Archive image from page 93 of The cytoplasm of the plant. The cytoplasm of the plant cell cytoplasmofplant00guil Year: 1941 Guilliermond - Atkinson 78 Cytoplasm merits begin to form, except, however, in certain regions where they persist during the entire hfe of the cells. Do they represent an intermediate product from which starch and pigments are built up, or do they result from a breaking down of the lipoprotein com- plex which makes up the plastids (lipophanerosis) ? It is difficult to say. In any case, these granules reappear in large numbers in the plastids at the moment when the flower


Archive image from page 93 of The cytoplasm of the plant. The cytoplasm of the plant cell cytoplasmofplant00guil Year: 1941 Guilliermond - Atkinson 78 Cytoplasm merits begin to form, except, however, in certain regions where they persist during the entire hfe of the cells. Do they represent an intermediate product from which starch and pigments are built up, or do they result from a breaking down of the lipoprotein com- plex which makes up the plastids (lipophanerosis) ? It is difficult to say. In any case, these granules reappear in large numbers in the plastids at the moment when the flower begins to form. They are in this case products of disintegration of the plastids and mark the beginning of plastidial degeneration. The epidermal cells of perianth parts of the tulip are also par- ticularly favorable objects for observation of the living chondri- ome and in them it is possible to follow the formation within the chondrioconts of a yellow pigment, xanthophyll. In the white tulip, for example, the chondriome can be observed very clearly in a frag-


Size: 1121px × 1784px
Photo credit: © Actep Burstov / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1940, 1941, archive, atkinson_lenette_may_rogers_1899_, book, bookauthor, bookdecade, bookpublisher, booksponsor, booksubject, bookyear, drawing, guilliermond_alexandre_1876_, historical, history, illustration, image, mblwhoi_library, page, picture, plant_cells_and_tissues, print, protoplasm, reference, vintage, waltham_mass_chronica_botanica_company, zimmermann_a_albrecht_b_1860