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Details van artikel 46 van 227 gevonden artikelen
| Titel: |
Collapse behaviour in the primitive sea anemone Protanthea simplex |
| Auteur: |
McFarlane, I. D. |
| Verschenen in: |
Marine & freshwater behaviour & physiology |
| Paginering: | Jaargang 11 (1985) nr. 4 pagina's 259-269 |
| Jaar: |
1985-07 |
| Inhoud: |
Protanthea shows a previously undescribed behaviour pattern, in which an expanded anemone rapidly loses muscular tone, collapses, and hangs limply. Recovery is slow (30-60 minutes). In captivity collapse occurs every 5-27 hours (mean 13.5 hours). It involves a considerable loss of volume and possibly aids removal of waste materials from the coelenteron. Collapse is associated with high levels of endodermal slow system (SS2) activity and a reduction in spontaneous nerve net activity. These events probably cause inhibition and reduction of spontaneous contractions and hence loss of muscle tone. Excess magnesium, however, also eliminates contractions but does not cause collapse, so the normal behaviour must also include mouth opening and subsequent loss of coelenteric fluid. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 46 van 227 gevonden artikelen
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