期刊
FOLIA PARASITOLOGICA
卷 49, 期 1, 页码 73-77出版社
FOLIA PARASITOLOGICA
DOI: 10.14411/fp.2002.014
关键词
sandfly; bacteria; Ochrobactrum; Leishmania; lectin; transtadial transmission
类别
Bacteria isolated from the gut of different developmental stages of Phlebotomus duboseqi Neveu-Lemaire, 1906 belonged almost all to aerobic or facultatively anaerobic gram-negative rods. In females, the highest bacterial counts were observed two days after bloodfeeding; seven days after bloodfeeding the bacterial counts returned to pre-feeding levels. Most isolates were identified phenotypically as Ochrobactrum sp. The distinctiveness and homogeneity of the phenotypic and genotypic characteristics of Ochrobactrum isolates indicated that they belonged to a single strain (designated AK). This strain was acquired by larvae from food and passaged transtadially: it was isolated from the guts of fourth-instar larvae shortly before pupation, from pupae as well from newly emerged females, Most other bacteria found in females were acquired from the sugar solution fed to adults. To determine if the midgut lectin activity may serve as antibacterial agent females were membrane-fed on blood with addition of inhibitory carbohydrates. No significant differences in bacterial infections were found between experimental and we suppose that the lectin activity has no effect on gram-negative bacteria present in sandfly gut.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据