Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 Apr 26;7:539. doi: 10.3389/fmicb.2016.00539

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2016 Kroer, Kjeldsen, Nyengaard, Schramm and Funch.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

(A) Composite light microscopy image of half of a gut cross-section. Arrows point to the “pocket structures” where the symbionts were observed. Lu = gut lumen. Scale bar, 100 μm. (B) TEM micrograph of partially-visible elongated bacterial cells among host microvilli within pockets formed by the gut epithelium. Arrows point to various bacteria. Scale bar, 2 μm. (C) TEM micrograph close-up of three bacteria, one almost fully visible. Arrows point to the bacteria. Scale bar, 2 μm. (D) Extended focus multi-channel epifluorescence micrograph of a gut section hybridized with the symbiont-specific probe PricSym652-CY3 and stained with DAPI. Cand. T. priapulorum symbionts appear red, host nuclei cyan, and autofluorescent host tissue yellow. Scale bar, 5 μm.