Species Diversity and Flagellate Infections in the Sand Fly Fauna near Porto Grande, State of Amapá, Brazil (Diptera: Psychodidae. Kinetoplastida: Trypanosomatidae)
Species Diversity and Flagellate Infections in the Sand Fly Fauna near Porto Grande, State of Amapá, Brazil (Diptera: Psychodidae. Kinetoplastida: Trypanosomatidae)
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DOI：
10.1590/s0074-02762002000100008
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发表时间：
2002-01-01
期刊：
影响因子：
--
通讯作者：
Barrett, Toby V
中科院分区：
文献类型：
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作者：
Freitas, Rui A;Naiff, Roberto D;Barrett, Toby V
在阿马帕中部采集的20,008只沙蝇中，鉴定出46种褐蝇属和1种Brumptomyia属。灯光诱捕器诱捕的标本中，6 6%为平腹乳杆菌、平腹乳杆菌、伞形乳杆菌和泛氏乳杆菌，其中以伞形乳杆菌最多见。在一片加勒比海松林中采集到包括斑潜蝇在内的7种斑潜蝇。在解剖的511只雌性沙蝇中，有60只鞭毛呈阳性。在分离出利什曼原虫的沙蝇中，在唾液腺中观察到了前鞭毛体，21只雌性沙蝇中有13只的前肠被认为在肠道的其余部分有非常严重的感染，这强化了唾液腺入侵可能是利什曼原虫自然正常生命周期的一部分的想法。在脐带菌、惠氏乳杆菌和金黄色葡萄球菌标本中检出唾液腺感染。从L.umbratilis和L.White mam分离的寄生虫以及从含有血粉残留物的树枝莲标本中分离的寄生虫与Le.仓鼠的形态和行为。
Forty-six species of Lutzomyia and one species of Brumptomyia were identified among 20,008 sandflies collected in central Amapa. L. squamiventris maripaensis, L. infraspinosa, L. umbratilis and L. ubiquitalis accounted for 66% of the specimens caught in light traps, and L. umbratilis was the commonest of the 16 species found on tree bases. Seven species of Lutzomyia including L. umbratilis were collected in a plantation of Caribbean pine. Sixty out of 511 female sandflies dissected were positive for flagellates. Among the sandflies from which Leishmania was isolated, promastigotes were observed in the salivary glands and foregut of 13 out of 21 females scored as having very heavy infections in the remainder of the gut, reinforcing the idea that salivary gland invasion may be part of the normal life cycle of Leishmania in nature. Salivary gland infections were detected in specimens of L. umbratilis, L. whimani and L. spathotrichia. Parasites isolated from L. umbratilis, L. whitmam and also from one specimen of L. dendrophyla containing the remains of a bloodmeal, were compatible with Le. guyanensis by morphology and behaviour in hamsters.