#Polyp

rexirexi
2024-12-26

phys.org/news/2024-12-scientis

a delicate "Goldilocks" zone—a specific magnesium concentration range—where wraps around , a primordial inorganic polymer of phosphate known as polyphosphate, and magnesium ion condensates.

"Similar to a thin eggshell covering a liquid-like interior, this seemingly simple structure may help cells organize and protect their genetic material."

Spektrum (inoffiziell)spektrum@anonsys.net
2023-08-02
Quallen gehören zu den ältesten Tieren der Erde. Sehr gut erhaltene Fossilien beweisen: Es gab sie bereits vor 500 Millionen Jahren.#Quallen #Kambrium #KambrischeExplosion #Fossil #Versteinerung #Meduse #Polyp #Paläobiologie #Biologie
Seit Urzeiten auf der Welt
Scientific Frontlinesflorg
2023-06-08

Nearly all arise from a . One of the best ways to reduce the incidence of colorectal cancer is to stop the growth at the polyp stage. There’s more than one way for a polyp to develop. The two main types of polyps are tubular adenomas and sessile serrated polyps.

sflorg.com/2023/06/mcb06082301

The Metaverse Doctordoctorpretesh
2023-05-19
Dezene Huber 🌻dezene@ecoevo.social
2023-04-20

One of the best uses of #DNA 🧬 #barcoding is linking different life stages of single #species that appear different from each other and do different things.

In this paper the authors used barcoding to figure out which #polyp (sedentary) and #medusa (swimming) life stages of several #hydrozoans (related to #sea #jellies and sea #anemones) belong to each other.

🔗: peerj.com/articles/15118/

Title: Odd family reunion: DNA barcoding reveals unexpected relationship between three hydrozoan species

From figure heading (see paper in link): “Figure 4: Morphological characters of Halopsis ocellata.
Halopsis ocellata. (A) Colony growing on a polychaete tube. (B, C) Hydrothecae (hy) with polyps. (D, E) Nematothecae (ne). (F) Mastigophore (ma) and Isorhiza (is). (G, H) Adult hydromedusa stage. (I, J) Details of the umbrella margin of the adult hydromedusa including a statocyst (st). Image Credits: Lara M. Beckmann, Fredrik Broms (G–I), Joan J. Soto-Angel.”

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