. Agricultural botany, theoretical and practical. Botany, Economic; Botany. Fig. Z37A I. Section through piece of ' warty' tissue of potato showing thick-walled sporangia oiSynchytrium endobioticunu z. Sorus of three summer sporangia. In spring the outer coat of the sporocyst cracks and the motile zoospores are set free through the opening. They are able to swim about in drops of water, but after an hour or less they become amoeboid (Fig. 237B), and when brought in contact with the delicate tissue in the eye of a young tuber they penetrate into the interior of the cells, where they grow and fe
. Agricultural botany, theoretical and practical. Botany, Economic; Botany. Fig. Z37A I. Section through piece of ' warty' tissue of potato showing thick-walled sporangia oiSynchytrium endobioticunu z. Sorus of three summer sporangia. In spring the outer coat of the sporocyst cracks and the motile zoospores are set free through the opening. They are able to swim about in drops of water, but after an hour or less they become amoeboid (Fig. 237B), and when brought in contact with the delicate tissue in the eye of a young tuber they penetrate into the interior of the cells, where they grow and feed upon the cell contents. The invaded cell for a time grows in size with increasing growth of the parasite, but is finally destroyed and the material within it largely consumed. The surrounding cells are stimulated; rapid division and growth occurs among them, and a wart is soon 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 Percival, John, 1863-1949. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1910
