Investigation of growth responses in saprophytic fungi to charred biomass
Investigation of growth responses in saprophytic fungi to charred biomass
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DOI：
10.1080/10256010903388436
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发表时间：
2010-01-01
影响因子：
1.3
通讯作者：
Bird, Michael I.
中科院分区：
文献类型：
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作者：
Ascough, Philippa L.;Sturrock, Craig J.;Bird, Michael I.
我们提出了一项研究结果，测试了两种腐生白腐真菌，Pleurotus pulmonarius和Coriolus versicolor对烧焦生物质（木炭）作为生长基质的反应。我们使用光学显微镜，扫描电子显微镜，元素丰度测量和同位素比值质谱（13C和15N）的组合来研究对照和孵育的苏格兰松（Pinus sylvestris）木材样品的真菌定植，以及在300℃和400℃下生产的同一物种的木炭。两种真菌在不到70天的时间内定植木材和木炭的表面和内部。然而，木炭基质的外部和内部生长形式明显不同，菌丝渗透集中在结构薄弱的方向。尽管真菌能够降解和代谢松木，但至少在本研究中使用的条件下，木炭并不能形成真菌营养物质的现成来源。
We present the results of a study testing the response of two saprophytic white-rot fungi species, Pleurotus pulmonarius and Coriolus versicolor, to charred biomass (charcoal) as a growth substrate. We used a combination of optical microscopy, scanning electron microscopy, elemental abundance measurements, and isotope ratio mass spectrometry (13C and 15N) to investigate fungal colonisation of control and incubated samples of Scots Pine (Pinus sylvestris) wood, and charcoal from the same species produced at 300 degrees C and 400 degrees C. Both species of fungi colonise the surface and interior of wood and charcoals over time periods of less than 70 days; however, distinctly different growth forms are evident between the exterior and interior of the charcoal substrate, with hyphal penetration concentrated along lines of structural weakness. Although the fungi were able to degrade and metabolise the pine wood, charcoal does not form a readily available source of fungal nutrients at least for these species under the conditions used in this study.