|
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
|
MycoBotanisaceae
MycoBotanisaceae



Registered: 11/20/16
Posts: 20
Loc: Canada
Last seen: 6 years, 9 months
|
Difference between heterokaryotic,dikaryotic?
#24028926 - 01/21/17 06:49 PM (7 years, 9 days ago) |
|
|
Hey guys,
The subject pretty much explains it, I'm currently learning about mushrooms and reading up on the science of them and etc. I have a couple botany books that have a "Fungi" section. Once the chapter talks about dikaryotic and heterokaryotic in the reproduction part I get confused. Not sure If I'm missing any other "yotics" but anyways just trying to understand the differences.
Thanks
|
leschampignons
Biochemistry + Mycology


Registered: 08/30/13
Posts: 1,583
Loc: NY/NJ/ME
Last seen: 4 days, 12 hours
|
|
"A heterokaryon is a fungal cell which has two or more genetically-distinct but allelically-compatible nuclei, as suggested by this resource, as well as this Wikipedia article. A dikaryon is a fungal cell which has precisely two genetically-distinct but allelically-compatible nuclei, as shown here and here."
source
|
RealityCzech
Entropy enthusiast


Registered: 12/29/16
Posts: 90
Last seen: 6 years, 3 months
|
Re: Difference between heterokaryotic,dikaryotic? [Re: leschampignons]
#24039570 - 01/25/17 07:01 PM (7 years, 5 days ago) |
|
|
You are missing monokaryons. These are fungal cells with a single nucleus. Two monokaryons fuse to form a dikaryon.
Even mycelium needs sex!
|
Pezam
Edible Warrior



Registered: 01/01/17
Posts: 97
Last seen: 6 years, 9 months
|
Re: Difference between heterokaryotic,dikaryotic? [Re: RealityCzech]
#24039951 - 01/25/17 10:03 PM (7 years, 5 days ago) |
|
|
I think that you might not understand dikaryions?
--------------------
|
RealityCzech
Entropy enthusiast


Registered: 12/29/16
Posts: 90
Last seen: 6 years, 3 months
|
Re: Difference between heterokaryotic,dikaryotic? [Re: Pezam]
#24040866 - 01/26/17 10:20 AM (7 years, 4 days ago) |
|
|
Quote:
Pezam said: I think that you might not understand dikaryions?
As a simplified explanation...
Two monokaryons undergo plasmogamy wherein the cytoplasm of the two distinct monokaryotic cells merge without merging the nuclei - producing a dikaryon. The mycelium then continues to grow in the dikaryotic state until fruiting bodies produce spores. At this point karyogamy takes place, fusing the two nuclei, and finally meiosis takes place to produce monokaryotic spore. This is, by definition, sexual reproduction... even if it is not exactly the same haploid/diploid method we use.
Am I misunderstanding this? ---------------------------------------- EDIT: I just now realized you might mean the OP. In which case, please feel free to ignore me.
Edited by RealityCzech (01/26/17 10:24 AM)
|
bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,889
Loc: Milky way
|
Re: Difference between heterokaryotic,dikaryotic? [Re: RealityCzech]
#24046072 - 01/28/17 10:08 AM (7 years, 2 days ago) |
|
|
Dikaryotic is two separate nucleus. It's only diploid after karyogamy to produce spores. Then haploid in monokaryotic mycelium Then dikaryotic (not diploid) for a strain to form and make the mycelium we think of when we think of mycelium. Karyogamy happens in the spore production apparatus and then the diploid cells are formed
Not very similar to much other organisms
Also they're homothallic since two spores from the same mushroom can make a new fertile offspring.
There's an A and a B mating type so they're bifactorial
|
Pezam
Edible Warrior



Registered: 01/01/17
Posts: 97
Last seen: 6 years, 9 months
|
Re: Difference between heterokaryotic,dikaryotic? [Re: bodhisatta]
#24046676 - 01/28/17 02:59 PM (7 years, 2 days ago) |
|
|
Quote:
bodhisatta said: Dikaryotic is two separate nucleus. It's only diploid after karyogamy to produce spores. Then haploid in monokaryotic mycelium Then dikaryotic (not diploid) for a strain to form and make the mycelium we think of when we think of mycelium. Karyogamy happens in the spore production apparatus and then the diploid cells are formed
Not very similar to much other organisms
Also they're homothallic since two spores from the same mushroom can make a new fertile offspring.
There's an A and a B mating type so they're bifactorial
Well said.
--------------------
|
|