Inoculum volume effects on competitive outcome and wood decay rate of brown- and white-rot basidiomycetes
Inoculum volume effects on competitive outcome and wood decay rate of brown- and white-rot basidiomycetes
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DOI：
10.1016/j.funeco.2020.100938
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发表时间：
2020-06-01
期刊：
影响因子：
2.9
通讯作者：
Boddy, Lynne
中科院分区：
文献类型：
--
作者：
Fukasawa, Yu;Gilmartin, Emma C.;Boddy, Lynne
理论预测，真菌菌丝体之间竞争的能量成本可能会加速或延缓木材分解的速度，具体取决于各种因素。为了评估占领领土对木材腐烂率和竞争结果的影响，我们使用被三种褐腐担子菌和三种白腐担子菌定植的山毛榉木块进行了配对竞争实验。执行了所有白棕色组合（总共九种）和五种木材体积比（4:0、3:1、2:2、1:3、0:4）。配对在20摄氏度的黑暗中培育3个月，然后确定比赛结果和木材重量损失。占据较大领土的菌丝体比占据较小领土的菌丝体更具竞争力。木材体积和木材重量损失百分比之间存在负相关关系。在某些情况下，比赛前部的木材腐烂速度比木块后部的木材腐烂速度慢。这些结果表明，木材体积（领土大小）影响担子菌群落的竞争结果和木材腐烂率。 (C) 2020 Elsevier Ltd 和英国真菌学会。版权所有。
Theory predicts that the energetic cost of competition between fungal mycelia might accelerate or retard the rate of wood decomposition, depending on various factors. To evaluate the effect of occupied territory on wood decay rate and competitive outcome, we set up a pairing competition experiment using beech wood blocks colonised by three brown-rot and three white-rot basidiomycetes. All white-brown combinations (totalling nine), and five ratios of wood volume (4:0, 3:1, 2:2,1:3, 0:4) were performed. Pairings were incubated in the dark at 20 degrees C for 3 months, and then competition outcome and wood weight loss were determined. Mycelia occupying larger territory were more competitive than mycelia occupying smaller territory. There were negative relationships between wood volume and percentage wood weight loss. Wood decay was slower at the competition front than at the rear of the wood blocks in some cases. These results suggest that wood volume (territory size) affects both competition outcome and wood decay rate in basidiomycete communities. (C) 2020 Elsevier Ltd and British Mycological Society. All rights reserved.