本文主要研究内容
作者姜晓环（2019）在《智利小植绥螨生殖与精子转移结构研究》一文中研究指出：植绥螨科捕食螨是世界天敌产业化生产的重要类群,在小型吸汁性有害生物如叶螨、蓟马、粉虱等的生物防治中发挥着十分重要的作用。近年来,除了作为天敌外,植绥螨科捕食螨的一些生物学习性等也受到关注。但是由于植绥螨自身的特征限制了很多试验的开展。目前关于植绥螨内部的生殖结构以及交配过程中精子转移的结构都还不清楚。本研究以国际上应用最广、生物学研究相对较多的品种智利小植绥螨为研究对象,应用透射电镜、扫描电镜和细胞染色技术,研究了智利小植绥螨生殖与精子转移结构,以及交配过程中精子由雄螨到雌螨的转移过程;明确了雄螨在交配过程中外精包的产生过程及其内部的精子形态和精子数量的变化,试验结果为进一步了解其生殖与性比调控,研究生殖机理提供了可能方法和依据。研究表明,智利小植绥螨雄螨的内部生殖结构由射精管、贮精囊、输精管和精巢四部分组成。交配时雄螨的导精趾从螯肢顶端伸出,其中一个导精趾向下弯曲接近90度;导精趾基部与螯肢上的动趾相连,在两者连接处存在关节使导精趾可以180°旋转,并在此处形成一个连锁结构;导精趾内部有一中空的腔,末端以开口的方式结束;导精趾基部附着一附属结构长度约是导精趾的2/3。智利小植绥螨雌螨的导精孔位于足Ⅲ和足Ⅳ之间靠近腹板处,其直径约7μm;交配时两个导精趾其中一个通过导精孔进入雌螨体内的囊状结构里;雌螨的受精囊有颈,与一条细管道相通。智利小植绥螨的精子进入外精包后,外精包在导精趾的协助下与螯肢基部的小孔相连,随后与外精包相连接的螯肢上的导精趾进入雌螨的导精孔内部。由此精子完成了从雄螨到雌螨的转移。智利小植绥螨的外精包呈梨形,外精包自交配开始的3min内由雄螨的生殖孔产出,产出后沿着雄螨的颚基沟到达螯肢基部,与一个螯肢基部上的小孔相连。精液通过这个小孔从导精趾内部的空腔到达导精趾端部的小孔,进入雌螨的导精孔。再交配开始的前5min没有在外精包内观察到精子,在接下来的10min内外精包内的精子数达到最大值(52),随后外精包内的精子数开始减少,交配至75min时外精包内的精子已经释放完毕。智利小植绥螨的精子呈线型,精子平均长度3.9±0.3μm.
Abstract
zhi sui man ke bu shi man shi shi jie tian di chan ye hua sheng chan de chong yao lei qun ,zai xiao xing xi zhi xing you hai sheng wu ru xie man 、ji ma 、fen shi deng de sheng wu fang zhi zhong fa hui zhao shi fen chong yao de zuo yong 。jin nian lai ,chu le zuo wei tian di wai ,zhi sui man ke bu shi man de yi xie sheng wu xue xi xing deng ye shou dao guan zhu 。dan shi you yu zhi sui man zi shen de te zheng xian zhi le hen duo shi yan de kai zhan 。mu qian guan yu zhi sui man nei bu de sheng shi jie gou yi ji jiao pei guo cheng zhong jing zi zhuai yi de jie gou dou hai bu qing chu 。ben yan jiu yi guo ji shang ying yong zui an 、sheng wu xue yan jiu xiang dui jiao duo de pin chong zhi li xiao zhi sui man wei yan jiu dui xiang ,ying yong tou she dian jing 、sao miao dian jing he xi bao ran se ji shu ,yan jiu le zhi li xiao zhi sui man sheng shi yu jing zi zhuai yi jie gou ,yi ji jiao pei guo cheng zhong jing zi you xiong man dao ci man de zhuai yi guo cheng ;ming que le xiong man zai jiao pei guo cheng zhong wai jing bao de chan sheng guo cheng ji ji nei bu de jing zi xing tai he jing zi shu liang de bian hua ,shi yan jie guo wei jin yi bu le jie ji sheng shi yu xing bi diao kong ,yan jiu sheng shi ji li di gong le ke neng fang fa he yi ju 。yan jiu biao ming ,zhi li xiao zhi sui man xiong man de nei bu sheng shi jie gou you she jing guan 、zhu jing nang 、shu jing guan he jing chao si bu fen zu cheng 。jiao pei shi xiong man de dao jing zhi cong ao zhi ding duan shen chu ,ji zhong yi ge dao jing zhi xiang xia wan qu jie jin 90du ;dao jing zhi ji bu yu ao zhi shang de dong zhi xiang lian ,zai liang zhe lian jie chu cun zai guan jie shi dao jing zhi ke yi 180°xuan zhuai ,bing zai ci chu xing cheng yi ge lian suo jie gou ;dao jing zhi nei bu you yi zhong kong de qiang ,mo duan yi kai kou de fang shi jie shu ;dao jing zhi ji bu fu zhao yi fu shu jie gou chang du yao shi dao jing zhi de 2/3。zhi li xiao zhi sui man ci man de dao jing kong wei yu zu Ⅲhe zu Ⅳzhi jian kao jin fu ban chu ,ji zhi jing yao 7μm;jiao pei shi liang ge dao jing zhi ji zhong yi ge tong guo dao jing kong jin ru ci man ti nei de nang zhuang jie gou li ;ci man de shou jing nang you geng ,yu yi tiao xi guan dao xiang tong 。zhi li xiao zhi sui man de jing zi jin ru wai jing bao hou ,wai jing bao zai dao jing zhi de xie zhu xia yu ao zhi ji bu de xiao kong xiang lian ,sui hou yu wai jing bao xiang lian jie de ao zhi shang de dao jing zhi jin ru ci man de dao jing kong nei bu 。you ci jing zi wan cheng le cong xiong man dao ci man de zhuai yi 。zhi li xiao zhi sui man de wai jing bao cheng li xing ,wai jing bao zi jiao pei kai shi de 3minnei you xiong man de sheng shi kong chan chu ,chan chu hou yan zhao xiong man de e ji gou dao da ao zhi ji bu ,yu yi ge ao zhi ji bu shang de xiao kong xiang lian 。jing ye tong guo zhe ge xiao kong cong dao jing zhi nei bu de kong qiang dao da dao jing zhi duan bu de xiao kong ,jin ru ci man de dao jing kong 。zai jiao pei kai shi de qian 5minmei you zai wai jing bao nei guan cha dao jing zi ,zai jie xia lai de 10minnei wai jing bao nei de jing zi shu da dao zui da zhi (52),sui hou wai jing bao nei de jing zi shu kai shi jian shao ,jiao pei zhi 75minshi wai jing bao nei de jing zi yi jing shi fang wan bi 。zhi li xiao zhi sui man de jing zi cheng xian xing ,jing zi ping jun chang du 3.9±0.3μm.
论文参考文献
论文详细介绍
论文作者分别是来自中国农业科学院的姜晓环，发表于刊物中国农业科学院2019-07-05论文，是一篇关于智利小植绥螨论文,生殖结构论文,外精包论文,精子论文,中国农业科学院2019-07-05论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自中国农业科学院2019-07-05论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：智利小植绥螨论文; 生殖结构论文; 外精包论文; 精子论文; 中国农业科学院2019-07-05论文;