Distribution of Ice Nucleation-Active (INA) Bacteria from Rain-water and Air
Distribution of Ice Nucleation-Active (INA) Bacteria from Rain-water and Air
复制标题
雨水和空气中冰核活性 (INA) 细菌的分布
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
D. Waturangi
中科院分区：
文献类型：
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作者：
Stéphanie;D. Waturangi
某些细菌，诱导生物冰核被怀疑在云中的凝结和冰核形成中发挥重要作用。这些细菌可以产生生物冰核素1，这是一种蛋白质，通常存在于叶片表面和空气中。大多数INA细菌的研究是在亚热带地区进行的。在这项研究中，INA细菌从2008年3月至5月期间从雅加达，博戈尔，贝卡西，丹格朗和Depok的雨水和空气中分离出来。雨水中冰核细菌含量分别为19.4%、18.7%、5.3%、2.2%和6.4%，空气中冰核细菌含量分别为9.5%、6.5%、0%、2.7%和1.8%。INA细菌的检出率最高的是雅加达的雨水和空气，其次是博戈尔。结果表明，不同地区雨水中冰核细菌的含量均高于空气中冰核细菌的含量。来自雅加达的分离物（分离物A32）具有最高的冰核活性，温度分类为-2.7 °C，与泛菌属100%相似。雨水和空气中INA细菌的存在可能在降雨诱导所需的核化过程中发挥重要作用。
Certain bacteria that induce biological ice nucleation are suspected to play an important role in condensation and ice nuclei formation in clouds. Those bacteria can produce biological ice nucleator1, which is a protein and usually found on leaf surface and air. Most studies on INA bacteria were conducted in subtropical areas. In this study, INA bacteria were isolated from rain-water and air between March to May 2008 from Jakarta, Bogor, Bekasi, Tangerang, and Depok. The percentage of INA bacteria from rainfall for those area are 19.4, 18.7, 5.3, 2.2, and 6.4% respectively, while percentage for air are 9.5, 6.5, 0, 2.7, and 1.8%. The highest incidence of INA bacteria were from rain-water and air found in sample from Jakarta and then followed by the samples from Bogor. It was shown that the percentage of INA bacteria from rain-water was higher than air for all of the samples from different areas. The isolate from Jakarta (isolate A32) which had the highest activity for ice nucleation, with the temperature classification at −2.7 °C, revealed 100% similarity with Pantoea sp. The presence of INA bacteria in rain-water and air might play an important role in nucleation process which is required for rainfall induction.