. The cytoplasm of the plant cell. Plant cells and tissues; Protoplasm. â 'â â \Zy D -A-ii. Fig. 24 (left). â The chondriome in Myxomycetes and the Plasmodiophoraceae. A, frag- ment of the Plasmodium of Physarum (original); B, spores of Fuligo septica (after Lewitsky) ; C, spores of Hemitrichia vesparum (after Cowdry) ; D, spores and zoospores of Fuligo septica (after Vonwiller) ; E, young Plasmodia of Plasmodiophora Brassicae (after Milovidov). Fig. 25 (right). â Allomyces arbiisculus. 1, elongated chondrioconts in the vegetative fila- ment. 2, 3, the chondrioconts grouped about the nuclei in
. The cytoplasm of the plant cell. Plant cells and tissues; Protoplasm. â 'â â \Zy D -A-ii. Fig. 24 (left). â The chondriome in Myxomycetes and the Plasmodiophoraceae. A, frag- ment of the Plasmodium of Physarum (original); B, spores of Fuligo septica (after Lewitsky) ; C, spores of Hemitrichia vesparum (after Cowdry) ; D, spores and zoospores of Fuligo septica (after Vonwiller) ; E, young Plasmodia of Plasmodiophora Brassicae (after Milovidov). Fig. 25 (right). â Allomyces arbiisculus. 1, elongated chondrioconts in the vegetative fila- ment. 2, 3, the chondrioconts grouped about the nuclei in the gametangium. 4, mitochondria surrounding the spores as they are cut out. C, chondrioconts; , lipide granules colored brown with osmic acid; N, nucleus. Champy-KuU method. (After Hatch). in the ascus of Pustularia vesiculosa. It was here that they were studied for the first time in the fungi by us and then by JANSSENS and Helsmortel. They present a series of interesting phenomena. All of the ascogenous hyphae, those from which the asci will be formed, show a chondriome made up of numerous chondrioconts densely clustered about each nucleus. It is known that the ascus forms at the terminal portion of these hyphae. This terminal, recurved, crosier-like portion is occupied by a binucleate cell whose two nuclei divide simultaneously. Then two transverse walls form, marking off three cells, of which the middle one, that occupying the arch of the crosier, encloses two nuclei whereas the others, that at the extreme tip and that at the base, contain only a single nucleus. The middle binucleate cell destined to form the ascus, contains at first, around each of its two nuclei, a small mass made up of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Guilliermond, Alexandre, 1876-; Atkinson, Lenette May
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