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ships at winter
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Ships At Winter

Freezing living organisms
Many living organisms are able to tolerate prolonged periods time at temperatures below the freezing point water. Most living organisms accumulate cryoprotectants such as anti-nucleating proteins, polyols, and glucose to protect themselves against frost damage by sharp ice crystals. Most plants, in particular, can safely reach temperatures −4 °C to −12 °C. Certain bacteria, notably Pseudomonas syringae, produce specialized proteins that serve as potent ice nucleators, which they use to force ice formation on the surface various fruits and plants at about −2 °C. The freezing causes injuries in the epithelia and makes the nutrients in the underlying plant tissues available to the bacteria.

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Album name:Transport
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Keywords:#ships #winter
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Date added:Oct 14, 2010
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