The influence of the aphid-specific pathogen Conidiobolus obscurus (Entomophthoromycota: Entomophthorales) on the mortality and fecundity of bamboo aphids
The influence of the aphid-specific pathogen Conidiobolus obscurus (Entomophthoromycota: Entomophthorales) on the mortality and fecundity of bamboo aphids
复制标题
蚜虫特有病原Conidiobolus obscurus (Entomophthoromycota: Entomophthorales)对竹蚜死亡率和繁殖力的影响
DOI：
10.1007/s10310-013-0431-0
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发表时间：
2014-08
影响因子：
1.5
通讯作者：
Wang, Jiang-Hong
中科院分区：
文献类型：
--
作者：
Zhou, Xiang;Wang, Da-Wei;Zhang, Xin;Wang, Jiang-Hong
通过测定暗色分生孢子虫对竹蚜的生物量和扫描电子显微镜，研究其对竹蚜繁殖力的影响，以评价其生防潜力。采用多浓度生物测定和繁殖力测定方法，对台湾竹叶蝉、高山竹叶蝉、竹小蜂和竹纵卷叶蜂进行了多浓度生物测定和繁殖力测定。暗纹夜蛾能有效侵染4种竹蚜，接种后前2天出现的身体最多。在分生孢子浓度较高时，最终致死率可达74-91%。根据拟合的时间-浓度-死亡率模型，估计的真菌分生孢子的半数致死浓度(LC_(50))在不同种类间存在显著差异，并随观察天数的增加而降低。在分生孢子雨后第5天，台湾木霉的最低LC_(50)为57分生孢子mm−_2。另外，寄主寄主繁殖力受真菌影响较大，寄主繁殖力受真菌影响最大的只有3.9~18.2%。综上所述，暗纹夜蛾具有抑制竹林蚜虫种群发展的能力，适合在竹林中进一步推广应用。
Bioassays and scanning electron microscopy of Conidiobolus obscurus for bamboo aphids as well as its effects on the fecundity of bamboo aphids were carried out to estimate bamboo aphid biocontrol potential. Multi-concentration bioassay and fecundity assessment were performed on aphid species of Takecallis taiwanus, Takecallis arundinariae, Melanaphis bambusae, and Metamacropodaphis bambusisucta. C. obscurus can effectively infect four species of bamboo aphids, and most cadavers appeared in the first 2 days after inoculation. The final mortalities reached 74–91 % at high concentrations of conidia among the tested species. Based on the fitted time–concentration–mortality models, the estimates of the median lethal concentration (LC50) of the fungal conidia differed significantly among different aphid species and decreased with observation days. The lowest LC50 was estimated to be 57 conidia mm−2 for T. taiwanus on day 5 after conidial shower. Moreover, the C. obscurus-infected aphids only produced 3.9–18.2 % progeny of the corresponding healthy aphids, which strongly presented fungal influence on host fecundity. In conclusion, C. obscurus has the ability of restraining the development of bamboo aphid populations, which is suitable for further application in aphid biocontrol in bamboo forests.
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影响因子：
3.4
作者：
Xiaoping Zhou;M. Feng
通讯作者：
Xiaoping Zhou;M. Feng
影响因子：
1.4
作者：
Xiaoping Zhou;K. Guo;S. Mao;Wei He;Yunfeng Zhu
通讯作者：
Xiaoping Zhou;K. Guo;S. Mao;Wei He;Yunfeng Zhu
DOI：
10.1590/s1517-838220120001000038
发表时间：
2012-01
期刊：
Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]
影响因子：
--
作者：
Zhou X
通讯作者：
Zhou X
影响因子：
5.1
作者：
Guo-zhong Zhang;M. Feng;Chun Chen;S. Ying
通讯作者：
Guo-zhong Zhang;M. Feng;Chun Chen;S. Ying
影响因子：
2.5
作者：
H. Roy;Eoin L. Brodie;D. Chandler;M. Goettel;J. Pell;E. Wajnberg;F. Vega
通讯作者：
H. Roy;Eoin L. Brodie;D. Chandler;M. Goettel;J. Pell;E. Wajnberg;F. Vega