Micro-organisms in the midgut of tsetse fly larvae
Related Experiment Video
Updated: Sep 12, 2026

08:30
Visualization of Microbiota in Tick Guts by Whole-mount In Situ Hybridization
Published on: June 1, 2018
Abstract:
Two types of micro-organisms were found in the midgut of Glossina morsitans larvae, a large Gram-negative bacterial rod and a small Gram-negative rickettsia-like micro-organism, although the occurrence of the rickettsial type is restricted. The location of these micro-organisms in a small area of the proventriculus of all three larval instars is discussed. The large micro-organisms resemble milk-gland bacteria, and further evidence is presented in support of a milk transmission hypothesis for these micro-organisms.
Related Concept Videos
Diversity of Protists I
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
Microbiota of the Large Intestine
The large intestine hosts the most densely populated microbial ecosystem in the human body. This complex community primarily consists of anaerobic bacteria, with Bacillota (formerly Firmicutes) and Bacteroidota (formerly Bacteroidetes) as the predominant groups. The distribution of these microbes varies along different sections of the large intestine, influenced by local environmental factors such as oxygen availability and nutrient composition.The cecum, located at the beginning of the large...
American Trypanosomiasis
Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...

