PDF(Pubmed)
Abstract：
The CO2 emission activity of xylotrophic fungi responding to an increase in temperature in the range of 10-30 °C with pure dikaryotic cultures of Fomes fomentarius s. str., F. inzengae, Fomitopsis betulina, F. pinicola, and Phellinus igniarius was analyzed. Emission activity was assessed by the difference in CO2 concentration in 0.5 L exposure chambers with Petri dishes with mycelium growing on agar at the beginning of exposure and an hour later using a Gasmet DX-4030 FTIR spectrometer (Gasmet Technologies Oy, Finland), error measurements ±50 ppm. Specific (μg CO2/cm2/h) and total (μg CO2/h) emission activity and its relationship with temperature and size (area) of the mycelium were assessed. It is shown that in the range of 10-30 °C, the specific and total CO2 emission activity of the mycelium is closely and positively related to temperature. Specific emission, which is an indicator of the respiratory activity of the mycelium, does not depend on its size; its only driver is temperature, the relationship with which is linear: an increase in temperature by 10 °C causes an increase in the specific emission activity of the mycelium by 1.7 times. The total CO2 emission activity, which is an indicator of the total amount of CO2 emitted, is directly proportional to the specific emission activity and the size of the mycelium. In the range of 10-30 °C, an increase in temperature causes an almost equal increase in both the specific emission activity of the mycelium (Q10 1.7) and its growth (Q10 1.5) and causes an exponential increase in the total emission of CO2. This must be taken into account when predicting CO2 emissions from woody debris under climate change, as it could potentially contribute to accelerating climate change.
摘要：
使用Fomesfomentariuss的纯原核培养物，对10-30°C范围内温度升高的木养真菌的CO2排放活性。str。,F.inzengae,桦树,F.pinicola,并对Phellinusigniarius进行了分析。在暴露开始时和一小时后，使用GasmetDX-4030FTIR光谱仪（GasmetTechnologiesOy，芬兰),误差测量±50ppm。评估了特定的（μgCO2/cm2/h）和总的（μgCO2/h）排放活性及其与温度和菌丝体大小（面积）的关系。结果表明，在10-30°C的范围内，菌丝体的特定和总CO2排放活性与温度密切相关。特定排放,这是菌丝体呼吸活动的指标，不取决于它的大小；它唯一的驱动因素是温度，与之呈线性关系：温度升高10°C会导致菌丝体的比发射活性增加1.7倍。总CO2排放活动，这是二氧化碳排放总量的指标，与比发射活性和菌丝体的大小成正比。在10-30°C的范围内，温度的升高导致菌丝体的比排放活性（Q101.7）和其生长（Q101.5）几乎相等的增加，并导致CO2的总排放量呈指数增加。在预测气候变化下木屑的二氧化碳排放量时，必须考虑到这一点，因为它可能会加速气候变化。
