Bacterial growth in supercooled cloud droplets

被引：265

作者：

Sattler, B

Puxbaum, H

Psenner, R

机构：

[1] Univ Innsbruck, Inst Zool & Limnol, A-6020 Innsbruck, Austria

[2] Vienna Univ Technol, Inst Analyt Chem, A-1060 Vienna, Austria

来源：

GEOPHYSICAL RESEARCH LETTERS | 2001年 / 28卷 / 02期

关键词：

D O I：

10.1029/2000GL011684

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

It is well known that the atmosphere is a conveyor of microorganisms, and that bacteria can act as ice or cloud condensation nuclei, but clouds have not been considered as a site where organisms can live and reproduce. Here we show that bacteria in cloud droplets collected at high altitudes are actively growing and reproducing at temperatures at or below 0 degreesC. Since similar to 60% of the earth surface is covered by clouds, cloud water should be considered as a microbial habitat.

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页码：239 / 242

页数：4

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