摘要
本文研究了Boletus griseus Frost.(灰盖牛肝菌),Boletus sp.和Suillus grevillei (Klotz.) Sing. (厚环乳牛肝菌)3株菌根菌在纯培养条件下对温度、pH、盐浓度和水势等4个因子的生态适应性以及同油松和湿地松纯培养合成菌根的能力。结果表明,pH和盐浓度对菌根菌生长的影响比较小,而温度和水势则对真菌的生长具有很大的影响。其中B.sp.与S.grevillei具有很强的生态适应能力,而B.griseus则稍差。此外,结果还表明PEG4000可能会促进菌根菌在液体培养中的生长。在菌根纯培养合成研究中,共形成5种菌根,其中油松-B.griseus属新发现的外生菌根。5种菌根中,以油松-S.grevillei和湿地松-B.griseus较为理想。
Three ectomycorrhizal fungi, Boletus griseus, B. sp. and Suillus grevillei, were chosen to be studied on ecological adaptability to environmental factors, such as temperature, pH, salt concentration and water potential. Besides, the 3 fungi were used in pure culture synthesis of Pinus tabulaeformis and P. elliottii ectomycorrhizae.Generally, pH and salt concentration had slight effects on the growth of ectomycorrhizal fungi but temperature and water potential had strong effects in the ecological adaptability experiments using 3 fungi. B. sp. and S. grevillei displayed their strong adaptability in varied ecological conditions. In addition, it's evident that PEG-4000 can accelerate the growth of ectomycorrhizal fungi in liquid.In the pure culture synthesis, five ectomycorrhizae were formed, in which P. tabulaeformis - B. griseus were discovered for the first time. P. tabulaefor-mis - S. grevillei and P. elliottii - B. griseus are better ones of the 5 mycor-rhizae.
出处
《林业科学研究》
CSCD
北大核心
1989年第2期136-141,共6页
Forest Research
