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OfflineHypercube
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Role of deliquescence?
    #5526477 - 04/17/06 07:30 PM (17 years, 9 months ago)

I was thinking about this the other day while daydreaming of shaggy-mane.

What possible evolutionary benefit does deliquescence serve? It seems that spores would disperse more readily when not stuck in goo.

The only thing I can think of, is that the goop left behind serves as a nutritional base of sorts to start mycelial growth. Though this would be of very limited benefit for a species wanting to spread it's seed.

Is this another as-of-yet unexplained phenomenon?


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Offlineeris
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Re: Role of deliquescence? [Re: Hypercube]
    #5526932 - 04/17/06 08:51 PM (17 years, 9 months ago)

Interesting thought - I can't really think of a reasonable answer.
I think coprinus species are doing something right though, as far as reproduction and distribution goes - they are so aggressive and widespread. I would bet they are among some of the most commonly found mushrooms. They occur pretty much all over the world it seems. I'd have to say they are a very successful life form. Especially compared to some of the other mushrooms.


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Invisibleshroomydan
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Re: Role of deliquescence? [Re: eris]
    #5527127 - 04/17/06 09:39 PM (17 years, 9 months ago)

Spores are suspended in the black goo which attracts insects (fungus gnats)and sticks to their legs. Wherever the gnat lands, he leaves spore impregnated footprints. Spores carried by fungus gnats are more likely to land on suitable substrate than spores carried by the wind, because fungus gnats usually hang out in fungus habitat.


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OfflineHypercube
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Re: Role of deliquescence? [Re: shroomydan]
    #5527464 - 04/17/06 10:59 PM (17 years, 9 months ago)

It's all clear to me now! Thanks dan.


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OfflineFreeSporePrints
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Re: Role of deliquescence? [Re: Hypercube]
    #5527973 - 04/18/06 12:58 AM (17 years, 9 months ago)

Simply great :smile:


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Invisibleshroomydan
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Re: Role of deliquescence? [Re: Hypercube]
    #5528725 - 04/18/06 09:40 AM (17 years, 9 months ago)

Falcon just sent me this link. The bottom of the page deals with Inky caps and spore dispersal. His theory is different than the one I presented, but I think both may be correct.
http://www.anbg.gov.au/fungi/spore-discharge-mushrooms.html


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Offlineeris
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Re: Role of deliquescence? [Re: shroomydan]
    #5528741 - 04/18/06 09:46 AM (17 years, 9 months ago)

Wow that's a nice link. I have to book mark that one.

I agree with the transfer to insects also, it definitely happens. Now that I think about it I see lots of flies around them once the gills reach that stage. There also seems to be a strong odor that sometimes develops as it gets really old.


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OfflineWorkmanV
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Re: Role of deliquescence? [Re: Hypercube]
    #5531877 - 04/18/06 11:38 PM (17 years, 9 months ago)

This confused me at first too until I grew them. The spores are not in the ink but go airbourne before that part of the cap melts. I found this out the hard way when my entire lab was dusted with black shaggy mane spores. The gills are too tightly packed for efficient spore dispersal so the melting trims the bottom off the cap incrementally just after the spores drop off for that level. I assumed they would just drip off so I put a drip pan underneath the nearly mature mushrooms and went to bed. Doh!

Shaggy Mane Grow Log



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Edited by Workman (04/18/06 11:40 PM)


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OfflineHypercube
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Re: Role of deliquescence? [Re: Workman]
    #5532505 - 04/19/06 06:15 AM (17 years, 9 months ago)

Good to learn this stuff!  Mushrooms are amazing - and that's a great growlog, workman!

Haha, as a side note, I just woke up from a dream where I found a heap of shaggy mane and parasols.  I was really looking forward to a good meal.... :mad2:

Anyone know what the sci. name for parasols is?  And if they have cultivation potential?


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Invisibleshroomydan
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Re: Role of deliquescence? [Re: Hypercube]
    #5532510 - 04/19/06 06:21 AM (17 years, 9 months ago)

Lepiota procera is the Latin binomial. I don't know if anyone has cultivated them.


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OfflineWorkmanV
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Re: Role of deliquescence? [Re: shroomydan]
    #5535176 - 04/19/06 08:03 PM (17 years, 9 months ago)

Lepiota procera can be cultivated in outdoor beds. I haven't seen any reports of them being grown indoors.


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Re: Role of deliquescence? [Re: Workman]
    #5536073 - 04/19/06 11:37 PM (17 years, 9 months ago)



[image from "Svampodling till husbehov" by Tuvesson (Swedish book)]

According to Tuvesson they can be cultivated similarly to shaggy-mane..
Takes about twice as long to get them to fruit though..

:sun:


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Offlinewaixingren
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Re: Role of deliquescence? [Re: Speeker]
    #5536881 - 04/20/06 09:16 AM (17 years, 9 months ago)

i had a lepiota procera culture on wbs, very slow to colonize. sadly i lost the jar and found it months later rotten from bacteria. once it starts raining again i'll get a new culture, they grow all over my back yard.


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Invisibleshroomydan
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Re: Role of deliquescence? [Re: Workman]
    #5545140 - 04/22/06 07:54 PM (17 years, 9 months ago)

Quote:

Workman said:
The spores are not in the ink but go airbourne before that part of the cap melts.




As the spores go airborne, some of them will land in the ink...


The theory advanced by falcon, that the bottom gills melt to make way for spores from the upper gills to fall, makes since for shaggy mains, but it does not seem applicable to the smaller inky caps with flat caps.



I was observing a group of these small inky caps when I came up with the theory of insects carrying spores embedded in the sticky ink. I could be wrong, but the other theory does not seem to explain how small flat-capped Coprinus species gain evolutionary advantage through deliquescence.


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