L'organo sottocommessurale e la fibra di Reissner durante lo sviluppo di un Teleosteo oviparo
In the oviparous Teleost, Jordanella floridae, the Reissner fibre is early formed by the generalized secretory activity of the cells lining the ventricles. Subsequently the secretory activity becomes restricted to the subcommissural organ and the Reissner fibre is connected only with this structure. In Jordanella there is no secretory activity of the flexural organ. This finding differs from the data found in Gambusia (viviparous fish of the same suborder of Teleosts) and may be due to a different...