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Serras F, Speksnijder JE. F-Actin is a marker of dorsal induction in earlyPatella embryos. Rouxs Arch Dev Biol. 1990;199(4):246-250doi: 10.1007/BF01682084.
Serras, F., & Speksnijder, J. E. (1990). F-Actin is a marker of dorsal induction in earlyPatella embryos. Roux's archives of developmental biology : the official organ of the EDBO, 199(4), 246-250. https://doi.org/10.1007/BF01682084
Serras, Florenci, and Speksnijder, Johanna E. "F-Actin is a marker of dorsal induction in earlyPatella embryos." Roux's archives of developmental biology : the official organ of the EDBO vol. 199,4 (1990): 246-250. doi: https://doi.org/10.1007/BF01682084
Serras F, Speksnijder JE. F-Actin is a marker of dorsal induction in earlyPatella embryos. Rouxs Arch Dev Biol. 1990 Apr;199(4):246-250. doi: 10.1007/BF01682084. PMID: 28306110.
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Rouxs Arch Dev Biol. 1990 Apr;199(4):246-250. doi: 10.1007/BF01682084.

F-Actin is a marker of dorsal induction in earlyPatella embryos.

Roux's archives of developmental biology : the official organ of the EDBO

Florenci Serras, Johanna E Speksnijder

Affiliations

  1. Department of Experimental Zoology, University of Utrecht, 3584 CH, Utrecht, The Netherlands.

PMID: 28306110 DOI: 10.1007/BF01682084

Abstract

The dorsal-ventral axis inPatella vulgata embryos is established at the 32-cell stage by an inductive interaction between the animal micromeres and one vegetal macromere. This vegetal macromere, once induced, is called the 3D macromere, and marks the future dorsal side of the embryo. We examined the pattern of filamentous (F) actin in such embryos using fluorescent phalloidin and found that this dorsal 3D macromere contains more F-actin than the remainder of the cells. In addition, only one of its two daughter cells, i.e. the 4D macromere, retains this higher density. In embryos in which the establishment of the dorsal-ventral axis has been experimentally inhibited via treatment with monensin, such differences in F-actin were not found. These results suggest that the appearance of an increased density of F-actin in the dorsal 3D and 4D macromeres of normal embryos requires the inductive interactions that establish the dorsal-ventral axis. We therefore conclude that F-actin is an early marker for dorsal induction in thePatella embryo.

Keywords: Cell-to-cell interactions; F-actin; Induction; Molluscan embryos; TRITC-phalloidin

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