Can you help me identify this ciliate?

Images made through a microscope. All subject types.

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Ayla
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Joined: Wed Jul 07, 2021 8:53 am
Location: Murcia

Can you help me identify this ciliate?

Post by Ayla »

Any suggestion?



Thanks in advance
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Pau
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Re: Can you help me identify this ciliate?

Post by Pau »

Could it be Frontonia with a fagocited long cyanobacteria filament occupying its periphery?

Take a look at the Ehrenberg's original image of Frontonia leuca at http://www.infusoria.org/?page_id=401
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Pau

Ayla
Posts: 27
Joined: Wed Jul 07, 2021 8:53 am
Location: Murcia

Re: Can you help me identify this ciliate?

Post by Ayla »

Es muy parecida también a

Chlamydodon sp.

Gracias por responder.

Bruce Taylor
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Re: Can you help me identify this ciliate?

Post by Bruce Taylor »

It is not Chlamydodon (a marine ciliate). That genus has a distinctive "traintrack" around the perimeter of the cell, but it is colorless, whereas this is green. Also, if you look closely, you'll see that it is a coiled strand of cyanobacteria, with a free end poking out at the lower right side (another short segment of cyanobacteria is visible in the middle). Chlamydodon would also have an oral basket, in the central anterior of the cell. Pau is right, this is almost certainly a species of Frontonia. We don't see the mouth, unfortunately, but the cell is surrounded by trichocysts and has a slightly acuminate posterior (despite being distorted by the long strand of cyanobacteria it has ingested).
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Ayla
Posts: 27
Joined: Wed Jul 07, 2021 8:53 am
Location: Murcia

Re: Can you help me identify this ciliate?

Post by Ayla »

Gracias.

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