Phytochemistry - Heat-stable antifreeze protein from grass
Phytochemistry - Heat-stable antifreeze protein from grass
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DOI：
10.1038/35018639
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发表时间：
2000-07-20
期刊：
影响因子：
64.8
通讯作者：
Lillford, P
中科院分区：
文献类型：
--
作者：
Sidebottom, C;Buckley, S;Lillford, P
我们在越冬的多年生黑麦草黑麦草中发现了一种抗冻蛋白。该蛋白质在 100 °C 下稳定，尽管它的防冻效果不如南极鱼类和昆虫中的蛋白质，但它能更好地防止冰重结晶。这种特性使草能够耐受其组织中的冰形成而不会受到损害，这表明控制冰晶生长而不是防止冻结可能已经进化成为它们在极低温度下生存的关键因素。
We have discovered an antifreeze protein in an overwintering perennial ryegrass,Lolium perenne. The protein is stable at 100 °C and although it is a less effective antifreeze than proteins found in antarctic fish and insects, it is better at preventing ice recrystallization. This property enables grasses to tolerate ice formation in their tissues without being damaged, suggesting that the control of ice-crystal growth rather than the prevention of freezing may have evolved to be the critical factor in their survival at very low temperatures.