Plants in Health And Disease, Being An Abstract of a Course of Lectures Delivered in the University of Manchester During the Session 1915/16
The book Plants in Health And Disease, Being An Abstract of a Course of Lectures Delivered in the University of Manchester During the Session 1915/16 was written by author F E Frederick Ernest Weiss Here you can read free online of Plants in Health And Disease, Being An Abstract of a Course of Lectures Delivered in the University of Manchester During the Session 1915/16 book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Plants in Health And Disease, Being An Abstract of a Course of Lectures Delivered in the University of Manchester During the Session 1915/16 a good or bad book?
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As the tissues further decay the filaments of the fungus spread out over the soil reaching across to other seedlings which then succumb in the same sort of way. The fungus attacks the cells of the seed- lings by first extracting water, then boring through the cell walls eind finally killing the living protoplasm and feeding upon the cell contents. Since the fungus grows very rapidly a seedling may be reduced to a putrid mass in a few hours. The life story of Pythium is typical of the most thoro...ugh and destructive of plant parasites. The fila- ments at first grow in the air spa.ces between the cells, but later they enter and kill the living protoplasm. The spread of the fungus at first is due to the growth over the soil from its earlier victims to healthy seedlings which are attacked in turn ; but soon a more rapid means of spreading comes into play. When a seedling has become thoroughly infected hy the filaments of the fungus the ends of many of the branches of the latter begin to swell out into globular bodies very like the spKjre-cases of Mucor, only much smaller.
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