Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.14411/fp.2007.039 |
Glycolytic and chitinolytic activities of Phlebotomus papatasi (Diptera : Psychodidae) from diverse ecological habitats | |
Jacobson, Raymond L.; Studentsky, Liora; Schlein, Yosef | |
通讯作者 | Jacobson, Raymond L. |
来源期刊 | FOLIA PARASITOLOGICA |
ISSN | 0015-5683 |
EISSN | 1803-6465 |
出版年 | 2007 |
卷号 | 54期号:4页码:301-309 |
英文摘要 | The sand fly Phlebotomus papatasi Scopoli, 1786, the vector of Leishmania major Yakimoff et Schokhor, 1914, is found in desert areas where sugars are scarce but also in habitats that abound in sugar sources. The sand flies require sugar meals from plant sources for their energy requirements and to hydrolyze these complex sugars, they need a repertoire of glycosidases. We presumed that there are differences in the levels of glycosidase activities in flies from such habitats and also assumed that they may be instrumental in modulating the flies’ susceptibility to L. major infections. Phlebotomus papatasi. originating from diverse ecological habitats ranging from an oasis to desert sites were colonized. They were analyzed for weight changes and glycosidase activities before and after feeding on I M sucrose solution. Oasis flies were smaller than desert flies but took larger sugar meals. Homogenates of these flies hydrolyzed 16 synthetic and 2 natural glycoside substrates to varying degrees. The arid-region flies tended to produce more glycosidase activity than those originating in sugar-rich environments, especially sucrase, alpha- and beta-glucosidase, alpha-fucosidase, alpha-mannosidase, and alpha- and beta-N-acetylgalactosaminidase. However, chitinolytic enzyme activities and particularly the beta-N-acetylhexosaminidase activity of oasis flies were higher than other flies tested. In comparing the desert flies, there were also significant differences in glycolytic enzyme activities between the spring-line (flowering season) of flies and the autumn-line (end of dry season) flies. A range of saccharide inhibitors was tested to demonstrate the specificity of the enzymes. |
英文关键词 | Phlebotomus papatasi glycosidases chitinases oasis arid |
类型 | Article |
语种 | 英语 |
国家 | Israel |
收录类别 | SCI-E |
WOS记录号 | WOS:000251962000007 |
WOS关键词 | PERFORMANCE LIQUID-CHROMATOGRAPHY ; LUTZOMYIA-LONGIPALPIS ; LEISHMANIA-MAJOR ; SAND FLY ; SANDFLIES DIPTERA ; ALPHA-GLUCOSIDASE ; HUNGER TOLERANCE ; HONEYDEW SUGARS ; JORDAN VALLEY ; PLANT |
WOS类目 | Parasitology |
WOS研究方向 | Parasitology |
来源机构 | Hebrew University of Jerusalem |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/154221 |
作者单位 | Hebrew Univ Jerusalem, Hadassah Med Sch, Dept Parasitol, IL-91120 Jerusalem, Israel |
推荐引用方式 GB/T 7714 | Jacobson, Raymond L.,Studentsky, Liora,Schlein, Yosef. Glycolytic and chitinolytic activities of Phlebotomus papatasi (Diptera : Psychodidae) from diverse ecological habitats[J]. Hebrew University of Jerusalem,2007,54(4):301-309. |
APA | Jacobson, Raymond L.,Studentsky, Liora,&Schlein, Yosef.(2007).Glycolytic and chitinolytic activities of Phlebotomus papatasi (Diptera : Psychodidae) from diverse ecological habitats.FOLIA PARASITOLOGICA,54(4),301-309. |
MLA | Jacobson, Raymond L.,et al."Glycolytic and chitinolytic activities of Phlebotomus papatasi (Diptera : Psychodidae) from diverse ecological habitats".FOLIA PARASITOLOGICA 54.4(2007):301-309. |
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