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#cnidaria — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #cnidaria, aggregated by home.social.

  1. `Notably, sleep deprivation, ultraviolet radiation, and mutagens increased neuronal DNA damage and sleep pressure, while spontaneous and induced sleep facilitated genome stability in both the diurnal and crepuscular cnidarians. These results suggest that DNA damage and cellular stress in simple nerve nets may have driven the evolution of sleep.`

    doi.org/10.1038/s41467-025-674

    #cnidaria #invertebrates #marineBiology #neurology #neuroscience #evolution #sleep #homeostasis

  2. `Notably, sleep deprivation, ultraviolet radiation, and mutagens increased neuronal DNA damage and sleep pressure, while spontaneous and induced sleep facilitated genome stability in both the diurnal and crepuscular cnidarians. These results suggest that DNA damage and cellular stress in simple nerve nets may have driven the evolution of sleep.`

    doi.org/10.1038/s41467-025-674

    #cnidaria #invertebrates #marineBiology #neurology #neuroscience #evolution #sleep #homeostasis

  3. `By generating localized Chordin sources in the Chordin morphant background, we showed that mobile Chordin is necessary and sufficient to establish a peak of BMP signaling opposite to Chordin source. These results provide evidence for BMP shuttling in a bilaterally symmetric cnidarian and suggest that BMP shuttling may have been functional in the potentially bilaterally symmetric cnidarian-bilaterian ancestor.`

    science.org/doi/10.1126/sciadv

    #evolution #zoology #cnidaria #bilateria

  4. `By generating localized Chordin sources in the Chordin morphant background, we showed that mobile Chordin is necessary and sufficient to establish a peak of BMP signaling opposite to Chordin source. These results provide evidence for BMP shuttling in a bilaterally symmetric cnidarian and suggest that BMP shuttling may have been functional in the potentially bilaterally symmetric cnidarian-bilaterian ancestor.`

    science.org/doi/10.1126/sciadv

    #evolution #zoology #cnidaria #bilateria

  5. WARNING look away if you don't like stinging things... Physalia, or the bluebottle, a fairly common sight on beaches after a strong wind has blown them ashore. They're not a single organism, but a #community of cooperating zoöids. #JuneSea #photography #macro #cnidaria #beach #EastCoastKin

  6. (04 Apr) Thousands of strange, blobby creatures are washing up on California beaches

    What are the blue blobs washing up on California beaches? What to know about these strange sea creatures.

    s.faithcollapsing.com/h52zc
    Archive: ais: archive.md/wip/7mSUy ia: s.faithcollapsing.com/9w527

    #animals #cnidaria

  7. (04 Apr) Thousands of strange, blobby creatures are washing up on California beaches

    What are the blue blobs washing up on California beaches? What to know about these strange sea creatures.

    s.faithcollapsing.com/h52zc
    Archive: ais: archive.md/wip/7mSUy ia: s.faithcollapsing.com/9w527

    #animals #cnidaria

  8. #Cnidaria are a very old group of animals in terms of #evolutionary #biology. The last common stem species, which they share with all further derived animals, the Bilateria, was the first to have really differentiated tissue. Solitary species and especially Coral colonies create #speciesrich ecosystems and are sensitive to #globalwarming. Therefore, efforts to achieve greater #climateneutrality are important.
    © #StefanFWirth 2025

    Photos
    Berlin Aquarium, sea anemones, newedit 2025 © S. F. W.

  9. #Cnidaria are a very old group of animals in terms of #evolutionary #biology. The last common stem species, which they share with all further derived animals, the Bilateria, was the first to have really differentiated tissue. Solitary species and especially Coral colonies create #speciesrich ecosystems and are sensitive to #globalwarming. Therefore, efforts to achieve greater #climateneutrality are important.
    © #StefanFWirth 2025

    Photos
    Berlin Aquarium, sea anemones, newedit 2025 © S. F. W.

  10. Une fiche générique pour les #méduses Aurélia spp., si difficiles à discriminer à l’œil nu, vient de paraître.

    MÜLLER Yves, MARAN Vincent, BONNET Delphine, SITTLER Alain-Pierre in : #DORIS, 30/12/2024 :
    Aurelia spp. Lamarck, 1816, doris.ffessm.fr/ref/specie/129

    #biodiversite #Cnidaria #Scyphozoa #cosmopolite #biodiversity #Discomedusae #ephyrule #planula #strobilation #BioSubaquatique

  11. In collaboration with Alison Cole and Ulrich Technau we also mapped the peptidergic #connectome of #Nematostella, by linking peptide-expressing to receptor-expressing cells.
    In #Cnidaria, tissues are extensively connected via #neuropeptide signalling.
    #neuroscience

  12. Previously, only one #GPCR with a ligand was known in #cnidaria, the receptor for the #Clytia Maturation-Inducing-Hormone. This receptor was found by Gonzalo Quiroga Artigas and Philipp Bauknecht in our lab, in a collaboration with Evelyn Houliston.
    journals.plos.org/plosbiology/
    #cnidaria #neuropeptide #evolution #neuroscience

  13. To get a comprehensive list of #neuropeptides, we combined #bioinformatic screening and mass spectrometry in collaboration with Amanda Kieswetter and Liesbet Temmerman at KU Leuven. We found 15 new proneuropeptides and confirmed the endogenous processing (cleavage, amidation etc) of many of them. #Nematostella has at least 33 neuropeptide precursors.
    #cnidaria #neuroscience

  14. In our new preprint we characterise neuropeptide signalling in the cnidarian #Nematostella.
    biorxiv.org/content/10.1101/20
    Daniel Thiel and Luis Yanez-Guerra screened 64 neuropeptides against 161 G-protein coupled receptors (#GPCR) and found activating peptide ligands for 31 receptors.
    #cnidaria #neuropeptide #evolution #neuroscience

  15. Great cover image at @PLOSBiology

    journals.plos.org/plosbiology/

    #oceanography
    #pacific
    #Cnidaria

    **Floating neustonic life in the plastic-rich North Pacific Garbage Patch**
    Floating life (obligate neuston) is a core component of the ocean surface food web. [...] Clockwise from top left, by-the-wind sailor (*Velella* sp.), blue button (*Porpita* sp.), Portuguese man-o-war (*Physalia* sp.), blue sea dragon (*Glaucus* sp.) and violet snail (*Janthina* sp.). *Image Credit: Chong et al.*