changes of annual average temperature and *** and precipitation changes in the ASRC were influenced by long-term and short-term as well as direct and indirect anthropogenic and natural *** study identifies the characteristics of spatio-temporal variations in temperature and precipitation in the ASRC and provides a scientific reference for the formulation of climate change responses.

关键词： multi-source remote sensing data temperature precipitation arid and semiarid region spatio-temporal variation atmospheric circulation

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Isolation and identification of Fusarium oxysporum f. sp. cubense in fujian Province, China

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Journal of Integrative agriculture 2019年第8期18卷 1905-1913页

作者： WU Kai-li CHEN Wei-zhong YANG Shuai WEN Ya ZHENG Yu-ru Wilfred Mabeche Anjago YUN Ying-zi WANG Zong-hua State Key Laboratory of Ecological Pest Control for fujian and Taiwan Crops College of Plant Protection Fujian Agriculture and Forestry University Fuzhou 350002 P.R.China fujian Institute for Food and Drug Quality Control Fuzhou 350001 P.R.China Institute of Oceanography Minjiang University Fuzhou 350108 P.R.China

Fusarium wilt, caused by Fusarium oxyporum f. sp. cubense(Foc), is the most serious disease affecting banana *** clarify the distribution of the Foc races in fujian Province of China, 79 soil samples were collected from four regions of Zhangzhou City, the primary banana production area in fujian. We isolated and identified 12 Foc strains based on internal transcribed spacer(ITS) sequence analysis, PCR amplification by using Foc-specific primers and pathogenicity *** analysis indicated that 11 isolates belong to Foc race 1, and 1 isolate belongs to the Foc tropical species race 4(TR4).Although TR4 has previously been reported to occur in primary banana-producing provinces, such as Hainan, Guangxi,and Guangdong of China, this is the first report of TR4 isolated from the soil in fujian Province. Monitoring the presence of Foc, in particular, the TR4 strains in the soil, is the basic strategy to prevent and control Fusarium wilt.

关键词： Fusarium oxysporum f. sp. cubense(Foc) identification of physiological races pathogenicity test fujian Fusarium wilt

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The actin motor protein OsMYA1 associates with OsExo70H1 and contributes to rice secretory defense by modulating OsSyp121 distribution

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Journal of Integrative Plant Biology 2024年第9期66卷 2058-2075页

作者： Yuan‐Bao Li Chengyu Liu Ningning Shen Shuai Zhu Xianya Deng Zixuan Liu Li‐Bo Han Dingzhong Tang State Key Laboratory of Ecological Control of fujian‐Taiwan Crop Pests Key Laboratory of Ministry of Education for GeneticsBreeding and Multiple Utilization of CropsPlant Immunity CenterFujian Agriculture and Forestry UniversityFuzhou 350002China College of agriculture Fujian Agriculture and Forestry UniversityFuzhou 350002China College of Life Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002China School of Future Technology Fujian Agriculture and Forestry UniversityFuzhou 350002China

Magnaporthe oryzae(***)is a devastating hemibiotrophic *** biotrophic invasive hyphae(IH)are enclosed in the extrainvasive hyphal membrane produced by plant cells,thus generating a front line of the battlefield between the pathogen and the host *** plants,defense-related complexes such as proteins,callose-rich materials and vesicles,are directionally secreted to this interface to confer defense responses,but the underlying molecular mechanism is poorly *** this study,we found that a Myosin gene,Myosin A1(OsMYA1),contributed to rice *** OsMYA1 knockout mutant exhibited decreased resistance to *** ***1 localizes to the actin cytoskeleton and surrounds the IH of ***1 interacts with an exocyst subunit,OsExo70H1,and regulates its accumulation at the plasma membrane(PM)and pathogen–plant ***,OsExo70H1 interacted with the rice syntaxin of the plants121 protein(OsSyp121),and the distribution of OsSyp121 to the PM or the pathogen–plant interface was disrupted in both the OsMYA1 and OsExo70H1 ***,these results not only reveal a new function of OsMYA1 in rice blast resistance,but also uncover a molecular mechanism by which plants regulate defense against *** by OsMYA1-initiated vesicle secretory pathway,which originates from the actin cytoskeleton to the PM.

关键词： cytoskeleton plant defense mechanism rice blast vesicle delivery

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The Cymbidium genome reveals the evolution of unique morphological traits

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Horticulture Research 2021年第1期8卷 3449-3463页

作者： Ye Ai Zhen Li Wei-Hong Sun Juan Chen Diyang Zhang Liang Ma Qing-Hua Zhang Ming-Kun Chen Qing-Dong Zheng Jiang-Feng Liu Yu-Ting Jiang Bai-Jun Li Xuedie Liu Xin-Yu Xu Xia Yu Yu Zheng Xing-Yu Liao Zhuang Zhou Jie-Yu Wang Zhi-Wen Wang Tai-Xiang Xie Shan-Hu Ma Jie Zhou Yu-Jie Ke Yu-Zhen Zhou Hsiang-Chia Lu Ke-Wei Liu Feng-Xi Yang Gen-Fa Zhu Laiqiang Huang Dong-Hui Peng Shi-Pin Chen Siren Lan Yves Van de Peer Zhong-Jian Liu Key Laboratory of National forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture Fujian Agriculture and Forestry UniversityFuzhouChina Department of Plant Biotechnology and Bioinfor matics Ghent UniversityGentBelgium VIB Center for Plant Systems Biology GentBelgium College of forestry Fujian Agriculture and Forestry UniversityFuzhouChina Management Office of Yushan Scenic Area FuzhouChina College of agriculture and Biotechnology Zhejiang UniversityHangzhouChina Key Laboratory of Plant Resource Conservation and Sustainable Utilization South China Botanical GardenChinese Academy of SciencesGuangzhouChina PubBio-Tech WuhanChina Tsinghua-Berkeley Shenzhen Institute(TBSI) Center for Biotechnology and Biomedicine and Shenzhen Key Laboratory of Gene and Antibody The rapyState Key Laboratory of Chemical OncogenomicsState Key Laboratory of Health Sciences and TechnologyInstitute of Biopha rmaceutical and Health Engineering(iBHE)Shenzhen International Graduate SchoolTsinghua UniversityShenzhenChina Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization Environmental Horticulture Research InstituteGuangdong Academy of Agricultural SciencesGuangzhouChina Department of Biochemistry Genetics and MicrobiologyUniversity of PretoriaPretoriaSouth Africa College of Horticulture Academy for Advanced Interdisciplinary StudiesNanjing Agricultural UniversityNanjingChina Henry Fok College of Biology and agriculture Shaoguan UniversityShaoguanChina Institute of Vegetable and Flowers Shandong Academy of Agricultural SciencesJinanChina

The marvelously diverse Orchidaceae constitutes the largest family of *** genus Cymbidium in Orchidaceae is well known for its unique vegetation,floral morphology,and flower scent ***,a chromosomescale assembly of the genome of Cymbidium ensifolium(Jianlan)is *** genomic analysis showed that *** has experienced two whole-genome duplication(WGD)events,the most recent of which was shared by all orchids,while the older event was the t event shared by most *** results of MADS-box genes analysis provided support for establishing a unique gene model of orchid flower development regulation,and flower shape mutations in *** were shown to be associated with the abnormal expression of MADS-box *** most abundant floral scent components identi fied included methyl jasmonate,acacia alcohol and linalool,and the genes involved in the floral scent component network of *** were ***,the decreased expression of photosynthesis-antennae and photosynthesis metabolic pathway genes in leaves was shown to result in colorful striped leaves,while the increased expression of MADS-box genes in leaves led to perianth-like *** results provide fundamental insights into orchid evolution and diversi fication.

关键词： traits evolution establishing

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A TaqMan real-time PCR assay for detection and quantification of Sporisorium scitamineum in sugarcane

A TaqMan real-time PCR assay for detection and quantificatio...

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中国作物学会2013年学术年会

作者： Yachun Su Shanshan Wang Jinlong Guo Bantong Xue Liping Xu Youxiong Que Key Laboratory of Sugarcane Biology and Genetic Breeding Ministry of Agriculture/Fujian Agriculture and Forestry University

Sporisorium scitamineum is a fungal smut pathogen epidemic in sugarcane producing *** detection and proper identification of the smut are an essential requirement in its management *** this study,we developed a TaqMan real-time PCR assay using specific primers(bEQ-F/bEQ-R) and a TaqMan probe (bEQ-P) which were designed based on the bE(b East mating-type) gene(Genbank Accession No.U61290.1). Standard curves revealed that the new TaqMan real-time PCR procedure has high amplification efficiency when applied to a range of samples,*** pbE DNA,and plant DNA extracted from diseased *** method was more sensitive(a detection limit of 10 ag pbE DNA and 0.8 ng sugarcane genomic DNA) than that of conventional PCR(10 fg and 100 ng,respectively).Reliability was demonstrated through the positive detection of samples collected from artificially-inoculated sugarcane plantlets(FN40).This TaqMan assay was capable of detecting the smut pathogen at the initial stage(12 h) of infection and suitable for inspection of sugarcane pathogen-free seed cane and ***,quantification of pathogen was verified in pathogen challenged buds in different sugarcane *** values and copy numbers showed a significant difference between the varieties of Yacheng05-179(resistant) and "ROC"22(susceptible) suggesting this method can be used for evaluation of smut resistance in different sugarcane *** process of teliospore germination and the curve of mycelial growth was observed in order to get a better determination on the key time of sugarcane-smut *** together,this novel assay can be used as a diagnostic tool for sensitive,accurate,fast and quantitative detection of the pathogen especially for asymptomatic seed cane or plants and evaluation of smut resistance of sugarcane genotypes.

关键词： Saccharum officinarum Sporisorium scitamineum TaqMan real-time PCR Standard curve Detection Quantification

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Isolation of a novel peroxisomal catalase gene(ScCAT1) from sugarcane,positive responses to the challenge of smut pathogen and abiotic stresses

Isolation of a novel peroxisomal catalase gene(ScCAT1) from ...

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中国作物学会2013年学术年会

作者： Yachun Su Jinlong Guo Hui Ling Shanshan Chen Shanshan Wang Liping Xu Youxiong Que Key Laboratory of Sugarcane Biology and Genetic Breeding Ministry of Agriculture/Fujian Agriculture and Forestry University

Catalase is an iron porphyrin enzyme,which serves as one of the efficient scavengers of reactive oxygen species(ROS) which can convert HO into water and *** the developmental processes or by pathogen attack or environmental stimuli,the main function of catalase is to remove the excessive HO generated in all aerobic organisms to avoid oxidative *** the present study,the activity of catalase in resistant sugarcane variety(Yacheng05-179) was always higher than that of the mock and the increment was obvious higher than that of the susceptible one(Liucheng03-182),while the change tendency was unsteady in the susceptible genotype after Sporisorium scitamineum challenge,suggested that catalase activity may have a positive correlation with smut resistance in *** understand the expression of catalase at the gene level,a cDNA sequence of ScCAT1(GenBank Accession ***528830),was isolated from sugarcane infected by S. ***1 was predicted to encode 493 amino acid residues,and its deduced amino acid sequence shared a high degree of homology with other plant *** growth of ScCAT1 in recombinant *** Rosetta cells under the stresses of CuCl2,CdCl2 and NaCl indicated its high tolerance.Q-PCR results showed that ScCAT1 expressed relatively high in bud,whereas expressed at a moderate level in skin and bagasse pith. Different kinds of stresses,including *** challenge,plant hormones(SA,HO,MeJA and ABA) treatments,heavy metal(CuCl) and hyper-osmotic stresses(PEG and NaCl),triggered a significant induction of *** ScCAT1 localized in microbody,assumed that it might participate in removing excessive HO accumulated in ***,histochemical assay by DAB and trypan blue staining as well as conductivity measurement also indicated that ScCAT1 may confer the sugarcane *** conclusion,the positive response of ScCAT1 to the various biotic and abiotic stresses revealed that ScCAT1 may help to protect the s

关键词： Catalase Subcellular localization Gene expression Transient expression Abiotic stress

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Transcriptome profile analysis of sugarcane responses to Sporisorium scitaminea infection using Solexa sequencing technology

Transcriptome profile analysis of sugarcane responses to Spo...

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中国作物学会2013年学术年会

作者： Qibin Wu Liping Xu Jinlong Guo Yachun Su Youxiong Que Key Laboratory of Sugarcane Biology and Genetic Breeding Ministry of Agriculture/Fujian Agriculture and Forestry University

To understand the molecular basis of sugarcane-smut interaction,it is important to identify sugarcane genes respond to the pathogen ***-throughput tag-sequencing(tag-seq) analysis by Solexa technology was performed on sugarcane infected with ***,which should have massively increased the amount of data available for transcriptome profile *** mapping to sugarcane EST databases in NCBI, we obtained 2015 differentially expressed genes,of which 1125 were up-regulated and 890 down-regulated by *** ontology(GO) analysis revealed that the differentially expressed genes involve in many cellular *** analysis revealed that metabolic pathways and ribosome function are significantly affected, where up-regulation of expression dominates over *** expression of three candidate genes involved in MAP kinase signaling pathway,ScBAK1(GenBank Accession number:KC857629),ScMapkk (GenBank Accession number:KC857627) and ScGloI(GenBank Accession number:KC857628),was confirmed by reverse transcription polymerase chain reaction(RT-PCR).Real-time quantitative PCR(qRT-PCR) analysis concluded that the expression of these genes were all up-regulated after the infection of *** and may play a role in pathogen response in *** present study provides insights into the molecular mechanism of sugarcane defense to *** infection,leading to a more comprehensive understanding of sugarcane-smut interaction.

关键词： Sugarcane Sporisorium scitaminea Smut Sugarcane-smut interaction Solexa sequencing Transcriptome profile RT-PCR Real-time quantitative PCR

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