On the Physics And Physiology of Protoplasmic Streaming in Plants
The book On the Physics And Physiology of Protoplasmic Streaming in Plants was written by author Alfred James Ewart Here you can read free online of On the Physics And Physiology of Protoplasmic Streaming in Plants book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is On the Physics And Physiology of Protoplasmic Streaming in Plants a good or bad book?
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Xxiv, p. 173. 3 Jahrb. F. Wiss. Bot. , 1882, Bd. XII, pp. 326-44. * Ewart, Ann. Of Bot. , 1898, Vol. Xn, pp. 383-90. OTHER FORMS OF RADIANT ENERGY 71 an hour to two hours, even in a few cases in which it ultimately permanently ceases. Momentary exposure to darkness or bright light seems to have no influence on streaming, but if preparations kept in darkness for some time are suddenly exposed to concentrated sunlight, a temporary stoppage lasting for a few seconds to a minute, or in Chara and Ni...tella a local retardation, may often be seen. The latter is followed by a slight acceleration, after which the streaming rapidly decreases and ultimately ceases if the exposure is continued. If plants of Chara or Nitella are kept some days or weeks in darkness, streaming becomes very slow, or moderately slow if the water is well aerated. On exposure to bright diffuse light, streaming quickens within five minutes, and may be four or five times as rapid within a quarter to half an hour. Moore x concluded from similar observations on Chara vulgaris that light acted as a direct stimulus accelerating streaming.
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