Allometric growth of the proglottids and strobila of the tapeworm, Hymenolepis diminuta

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-12 DOI:10.1017/s0022149x0070099x

P.W. Pappas

引用次数: 0

Abstract

Hymenolepis diminuta adults were killed and fixed in fully extended positions, and the total lengths of the strobilae, numbers of proglottids, and distances of proglottids along the strobilae were determined. The relationship of proglottid number to distance along the strobila was exponential. Beginning at proglottid 100 (P100), the lengths and widths of proglottids at 100 proglottid intervals were determined, and the surfaces areas were calculated. The relationships of proglottid length and width to proglottid number were linear, but the relationship of proglottid number to surface area (SA) was exponential. The volumes of proglottids were calculated, and the relationship of volume (V) to proglottid number was exponential. The relationship of surface area to volume ratio (SAVR) to proglottid number was exponential; at the anterior end of the worm (P100), the SAVR was 14.6, while at the posterior end of the worm (P1300) the ratio was 4.2. A single exponential equation describing the relationships among proglottid number, SA, and V was derived.

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绦虫（Hymenolepis diminuta）前体和strobila的异速生长

杀灭Hymenolepis diminuta成虫并将其固定在完全伸展的位置，然后测定茎叶的总长度、原叶数量和原叶沿茎叶的距离。原基数量与沿茎秆的距离呈指数关系。从原基 100（P100）开始，每隔 100 个原基测定原基的长度和宽度，并计算表面积。原基长度和宽度与原基数量呈线性关系，但原基数量与表面积（SA）呈指数关系。计算了声门前体的体积，体积（V）与声门前体数量的关系是指数关系。表面积与体积比（SAVR）与声门前体数量的关系呈指数关系；在蠕虫前端（P100），SAVR 为 14.6，而在蠕虫后端（P1300），该比率为 4.2。得出了一个单一的指数方程来描述前叶数量、SA和V之间的关系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

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.