. Botany for agricultural students . Botany. SOME MYXOMYCETES OF ECONOMIC IMPORTANCE 339 After the spores are mature, the wall of the sporangium breaks open and the spores are scattered far and near by wind, animals, and other agencies. When the spores fall on a suitable object and conditions are right, the protoplasm breaks out of the heavy- wall and either grows directly into a new Plasmodium, or pro- duces cilia, swims about, and multiplies like the simple one-celled forms of animals {Fig. 291), the Plasmodium being formed later by the fusion of these animal-like bodies. Some Myxomycetes of
. Botany for agricultural students . Botany. SOME MYXOMYCETES OF ECONOMIC IMPORTANCE 339 After the spores are mature, the wall of the sporangium breaks open and the spores are scattered far and near by wind, animals, and other agencies. When the spores fall on a suitable object and conditions are right, the protoplasm breaks out of the heavy- wall and either grows directly into a new Plasmodium, or pro- duces cilia, swims about, and multiplies like the simple one-celled forms of animals {Fig. 291), the Plasmodium being formed later by the fusion of these animal-like bodies. Some Myxomycetes of Economic Importance Most of the Myxomycetes are saprophytes and consequently the group is not so important economically as the Bacteria and Fungi. Of course the saprophytic forms are of some importance. Fig. 292. — Cabbage plants attacked by the Club Root Myxomycete (Plasniodiophora Brassicae) which causes wart-like distortions. From Woronin. because they disintegrate organic matter and make it soluble, so that it can soak into the soil and be used by higher plants. There are, however, a few parasitic forms which attack some of our useful plants and cause considerable trouble and 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 Martin, John N. (John Nathan), b. 1875. New York : John Wiley & Sons, Inc.
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