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Linkages among the functional traits,insect visitation rate and seed set of Gentiana taxa on the Tibetan Plateau

Journal of Mountain Science 2022年第8期19卷 2312-2321页

作者： DAI Wen-fei GAO Rui HE Meng-ying YANG Yu-lian LI Fang-lan MU Jun-peng Ecological Security and Protection Key Laboratory of Sichuan Province Mianyang Normal UniversityMianyang 621000China Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041China

Maximum plant height(H_(max)),stem tissue mass density(SD),leaf mass per area(LMA),and relative growth rate(RGR)have all been linked to flowering ***,it is still unknown whether these functional traits varying with flowering phenology are related to other floral traits associated with pollinator preference and reproductive *** investigated the relationship between vegetative and floral traits,as well as the rates of insect visitation and seed set of fiveGentiana species in eastern Tibetan *** results showed that flowering onset and flowering offset time were all found to be positively correlated with the H_(max),SD,and LMA,but negatively correlated with the *** onset time was positively correlated with corolla diameter and pollen grain number,whereas was negatively correlated with flower number and flower *** rates of insect visitation were positively related to flowering onset time,pollen grain number,corolla diameter,and seed set,but negatively related to flower number and *** flowering species have higher RGR but lower SD,LMA andH_(max),as well as smaller flowers,fewer pollen grains,longer flower longevity,and lower insect visitation rates than late-flowering plant *** findings indicate that floral traits are related to vegetative traits in Gentiana *** these plant trait relationships were associated with pollinator preference,and plant reproductive success of eastern Tibetan *** speculate that these traits relationships are likely adaptive in unpredictable and often pollinator-limited environments in the Tibet alpine meadows.

关键词： Life history strategy Mating system reproductive efficiency Alpine plant

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Mating and reproductive characteristics of the pathogenic nematode Bursaphelenchus xylophilus

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Journal of Forestry Research 2021年第3期32卷 1281-1286页

作者： Yongxia Li Mengge Gao Baojun Liu Xuan Wang Jiafu Hu Zhenyu Liu Xingyao Zhang Laboratory of Forest Pathogen Integrated Biology Research Institute of Forestry New TechnologyChinese Academy of ForestryBeijing 100091People’s Republic of China College of Forestry Zhejiang Agriculture and Forestry UniversityLin’an 311300ZhejiangPeople’s Republic of China College of Plant Protection Shandong Agricultural UniversityTai’an 271018ShandongPeople’s Republic of China Co-Innovation Center for Sustainable Forestry in Southern China Nanjing Forestry UniversityNanjing 210037JiangsuPeople’s Republic of China

Pine wood nematode(B ursaphelenchus xylophilus),one of the most destructive invasive species,has caused extremely serious economic,ecological and social losses in many countries throughout the *** the high reproductive rate of *** PWN is the main cause of rapid death of its pine hosts(Pinus spp.),understanding the reproductive and population biology and the ecology of this nmatode are of great *** study mainly focused on analyzing the mating process and population structure under different combinations of sex ratios for *** efficiency of *** peaked when the sex ratio(female to male)was 3.4:*** of the mating process for the different sex-ratio combinations indicated that *** had evolved alternative reproductive strategies to cope with complex copulating conditions to obtain a suitable population structure for further *** research provides fundamental information on the mechanism that is responsible for the rapid population growth of ***.

关键词： reproductive strategy reproductive efficiency Sex ratio Population structure Pine wood nematode

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