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Synedra ulna

Posted: Sat Feb 29, 2020 9:51 pm
by 75RR
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Planapo 63x/1.4, DIC, 390µm length, 20µm width, stacked and stitched in Photoshop, Marine sample, Alboran Sea

Found this crazy long diatom (which I believe is Synedra ulna) on a drying slide. One can see the drop of water that surrounds it.

Linked image is 1500 pixels wide in order to make some more details visible.

Image

Re: Synedra ulna

Posted: Sat Feb 29, 2020 11:42 pm
by WhyMe
Wow, that's really nice!

Re: Synedra ulna

Posted: Sun Mar 01, 2020 8:13 am
by ImperatorRex
Hi 75RR,
interesting, those many small globular items. Do you have any idea? Are these oil drops or chloroplasts?

Re: Synedra ulna

Posted: Sun Mar 01, 2020 9:05 am
by 75RR
Thanks WhyMe and ImperatorRex

interesting, those many small globular items. Do you have any idea? Are these oil drops or chloroplasts?
I believe they are chloroplasts, I find it not uncommon in marine samples, particularly in Licmophora

Re: Synedra ulna

Posted: Sun Mar 01, 2020 3:58 pm
by Hobbyst46
Very nice photo ! I like the arrangement of the chloroplasts.
Last year, marine Ulva alga leaves were covered with "rosette" clusters of (maybe Synedra ?) long narrow diatoms. When they appear this spring, worthwhile to try and resolve the image to this level (albeit with phase, not DIC).

Re: Synedra ulna

Posted: Sun Mar 01, 2020 8:52 pm
by thomas.schwarz
beautiful

Re: Synedra ulna

Posted: Mon Mar 02, 2020 7:13 am
by 75RR
Many thanks Hobbyst46 and thomas.schwarz
Last year, marine Ulva alga leaves were covered with "rosette" clusters of (maybe Synedra ?) long narrow diatoms. When they appear this spring, worthwhile to try and resolve the image to this level (albeit with phase, not DIC).
Looking forward to your results