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| 螺旋粉虱产卵行为及产卵分泌物的形态和化学成分 | |
| 引用本文： | 廖永林,林党恩,吴伟坚,符悦冠.螺旋粉虱产卵行为及产卵分泌物的形态和化学成分[J].昆虫学报,2010,53(7):786-793. |
| 作者姓名： | 廖永林 林党恩 吴伟坚 符悦冠 |
| 作者单位： | 1. 华南农业大学昆虫生态研究室,广州,510642 2. 福建省农业科学院植物保护研究所,福州,350007 3. 中国热带农业科学院环境与植物保护研究所,海南儋州,571737 |
| 基金项目： | 公益性行业(农业)科研专项 |
| 摘 要： | 螺旋粉虱Aleurodicus dispersus Russell具独特的产卵过程--成虫将卵产在叶片上排列成螺旋状并覆盖丝状蜡泌物。本研究利用数码摄像机拍摄记录螺旋粉虱的产卵过程,并采用体视显微镜、扫描电镜及气相色谱/质谱联用研究产卵分泌物的结构和化学成分。结果表明：单头雌成虫产卵时可形成典型螺旋轨迹,当其他雌成虫加入产卵时,其产卵行为包括跨越螺旋轨迹后继续在外围扩大螺旋圈、仅在螺旋轨迹表面穿过及在螺旋轨迹外围直接产卵3种情况。 在体视镜及扫描电镜下产卵分泌物呈交错的白色丝状结构。 另用GC/MS联用检测仪检测发现产卵分泌物主要是一些饱和长链烃（66.21%）和芳香酯类（26%）,同时有少量酸和酚。 其中烃类化合物含有3种碘代物（10.64%）,其他为直链烃类,碳原子数介于C8～C30;芳香酯类化合物有3种,碳原子数介于C16～C24,其中含量最大的是邻苯二甲酸二丁酯（21.19%）。 最后讨论了产卵分泌物在吸引初孵爬虫、抵御天敌及阻碍其他植食性者进入螺旋圈的可能性。 |
| 关 键 词： | 螺旋粉虱 产卵行为 产卵分泌物 形态结构 化学成分 |
Oviposition behavior of female adults of Aleurodicus dispersus (Homoptera:Aleyrodidae)and the morphology and chemical composition of their oviposition secretion |
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| LIAO Yong-Lin,LIN Dang-En,WU Wei-Jian,FU Yue-Guan.Oviposition behavior of female adults of Aleurodicus dispersus (Homoptera:Aleyrodidae)and the morphology and chemical composition of their oviposition secretion[J].Acta Entomologica Sinica,2010,53(7):786-793. | |
| Authors: | LIAO Yong-Lin LIN Dang-En WU Wei-Jian FU Yue-Guan |
| Abstract: | The behavioral sequence of the oviposition process can be quite distinct in the spiralling whitefly Aleurodicus dispersus Russell （Homoptera: Aleyrodidae）: egg spirals covered with silken wax that the adult whitefly deposits on foliage. Females were recorded with a digital camera in order to analyze their oviposition behavior. The morphology of silken wax produced by female adults was examined by stereoscope and scanning electron microscope and its chemical components were determined by GC/MS. One female alone could lay a typical egg spiral. Once another female joined in, the oviposition behavior could take place as first traversing the typical spirals and then around the spirals, only across the pioneer spirals, or directly around the pioneer spirals. The female adults secreted their silken wax with white color and intertwined structure. The main components of oviposition secretion were long-chain saturated hydrocarbons （66.21%） and aromatic esters （26%）, together with several other acids and phenols. Three iodine compounds （10.64%） as well as straight-chain hydrocarbons with carbon atoms ranging from C8 to C30 were identified in saturated hydrocarbons. Three aromatic esters with carbon atoms ranging from C16 to C24 were found, and the relative content of dibutyl phthalate （21.19%） was greater than others. Possible roles of the silken wax in attracting the crawlers, protecting against natural enemies and providing a barrier to other herbivores are discussed. |
| Keywords: | Aleurodicus dispersus oviposition behavior oviposition secretion morphology chemical composition |
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