#pandorina

[adelicateculturecell]

"You've got your gonium, looking like several of those little green algae stuck together. And then there's this active pandorina, also packing together several green cells in its colony body as it moves around. And then we see the Eudoria... and then the pleodorina, which looks increasingly like the orderly sphere of the Volvox. In fact, this combination of footage feels less like a family portrait and more like a series of yearbook photos taken from kindergarten through senior year. Expect instead of the striking passage of time documented through the changes in a child's face, this is the striking passage of multicellular evolution documented through the changes in on algal family."

Journey to the Microcosmos- How Did Multicellularity Evolve?

Images Originally Captured by Jam's Germs

[er-cryptid]

Pandorina Diagram

[adelicateculturecell]

"It is a full division of labor, one that you'll find in many forms of multicellular organisms all over the planet. But why? Why go through all of this? Well, there's a lot of possible answers. But one of the simplest answers is probably captured by this tardigrade idly grazing on algae, looking a bit more like a "water cow" than a "water bear" here. This Chlamydomonas algae does not stand a chance. But you know who does stand a chance? A pandorina. It's simply too large to get into the tardigrade's mouth. And in this moment, hundreds of millions of years of evolution--of cells dividing, of being held together through incomplete cytokinesis, of biologically defining front and back--all of that comes together to save this little guy's life."

Journey to the Microcosmos- How Did Multicellularity Evolve?

Images Originally Captured by Jam's Germs

[adelicateculturecell]

"Multicellularity is one of those things that is so entwined with notions of complexity and the forward marching of evolution that it might feel like it has to be one of those singular evolutionary events: a moment that occurred once or maybe twice, and was maybe too difficult to ever replicate again. But it turns out that making the jump from unicellular to multicellular life has actually happened quite a few times in our planet's history. It's maybe surprisingly not htat difficult a transition. But finding a way to study it is."

Journey to the Microcosmos- How Did Multicellularity Evolve?

Images Originally Captured by Jam's Germs

Chlamydomonas-like algae 200x, Eudorina 630x, Pleodorina 100x, Gonium 400x, Tardigrade cannot eat Pandorina 630x, Volvox 630x

[adelicateculturecell]

"In the Chlamydomonas algae, they separate completely through a process called cytokinesis, becoming their own individual self. But with the colonial algae and on up, that cytokinesis is incomplete, leaving the cells connected. Those connections are further supported by an extracellular matrix made up of glycoprotiens. And as the number of cells increased through evolution, so too did the volume of that matrix. At certain points in a Volvox's life cycle, that transparent scaffolding can make up 99% of its volume."

Journey to the Microcosmos- How Did Multicellularity Evolve?

Images Originally Captured by Jam's Germs

[polinnia]

Mamma voglio anche io una #pandorina #catintheworld #bag #pandorine #regali #tankyousister #figlipelosi #picture #instacat #instapic #tagforlikes #catforpic #cat #saturdaymood #photography #white #style https://www.instagram.com/p/BpulZxbFjut/?utm_source=ig_tumblr_share&igshid=1oamu4uywhwbu

[vee-behindthescenes]

Dottora del buco del cul! #tivogliamobene #DOTTORESSA #laurea #pandorina

[margherita-dolcevita]

Regalatemelah. 😍😱😱😱 . . #pandorina #lepandorine #sonounadonna #nonsocosavoglio (presso ELNÒS Shopping)