INFLUENCE OF LEISHMANIA INFECTION ON BLOOD-MEAL DIGESTION IN THE SANDFLIES PHLEBOTOMUS-PAPATASI AND PHLEBOTOMUS-LANGERONIA

被引:46
作者
DILLON, RJ [1 ]
LANE, RP [1 ]
机构
[1] NAT HIST MUSEUM,DEPT ENTOMOL,LONDON SW7 5BD,ENGLAND
来源
PARASITOLOGY RESEARCH | 1993年 / 79卷 / 06期
基金
英国惠康基金;
关键词
D O I
10.1007/BF00931590
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
The presence of amastigote-initiated infections of Leishmania major parasites caused a significant suppression in alkaline protease, trypsin and aminopeptidase activity during the first 30 h after ingestion of the infected bloodmeal in Phlebotomus papatasi, the natural vector of L. major. Protease levels were significantly higher in infected flies after 72 h than in the control group, where digestion had ceased. Evidence for the suppression of protease activity in infected P. langeroni, a sympatric but un-natural vector of L. major, was less clear; there was no difference in alkaline protease activity between control and infected groups in the first 24 h. However, protease, trypsin and aminopeptidase activities were elevated after 72 h in infected P. langeroni, indicating a delay in the time to the end of digestion and passage of the bloodmeal. The potential advantages for parasite development in suppressing protease activity and extending the period of bloodmeal digestion are discussed.
引用
收藏
页码:492 / 496
页数:5
相关论文
共 29 条
[1]  
ADLER S, 1938, HAREFUAH, V14, P1
[2]  
[Anonymous], [No title captured]
[3]   TRYPSIN AND CHYMOTRYPSIN-LIKE ENZYMES OF THE SANDFLY PHLEBOTOMUS-PAPATASI INFECTED WITH LEISHMANIA AND THEIR POSSIBLE ROLE IN VECTOR COMPETENCE [J].
BOROVSKY, D ;
SCHLEIN, Y .
MEDICAL AND VETERINARY ENTOMOLOGY, 1987, 1 (03) :235-242
[4]   PEPTIDE SUBSTRATE-SPECIFICITY OF THE MEMBRANE-BOUND METALLOPROTEASE OF LEISHMANIA [J].
BOUVIER, J ;
SCHNEIDER, P ;
ETGES, R ;
BORDIER, C .
BIOCHEMISTRY, 1990, 29 (43) :10113-10119
[5]   EXCRETION OF PROTEOLYTIC-ENZYMES BY AEDES-AEGYPTI AFTER A BLOOD MEAL [J].
BRIEGEL, H .
JOURNAL OF INSECT PHYSIOLOGY, 1975, 21 (10) :1681-1684
[6]  
DAVIES CR, 1990, PARASITOLOGY, V101, P377
[7]  
DILLON RJ, 1993, IN PRESS MED VET ENT
[8]  
El Sattar S., 1991, Parassitologia (Rome), V33, P199
[9]   AN ULTRASTRUCTURAL-STUDY ON THE EARLY DEVELOPMENT OF LEISHMANIA-CHAGASI (KINETOPLASTIDA, TRYPANOSOMATIDAE) IN ITS VECTOR LUTZOMYIA-LONGIPALPIS (DIPTERA, PSYCHODIDAE) [J].
ELNAIEM, DA ;
WARD, RD ;
YOUNG, PE .
ANNALES DE PARASITOLOGIE HUMAINE ET COMPAREE, 1992, 67 (01) :3-8
[10]   BLOODMEAL DIGESTION BY STRAINS OF ANOPHELES-STEPHENSI LISTON (DIPTERA, CULICIDAE) OF DIFFERING SUSCEPTIBILITY TO PLASMODIUM-FALCIPARUM [J].
FELDMANN, AM ;
BILLINGSLEY, PF ;
SAVELKOUL, E .
PARASITOLOGY, 1990, 101 :193-200