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terrrifying
Stranger
Registered: 11/04/07
Posts: 1
Last seen: 16 years, 2 months
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science behind gas exchange in colonisation
#7594309 - 11/04/07 11:57 AM (16 years, 2 months ago) |
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Hi guys, new on the forums. I have been doing a lot of reading as I want to know as much as I can possibly understand before my first grow as I have decided that going into the grow with a great deal of knowledge will probably aid me. I have searched the forums but my question hasn’t really been answered . I know that gas exchange in the colonisation stage is important because without it the mycelium would suffocate but what I would like to know is why would it? Is it because of too much co2 or because it doesn’t have enough of something else. Is oxygen actually need for mycelium colonisation? I have read posts by some people saying that it is and others saying that it isn’t, if it is need, what for? I know that co2 is given off when the mycelium brakes down what ever it is eating with enzymes may it be brown rice flower or wood, but is this co2 actually useful to the mycelium, I know that I high concentration of co2 stops pinning but does it actually aid the growth of the mycelium? and is too much co2 bad? From what I have read it’s a bit of a grey subject on weather or not mycelium needs oxygen but I have read some reports on rhizomorphs carrying oxygen as well as nutrients. I am quite confused, apart from the nutrients obtained from the ground does the mycelium actually need any gasses from the air to thrive? Sorry if this is a bit of an in depth post but I would be grateful for any answers. thanks
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RogerRabbit
Bans for Pleasure



Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 3 days
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Re: science behind gas exchange in colonisation [Re: terrrifying]
#7594427 - 11/04/07 12:30 PM (16 years, 2 months ago) |
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Mushroom mycelium consumes air, just like we do. It also produces CO2, apparently as a byproduct, just like us. One benefit of a high CO2 level during colonization, is that less of the actual carbon in the substrate is converted to CO2 gas. In other words, if you allowed too much fresh air during colonization, more of the substrate would be 'consumed' by the time the mycelium got to the fruiting stage.
A rapid and sudden decrease in the ambient CO2 levels is a pinning trigger in cultivation, so adding fresh air at the same time as full colonization and the other pinning triggers helps ensure a full, even flush. RR
-------------------- Download Let's Grow Mushrooms semper in excretia sumus solim profundum variat "I've never had a failed experiment. I've only discovered 10,000 methods which do not work." Thomas Edison
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fastfred
Old Hand



Registered: 05/17/04
Posts: 6,899
Loc: Dark side of the moon
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Re: science behind gas exchange in colonization [Re: RogerRabbit]
#7596878 - 11/04/07 11:04 PM (16 years, 2 months ago) |
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Mushrooms perform aerobic respiration. Aerobic respiration is the release of energy from glucose or another organic substrate in the presence of oxygen.
The balanced chemical equation is: C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy
In short, to break down one sugar molecule you need 6 O2 molecules, which in turn produces 6 water molecules, 6 CO2 molecules, and releases energy.
-FF
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ThePyschonaut52
Stranger


Registered: 04/24/07
Posts: 982
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Re: science behind gas exchange in colonization [Re: fastfred]
#7597492 - 11/05/07 06:38 AM (16 years, 2 months ago) |
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-------------------- "In god we trust..." -I guess we're screwed.
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MotorCityMadman
Rubberfan andFunketeer



Registered: 10/02/06
Posts: 202
Loc: Motown (State of Mind)
Last seen: 14 years, 2 months
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Re: science behind gas exchange in colonization [Re: ThePyschonaut52]
#7610373 - 11/08/07 09:54 AM (16 years, 2 months ago) |
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Are we contributing to global warming by growing mushrooms? Oh my god...
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tahoe
Noob Slayer



Registered: 11/26/03
Posts: 6,274
Loc: N38.93829W119.98108
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Re: science behind gas exchange in colonization [Re: MotorCityMadman]
#7610621 - 11/08/07 11:03 AM (16 years, 2 months ago) |
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When I colonize wood chips I would fill a heavy duty trash bag half way up with wood chips and add a few pounds of spawn and mix it up and tie the end in a knot. 2 twice a month I open it up and look at it and it colonizes rapidly
-------------------- Stop experimenting half way through your first grow. Grow it to maturity, watch it, learn from it. Do this a few times then experiment with different ideas and figure out what works best for you.
My Legacy https://www.shroomery.org/forums/showflat.php/Number/22140987#22140987 Teh=The I need to proofread
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