Duong Hieu Linh, Paufler Sven, Harms Hauke, Schlosser Dietmar, Maskow Thomas
Department of Environmental Microbiology, Helmholtz Centre for Environmental Research-UFZ, Permoserstraβe 15, 04318 Leipzig, Germany.
Faculty of Engineering, Vietnamese-German University (VGU), Le Lai Street, Hoa Phu Ward, Thủ Dầu Một 7500, Binh Duong, Vietnam.
Microorganisms. 2022 Aug 19;10(8):1675. doi: 10.3390/microorganisms10081675.
In the present study, we investigated whether a non-invasive metabolic heat flux analysis could serve the determination of the functional traits in free-living saprotrophic decomposer fungi and aid the prediction of fungal influences on ecosystem processes. For this, seven fungi, including ascomycete, basidiomycete, and zygomycete species, were investigated in a standardised laboratory environment, employing wheat straw as a globally relevant lignocellulosic substrate. Our study demonstrates that biocalorimetry can be employed successfully to determine growth-related fungal activity parameters, such as apparent maximum growth rates (), cultivation times until the observable onset of fungal growth at (), quotients formed from the and (herein referred to as competitive growth potential, ), and heat yield coefficients (), the latter indicating the degree of resource investment into fungal biomass versus other functional attributes. These parameters seem suitable to link fungal potentials for biomass production to corresponding ecological strategies employed during resource utilisation, and therefore may be considered as fungal life history traits. A close connection exists between the and values, which suggests an interpretation that relates to fungal life history strategies.
在本研究中，我们调查了非侵入性代谢热通量分析是否可用于确定自由生活的腐生分解真菌的功能特性，并有助于预测真菌对生态系统过程的影响。为此，在标准化实验室环境中，以小麦秸秆作为全球相关的木质纤维素底物，对包括子囊菌、担子菌和接合菌在内的七种真菌进行了研究。我们的研究表明，生物量热测定法可成功用于确定与生长相关的真菌活性参数，如表观最大生长速率（）、在（）时观察到真菌生长开始的培养时间、由和形成的商（在此称为竞争生长潜力，）以及热产量系数（），后者表明资源投入到真菌生物量与其他功能属性的程度。这些参数似乎适合将真菌的生物量生产潜力与资源利用过程中采用的相应生态策略联系起来，因此可被视为真菌的生活史特征。和值之间存在密切联系，这表明与真菌生活史策略有关的一种解释。
