The effect of copper on the growth of wood-rotting fungi and a blue-stain fungus
详细信息 查看全文
- 作者：Yudith Guillén and ángela Machuca
- 关键词：Copper tolerance ; Blue ; stain fungus ; Brown ; rot fungi ; White ; rot fungi ; Wood ; rotting fungi
- 刊名：World Journal of Microbiology and Biotechnology
- 出版年：2008
- 出版时间：January, 2008
- 年：2008
- 卷：24
- 期：1
- 页码：31-37
- 全文大小：159.2 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Applied Microbiology
Biotechnology
Biochemistry
Environmental Biotechnology
Microbiology - 出版者：Springer Netherlands
- ISSN：1573-0972
文摘
The effect of copper (II) ions on the growth of three brown-rot fungi, six white-rot fungi and one blue-stain fungus in solid medium was evaluated. The fungi were grown in malt extract agar with different concentrations of copper added, and the radial growth rate was determined. At the end of the incubation period, the mycelial biomass and the media pH were determined. The white-rot and blue-stain fungus grew up to 3 mM and 6 mM copper, respectively and the brown-rot fungi were the only ones that grew up to 10 mM, with higher growth rates than those shown by the other fungi. In general, the brown-rot fungi produced greater acidification in the culture media than the white-rot fungi and blue-stain fungus, and the acidification increased when the amount of copper was increased. The biomass production for the different species, in the absence or presence of copper, was not related to the radial growth rate, and the fungal species that produced the greatest biomass amounts did not correspond to those that presented the highest growth rates. The brown-rot fungi Wolfiporia cocos and Laetiporus sulfureus and blue-stain fungus Ophiostoma sp. demonstrated greater tolerance to high copper concentrations in solid medium than the white-rot fungi, determined as radial growth rate. On the other hand, the highest biomass producers in solid medium with copper added were the white-rot fungi Ganoderma australe and Trametes versicolor and the brown-rot fungus Gloeophyllum trabeum.