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首页> 外文期刊>The Analyst >Characterization of mannitol in Curvularia protuberata hyphae by FTIR and Raman spectromicroscopy
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Characterization of mannitol in Curvularia protuberata hyphae by FTIR and Raman spectromicroscopy

机译：FTIR和拉曼光谱法鉴定曲霉菌丝中甘露醇的含量

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摘要

FTIR and Raman spectromicroscopy were used to characterize the composition of Curvularianprotuberata hyphae, and to compare a strain isolated from plants inhabiting geothermal soils withna non-geothermal isolate. Thermal IR source images of hyphae have been acquired with a 64 u0002 64nelement focal plane array detector; single point IR spectra have been obtained with synchrotron sourcenlight. In some C. protuberata hyphae, we have discovered the spectral signature of crystalline mannitol,na fungal polyol with complex protective roles. With FTIR-FPA imaging, we have determined that thenprotein content in cells remains fairly constant throughout the length of a hypha, whereas the mannitolnis found at discrete, irregular locations. This is the first direct observation of mannitol in intact fungalnhyphae. Since the concentration of mannitol in cells varies with respect to position and is not present innall hyphae, this discovery may be related to habitat adaptation, fungal structure and growth stages.
机译：FTIR和拉曼光谱用于表征曲霉菌丝的组成，并比较从居住于地热土壤的植物中分离出的菌株与非地热分离物。菌丝的热红外源图像已通过64 u0002 64元素焦平面阵列检测器获得；用synchrontron sourcenlight获得单点红外光谱。在某些C. protuberata菌丝中，我们发现了结晶甘露醇，一种具有复杂保护作用的真菌多元醇的光谱特征。通过FTIR-FPA成像，我们已经确定，在菌丝的整个长度内，细胞中的蛋白质含量保持相当恒定，而甘露醇则位于不连续的不规则位置。这是完整真菌真菌中甘露醇的首次直接观察。由于甘露醇在细胞中的浓度随位置而变化，并且在菌丝中不存在，因此这一发现可能与栖息地适应，真菌结构和生长阶段有关。

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    《The Analyst》 |2010年第12期|p.3249-3254|共6页
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    Merrill Isenor Susan G. W. Kaminskyj Russell J. Rodriguez Regina S. Redman and Kathleen M. Gough;

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    aDepartment of Chemistry, University of Manitoba, Winnipeg, Canada.E-mail: kmgough@cc.umanitoba.ca, Fax: +1 204-474-7608, Tel: +1204-474-6262bDepartment of Biology, University of Saskatchewan, Saskatoon, CanadacUS Geological Survey, Western Fisheries Research Center, Seattle, USAdDepartment of Biology, University of Washington, Seattle, USAeUniversity of Washington, School of Forestry, Seattle, USA† This article is part of a themed issue on Optical Diagnosis. This issueincludes work presented at SPEC 2010 Shedding Light on Disease:Optical Diagnosis for the New Millennium, which was held inManchester, UK, June 26th to July 1st 2010.,;

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