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Oyster mushroom
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| Photo Information |
Copyright: bob cat (bobcat08)
![Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 379 W: 19 N: 361]](http://i1.treknature.com/misc/g-s-g.gif) (1431) |
| Genre: Fungi |
| Medium: Color |
| Date Taken: 2008-10-22 |
| Categories: Fungi |
| Camera: Canon G5 |
| Exposure: f/2, 1/60 seconds |
| More Photo Info: [view] |
| Photo Version: Original Version |
| Date Submitted: 2008-11-06 2:29 |
| Viewed: 1141 |
| Points: 22 |
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| [Note Guidelines] Photographer's Note [Dutch] |
I found this fungus on an old fallen tree in the woods of Bennekom. As usual, I have the background not scrubbed away, so you can see in which area they grow. Thanks to Gert Paassen for the establishment of the ID and after a search on Internet, I come to the same conclusion that this must be the Oyster mushroom.
I'm only change the sharpness and size.
I dedicate this to mushroom Niek Bouwen for his interest shown. I will definitely not much upload photos. Take a rest break but I do keep a critical eye on you (-:
Thanks for viewing.
Have a nice weekend and TFS BOB
Some info about this mushroom.
Oyster mushroom
From Wikipedia, the free encyclopedia
(Redirected from Pleurotus ostreatus)Oyster mushroom
Fruiting body of the Oyster mushroom in the Havré wood Belgium.
Conservation status
Secure
Scientific classification
Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Tricholomataceae
Genus: Pleurotus
Species: P. ostreatus
Binomial name
Pleurotus ostreatus
Champ. Jura. Vosg. 1: 112, 1872
The Oyster mushroom, or Pleurotus ostreatus, is a common mushroom prized for its edibility. Long cultivated in Asia, it is now cultivated around the world for food. It is related to the similarly cultivated "king oyster mushroom". Oyster mushrooms can also be used industrially for mycoremediation purposes.Contents
Details of the gill structure.
Both the Latin and common name refer to the shape of the fruiting body. The Latin pleurotus (sideways) refers to the sideways-growth of the stem with respect to the cap while the Latin ostreatus (and the English common name, oyster) refers to the shape of the cap which resembles the bi-valve of the same name. Many also believe that the name is fitting due to the flavor resemblance to oysters.
In Chinese, they are called píng gū (literally "flat mushroom")
The oyster is one of the more commonly sought wild mushrooms, though it can also be cultivated on straw and other media. It often has the scent of anise due to the presence of benzaldehyde.
Description
Cap: 5-25 cm broad, fan or oyster-shaped; Natural specimens range from white to gray or tan to dark-brown; margin inrolled when young, smooth and often somewhat lobed or wavy. Flesh white, firm, varies in thickness due to stipe arrangement.
Gills: Gills are white to cream, descend stalk if present. If so, stipe off-center with lateral attachment to wood.
Spores: The spores form a white to lilac-gray print on dark media.
Stipe: Often absent. When present it is short and thick.
Taste: Mild
Odor: Often has a mild scent of anise.
There are no poisonous lookalikes that grow in North America, however Omphalotus nidiformis is a toxic lookalike that is found in Australia and Japan.
Habitat
The Oyster Mushroom is wide-spread in temperate and subtropical forests throughout the world. It is a saprotroph that acts as a primary decomposer on wood, especially deciduous, particularly beech
The mushroom usually is not fussy where it grows,however it does not like to grow near stinging nettles. This is probably due to the high acidity of the nettles.
Edible uses
The oyster mushroom is frequently used in Japanese and Chinese cookery as a delicacy: it is frequently served on its own, sometimes stuffed, or in stir-fry recipes with soy sauce.
Additional Information
Oyster mushrooms are a natural source of statin drugs. Studies have shown that they typically contain 0.4% to 2.7% statins on a dry weight basis. Z. Naturforsch Study. A number of studies on lab animals have shown that adding Pleurotus to the diet can reduce cholesterol under some conditions.
The oyster mushroom is also one of the few known carnivorous mushrooms. Its mycelia can kill and digest nematodes. This is believed to be a way to obtain nitrogen.
Oyster mushrooms contain a small amount of arabitol which can cause gastrointestinal distress in some people. Arabitol is a sugar alcohol similar to xylitol, manitol and sorbitol; these sugar alcohols are widely used food additives and can also have laxative effectives in susceptible individuals. |
jconceicao, marhowie, SunToucher, nglen, gracious, loot, eqshannon has marked this note useful
Only registered TrekNature members may rate photo notes. |
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Hallo bob,
Kan het een Oesterzwamzwam-Pleurotus ostreatus zijn?
Goede composietie en mooie kleuren.
Misschien onderaan iets meer ruimte geven?
groet gert
Hello Bob
A very clear and well focused capture of this interesting fungi.
the low POV is very good.
Excellent sharpness and detail.
I can see why it is called an oyster mushroom.
TFS
Wolf
Hi Bob,
Good details, light, and color in your "Oyster" room :)
I would prefer slightly more DOF, but this works well too.
Great note,
Howard
hallo Bob
mooie foto van de oesterzwam
sherpe foto
groetjes lou
Hoi Bob,
Wat aardig, dat je deze foto opdraagd. Ik hoop niet dat ik je er toe gemaakt heb. De paddestoel is zeker een erg mooie. Alsof ie zich nog verder moet ontpoppen. De adviezen die je reeds ontvangen hebt zijn allemaal goede en ik heb daar dus niets aan toe te voegen. Verder vind ik de omgeving van deze paddestoel erg mooi. Nog zo groen en echt natuurlijk.
Groeten en bedankt,
Niek
- nglen
(32330)
- [2008-11-08 11:43]
- [+]
Hi Bob. This is a very close up of the Fungi with fine detail and natural colours. Stands out well from the green moss. a nicee low POV. well done TFS. good notes too.
Nick..
Have a good week ahead.
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- PaulH
(13121)
- [2008-11-26 12:03]
- [+]
Hi Bob,
great to see another post from you my friend! This is a fascinating looking mushroom you share with us here. Good low POV, great detail and nicely composed, well done.
Paul
Hello my old friend from Netherlands,
Kia Ora!
sorry for my delay to come in to view your posting after absent for a while due to some unforseen circumstances!
this is a beautiful oyster mushroom with it unique and beautiful colour! the pov is great with good details as well
many thanks for the sharing
you take good care and my warmest regards to you always
your friend Tony
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- loot
![Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5452 W: 594 N: 3665]](http://i1.treknature.com/misc/g-g-g.gif)
(10077) - [2008-12-16 20:06]
- [+]
Hi Bob
As you know, I don't know much about fungi, but I've always appreciated these amazing images you and some of our other fungi masters dish up. This is a very "low level" of photography (chuckle) meaning you have to get down to grass roots (or dirt) level to capture these beauties. With other words, you have to slither around on your stomach or probably on your hands and knees to get close enough to capture these lovely images. Hats off my friend (I like to stay clean though, ha-ha-ha).
You've captured lovely light in this shot, showing the fungi, the surrounding moss and the habitat with excellent colours and contrasts. Perhaps a little more DOF could have been beneficial, but I notice that you had an apparent shortage of light and after all the result was quite sufficiently pleasing.
Good work MF and TFS.
Regards
Loot
good Lord...another fungi man eh? the only mushrooms I see here and now are on the shelf at Safeway!:0 Very good shot so sharp and ....well honestly it looks like film!
Bob
Hello Bob,
Great capture.
Excellent details with good composition.
Light focus and sharpness are fantastic.
I liked the notes.
![Gold Star Critiquer/Gold Note Writer [C: 1219 W: 2 N: 4611]](http://i1.treknature.com/misc/g-n-g.gif)
(13938)