Ectomycorrhizal sporocarp succession and production during early primary succession on Mount Fuji
Ectomycorrhizal sporocarp succession and production during early primary succession on Mount Fuji
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DOI：
10.1046/j.1469-8137.2003.00724.x
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发表时间：
2003-04-01
期刊：
影响因子：
9.4
通讯作者：
Hogetsu, T
中科院分区：
文献类型：
--
作者：
Nara, K;Nakaya, H;Hogetsu, T
在日本富士山植被覆盖度约为5%的火山荒漠上，通过2 a的每周调查，研究了原生演替早期外生菌根（ECM）子实体的种类组成、演替和生物量生产，特别是其发育阶段和伴生寄主的生长情况。结果表明，该试验共记录到23种共11 450个孢子果，其大小、光合作用、叶片氮磷含量等指标均较对照有显著性差异。它们几乎只与高山矮杨柳，柳reinii。两个蜡蚧属和一个Inocybe物种是第一个殖民者，随后的真菌物种被添加为主机的增长。没有证据表明任何真菌消失，被取代的演替系列的ECM真菌success.The生物量生产的ECM孢子果是非常大的，在一般情况下，和达19%的叶生物量在最具生产力的协会。每年ECM孢子果生产在个别ECM协会与相关主机的增长，特别是与光合速率，这似乎是由叶片N和P浓度的强烈相关。
The species composition, succession and biomass production of ectomycorrhizal (ECM) sporocarps were studied during early primary succession on Mount Fuji, Japan, with special reference to developmental stages and the growth of associated hosts.Weekly sporocarp surveys were conducted over 2 yr on a volcanic desert, where the total vegetation coverage was about 5%. We also quantified the growth of associated hosts in terms of size, photosynthesis, and leaf N and P concentration.A total of 11 450 sporocarps of 23 species were recorded. They were associated almost exclusively with an alpine dwarf willow, Salix reinii . Two Laccaria and one Inocybe species were the first colonizers; subsequent fungal species were added as the host grew. There was no evidence of any fungus disappearing and being replaced in the sere of ECM fungal succession.The biomass production of ECM sporocarps was exceptionally large, in general, and amounted to 19% of leaf biomass in the most productive associations. Annual ECM sporocarp production in individual ECM associations was strongly correlated with the growth of the associated host, especially with the photosynthetic rate, which appeared to be determined by leaf N and P concentration.