Nematode and Oscillatoria

Jacek · Post by **Jacek** » Mon Apr 23, 2012 3:02 am

nematode
VIDEO: http://www.youtube.com/watch?v=LLlduJZf ... e=youtu.be

Oscillatoria sp
VIDEO: http://www.youtube.com/watch?v=32koAJyG ... e=youtu.be

Marek Mis · Post by **Marek Mis** » Mon Apr 23, 2012 3:52 am

Jacek,

Beautiful set ! First two in phase contrast and the 7 th in DIC are wonderful - amazing details.

Marek

RogelioMoreno · Post by **RogelioMoreno** » Mon Apr 23, 2012 4:20 am

Jacek,

Very nice set, the nematode DIC are beautiful.

Rogelio

Pau · Post by **Pau** » Mon Apr 23, 2012 7:41 am

Jacek,
Excellent pictures.

in images 5, a and 7 it seems that there are other smaller nematodes inside, is this a viviparous specie?

Quote from Wikipedia:
A few species are known to be ovoviviparous. The eggs are protected by an outer shell, secreted by the uterus. In free-living roundworms, the eggs hatch into larvae, which appear essentially identical to the adults, except for an underdeveloped reproductive system; in parasitic roundworms, the life cycle is often much more complicated.[26]

Nematodes as a whole possess a wide range of modes of reproduction.[27] Some nematodes, such as Heterorhabditis spp., undergo a process called endotokia matricida: intrauterine birth causing maternal death.[28] Some nematodes are hermaphroditic, and keep their self-fertilized eggs inside the uterus until they hatch. The juvenile nematodes will then ingest the parent nematode.

Bruce Taylor · Post by **Bruce Taylor** » Mon Apr 23, 2012 9:26 am

Wonderful!

The video of the viviparous nematode is particularly interesting. It almost makes me like them.

Almost.

Jacek · Post by **Jacek** » Mon Apr 23, 2012 11:58 am

Thank you for your comments

Yes, they are viviparous nematodes. The observation of the eye looked great. My camera is not the best, worst deal with DIC.

arturoag75 · Post by **arturoag75** » Mon Apr 23, 2012 10:40 pm

very nice subjects

arturo