Novel chlamydiae in whiteflies and scale insects:: endosymbionts 'Candidatus Fritschea bemisiae' strain Falk and 'Candidatus Fritschea eriococci' strain Elm
Novel chlamydiae in whiteflies and scale insects:: endosymbionts 'Candidatus Fritschea bemisiae' strain Falk and 'Candidatus Fritschea eriococci' strain Elm
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DOI：
10.1099/ijs.0.63454-0
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发表时间：
2005-07-01
影响因子：
2.8
通讯作者：
Baumann, P
中科院分区：
文献类型：
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作者：
Everett, KDE;Thao, ML;Baumann, P
一种名为“Fritschea”的细菌是植物性粉虱烟粉虱和介壳虫 Eriococcus spius 的内共生体。在烟粉虱的肠道中，这些细菌生活在细菌细胞内，这些细菌直接从亲本传播到卵母细胞。粉虱对许多农作物造成严重的经济损失；烟粉虱的繁殖力和寄主范围小于银粉虱，可能是由于这种内共生体的存在。烟粉虱内共生体已通过电子显微镜和 DNA 分析进行了表征，但尚未在昆虫体外分离或繁殖。本研究将 11 个内共生基因的序列与副衣原体科、衣原体科和 Simkaniaceae 衣原体科的基因组数据以及来自 330 种衣原体的 16S rRNA 基因特征序列进行了比较。我们的结论是，建议“Candidatus Fritschea bemisiae”菌株 Falk 和“Candidatus Fritschea eriococci”菌株 Elm 作为衣原体目 Simkaniaceae 科的成员是合适的。
Bacteria called 'Fritschea' are endosymbionts of the plant-feeding whitefly Bemisia tabaci and scale insect Eriococcus spurius. In the gut of B. tabaci, these bacteria live within bacteriocyte cells that are transmitted directly from the parent to oocytes. Whiteflies cause serious economic damage to many agricultural crops; B. tabaci fecundity and host range are less than those of Bemisia argentifolii, possibly due to the presence of this endosymbiont. The B. tabaci endosymbiont has been characterized using electron microscopy and DNA analysis but has not been isolated or propagated outside of insects. The present study compared sequences for 11 endosymbiont genes to genomic data for chlamydial families Parachlamydiaceae, Chlamydiaceae and Simkaniaceae and to 16S rRNA gene signature sequences from 330 chlamydiae. We concluded that it was appropriate to propose 'Candidatus Fritschea bemisiae' strain Falk and 'Candidatus Fritschea eriococci' strain Elm as members of the family Simkaniaceae in the Chlamydiales.