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Root and xylem ABA changes in response to soil drying in two woody plants

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Chinese Science Bulletin 1999年第24期44卷 2236-2241页

作者： Huafang Wang Jianhua Zhang Jiansheng Liang weilun yin Hong Kong Baptist Univ Dept Biol Hong Kong Peoples R China Beijing Forestry Univ Coll Plant Sci Beijing 100083 Peoples R China

Two woody plants, Platycladus orientalise (tolerant to drought) and Acacia auriculi-formis (sensitive to drought), have been subjected to rapid and slow soil drying. ABA levels in their roots and xylem sap have been determined using radioimmunoassay (RIA, sensitivity is 0.4 pmol per assay vial) with a monoclonal antibody against ( + )-ABA. ABA contents of P. orientalise and A. auriculiformis growing in well watered soil are 0.3 and 2.5 nmol-gDW-1 in

关键词： Platycladus orientalise Acacia auriculiformis root xylem sap ABA soil drying.

Relative effects of phylogeny,biological characters and environments on leaf traits in shrub biomes across central Inner Mongolia,China

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Journal of Plant Ecology 2013年第3期6卷 220-231页

作者： Chao Liu Xiangping Wang Xian Wu Shuang Dai Jin-Sheng He weilun yin The Key Laboratory of Silviculture and Conservation of the Ministry of Education and the National Engineering Laboratory for Forest Genetics and Tree BreedingBeijing Forestry UniversityBeijing 100083China Department of Ecology College of Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking UniversityBeijing 100871China

Aims Understanding the drivers for leaf traits is critical to improving our predictions on ecosystems'responses to global *** patterns of leaf traits are shaped by phylogenetic,biological and environmental factors ***,till now few studies have examined how these factors influenced leaf traits together,and how their effects differed at the within-and among-site *** We sampled leaf traits from a 1100 km shrub-biome transect across central Inner-Mongolia,including leaf mass per area(LMA),mass-based photosynthetic rate,nitrogen(N)and phosphorus(P)*** examined the effects of phylogenetic,biological(height and growth rate)and environmental(climate and soil)fac-tors on leaf traits with mixed-model analyses of *** partitioning method was used to separate the joint and independent effects of these three types of *** Findings(i)Climate and soil fertility(total or available nutrient concentra-tions)together explained 11.4-41.4%of among-site variations,with remarkable difference among traits.(i)Height and height growth rate together explained 0.4--31.9%of trait variations(mostly among-site variations).Our results could only weakly support the ability of leaf traits as predictors for whole-plant growth.(ii)LMA was negatively related to height,which was consistent with the resource-use strategy hypothesis but incon-sistent with the hypotheses proposed for coexisting trees,suggest-ing that the LMA--height relationship is shaped by rather different mechanisms between the within-and among-communities lev-els.(iv)The variation partitioning analysis showed that,the rela-tionships between leaf traits and biological characters largely reflected the differences in both leaf traits and biological char-acters among species that occupying different *** relative importance of phylogenetic,biological and environmental fac-tors differed remarkably among leaf traits,between the within-and among-communi

关键词： leaf trait phylogeny height growth rate soil fertility climate

Genome-wide association study of 23 f lowering phenology traits and 4 f loral agronomic traits in tree peony (Paeonia section Moutan DC.) reveals five genes known to regulate f lowering time

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Horticulture Research 2023年第2期10卷 118-133页

作者： Yuying Li Lili Guo Zhanying Wang Dehui Zhao Dalong Guo John E.Carlson weilun yin Xiaogai Hou College of Agronomy/College of Tree Peony Henan University of Science and TechnologyLuoyangHenan471023China Luoyang Academy of Agricultural and Forestry Sciences LuoyangHenan471000China College of Forestry Henan University of Science and TechnologyLuoyangHenan471023China Department of Ecosystem Science and Management Pennsylvania State UniversityUniversity ParkPA 16802USA College of Biological Sciences and Technology Beijing Forestry UniversityBeijing 100083China

Tree peony is a unique traditional f lower in China,with large,fragrant,and colorful f ***,a relatively short and concentrated f lowering period limits the applications and production of tree peony.A genome-wide association study(GWAS)was conducted to accelerate molecular breeding for the improvement of f lowering phenology traits and ornamental phenotypes in tree peony.A diverse panel of 451 tree peony accessions was phenotyped for 23 f lowering phenology traits and 4 f loral agronomic traits over 3 *** by sequencing(GBS)was used to obtain a large number of genome-wide single-nucleotide polymorphisms(SNPs)(107050)for the panel genotypes,and 1047 candidate genes were identified by association ***-two related genes were observed during at least 2 years for f lowering,and seven SNPs repeatedly identified for multiple f lowering phenology traits over multiple years were highly significantly associated with five genes known to regulate f lowering *** validated the temporal expression profiles of these candidate genes and highlighted their possible roles in the regulation of f lower bud differentiation and f lowering time in tree *** study shows that GWAS based on GBS can be used to identify the genetic determinants of complex traits in tree *** results expand our understanding of f lowering time control in perennial woody *** of markers closely related to these f lowering phenology traits can be used in tree peony breeding programs for important agronomic traits.

关键词： breeding traits tree

Molecular insights into self-incompatibility systems:From evolution to breeding

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Plant Communications 2024年第2期5卷 23-45页

作者： Diyang Zhang Yuan-Yuan Li Xuewei Zhao Cuili Zhang Ding-Kun Liu Siren Lan weilun yin Zhong-Jian Liu Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization Fujian Agriculture and Forestry UniversityFuzhou 350002China College of Forestry Fujian Agriculture and Forestry UniversityFuzhou 350002China College of Biological Sciences and Technology Beijing Forestry UniversityBeijing 100083China

Plants have evolved diverse self-incompatibility(SI)systems for *** Darwin’s time,consid-erable progress has been made toward elucidating this unrivaled reproductive *** advances in interdisciplinary studies and applications of biotechnology have given rise to major break-throughs in understanding the molecular pathways that lead to SI,particularly the strikingly different SI mechanisms that operate in Solanaceae,Papaveraceae,Brassicaceae,and *** best-un-derstood SI systems,together with discoveries in other"nonmodel"SI taxa such as Poaceae,suggest a complex evolutionary trajectory of SI,with multiple independent origins and frequent and irreversible *** exploration of self-/nonself-discrimination signaling cascades has revealed a compre-hensive catalog of male and female identity genes and modifier factors that control *** also enable the characterization,validation,and manipulation of SI-related factors for crop improvement,helping to address the challenges associated with development of inbred ***,we review current knowledge about the evolution of SI systems,summarize key achievements in the molecular basis of pol-len‒pistil interactions,discuss potential prospects for breeding of SI crops,and raise several unresolved questions that require further investigation.

关键词： self-incompatibility S-RNase evolution genome editing crop improvement

Regulation of cytokinin biosynthesis using PtRD26pro-IPT module improves drought tolerance through PtARR10-PtYUC4/5-mediated reactive oxygen species removal in Populus

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Journal of Integrative Plant Biology 2022年第3期64卷 771-786页

作者： Hou-Ling Wang Qi Yang Shuya Tan Ting Wang Yi Zhang Yanli Yang weilun yin Xinli Xia Hongwei Guo Zhonghai Li National Engineering Laboratory for Tree Breeding College of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing100083 China Department of Biology Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education InstitutesSouthern University of Science and Technology(SUSTech)Shenzhen518055 China

Drought is a critical environmental factor which constrains plant survival and *** engineering provides a credible strategy to improve drought tolerance of ***,we generated transgenic poplar lines expressing the isopentenyl transferase gene(IPT)under the driver of Pt RD26 promoter(PtRD26 pro-IPT).Pt RD26 is a senescence and drought-inducible NAC transcription *** RD26 pro-IPT plants displayed multiple phenotypes,including improved growth and drought *** analysis revealed that auxin biosynthesis pathway was activated in the PtRD26 pro-IPT plants,leading to an increase in auxin *** analysis revealed that ARABIDOPSIS RESPONSE REGULATOR10(PtARR10),one of the type-B ARR transcription factors in the cytokinin pathway,was induced in PtRD26 pro-IPT plants and directly regulated the transcripts of YUCCA4(Pt YUC4)and YUCCA5(PtYUC5),two enzymes in the auxin biosynthesis *** of PtYUC4 enhanced drought tolerance,while simultaneous silencing of PtYUC4/5 evidently attenuated the drought tolerance of Pt RD26 pro-IPT ***,Pt YUC4/5 displayed a conserved thioredoxin reductase activity that is required for drought tolerance by deterring reactive oxygen species *** work reveals the molecular basis of cytokinin and auxin interactions in response to environmental stresses,and shed light on the improvement of drought tolerance without a growth penalty in trees by molecular breeding.

关键词： auxin cytokinin drought tolerance leaf senescence PtARR PtYUC ROS

Verticillium dahliae Secretory Effector PevD1 Induces Leaf Senescence by Promoting ORE1-Mediated Ethylene Biosynthesis

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Molecular Plant 2021年第11期14卷 1901-1917页

作者： Yi Zhang Yuhan Gao Hou-Ling Wang Chengcheng Kan Ze Li Xiufen Yang weilun yin Xinli Xia Hong Gil Nam Zhonghai Li Hongwei Guo Beijing Advanced Innovation Center for Tree Breeding by Molecular Design National Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing 100083China The State Key Laboratory for Biology of Plant Disease and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China Center for Plant Aging Research Institute for Basic ScienceDaegu 42988Republic of Korea New Biology Daegu Gyeongbuk Institute of Science and Technology(DGIST)DaeguSouth Korea Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes Department of BiologySouthern University of Science and Technology(SUSTech)ShenzhenGuangdong 518055China

Leaf senescence,the final stage of leaf development,is influenced by numerous internal and environmental *** far,how biotic stresses such as pathogen infection regulate leaf senescence is ***,we found that the premature leaf senescence caused by a soil-borne vascular fungus Verticillium dahliae in Arabidopsis was impaired by the mutation of a protein elicitor from *** 1(PevD1).Constitutive or inducible overexpression of PevD1 accelerated Arabidopsis leaf senescence.A senescence-associated NAC transcription factor,ORE1,was targeted by ***1 interacted with and stabilized ORE1 protein by disrupting its interaction with the RING-type ubiquitin E3 ligase *** of ORE1 suppressed the premature senescence caused by overexpressing *** of ORE1 or PevD1 led to enhanced ethylene production,and ORE1 mediated PevD1-induced ethylene biosynthesis by directly binding to the ACS6 ***-of-function of ACSs suppressed ***-induced leaf senescence in ORE1-overexpressing ***,PevD1 also interacted with Gossypium hirsutum ORE1(GhORE1),and virus-induced gene silencing of GhORE1 delayed ***-triggered leaf senescence in cotton,indicative of the existence of a conserved mechanism in ***,our study demonstrates that *** induces leaf senescence by secreting the effector PevD1 to regulate the ORE1-ACS6 cascade,providing new insight into biotic stress-induced senescence in plants.

关键词： ACS6 ORE1 PevD1 Verticillium dahliae leaf senescence

Studies on the Dynamics of Endogenous GAs, ABA and IAA in the Shoot Apex of Chinese Pine in Relation to Male Cone Bud Initiation

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北京林业大学学报 1992年第S2期14卷 55-63页

作者： yin weilun Jin Youju Wang ShashengForest Resources College, Beijing Forestry UniversityZhang YunzhongBeijing Botanical Garden. Beijing 100093

The endogenous GAs, ABA and IAA in the shoot apices of 8-year-old Chinese pines, flowered, non-flowered and non-flowered but treated with GA4/7 were analyzed by *** results demonstrated that GA3 and GA9 levels were obviously higher in flowered plants than in non-flowered. A peak value of GA3 in flowered plants occurred after appearance of the earliest auxiliary bud primorda which had the possibility of transforming into male cone bud primordia and before the morphological initiation of male cone bud primordia. Exogenously applied GA4/7 could enhance the endogenous GA3 and GA9, this may benefit the promotion of male cone buds in Chinese pine. The relations among ex-ogenously applied GA4/7 endogenous GAs, ABA and IAA in the shoot apices, and the initiation of male cone bud are discussed.

关键词： Chinese pine flowering promotion male cone bud initiation exogenously applied GA4/7. endogenous GAs ABA IAA GC-MS-SIM analysis

Editorial-Forest Ecosystems

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Forestry Studies in China 2014年第1期16卷 1-3页

作者： yin weilun Klaus v Gadow Beijing Forestry University University of Gōttingen University of Stellenbosch

Welcome to this first issue of Forest Ecosystems,a peerreviewed,international Open Access journal managed and financed by the Beijing Forestry University,and published in cooperation with *** journal will seek to provide an effective platform for sharing knowledge in a paperless publication process where all published articles may be freely downloaded and will be permanently *** Editorial Board includes 30distinguished scientists from 13 countries:ecologists,economists,modelers and an environmental consultant with a science *** this launch editorial,fol-

关键词： Editorial-Forest Ecosystems

Invitation to Contribute to FASE

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Frontiers of Agricultural Science and Engineering 2014年第4期 350-351页

作者： Shorgan Bou weilun yin Ning Li the Chinese Academy of Engineering(CAE) Chinese Society of Forestry Chinese Association of Agricultural Science Societies the Popiar Committee of China State Key Laboratory for Agrobiotechnology in China Agricultural University Beijing Association for Science and Technology

Colleagues,It is our great pleasure to introduce you to the Frontiers of Agricultural Science and Engineering(FASE),a new international journal launched in *** was founded jointly by the Chinese Academy of Engineering...

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