Differentiation of two locally sympatric Protopolystoma (Monogenea: Polystomatidae) species by temperature-dependent larval development and survival

被引：15
|
作者：
Jackson, JA
Tinsley, RC [1 ]
Du Preez, LH
机构：
[1] Univ Bristol, Sch Biol Sci, Bristol BS8 1UG, Avon, England
[2] Potchefstroom Univ Christian Higher Educ, Sch Environm Sci & Dev, ZA-2520 Potchefstroom, South Africa
来源：
INTERNATIONAL JOURNAL FOR PARASITOLOGY | 2001年 / 31卷 / 08期
基金：
英国生物技术与生命科学研究理事会; 新加坡国家研究基金会;
关键词：
Protopolystoma; monogenea; larval development; hatching; temperature; Xenopus;
D O I：
10.1016/S0020-7519(01)00185-0
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 developmental response of egg stages to different environmental temperature regimes was studied in Protopolystoma xenopodis and Protopolystoma orientalis (Munogenea: Polystomatidae) isolates from southern Africa. Eggs failed to develop at 10 degrees, whilst at 15 degreesC only P. xenopodis completed larval development, hatching 49-88 days post-collection. Respective hatching windows were 26-34 (P. xenopodis) and 37-49 (P. orientalis) days at 20 degreesC. and 18-26 and 27-37 days at 25 degreesC. Continuous maintenance at 30 degreesC was lethal for eggs of both species. There were no consistent interspecific differences in the response of egg stages to low and high temperature shocks during early embryonic development. (C) 2001 Australian Society for Parasitology Inc. Published by Elsevier Science Ltd. All rights reserved.
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页码：815 / 821
页数：7
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