Transovum Transmission of Trypanosomatid Cysts in the Milkweed Bug, Oncopeltus fasciatus

被引：11
|
作者：
Dias, Felipe de Almeida [1 ]
da Costa Vasconcellos, Luiz Ricardo [2 ]
Romeiro, Alexandre [3 ]
Attias, Marcia [3 ]
Souto-Padron, Thais Cristina [2 ]
Lopes, Angela Hampshire [2 ]
机构：
[1] Univ Fed Rio de Janeiro, Inst Bioquim Med Leopoldo de Meis, Programa Biol Mol & Biotecnol, Rio De Janeiro, RJ, Brazil
[2] Univ Fed Rio de Janeiro, Inst Microbiol Paulo de Goes, Rio De Janeiro, RJ, Brazil
[3] Univ Fed Rio de Janeiro, Inst Biofis Carlos Chagas Filho, Rio De Janeiro, RJ, Brazil
来源：
PLOS ONE | 2014年 / 9卷 / 09期
关键词：
NUCLEAR-POLYHEDROSIS-VIRUS; HORIZONTAL GENE-TRANSFER; LEPTOMONAS-WALLACEI; BLASTOCRITHIDIA-TRIATOMAE; INSECT TRYPANOSOMATIDS; VERTICAL TRANSMISSION; POPULATION-DYNAMICS; OVUM TRANSMISSION; LYMANTRIA-DISPAR; INTESTINAL-TRACT;
D O I：
10.1371/journal.pone.0108746
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Leptomonas wallacei is a trypanosomatid that develops promastigotes and cystic forms in the gut of the hemipteran insect Oncopeltus fasciatus. Insect trypanosomatids are thought to be solely transmitted from one host to another through the ingestion of parasite- contaminated feces. However, here we show that L. wallacei cysts present on the eggshells of eggs laid by O. fasciatus can also act as infective forms that are transmitted to the insect offspring. Newly hatched O. faciatus nymphs are parasite-free, but some of them become contaminated with L. wallacei after feeding on eggshell remnants. The present study is the first report of transovum transmission of a trypanosomatid, a process that may have a relevant role in parasite's within- host population dynamics.
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页数：8
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