Abstract
Recently, we (Kling & Bodard, 1986) described the morphogenesis of the vegetative thallus of Gracilaria verrucosa and compared this development with that of other algae and higher plants (cormophytes). The development of the thallus is based on a series of jointed cladomes terminated by apical cells designated A1, A2, A3… An. We have not demonstrated the existence of lateral “pleuridie” cells (Kling & Bodard, 1986). The thallus that comes from the successive division of this series of apical cells, evolves both the cortex and the medullar cells. The originality of this construction lies in the continuous formation of apical cells which are further being separated into subapical or segment cells SA1, SA2, SA3… SAn. These cells are formed only secondarily.
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Reference
Kling, R. & M. Bodard, 1986. La construction du thalle de Gracilaria verrucosa (Rhodophyceae, Gigartinales): édification de la fronde; essai d’interprétation phylogénétique.Cryptogamie, Algologie 7: 231–246.
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© 1987 Dr W. Junk Publishers, Dordrecht
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Kling, R., Bodard, M. (1987). Morphogenesis of the frond of Gracilaria verrucosa (Huds.) Papenfuss: the differentiation of vegetative and sexual areas. In: Ragan, M.A., Bird, C.J. (eds) Twelfth International Seaweed Symposium. Developments in Hydrobiology, vol 41. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4057-4_29
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DOI: https://doi.org/10.1007/978-94-009-4057-4_29
Publisher Name: Springer, Dordrecht
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