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Last name: CALVO RUIZ
First name: Purificación
En esta tesis se estudian la morfogénesis de regeneración ultraestructura de los quistes y proceso de enquistamiento en el Ciliado Hipotico histriculus similis.
The ultrastructure of the cyst wall has been studied in severa! hypotrichous ciliates. In Oxytrichafallax (Grimes, 1973),Pleurotricha sp. (Matsusaka, 1976), Stylonychia mytilus (Walker et al., 1975), Gastrostyla steinii (Walker et al., 1980) and Laurentiella acuminata (Gutierrez et al., l 980), the cyst wall is composed of four layers called,...
La distribution de PADN lors de la division macronucléaire du cilié hypotriche Laurentiella acuminata a été étudiée par cytophotométrie. Le degré moyen d'inégalité de la répartition de PADN entre cellules sceurs est 10,05 p. cent. Les différences de teneur en ADN sont plus grandes entre deux cellules tirées au sort qu'entre deux cellules...
U ltrastructural study of Urostyla grandis cysts shows that the cyst wall is constitued of three layers :a fibrous ectocyst, a structurally homogeneous endocyst and a granular layer that exhibits a dispersed granular or fibrillar structure. The maintenance of only a few kinetosomes and scattered bundles of subpellicular microtubules, and other...
The cortical morphogenesis of regeneration in Histriculus similis has been studied in this work at level of electronic microscopy. The first signs of the regeneration process become evident one hour after the treatment with urea. During the early steps of the cortical morphogenesis of regeneration, the oral primordium , paroral ciliation...
Se ha secuenciado un fragmento de un gen de la a-tubulina, amplificado por PCR, del cil iado hipotrico Histriculus cavicola. Este fragmento, de 1182 pb, contiene un codón de terminación (UAA) en la fase de lectura, que en otros ciliados hipotricos codifica la glutamina. La comparación de los genes de la cx-tubulina de varias clases de ciliados...
Cytochrome c 550 is an extrinsic component in the luminal side of photosystem II (PSII) in cyanobacteria, as well as in eukaryotic algae from the red photosynthetic lineage including, among others, diatoms. We have established that cytochrome c 550 from the diatom Phaeodactylum tricornutum can be obtained as a complete protein from the membrane...
Chloride (Cl−) has been recently described as a beneficial macronutrient, playing specific roles in promoting plant growth and water-use efficiency (WUE). However, it is still unclear how Cl− could be beneficial, especially in comparison with nitrate (NO3 −), an essential source of nitrogen that shares with Cl− similar physical and osmotic...