MicrobeHunter.com Microscopy Forum

Posted: **Wed Mar 07, 2018 9:04 pm**

Hello everyone.
An observation Calcium oxalate.
Taken from an onion.

Photo 1.
Plan 4 X pol + fond clair.
Stack de 17 vues.

: 1.jpg (460.31 KiB) Viewed 3456 times

Photo 2.
Plan 10 X pol + éclairage oblique.
Stack de 15 vues.

: 2.jpg (412.28 KiB) Viewed 3456 times

Photo 3.
Plan 10 X pol + éclairage oblique.
Stack de 20 vues.

: 3.jpg (431.53 KiB) Viewed 3456 times

Photo 4.
Plan 10 X pol + éclairage oblique.
Stack de 25 vues.

: 4.jpg (449.49 KiB) Viewed 3456 times

Photo 5.
Plan 10 X pol + fond sombre.
Stack de 15 vues.

: 5.jpg (318.72 KiB) Viewed 3456 times

Cordialement seb

Posted: **Wed Mar 07, 2018 9:07 pm**

Very good as usual. Like the second one very much.

Posted: **Wed Mar 07, 2018 9:21 pm**

Really like these colourful and vibrant images. The darkfield's 'golden ingots' are also very nice.

Posted: **Wed Mar 07, 2018 9:39 pm**

Wow -- Very beautiful images!

Posted: **Wed Mar 07, 2018 10:57 pm**

Magnificent. Just bookmarked it!
Are these the commonplace lower epidermis cells of the onion bulb? unstained? and the crystals are only visible under POL?

Posted: **Tue Mar 13, 2018 3:36 am**

Bonjour à tous
Merci beaucoup
La pelure provient de la couche extérieure de oignon

Posted: **Tue Mar 13, 2018 4:51 pm**

Magnificent.

Posted: **Tue Mar 13, 2018 10:19 pm**

I think that I identify such crystals in the external skin of a garlic clove in bright field, but it is all without the magnificent colors of course. Need to stain it, in the absence of polarization accessories.

Posted: **Wed Mar 14, 2018 4:08 pm**

Nice colours

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Oxalate de calcium

Oxalate de calcium

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