Effect of cyanobacterial growth on biotite surfaces under laboratory nutrient-limited conditions

被引:6
|
作者
Kapitulcinova, D. [1 ,3 ]
Cockell, C. S. [2 ]
Hallam, K. R. [3 ]
Ragnarsdottir, K. V. [1 ]
机构
[1] Univ Bristol, Dept Earth Sci, Bristol BS8 1RJ, Avon, England
[2] Open Univ, CEPSAR, Milton Keynes MK7 6AA, Bucks, England
[3] Univ Bristol, Interface Anal Ctr, Bristol BS2 8BS, Avon, England
基金
英国科学技术设施理事会;
关键词
D O I
10.1180/minmag.2008.072.1.71
中图分类号
P57 [矿物学];
学科分类号
070901 ;
摘要
Laboratory experiments with two cyanobacterial strains grown on low-nutrient agar media in the presence of biotite flakes were performed in order to reveal possible mechanisms and rates of cyanobacterial bioweathering. Both cyanobacteria colonized the biotite flakes. Leptolyngbya grew mostly in the biotite interlayers, whereas Hassallia colonized the sides and the topmost surface of the biotite flakes. After a 3-month incubation, rounded features including cyanobacterium-shaped pits were observed on the biotite surface cleared of the organic material. No such features were observed on flakes incubated for 1 month.
引用
收藏
页码:71 / 75
页数:5
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