Effects of clonal integration and nitrogen supply on responses of a clonal plant to short-term herbivory
作者机构：School of Nature ConservationBeijing Forestry UniversityBeijing 100083China Institute of BotanyChinese Academy of SciencesBeijing 100093China College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070China Institute of Wetland Ecology&Clone Ecology/Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and ConservationTaizhou UniversityTaizhou 318000China
出 版 物：《Journal of Plant Ecology》 (植物生态学报（英文版）)
年 卷 期：2019年第12卷第4期
页 面：624-635页
核心收录：
学科分类：0711[理学-系统科学] 07[理学] 08[工学] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 071102[理学-系统分析与集成] 081103[工学-系统工程]
基 金：This work was supported by National Key Research and Development Program of China(2016YFC1201101,2016YFC1202102) the National Natural Science Foundation of China(31500331,31670428) the Fundamental Research Funds for the Central Universities(2015ZCQ-BH-01) Undergraduate Innovation and Entrepreneurship Training Program of Beijing Forestry University(X201710022152)
主 题：Agasicles hygrophila Alternanthera philoxeroides foliar herbivory invasive species physiological integration
摘 要：Aims Clonal integration,*** sharing between interconnected ramets,can help clonal plants tolerate abiotic ***,few studies have directly examined the ecological significance of clonal integration in the ability of clonal plants to tolerate biotic stress such as *** We grew clonal fragments of an invasive clonal plant Alternanthera philoxeroides,each consisting of an apical part(relatively young)and a basal part(relatively old),at two levels(low and high)of soil nitrogen(N).For each fragment,the apical part was subjected to either no herbivory or herbivory for 2 weeks by a specialist insect,Agasicles hygrophila,and was either connected with or discon-nected from the basal part not subjected to *** Findings Herbivory in the apical part severely reduced leaf growth(leaf mass,leaf number or leaf area)and ramet production of both apical and basal parts,and increased root to shoot ratio of the apical *** of herbivory and soil N,stem connection between the apical and the basal part decreased root to shoot ratio of the ap-ical part,but did not change its growth ***,con-nection increased stem N concentration of the apical part growing under high-N supply and decreased stem carbon(C)concentration of the apical part under low-N *** contrast,connection in-creased root to shoot ratio of the basal part,but reduced its leaf and ramet *** also increased leaf and stem C concentrations of the basal part under low-N ***,clonal integration can be beneficial for the early development of young *** ramets,but not for their local adaptation to herbivory damage by ***.
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