more unknowns

Images made through a microscope. All subject types.

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jc maccagno
Posts: 509
Joined: Tue Dec 21, 2010 5:43 pm

more unknowns

Post by jc maccagno »

Collected from moss on my patio Kamloops BC Meijii 40 X objective photographed with PaxCam ARC
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Mitch640
Posts: 2137
Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

Interesting structures. I have seen something very like this posted here in the last few months, but have forgotten just what it was. You might look through the threads going back a ways.

jc maccagno
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Joined: Tue Dec 21, 2010 5:43 pm

Post by jc maccagno »

Similar structures were posted on Dec 9 2010 by Franz

BJ
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Location: England

Post by BJ »

Hi,

I´ve got the answer at last !!

I am really pleased with myself this time!

It is the cleistothecium of a fungus in the genus Phyllactinia.

This genus is pathogenic on tree leaves causing "powdery mildew".

The cleistothecium is a reproductive structure. It falls off the leaf and parachutes down using the appendages as a parachute. The fungus usually overwinters in this stage and then releases ascospores in Spring to infect the new opening leaves. The spores germinate producing hyphae which enter the leaf through the stomata.

See these websites for a bit more info:

http://en.wikipedia.org/wiki/Phyllactinia

http://botany.upol.cz/atlasy/system/gal ... %20fraxini

http://pnwfungi.org/featuredfungigallery.htm ....(see featured fungus #20)

I was way off track when trying to work out what it was with Franz´s specimen. The clue that got me thinking it was a fungus was what look like short hyphae in the first photo in this thread.

Ciao
Brian

Mitch640
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Joined: Sun Aug 15, 2010 1:43 pm

Post by Mitch640 »

I could not find Franz's thread, but it is not the one with the black round ball and 6 spokes coming out of it. It looked exactly like your shot in the first post above, glass laboratory beakers in different positions. Exactly like that. Can't figure out where it went, cause I spent almost an hour searching for it. :)

Maybe Franz will drop in and tell us, if we are remembering right and it is even his image.

rjlittlefield
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Post by rjlittlefield »

For reference, Franz's image is here: http://www.photomacrography.net/forum/v ... hp?t=11657 .

That thread is already cross-linked to this one.

--Rik

Franz Neidl
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Joined: Wed Jan 14, 2009 11:59 am
Location: Italy

Post by Franz Neidl »

Hello Brian, jc maccagno and Rik,

this is an adventurous story! Thank you very much for your help!
I never thought it could be a fungus.

Franz

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