首页 | 官方网站   微博 | 高级检索  
     

环纹榕传粉榕小蜂的传粉模式
引用本文:赵江波,彭艳琼,杨大荣.环纹榕传粉榕小蜂的传粉模式[J].昆虫学报,2012,55(2):183-188.
作者姓名:赵江波  彭艳琼  杨大荣
作者单位:1. 中国科学院西双版纳热带植物园,昆明650223;中国科学院研究生院,北京100049
2. 中国科学院西双版纳热带植物园,昆明,650223
基金项目:中国科学院“西部之光”人才培养计划西部博士科研启动资助项目;国家自然科学基金项目(30970403,30970439)
摘    要:榕小蜂的传粉结构、 传粉行为以及寄主榕树的花药胚珠比是判断榕-蜂互惠系统传粉模式的重要依据。本研究于2010年8月至2011年6月对位于云南西双版纳地区的试验样树环纹榕Ficus annulata进行观察, 对出榕果的环纹榕传粉榕小蜂Deilagaon annulatae进行电镜扫描和室内显微镜下对其进行行为观察。电镜扫描显示: 环纹榕传粉榕小蜂D. annulatae位于胸部的花粉筐消失, 具一片可粘附花粉的毛区, 提示其属于被动传粉的种类。传粉行为观察发现, 该蜂没有主动采集花粉的行为, 显然存在的花粉刷已丧失了主动收集花粉的功能。寄主植物环纹榕F. annulata属于典型的自动散粉让榕小蜂沾附花粉的榕树种类。环纹榕传粉榕小蜂D. annulatae是西双版纳热带地区已知58种传粉榕小蜂中唯一体色为黄色的种类, 该蜂偏爱在低温的夜晚出蜂。除了传粉榕小蜂, 一种金小蜂Lipothymus sp.也在雌花期进入榕果内繁殖, 并且其数量显著高于环纹榕传粉榕小蜂D. annulatae (P<0.0001)。自然单果的繁殖中, 环纹榕传粉榕小蜂的数量显著高于种子数量, 呈现出榕-蜂互惠系统中罕见的传粉榕小蜂主导的局面。综合榕-蜂的传粉特征显示, 环纹榕F. annulata及其传粉榕小蜂D. annulatae互惠系统是被动传粉的模式。

关 键 词:环纹榕传粉榕小蜂    环纹榕    传粉    传粉结构    传粉行为    出蜂时间  

Pollination pattern of Deilagaon annulatae (Hymenoptera: Agaonidae),a pollinator of Ficus annulata in Yunnan, southwestern China
ZHAO Jiang-Bo , PENG Yan-Qiong , YANG Da-Rong.Pollination pattern of Deilagaon annulatae (Hymenoptera: Agaonidae),a pollinator of Ficus annulata in Yunnan, southwestern China[J].Acta Entomologica Sinica,2012,55(2):183-188.
Authors:ZHAO Jiang-Bo  PENG Yan-Qiong  YANG Da-Rong
Affiliation:1,* (1. Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China)
Abstract:Pollination structure and behavior of fig wasps, and the pollen-ovule (P/O) ratio of their host figs are all important indicators of their pollination mode. Field observation was made on Ficus annulata from August 2010 to June 2011 in Xishuangbanna, Yunnan, southwestern China and the pollination structures of Deilagaon annulatae, the pollinator of F. annulata, were examined through Scanning Electron Microscopes (SEM). The results showed that two pollen pockets disappeared and pollen grains can adhere to the bristles in peristaethium, which are all characteristics of a passive mode. No active pollen collecting behavior was observed under microscope, suggesting that the existing coxal combs have lost the function of actively collecting the pollen. Meanwhile, F. annulata is a typical passive pollinated species with a large number of male flowers in each syconium; the P/O ratio is high; and the pollen grains spread when the mature anthers split automatically. Given evidences from both sides, we deduce that the pollination mode of this system is passive. D. annulatae is the only fig wasp species reported with yellow body color in Xishuangbanna. They prefer emerging and acting at night when the temperature is low. During the receptive phase, Lipothymus sp. is the only non-pollinator that enters the fruit to lay eggs there along with the pollinator, and with much higher abundance. In a syconium, the number of wasp offspring is significantly greater than that of the seeds, showing a rare fig-wasp mutualism system in which fig wasps act as the dominator.
Keywords:Deilagaon annulatae  Ficus annulata  pollination  pollination structure  pollination behavior  emergence time
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《昆虫学报》浏览原始摘要信息
点击此处可从《昆虫学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号