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Functional Diversity of Morphologically Similar Digestive Organs in Muroidea Species
Biology Bulletin ( IF 0.5 ) Pub Date : 2021-06-12 , DOI: 10.1134/s1062359021020084
E. I. Naumova , T. Yu. Chistova , A. A. Varshavskii , G. K. Zharova

Abstract

We examine possible ways of functional adjustment of morphologically similar alimentary tracts in rodents with different dietary specializations. We study the structure of stomach and gut epithelial surface as well as the features of its colonization with microorganisms in five gerbil species: Psammomys obesus, Meriones crassus, Gerbillus henleyi, G. andersoni, and G. dasyurus. Data on the morphological diversity of mucosa-associated microbiota have been obtained and confirmed by the results of previous microbiology studies. Species differences in chymus acidity associated with dietary specialization have been determined. Variations in the activity of the endoglucanase microbial enzyme, which is crucial for rodents fed on cellulose-containing food, have also been detected. The importance of microbiota for functional adaptations to various food types in rodents with morphologically similar digestive tracts has been evaluated.



中文翻译:

Muroidea 物种中形态相似消化器官的功能多样性

摘要

我们研究了在具有不同饮食专业化的啮齿动物中对形态相似的消化道进行功能调整的可能方法。我们研究了胃和肠道上皮表面的结构以及其在五种沙鼠中的微生物定植特征:Psammomys obesus、Meriones crassus、Gerbillus henleyi、G. andersoniG. dasyurus. 先前微生物学研究的结果已获得并证实了有关粘膜相关微生物群形态多样性的数据。与饮食专业化相关的食糜酸度的物种差异已被确定。还检测到内切葡聚糖酶微生物酶的活性变化,这对于以含纤维素食物为食的啮齿动物至关重要。已经评估了微生物群在具有形态相似消化道的啮齿动物中对各种食物类型进行功能适应的重要性。

更新日期:2021-06-13
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