SEA-PHAGES Logo

The official website of the HHMI Science Education Alliance-Phage Hunters Advancing Genomics and Evolutionary Science program.

Welcome to the forums at seaphages.org. Please feel free to ask any questions related to the SEA-PHAGES program. Any logged-in user may post new topics and reply to existing topics. If you'd like to see a new forum created, please contact us using our form or email us at info@seaphages.org.

All posts created by RyanWheeler

| posted 19 Aug, 2024 16:45
Hi,
That's the exact problem I had. It came from a contaminant in the M. foliorum stocks. I streaked a new plate and selected a single colony, which I used to streak a new plate and select another single colony and grew up that colony for fresh bacteria stocks. This solved the problem for me.
-Ryan
Posted in: Phage Discovery/IsolationPlaques appear on spot test, don't appear in titer
| posted 16 Feb, 2024 14:01
Hi,
I pulled my high titer lysates from the -80 and did a spot test and had excellent results. The spot was completely clear of the host (M. foliorum) and I took this to mean that the phage had survived the -80 storage. However, when I tried to do a titer I had no plaques on any of my plates. I tried this twice, first by picking the spot around the margins, and second by using the lysate directly. Neither produced plaques, and I used the same plates, top agar, phage buffer, and M. foliorum culture that I used in the successful spot test. I'm not sure what I'm doing wrong in the titer. Any help would be appreciated.
Thanks,
Ryan
Posted in: Phage Discovery/IsolationPlaques appear on spot test, don't appear in titer
| posted 05 Dec, 2023 18:37
Hello everyone,
I am looking purchase materials for the DNA extraction and I am a little stuck on the item "nuclease mix". Does this refer to a mix of DNase and RNase or some specific product? Which brand of either works the best in your experience?
Thanks,
Ryan
Posted in: Phage Discovery/IsolationBest nuclease mix?