用石蜡和冰冻切片方法,进行 H·E 和 PAS 等染色,光镜下对黄鼬肛腺进行了组织形态观察。结果表明:黄鼬肛腺由分泌腺和贮腺囊两部分组成。分泌腺分为皮脂腺和臭腺二种独立的腺体。贮腺囊是被有复层扁平上皮的宽阔囊腔。在肛腺周围,...用石蜡和冰冻切片方法,进行 H·E 和 PAS 等染色,光镜下对黄鼬肛腺进行了组织形态观察。结果表明:黄鼬肛腺由分泌腺和贮腺囊两部分组成。分泌腺分为皮脂腺和臭腺二种独立的腺体。贮腺囊是被有复层扁平上皮的宽阔囊腔。在肛腺周围,腺体间及贮腺囊壁周围有发达的平滑肌和横纹肌。展开更多
Laboratory feeding experiments with the poplar aphid, Chaitophorus populeti （Panzer）, feeding on transgenic poplar （P. alba × P. glandulosa） varieties C13-5 and C013-5, were carried out to study the effect of...Laboratory feeding experiments with the poplar aphid, Chaitophorus populeti （Panzer）, feeding on transgenic poplar （P. alba × P. glandulosa） varieties C13-5 and C013-5, were carried out to study the effect of transgenic poplar on the ladybird Harmonia axyridis （Pallas）. The mortality and development time of the immature stages, the eclosion rate and body mass of H. axyridis were measured. The results indicated that C. populeti feeding on different varieties of transgenic plants had no statistically significant ef- fect on the mortality ofH. axyridis larvae. The development time of larval and pupal stages were not significantly different between the two transgenic poplars and a non-transgenic poplar. Furthermore, the body mass and eclosion rate did not show any difference between the H. axyridis feeding on aphids reared on transgenic plants and those from non-transgenic plants. It is suggested that transgenic plants have no deleterious effect on the predatory ladybird.展开更多
异色瓢虫 Leis axyridis(Pallas)是蚜虫、红蜘蛛及蚧虫等害虫的主要天敌之一,又是亚洲益虫宝库中色斑结构复杂变异显著的生物种.作者三十年来,对在华北、东北地区9个省市采集的1575万头成虫进行色斑结构分类.结果发现:此虫色斑结构由2...异色瓢虫 Leis axyridis(Pallas)是蚜虫、红蜘蛛及蚧虫等害虫的主要天敌之一,又是亚洲益虫宝库中色斑结构复杂变异显著的生物种.作者三十年来,对在华北、东北地区9个省市采集的1575万头成虫进行色斑结构分类.结果发现:此虫色斑结构由2个基本型,13个色型组,104个色型及185个变型组成.研究结果为生防提供形态学依据.现将作者发现的8个新种型简报如下.展开更多
基金supported by the National Premier Special Funds for Study and Industrialization of Transgenic Plants (J2002-B-004)the National Natural Science and Technology Support Plan of China "the technology researchdemonstration of forestry-paper integrate project" (Grant No. 2006BAD32B)
文摘Laboratory feeding experiments with the poplar aphid, Chaitophorus populeti （Panzer）, feeding on transgenic poplar （P. alba × P. glandulosa） varieties C13-5 and C013-5, were carried out to study the effect of transgenic poplar on the ladybird Harmonia axyridis （Pallas）. The mortality and development time of the immature stages, the eclosion rate and body mass of H. axyridis were measured. The results indicated that C. populeti feeding on different varieties of transgenic plants had no statistically significant ef- fect on the mortality ofH. axyridis larvae. The development time of larval and pupal stages were not significantly different between the two transgenic poplars and a non-transgenic poplar. Furthermore, the body mass and eclosion rate did not show any difference between the H. axyridis feeding on aphids reared on transgenic plants and those from non-transgenic plants. It is suggested that transgenic plants have no deleterious effect on the predatory ladybird.
文摘异色瓢虫 Leis axyridis(Pallas)是蚜虫、红蜘蛛及蚧虫等害虫的主要天敌之一,又是亚洲益虫宝库中色斑结构复杂变异显著的生物种.作者三十年来,对在华北、东北地区9个省市采集的1575万头成虫进行色斑结构分类.结果发现:此虫色斑结构由2个基本型,13个色型组,104个色型及185个变型组成.研究结果为生防提供形态学依据.现将作者发现的8个新种型简报如下.
