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

. 2023 Jul 4;13:10781. doi: 10.1038/s41598-023-36818-6

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

© The Author(s) 2023

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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

CC-124 (agg1^-) but not CC-4533 (AGG1) exhibits clear collective migration during ammonium chemotaxis. Chlamydomonas with a low cell density (10⁵ cells/ml) were exposed to chemical gradients from three separate directions by placing source agarose blocks in different locations within the Petri dish. The top row has a chemical gradient from 0 mM NH₄Cl at the bottom of the Petri dish to 21 mM NH₄Cl at the top of the Petri dish in the photos. The second row has a chemical gradient from 0 mM NH₄Cl at the bottom of the Petri dish to 21 mM NH₄Cl at the left of the Petri dish in the photos. The third row has a chemical gradient from 0 mM NH₄Cl at the bottom of the Petri dish to 21 mM NH₄Cl at the right of the Petri dish in the photos. Photos were taken at the 0, 3, 6, 12, and 24 h time points for either CC-124 (A) and CC-4533 (B). The red arrows in (A) indicate collected CC-124 cells, whereas the highlighted red areas in (B) indicate collected CC-4533 cells.