Archive image from page 207 of The cytoplasm of the plant. The cytoplasm of the plant cell cytoplasmofplant00guil Year: 1941 Guilllermond - Atkinson — 192 — Cytoplasm moreover, that the images obtained by osmic acid correspond always to those produced by silver methods and there has been no proof whatever that the dictyosomes can really be homologized with the Golgi network. One can not, therefore, suppress the thought that under this name have been grouped very diverse formations. One is forced to admit that there is reason to distin- FiG. 129. — Barley root. 1, meristem vitally stained
Archive image from page 207 of The cytoplasm of the plant. The cytoplasm of the plant cell cytoplasmofplant00guil Year: 1941 Guilllermond - Atkinson — 192 — Cytoplasm moreover, that the images obtained by osmic acid correspond always to those produced by silver methods and there has been no proof whatever that the dictyosomes can really be homologized with the Golgi network. One can not, therefore, suppress the thought that under this name have been grouped very diverse formations. One is forced to admit that there is reason to distin- FiG. 129. — Barley root. 1, meristem vitally stained with neutral red; vacuolar system deeply stained, more or less reticulate. 2-11 Bensley's method; 2-9, meristem; vacuolar system has the appearance of Holmgren's apparatus. 10, 11, differentiating cells; Holmgren's apparatus transformed into large vacuoles. guish between formations which are perhaps entirely different: the Golgi network of Golgi and Cajal obtained by means of silver methods and the dictyosomes later brought out by osmic methods. Holmgren, on the other hand, by the use of special methods, described in certain animal cells a network of hyalin and colorless canaliculi appearing as clearly as if punched out of the dense and stained cytoplasm. This apparatus, called the canaliculi of Holm- gren or fluid canaliculi or trophospongium, has been found in a great number of animal cells. Holmgren at first considered it as
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