. Minnesota plant diseases. Plant diseases. Fig. 99.—The bacteria of such root nodules of the pea family as are shown in Fig. 98. On the left of Vicia sativa (the .spring vetch), on the right of Medicago denti- culata. Very highly magnified. After At- kinson. of bacteria. A great many other phases of bacterial life are of importance in the arts and industries and only a few may be mentioned in this short review. In tan- ning, in diseases of wine and beer, rennet curdling, in the manifold processes of putri- faction of organic matter, in cheese industries, in the deposition of bog iron ore, the
. Minnesota plant diseases. Plant diseases. Fig. 99.—The bacteria of such root nodules of the pea family as are shown in Fig. 98. On the left of Vicia sativa (the .spring vetch), on the right of Medicago denti- culata. Very highly magnified. After At- kinson. of bacteria. A great many other phases of bacterial life are of importance in the arts and industries and only a few may be mentioned in this short review. In tan- ning, in diseases of wine and beer, rennet curdling, in the manifold processes of putri- faction of organic matter, in cheese industries, in the deposition of bog iron ore, the bacteria appear in important roles. More particularly are we here con- cerned with those forms which attack living plants and cause disease. Such plant diseases are not numerous but investiga- tion is steadily adding new examples and they promise to be- come of sufficient importance to make this brief general dis- cussion of this group of plants justifiable. The various bacte- rial diseases will be considered individually in subsequent chap- ters. (Figs. 96 to 99, 172 to 178, 195). Slime molds (Mycctosoa). This group of organisms is now commonly classified with the simplest animals, though they are very fungus-like in many of their characters. Most slime molds are true saprophytes but a few have adopted para- sitic habits. Some of the latter live in plants and others in ani- mal tissues. The slime molds produce spores in structures very similar to the fruiting bodies of many saprophytic fungi. These fruiting bodies are usually very small—many are of pin-head size but a few attain a diameter of six inches. The spores are. 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 Freeman, Edward Monroe, 1875-. Saint Paul, Minn.
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