Decomposing capacity of fungi commonly detected in Pinus sylvestris needle litter
Decomposing capacity of fungi commonly detected in Pinus sylvestris needle litter
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DOI：
10.1016/j.funeco.2010.09.002
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发表时间：
2011-02-01
期刊：
影响因子：
2.9
通讯作者：
Lindahl, Bjorn D.
中科院分区：
文献类型：
--
作者：
Boberg, Johanna B.;Ihrmark, Katarina;Lindahl, Bjorn D.
针叶凋落物真菌群落的主要组成部分是分类位置和生态学未知的真菌。在这里，从常见的系统发育类群中分离出的9株分离株进行了分解松针的能力测试。在一项长达1年的孵化研究中，测定了针叶质量损失以及纤维素和木质素含量的变化，并将其与两种已知具有分解针叶能力的担子菌（Marasmius androsaceus和Mycena epipterygia）造成的损失进行了比较。担子菌Clavulina/Sistotrema菌株具有纤维素降解能力，但不具有木质素降解能力。Chalara longipes和Helotiales中的其他三个菌株也分解纤维素但不分解木质素，而Mollisia cinerea（也是Helotiales）和两个dothideomycates - Sydowia polyspora和mytillinidion sp.似乎不能引起纤维素的显著质量损失。细纹木质素（Lophodermium pinastri, Rhytismatales）极易分解纤维素，也造成相当大的木质素损失。(C) 2010 Elsevier Ltd和英国真菌学学会。版权所有。
A major part of the fungal community in coniferous litter consists of fungi whose taxonomic position and ecology are unknown. Here, nine isolates from within commonly occurring phylogenetic groups were tested for their ability to decompose Pinus sylvestris needles. In a 1-yr long incubation study, needle mass loss as well as changes in cellulose and lignin content were determined and compared to those caused by two litter basidiomycetes (Marasmius androsaceus and Mycena epipterygia) with recognized ability to decompose needles. A basidiomycetous Clavulina/Sistotrema strain appeared to be cellulolytic but not ligninolytic. Chalara longipes and three other strains within Helotiales also decomposed cellulose but not lignin, whereas Mollisia cinerea (also Helotiales) and two Dothideomycetes - Sydowia polyspora and a Mytilinidion sp., seemed unable to cause significant mass loss of cellulose. Lophodermium pinastri (Rhytismatales) readily decomposed cellulose, and also caused considerable loss of lignin. (C) 2010 Elsevier Ltd and The British Mycological Society. All rights reserved.