Metacyclic promastigotes ofLeishmaniain the salivary glands of experimentally infected phlebotomine sandflies
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چکیده
منابع مشابه
Transmission of Leishmania metacyclic promastigotes by phlebotomine sand flies
A thorough understanding of the transmission mechanism of any infectious agent is crucial to implementing an effective intervention strategy. Here, our current understanding of the mechanisms that Leishmania parasites use to ensure their transmission from sand fly vectors by bite is reviewed. The most important mechanism is the creation of a "blocked fly" resulting from the secretion of promast...
متن کاملChinese Phlebotomine Sandflies
Four species of Adlerius phlebotomine sandflies have been recorded in China, namely: P. chinensis Newstead, 1 9 1 6 (Pc); P. fengi Leng & Zhang, 1 9 9 4 ; P. longiductus Parrot, 1 9 2 8 and P. sichuanensis Leng & Yin, 1 9 8 3 (Ps), Adlerius phlebotomines are the main vectors of visceral leishmaniasis (VL) in China; three of them are acknowledged as VL vectors and P. fengi is considered a potent...
متن کاملAssessment of PCR in the detection of Leishmania spp in experimentally infected individual phlebotomine sandflies (Diptera: Psychodidae: Phlebotominae).
DNA amplification by the polymerase chain reaction (PCR) was applied in the investigation of the presence of Leishmania (Kinetoplastida: Trypanosomatidae) parasites in single phlebotomine sandflies. Three phlebotomine/parasite pairs were used: Lutzomyia longipalpis/Leishmania chagasi, Lutzomyia migonei/Leishmania amazonensis and Lutzomyia migonei/Leishmania braziliensis, all of them incriminate...
متن کاملThe role of promastigote secretory gel in the origin and transmission of the infective stage of Leishmania mexicana by the sandfly Lutzomyia longipalpis.
Transmission of leishmaniasis is effected by a specific developmental stage, the metacyclic promastigote. The precursors of metacyclic promastigotes were a distinct subpopulation of parasites, identified for the first time as a new stage in the life-cycle and named leptomonad promastigotes. Microdissection of infected sandflies into 4 midgut regions and foregut allowed precursor-product relatio...
متن کاملEcology of phlebotomine sandflies (Diptera, Psychodidae) in Brazilian Atlantic Forest.
The phlebotomine sandfly fauna of a primary forest reserve at Morretes (eastern Paraná State) was studied, using CDC-like light traps, one night per month, at canopy and ground level, between April 1995 and March 1996. A total of 3,106 insects were collected, identified as belonging to nine species. Lutzomyia ayrozai and Lu.geniculata were predominant, seven other species also being present. Mo...
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ژورنال
عنوان ژورنال: Parasite
سال: 1996
ISSN: 1252-607X,1776-1042
DOI: 10.1051/parasite/1996031055