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

. 2019 May 6;9:6945. doi: 10.1038/s41598-019-43192-9

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

© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Morphological details within the developing pedipalp and bulb primordium. (a) Early subadult. dice-µCT scan. Distal is to the left in all panels except panel e (proximal up). The hypodermis is epithelial near the bulb primordium, but mesenchymal along the cuticle. (b) Mid subadult. dice-µCT scan. Coagulated material contains inclusions (arrowhead) that likely represent histoblast groups. (c–e) Details of the bulb primordium at mid subadult stage, CLSM scans. (c) Detail of the base of the bulb primordium, showing the epithelial lining below the coagulated material. A part of the blind sperm duct is visible in cross section. (d) Filaments are present between the body of the coagulated material and the mesenchymal hypodermis below the cuticle. The blind sperm duct is seen in sagittal section and a portion of the epidermal connection is visible (that leads through to the tibia, not included in this focal plane). (e) 3D reconstruction of the blind sperm duct within the bulb primordium (coloured in orange). The other cavity that is visible is a portion of the epidermal connection to the tibia. Scale bars: 100 µm in a, b, d; 50 µm in c; 75 µm in e. Abbreviations: bsd, blind sperm duct; bu-pr, bulb primordium; coa, coagulated material; ec, epidermal connection; fil, filaments; epi, epithelial hypodermis; mes, mesenchymal hypodermis.