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Foren => Mikrofoto-Forum => Thema gestartet von: rhamvossen in Juni 28, 2010, 09:49:52 VORMITTAG

Titel: Spirogyra
Beitrag von: rhamvossen in Juni 28, 2010, 09:49:52 VORMITTAG
Hi all,

At my garden house there is a ditch that is blooming with algae right now, a green slime is covering the surface. I've taken a sample from it:

(https://www.mikroskopie-forum.de/pictures002/43092_50048781.jpg)

Oblique illumination with plan-neofluar 25/0.80. Best regards,

Rolf
Titel: Re: Spirogyra
Beitrag von: Monsti in Juni 29, 2010, 20:23:33 NACHMITTAGS
A beautyful photo! It's Sprogyra sp., that's right but I can't say more.

Servus from Tyrol
Angie
Titel: Re: Spirogyra
Beitrag von: rhamvossen in Juni 30, 2010, 10:04:51 VORMITTAG
Hallo Angie,

Thank you for your compliments! As far as I can see there are 4 or 5 different Spirogyra species visible in the picture. But I'm certainly not sure about that,  I'm not an Algenexpert. Viele Grusse,

Rolf
Titel: Re: Spirogyra
Beitrag von: Bernhard Lebeda in Juni 30, 2010, 10:33:49 VORMITTAG
Zitat von: rhamvossen in Juni 30, 2010, 10:04:51 VORMITTAG
Hallo Angie,

Thank you for your compliments! As far as I can see there are 4 or 5 different Spirogyra species visible in the picture. But I'm certainly not sure about that,  I'm not an Algenexpert. Viele Grusse,



Good morning Rolf

Spirogyra can only be identified when conjugating, they build characteristic zygotes respectivly. What you see here are various stadiums of decay of the chloroplasts, I'm sorry to say.


Best wishes

Bernhard
Titel: Re: Spirogyra
Beitrag von: rhamvossen in Juni 30, 2010, 11:21:07 VORMITTAG
Hallo Bernhard,

Thank you for your insight. That's one of the nice things of doing microscopy, that you constantly learn new facts. Fascinating. How about the desintegrating chloroplasts, it seems that the spiral shape is still intact in most filaments. Best regards,

Rolf