File:Paracentrotus lividus coelomogenesis.jpg
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| Description | FIGURE 11. Coelomogenesis in Paracentrotus lividus during the embryonic and larval periods. Developmental stages are as follows: (A) prism stage (prism); (B) early-pluteus stage (eP); (C) 2-arm pluteus stage (2-arm); (D,E) hydroporic canal stage (HypC); (F) constricted coelomic pouch stage (ConsCP); (G,H) stone canal stage (StC); (I) vestibule invaginated stage (VesInv); (J–N) vestibule contact stage (VesCon). In (A–J,N), images were acquired using bright-field light microscopy. In (K–M), images are maximum intensity projections of confocal z-stacks of larvae co-labeled for acetylated α-tubulin (cilia; yellow) and DNA (nuclei; blue), and they correspond to projections of the entire specimen. In (A), the embryo is in ventral view, with the animal pole up. In (B–D,F–L), larvae are in anterior view, with the ventral side up. In ((E) inset, (M,N)), larvae are in left view, with the ventral side to the left. (D–N) Close-ups of the region outlined by the yellow box in (C). (D,F,G,J,K) Close-ups of the larval digestive tract to show the right and the left coelomic pouches. (E,H,I,L–N) Close-ups of the left coelomic pouch region. In (A–D,F–N), white dotted lines outline the right and the left coelomic pouches as well as their derivatives. In ((E), inset (H,L)), the red dotted line delineates the hydropore. ((E) inset) Close-up of the hydropore in anterior view. In (F), red arrowheads highlight constrictions within the coelomic pouches. In (G), the white arrowhead marks the isthmus between the right axohydrocoel and the right somatocoel. In (I–K), the cyan dotted line highlights the vestibule. Scale bar: (A–N) 30 μm; ((E) inset) 7.5 µm. AcTub: acetylated α-tubulin; Ar: archenteron; Coel: coelomocyte; Cs: cardiac sphincter; Es: esophagus; HC: hydroporic canal; Hyp: hydropore; LA: left axocoel; LC: left coelomic pouch; LH: left hydrocoel; LS: left somatocoel; Mo: mouth; RAH: right axohydrocoel; RC: right coelomic pouch; RS: right somatocoel; SC: stone canal; St: stomach; Ves: vestibule. |
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https://www.frontiersin.org/articles/10.3389/fcell.2022.966408/full Developmental atlas of the indirect-developing sea urchin Paracentrotus lividus: From fertilization to juvenile stages, Front. Cell Dev. Biol., 31 October 2022 Sec. Morphogenesis and Patterning Volume 10 - 2022, https://doi.org/10.3389/fcell.2022.966408 |
| Author | Laurent Formery, Axel Wakefield, Maeva Gesson, Ludovic Toisoul, Guy Lhomond, Laurent Gilletta, Régis Lasbleiz, Michael Schubert, Jenifer C. Croce |
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| current | 11:21, 6 March 2024 | | 691 × 1,260 (1.18 MB) | Rasbak (talk | contribs) | {{Information |description=FIGURE 11. Coelomogenesis in Paracentrotus lividus during the embryonic and larval periods. Developmental stages are as follows: (A) prism stage (prism); (B) early-pluteus stage (eP); (C) 2-arm pluteus stage (2-arm); (D,E) hydroporic canal stage (HypC); (F) constricted coelomic pouch stage (ConsCP); (G,H) stone canal stage (StC); (I) vestibule invaginated stage (VesInv); (J–N) vestibule contact stage (VesCon). In (A–J,N), images were acquired using bright-field ligh... |
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