. Comparative morphology of Fungi. Fungi. Fig. 398.— Ustilago Vaillantii. 1 to 6. (X 1,300.) Ustilago longissima, var. macrospora 7 to 11. Germination of smut spores (X 1,100). (After Paravicini, 1917, and Bauch, 1923.) grow further. Their fate is unknown. On germination in nutritive solutions the germ tube remains very short and cuts off one or more sprout cells which generally fall away (Fig. 398, 2 to 4). The nucleus divides in three and forms two septa. The three-celled sprout mycelium cuts off at its septa further sprout cells which again become three-celled, etc. In older cultures, copul
. Comparative morphology of Fungi. Fungi. Fig. 398.— Ustilago Vaillantii. 1 to 6. (X 1,300.) Ustilago longissima, var. macrospora 7 to 11. Germination of smut spores (X 1,100). (After Paravicini, 1917, and Bauch, 1923.) grow further. Their fate is unknown. On germination in nutritive solutions the germ tube remains very short and cuts off one or more sprout cells which generally fall away (Fig. 398, 2 to 4). The nucleus divides in three and forms two septa. The three-celled sprout mycelium cuts off at its septa further sprout cells which again become three-celled, etc. In older cultures, copulation takes place (Fig. 398, 5 and 6) either by copulation tubes or between different sprouts or by partial and temporary solution of the wall between two cells of the same sprout. The binucleate cells develop to slender hyphae (Paravicini, 1917). In U. longissima the germ tube develops to a multicellular, uninucleate mycelium which is easily broken up and proceeds to sprouting. The sprouts are again. 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 Gäumann, Ernst Albert, 1893-1963; Dodge, Carroll William, 1895-. New York [etc. ] McGraw-Hill Book Company, Inc.
Size: 1797px × 1391px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublishern, booksubjectfungi
