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Redox sensor QSOX1 regulates plant immunity by targeting GSNOR to modulate ROS generation

Molecular Plant 2021年第8期14卷 1312-1327页

作者： Ho Byoung Chae Min Gab Kim Chang Ho Kang Joung Hun Park Eun Seon Lee Sang-Uk Lee Yong Hun Chi Seol Ki Paeng Su Bin Bae Seong Dong Wi Byung-Wook Yun Woe-Yeon Kim Dae-Jin Yun David Mackey Sang Yeol Lee Division of Applied Life Sciences(BK21)and PMBBRC Gyeongsang National UniversityJinju 52828Korea College of Pharmacy Research Institute of Pharmaceutical ScienceGyeongsang National UniversityJinju 52828Korea School of Applied Biosciences College of Agriculture and Life SciencesKyungpook National UniversityDaegu 41566Korea Department of Biomedical Science and Engineering Konkuk UniversitySeoul 05029Korea Department of Horticulture and Crop Science Department of Molecular Geneticsand Center for Applied Plant SciencesThe Ohio State UniversityColumbusOH 43210USA College of Life Sciences Qingdao Agricultural UniversityQingdao 266109P.R.China Plant Propagation Team Plant Production DivisionSejong National ArboretumSejong 30106Korea

Reactive oxygen signaling regulates numerous biological processes,including stress responses in *** sensors transduce reactive oxygen signals into cellular ***,we present biochemical evidence that a plant quiescin sulfhydryl oxidase homolog(QSOX1)is a redox sensor that negatively regulates plant immunity against a bacterial *** expression level of QSOX1 is inversely correlated with pathogen-induced reactive oxygen species(ROS)***,QSOX1 both senses and regulates ROS levels by interactingn with and mediating redox regulation of S-nitrosoglutathione reductase,which,consistent with previous findings,influences reactive nitrogen-mediated regulation of ROS ***,our data indicate that QSOX1 is a redox sensorthat negatively regulates plant immunity by linking reactive oxygen and reactive nitrogen signaling to limit ROS production.

关键词： redox sensor plant immu nity QSOX1 GSNOR reactive oxygen species(ROS) reactive nitrogen species(RNS)

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Genome-wide association studies for inflorescence type and remontancy in Hydrangea macrophylla

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Horticulture Research 2020年第1期7卷 2477-2485页

作者： Xingbo Wu Lisa W.Alexander Oak Ridge Institute of Science and Technology Otis L.Floyd Nursery Research Center472 Cadillac LaneMcMinnvilleTNUSA U.S.Department of Agriculture Agricultural Research ServiceU.S.National ArboretumFloral and Nursery Plants Research UnitOtis L.Floyd Nursery Research Center472 Cadillac LaneMcMinnvilleTNUSA

Inflorescence type and remontancy are two valuable traits in bigleaf hydrangea(Hydrangea macrophylla L.)and both are recessively *** marker-assisted selection(MAS)can greatly reduce the time necessary to breed cultivars with desired *** this study,a genome-wide association study(GWAS)using 5803 single-nucleotide polymorphisms(SNPs)was performed using a panel of 82 bigleaf hydrangea *** SNP locus(Hy_CAPS_Inflo)associated with inflorescence type was identified with general linear model(GLM)and mixed linear model(MLM)methods that explained 65.5%and 36.1%of the phenotypic variations,***-three SNPs associated with remontancy were detected in GLM whereas no SNP was detected in *** SNP locus(Hy_CAPS_Inflo)was converted to a cleaved amplified polymorphic sequence(CAPS)marker that showed absolute identification accuracy(100%)of inflorescence type in a validation panel consisting of eighteen *** *** SNP was investigated in 341 F1 progenies using genotyping by sequencing(GBS)and co-segregated with inflorescence type(χ^(2)=0.12;P=0.73).The SNP was subsequently used for breeding selection using kompetitive allele specific PCR(KASP)*** directions for the use of genomics and MAS in hydrangea breeding improvement are *** results presented in this study provide insights for further research on understanding genetic mechanisms behind inflorescence type and remontancy in *** CAPS and KASP markers developed here will be immediately useful for applying MAS to accelerate breeding improvement in hydrangea.

关键词： breeding cultivar CAPS

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Coupling outdoor air quality with thermal comfort in the presence of street trees:a pilot investigation in Shenyang,Northeast China

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Journal of Forestry Research 2023年第3期34卷 831-839页

作者： Chunping Miao Pingping Li Yanqing Huang Yuxuan Sun Wei Chen Shuai Yu CAS Key Laboratory of Forest Ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110016People’s Republic of China Shenyang arboretum Chinese Academy of SciencesShenyang 110016People’s Republic of China Tanghekou Middle School Beijing 101400People’s Republic of China

Together,the heat island eff ect and air pollution pose a threat to human health and well-being in urban ***-based solutions such as planting trees are a mitigation strategy to improve outdoor temperatures(thermal comfort)and enhance air quality in urban *** this study,outdoor thermal comfort,and particulate matter levels were compared between treeless and treed areas to provide a better understanding of how street trees improve thermal comfort and air *** trees decreased the physiological equivalent temperature from 46.3 to 44.2℃in summer but increased it from 36.4 to 37.5℃in *** temperature and relative humidity contributed more in summer while wind speed contributed more in *** matter concentrations were negatively correlated with physiological equivalent temperature in summer but not in *** presence of trees decreased concentrations of fi ne particulate matter in hot summer conditions but increased in hot autumn *** presence of trees increased coarse particulate matter in very hot summer conditions in summer and in hot autumn ***,the layout of trees in urban street canyons should consider the trade-off between outdoor thermal comfort and air quality improvement.

关键词： Air pollution Particulate matter(PM) Physiological equivalent temperature(PET) Built environment Urban design

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A Malvaceae mystery: A mallow maelstrom of genome multiplications and maybe misleading methods?

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Journal of Integrative Plant Biology 2019年第1期61卷 12-31页

作者： Justin L.Conover Nisa Karimi Noah Stenz Cecile Ane Corrinne E.Grover Cynthia Skema Jennifer A.Tate Kirsten Wolff Samuel A.Logan Jonathan F.Wendel David A.Baum Department of Ecology Evolutionand Organismal BiologyIowa State University Department of Botany University of Wisconsin Madison Department of Statistics University of Wisconsin Madison Morris arboretum of the University of Pennsylvania Institute of Fundamental Sciences Massey University School of Natural and Environmental Sciences Newcastle University Wisconsin Institute for Discovery

Previous research suggests that Gossypium has undergone a 5-to 6-fold multiplication following its divergence from Theobroma. However, the number of events, or where they occurred in the Malvaceae phylogeny remains unknown. We analyzed transcriptomic and genomic data from representatives of eight of the nine Malvaceae subfamilies. Phylogenetic analysis of nuclear data placed Dombeya(Dombeyoideae) as sister to the rest of Malvadendrina clade, but the plastid DNA tree strongly supported Durio(Helicteroideae) in this position. Intraspecific Ks plots indicated that all sampled taxa, except Theobroma(Byttnerioideae), Corchorus(Grewioideae), and Dombeya(Dombeyoideae), have experienced whole genome multiplications(WGMs). Quartet analysis suggested WGMs were shared by Malvoideae-Bombacoideae and Sterculioideae-Tilioideae, but did not resolve whether these are shared with each other or Helicteroideae(Durio).Gene tree reconciliation and Bayesian concordance analysis suggested a complex history. Alternative hypotheses are suggested, each involving two independent autotetraploid and one allopolyploid event. They differ in that one entails an allopolyploid origin for the Durio lineage,whereas the other invokes an allopolyploid origin for Malvoideae-Bombacoideae. We highlight the need for more genomic information in the Malvaceae and improved methods to resolve complex evolutionary histories that may include allopolyploidy, incomplete lineage sorting, and variable rates of gene and genome evolution.

关键词： research data

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Indigenous parasitoids as effective natural enemies of Phyllocnistis citrella(Lepidoptera:Gracillariidae)in Korea

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Journal of Forestry Research 2017年第1期28卷 183-187页

作者： Sanghyeob Lee Da-Som Kim Il-Kwon Kim Chung-Won Choi Rokyeon Hwang Deok-Seo Ku Bong-Kyu Byun Department of Plant Biotechnology and Plant Engineering Research Institute Sejong UniversitySeoul 05006Republic of Korea Department of Biological Science and Biotechnology Hannam University461-6 Jeonmin-dongYuseong-guDaejeon 34054Republic of Korea Division of Forest Biodiversity Korea National ArboretumPocheon 11186Republic of Korea Citrus Research Institute SeogwipoJeju 63607Republic of Korea The Science Museum of Natural Enemies Geochang 50147Republic of Korea

This study is aimed to investigate the occurrence of Phyllocnistis citrella Stainton （citrus leafminer; CLM）, which has recently caused increasing damage to citrus farms in southern South Korea, and its natural enemies, which can act as biological control agents. In the present study, CLM monitoring using sex pheromone traps were conducted in the major citrus farms in the Jeju region in South Korea. Also a survey of parasites was carried out to detect the effective control agent for CLM. During the investigation from 2011 to 2015, a relatively large number of adult CLM （2,386,990） were observed in the sex pheromone traps. The mean annual occurrence of CLM was 477,398, which showed an increasing trend with the increase in temperature. A survey of parasites was conducted in November 2015. Six parasites were found, of which, Quadrastichus sp. and Sympiesis sp. showed the highest rates of parasitism. The mean rate of parasitism during the survey period was 3.97 %. We discovered four new species of parasites of CLM in South Korea.

关键词： CLM Biological control. Parasitoid Korea

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Prediction of Suitable Habitat for Lycophytes and Ferns in Northeast China: A Case Study on Athyrium brevifrons

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Chinese Geographical Science 2019年第6期29卷 1011-1023页

作者： LI Yan CAO Wei HE Xingyuan CHEN Wei XU Sheng Institute of Applied Ecology Chinese Academy of SciencesShenyang 110016China University of Chinese Academy of Sciences Beijing 100049China Shenyang arboretum Chinese Academy of SciencesShenyang 110016China Key Laboratory of Forest Ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China

Suitable habitat is vital for the survival and restoration of a *** the suitable habitat range for lycophytes and ferns is prerequisite for effective species resource conservation and recovery *** this study, we took Athyrium brevifrons as an example, predicted its suitable habitat using a Maxent model with 67 occurrence data and nine environmental variables in Northeast *** area under the curve(AUC) value of independent test data, as well as the comparison with specimen county areal distribution of *** exhibited excellent predictive *** type of environmental variables showed that precipitation contributed the most to the distribution prediction, followed by temperature and *** contribution and permutation importance both indicated that precipitation of driest quarter(Bio17) was the key factor in determining the natural distribution of ***, the reason could be proved by the fern gametophyte *** analysis of high habitat suitability areas also showed the habitat preference of ***: comparatively more precipitation and less fluctuation in the driest *** Mountains, covering almost all the high and medium habitat suitability areas, provide the best ecological conditions for the survival of ***, and should be considered as priority areas for protection and restoration of the wild *** potential habitat suitability distribution map could provide a reference for the sustainable development and utilisation of *** resource, and Maxent modelling could be valuable for conservation management planning for lycophytes and ferns in Northeast China.

关键词： Athyrium brevifrons lycophytes and ferns Maxent suitable habitat Northeast China gametophyte

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Spatial and temporal analysis of beta diversity in the Barro Colorado Island forest dynamics plot, Panama

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Forest Ecosystems 2019年第1期6卷 76-86页

作者： Pierre Legendre Richard Condit Département de sciences biologiques Université de Montréal Field Museum of Natural History Morton arboretum

Background: Ecologists are interested in assessing the spatial and temporal variation in ecological surveys repeated over time. This paper compares the 1985 and 2015 surveys of the Barro Colorado Forest Dynamics plot(BCI), Panama,divided into 1250(20 m × 20 m) ***, spatial analysis: Total beta diversity was measured as the total variance of the Hellinger-transformed community data throughout the BCI plot. Total beta was partitioned into contributions of individual sites(LCBD indices), which were tested for significance and ***, spatial analysis: LCBD indices indicated the sites with exceptional community composition. In 1985,they were mostly found in the swamp habitat. In the 2015 survey, none of the swamp quadrats had significant *** happened to the tree community in the interval?Methods, temporal analysis: The dissimilarity in community composition in each quadrat was measured between time 1(1985) and time 2(2015). Temporal Beta Indices(TBI) were computed from abundance and presence-absence data and tested for significance. TBI indices can be decomposed into B = species(or abundances-per-species) losses and C = species(or abundances-per-species) gains. B-C plots were produced; they display visually the relative importance of the loss and gain components, through time, across the ***, temporal analysis: In BCI, quadrats with significant TBI indices were found in the swamp area, which is shrinking in importance due to changes to the local climate. A published habitat classification divided the BCI forest plot into six habitat zones. Graphs of the B and C components were produced for each habitat group. Group 4(the swamp) was dominated by species(and abundances-per-species) gains whereas the five other habitat groups were dominated by losses, some groups more than ***: We identified the species that had changed the most in abundances in the swamp between T1 and *** analysis supported the hypothesis that the

关键词： Beta diversity B-C plots BCI forest dynamics plot Space-time analysis Temporal beta diversity

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Identification of Suitable Hydrologic Response Unit Thresholds for Soil and Water Assessment Tool Streamflow Modelling

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Chinese Geographical Science 2021年第4期31卷 696-710页

作者： JIANG Liupeng ZHU Jinghai CHEN Wei HU Yuanman YAO Jing YU Shuai JIA Guangliang HE Xingyuan WANG Anzhi Institute of Applied Ecology Chinese Academy of SciencesShenyang 110016China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Forest Ecology and Management^Institute of Applied Ecology Chinese Academy of SciencesShenyang 110016China Shenyang arboretum Chinese Academy of SciencesShenyang 110016China

Use of a non-zero hydrologic response unit(HRU) threshold is an effective way of reducing unmanageable HRU numbers and simplifying computational cost in the Soil and Water Assessment Tool(SWAT) hydrologic modelling. However, being less representative of watershed heterogeneity and increasing the level of model output uncertainty are inevitable when minor HRU combinations are disproportionately eliminated. This study examined 20 scenarios by running the model with various HRU threshold settings to understand the mechanism of HRU threshold effects on watershed representation as well as streamflow predictions and identify the appropriate HRU thresholds. Findings show that HRU numbers decrease sharply with increasing HRU thresholds. Among different HRU threshold scenarios, the composition of land-use, soil, and slope all contribute to notable variations which are directly related to the model input parameters and consequently affect the streamflow predictions. Results indicate that saturated hydraulic conductivity, average slope of the HRU, and curve number are the three key factors affecting stream discharge when changing the HRU thresholds. It is also found that HRU thresholds have little effect on monthly model performance, while evaluation statistics for daily discharges are more sensitive than monthly results. For daily streamflow predictions, thresholds of 5%/5%/5%(land-use/soil/slope) are the optimum HRU threshold level for the watershed to allow full consideration of model accuracy and efficiency in the present work. Besides, the results provide strategies for selecting appropriate HRU thresholds based on the modelling goal.

关键词： hydrologic response unit hydrological model streamflow prediction upper Hunhe River watershed watershed representation uncertainty

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A hybrid swarm population of Pinus densiflora × P. sylvestris inferred from sequence analysis of chloroplast DNA and morphological characters

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Journal of Forestry Research 2013年第1期24卷 53-60页

作者： Young Hee Joung Jerry L. Hill Jung Oh Hyun Ding Mu Juchun Luo Do Hyung Lee Takayuki Kawahara Jeung Keun Suh Mark S. Roh Chonnam national University School of Biological Sciences & TechnologyGwangjuKorea US Department of Agriculture Forest ServiceDorena Genetic Resource CenterWashington State UniversityPullmanWA99164USA Seoul national University College of Agriculture and Life SciencesSeoulKorea Chinese Academy of Agricultural Science Beijing Forestry University College of Resources and Environment Yeungnam University College of Natural ResourcesDepartment of Forest ResourcesGyeongsanKorea Hokkaido Research Center Forestry and Forest Products Research InstituteSapporoJapan. Dankook University School of Bio-Resource ScienceDepartment of Environment HorticultureCheonanKorea. US Department of Agriculture Agricultural Research ServiceUS National ArboretumFloral and Nursery Plants Research UnitBeltsvilleMD 20705USA.

To confirm a hybrid swarm population of Pinus densiflora × P. sylvestris in Jilin, China, we used needles and seeds from P. densiflora, P. sylvestris, and P. densiflora × P. sylvestris collected from natural stands or experimental stations to study whether shoot apex morphology of 4-year old seedlings can be correlated with the sequence of a chloroplast DNA simple sequence repeat marker （cpDNA SSRs）. Total genomic DNA was extracted and subjected to sequence analysis of the pine cpDNA SSR marker Pt15169. Results show that morphological characters from 4-year old seedlings did not correlate with sequence variants of this marker. Marker haplotypes from all P. sylvestris trees had a CTAT element that was absent from all sampled P. densiflora trees. However, both haplotype classes involving this insertion/deletion element were found in a P. densiflora × P. sylvestris population and its seedling progeny. It was concluded that the P. densiflora × P. sylvestris accessions sampled from Jilin, China resulted from bi-directional crosses, as evidenced by both species’ cpDNA haplotypes within the hybrid swarm population.

关键词： P. sylvestris var. sylvestriformis chloroplast DNA simplesequence repeat sequencing hybrid swarm population

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NEW TAXA OF ILEX FROM THE PEOPLE'S REPUBLIC OF CHINA

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植物分类与资源学报 1984年第1期 43-54页

作者： T.R.DUDLEY 20002 3501 New York Ave.N.E. Agricultural Research Service D.C. Research Botanist U.S.A. U.S.Department of Agriculture U.S.national arboretum Washington

llex strigillosa ***,***. 〔Section Pseudoaquifolium S.-***(1950)Series Lougecaudatae S.-***(1950)〕. DIAGNOSIS: A *** S.-***(1950)affinis sed ramulis et gemmis terminalis,dense cinerascentibus puberulento-strigillosis,stipulis tenuiter membranaceis minutis0.1mm longis vel minus fugacibus cito caducis,petiolis denso cinerascentibuspuberulento-strigillosis aliquado subglabris laminis versus,laminis foliorum mino-ribus 4—7.5cm longis 1—2cm latis basibus acutis ad attenuatis apicibussensim acuminatis vel caudato-acuminatis acuminibus brevioribus 5—10(—15)mm longis marginibus integris vel subintegris conspicue sinuolatis et apicibus

关键词： NEW TAXA OF ILEX FROM THE PEOPLE’S REPUBLIC OF CHINA Pro CI IO

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