Chen Qiong, Li Xiao-Xia, Wang Hui. Investigation on sexual reproduction and invasion risk of 12 alien Compositae species[J]. Plant Science Journal, 2018, 36(3): 345-353. DOI: 10.11913/PSJ.2095-0837.2018.30345
Citation: Chen Qiong, Li Xiao-Xia, Wang Hui. Investigation on sexual reproduction and invasion risk of 12 alien Compositae species[J]. Plant Science Journal, 2018, 36(3): 345-353. DOI: 10.11913/PSJ.2095-0837.2018.30345陈琼, 李肖夏2, 王慧1, ,
1. 华中农业大学园艺林学学院/湖北省林业信息工程技术研究中心, 武汉 430070;
2. 中国林业科学研究院湿地研究所, 北京 100091
详细信息
作者简介:陈琼(1993-),女,本科,研究方向为传粉生物学(E-mail:chenqiong19930922@163.com)。
通讯作者:王慧,E-mail:wanghui@mail.hzau.edu.cn
中图分类号: Q945;Q949.783.5
计量 文章访问数: 0588 HTML全文浏览量: 0 PDF下载量: 01321 出版历程 收稿日期: 2017-10-11 网络出版日期: 2022-10-31 发布日期: 2018-06-271. College of Horticulture & Forestry Sciences/Hubei Engineering Technology Research Center for Forestry Information, Huazhong Agricultural University, Wuhan 430070, China;
2. Institute of Wetland Research, Chinese Academy of Forestry, Beijing 100091, China
摘要
摘要: 菊科植物具有极强的有性繁殖能力,对外来菊科观赏植物的引进存在极高的入侵风险。本研究以武汉常见的菊科12种外来观赏植物为对象,通过有性繁殖特征调查,研究植株的花部特征、花粉活力、传粉系统、种子产量,分析各物种有性繁殖能力的差异,评估其入侵能力。结果显示,多数物种可在隔绝传粉者情况下结实;访花昆虫类型多样,共观察到26种访花昆虫,其中膜翅目蜂类是主要的传粉者;结实情况具有一定差异。综合考虑花粉活力、传粉情况和结实情况,认为黑心金光菊(Rudbeckia hirta L.)、松果菊(Echinacea purpurea (L.)Moench)、大花金鸡菊(Coreopsis grandiflora Hogg.)、蛇目菊(Sanvitalia procumbens Lam.)的有性繁殖竞争力较高,对本地传粉环境可能有较大影响。本研究对近缘物种有性繁殖特征的综合分析结果可为评估外来物种的入侵风险提供一定的参考。
Abstract: Plant species of Compositae exhibit superior sexual reproduction. The introduction of Compositae species for ornamental use may cause a high invasion risk. In this study, we investigated the sexual reproductive traits of 12 ornamental Compositae species. The floral characteristics, pollen viability, pollination system, and seed production were compared among species to assess their sexual reproductive ability and invasion risk. Results showed that most plant species could reproduce without pollinators. In addition, 26 species of insects, categorized into six orders and 16 families, were observed to visit the experimental flowers. Bees were the most frequent pollinators, followed by butterflies and flies. Plant species differed in pollinator assemblage and visitation rate, as well as reproductive success. Considering pollen viability, pollination system and seed production, we regarded Rudbeckia hirta L., Echinacea purpurea (L.) Moench, Coreopsis grandiflora Hogg., and Sanvitalia procumbens Lam. to be successful in pollination and sexual reproduction in this region, with a high risk of invasion. By comparing the sexual reproductive traits among related species, we provide instructions for assessing the invasion risk of introduced plant species.
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参考文献(2)
[1]Wang H, Wang Q, Bowler PA, Xiong W. Invasive aquatic plants in China[J]. Aquat Invasions, 2016, 11(1):1-9.
[2] 范晓虹, 李尉民. 保护我国生物安全的检疫对策研究[J]. 生物多样性, 2001, 9(4):439-445.Fan XH, Li WM. Research on quarantine strategy for biosafety protection in China[J]. Biodiversity Science, 2001, 9(4):439-445.
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