SCHISTOSOMA-MANSONI - A CHEMOATTRACTIVE FACTOR RELEASED BY MALES AND ITS RECEPTOR IN FEMALES

被引:19
作者
HASEEB, MA [1 ]
EVELAND, LK [1 ]
机构
[1] CALIF STATE UNIV LONG BEACH, DEPT MICROBIOL, LONG BEACH, CA 90840 USA
来源
EXPERIENTIA | 1991年 / 47卷 / 09期
关键词
SCHISTOSOMA-MANSONI; CHEMOATTRACTION; CHEMOATTRACTANT; CHEMORECEPTION; CHEMORECEPTORS; LIPIDS; PHEROMONES; RECEPTORS; WORMS;
D O I
10.1007/BF01929895
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Chemoattraction between developing (23- to 28-day-old) and adult (10- to 12-week-old) Schistosoma mansoni males and females has been described previously. We report here on in vitro attraction of mature worms to released products of worms of the opposite sex. In the absence of a stimulus worms migrated randomly and did not show any preference in their orientation. Males were not significantly attracted to released products of females. Females exhibited greatest attraction to released products of males, and some attraction to the lipid fraction of released products of males. The aqueous fraction of male-released products slightly repelled females. Prior exposure to released products of males rendered females unresponsive to subsequent exposure, suggesting receptor saturation. These findings have important potential implications for the control of schistosomiasis by intercepting attraction and mating between males and females.
引用
收藏
页码:970 / 974
页数:5
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