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Registered: 04/27/01
Posts: 242
Last seen: 14 years, 8 months
Need Help w/ Mexicana on Agar
    #389266 - 09/09/01 09:21 AM (21 years, 8 months ago)

I recently transferred a piece of Mexicana colonized agar onto a petri of MEA. I incubated at room temp (74f/23c) for the first 3-4 days. It seemed to do ok. FOr some reasson i decided to incubate at 84 F (29 c) for another 3-4 days, and when I took them out to inspect, it appears that the somewhat linear mexicana mycelium died off and some extremely cottony and weak looking mycelium took over. The same thing also happened with ps. tampanesis. ANy ideas? What temp should I incubate these at?

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Re: Need Help w/ Mexicana on Agar [Re: Richard_D_James]
    #389339 - 09/09/01 12:00 PM (21 years, 8 months ago)

Both species can have morphing mycelium, certainly they can change appearance when there are temperature fluctuations.
Lower your temps again!!! Or maintain a constant temperature.
Transfer the healthiest looking sections!! Both of these mycelium also express a wide variety of color as they age.

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