Investigation on sexual reproduction and invasion risk of 12 alien Compositae species
-
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.
-
Keywords:
- Alien plant /
- Invasion risk /
- Pollination system /
- Reproductive assurance /
- Sexual reproduction
-
-
[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.
-
期刊类型引用(11)
1. 王春晓,钱志军,黄运腾,毛玥,钟址非,曹晟烜,王生生,王迎雪,邓传远. 平潭岛不同林下草本层外来入侵植物多样性特征及环境因子解释. 应用与环境生物学报. 2025(01): 12-22 . 百度学术
2. 郭智,徐广春,刘红江,岳骞,朱普平,盛婧. 蜜源植物波斯菊花带对水稻害虫的防控效应. 江苏农业科学. 2025(02): 166-171 . 百度学术
3. 李彦连,胡猛,李国栋,李红燕,张业猛,白俊玲. 济宁市外来入侵植物的区系成分及多样性分析. 绿色科技. 2024(02): 78-83 . 百度学术
4. 纪霜,闫淑君,杨丽,叶佳伟,廖剑威. 白花鬼针草访花昆虫种类及其访花行为. 东北林业大学学报. 2023(02): 77-81 . 百度学术
5. 刘帅,彭方仁. 薄壳山核桃花粉活力测定方法比较. 经济林研究. 2023(02): 110-119 . 百度学术
6. 卢世君,邓玉琳,李建,宋晨晨,赵娟娟. 深圳市建成区城市植物的种类构成. 西南大学学报(自然科学版). 2023(12): 85-96 . 百度学术
7. 张红丽,潘曲波,彭麟迪,郑成洁,王南媛. 滇池东岸湿地公园园林植物外来种的生态风险评价. 西部林业科学. 2022(02): 113-123+154 . 百度学术
8. 龚莉,翟伟,吕丹,张世航,戈玉莹,洪志,陶冶. 不同生境入侵植物北美车前繁殖器官性状变异与权衡特征. 植物研究. 2022(04): 544-555 . 百度学术
9. 魏子璐,朱峻熠,潘晨航,王义英,胡沁沁,周颖,金水虎. 宁波市外来入侵植物及其入侵风险评估. 浙江农林大学学报. 2021(03): 552-559 . 百度学术
10. 何奕成,田大栓,汪金松,符义稳,魏学红,李景文. 中国不同草本功能群叶片钾含量的空间格局及控制因素. 北京林业大学学报. 2021(08): 83-89 . 百度学术
11. 胡沁沁,周颖,华春霞,庞博文,潘晨航,金水虎. 浙江农林大学校园外来入侵植物及其入侵风险等级评估. 杂草学报. 2021(02): 28-35 . 百度学术
其他类型引用(12)
计量
- 文章访问数: 1020
- HTML全文浏览量: 4
- PDF下载量: 1349
- 被引次数: 23