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LABORATORY CULTIVATION OF CLASTODERMA DEBARYANUM
Author(s) -
McManus Mary Annunciata
Publication year - 1961
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1961.tb11726.x
Subject(s) - biology , sporangium , columella , zygote , polyembryony , spore , botany , anatomy , microbiology and biotechnology , embryo , embryogenesis , nose
M c M anus , S ister M ary A nnunciata , R.S.M. (Mount Mercy Coll., Cedar Rapids, Iowa.) Laboratory cultivation of Clastoderma debaryanum. Amer. Jour. Bot. 48(10): 884–888. Illus. 1961.— Clastoderma debaryanum has been cultivated on laboratory media for the first time and its life cycle studied. Spores germinate to produce a single protoplast which may remain a myxamoeba or may become a swarm cell. The swarm cells fuse in pairs to form a zygote, which grows into a microscopic, spherical plasmodium. The plasmodium never develops a network of veins and shows only irregular streaming. At maturity each plasmodium gives rise to 1 sporangium. There is always a sphere of gelatinous material about 4/5 the distance up the stalk, which appears late in the development of the sporangium, and which dries to become a wrinkled enlargement. The peridium dehisces early, leaving only a few plates attached to some of the peripheral tips of the capillitial twigs, and a peridial collar. The solid capillitium branches from the tip of a very short columella.