. Botany for agricultural students. Plants. BACTERIA 343 forms and as a result of their activity various substances are produced, the accumuhition of which check their activity. Some forms, called anaerobic, get along better without air, while others, called aerobic, nuist have air. Their reproduction is accomplished l)y cell division, which is not so complex and takes place more rapidly than in the cells of. wmm ''lillr Fig. 296. — Bacillus sublilis, a Bacterium of decay. Above, the active form (X 1500); at the left, below, spore stage (X 800); at the right, below, the zoogloea stage (X 500).
. Botany for agricultural students. Plants. BACTERIA 343 forms and as a result of their activity various substances are produced, the accumuhition of which check their activity. Some forms, called anaerobic, get along better without air, while others, called aerobic, nuist have air. Their reproduction is accomplished l)y cell division, which is not so complex and takes place more rapidly than in the cells of. wmm ''lillr Fig. 296. — Bacillus sublilis, a Bacterium of decay. Above, the active form (X 1500); at the left, below, spore stage (X 800); at the right, below, the zoogloea stage (X 500). the higher plants. Cell division is so rapid that the progeny of one individual often runs into many millions in twenty-four hours. The new individuals may separate immediately after division is complete or cling together in filaments. Sometimes in shrinking the protoplasm and enclosing it in an inner heavy wall in preparation for the resting stage, the protoplasm divides and each separate mass of protoplasm forms a spore. Since each spore is an individual in a dormant protected state, the formation of more than one spore results in the multiplication of 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 ; London, Chapman & Hall
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplants, bookyear1919
