Digenea(肝豆状镰刀菌(Fasciola hepatica)和Paramphistomum daubneyi)中的蛔虫聚集:环境决定论还是物种决定论?

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-04-12 DOI:10.1017/s0022149x00701477
M. Abrous, C. Vareille-Morel, D. Rondelaud, G. Dreyfuss, J. Cabaret
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引用次数: 0

摘要

在实验条件下研究了肝吸虫和达布尼副吸虫的蛔虫聚集,以确定这些聚集体的形成是受环境因素的影响,还是吸虫物种的特性。研究人员将受感染的蜗牛放在培养皿(直径 14 厘米)底部 3 天,对这一过程进行了研究。环境因素(如光照强度和持续时间、水质和水量)对肝吸虫蜕膜聚集体的形成没有明显影响。肝包虫的蛔虫在培养皿壁上的数量较多,63.9%的蛔虫形成聚集体。与此相反,P. daubneyi 的大多数蛔虫都在培养皿底部,78.3%的蛔虫是孤立的或以每两个蛔虫为一组。F. hepatica 和 P. daubneyi 的每个集合体的平均carceriae数量分别为 6.7 至 12.2 个和 2.7 至 4.5 个。不过,这些平均数量与恙虫附着的部位无关。F. hepatica 的一个特征是carcariae 有形成元carcarial 聚集的趋势,这也是由物种决定的。
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Metacercarial aggregation in Digenea (Fasciola hepatica and Paramphistomum daubneyi): environmental or species determinism?
Metacercarial aggregation of Fasciola hepatica and Paramphistomum daubneyi was studied under experimental conditions to determine if the formation of these aggregates was influenced by environmental factors, or it was a characteristic of trematode species. This process was studied using the confinement of infected snails on the bottom of Petri dishes (diameter, 14 cm) for 3 days. The formation of metacercarial aggregates of F. hepatica was not significantly modified by environmental factors such as intensity and duration of lighting, quality and volume of water. Metacercariae of F. hepatica were more numerous on the Petri dish walls and 63.9% of them constituted aggregates. In contrast, most metacercariae of P. daubneyi were found on the Petri dish bottoms and 78.3% of them were isolated or in groups of two metacercariae each. The mean number of metacercariae per aggregate ranged from 6.7 to 12.2 in the case of F. hepatica, and from 2.7 to 4.5 in the case of P. daubneyi. However, these mean numbers were independent of the site of cercarial attachment. The tendency of cercariae to form metacercarial aggregations was a characteristic of F. hepatica and was species determined.
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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