In vitro synthesis of ectomycorrhizas on Casuarinaceae with a range of mycorrhizal fungi.
In vitro synthesis of ectomycorrhizas on Casuarinaceae with a range of mycorrhizal fungi.
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木麻黄科外生菌根与一系列菌根真菌的体外合成。
DOI：
10.1111/j.1469-8137.1991.tb00978.x
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
P. Reddell
中科院分区：
文献类型：
--
作者：
C. Theodorou;P. Reddell
11种菌根真菌，分别取自桉树(Eucalyptus spp.)、侧柏(Allocasuarina spp.)或辐射松(Pinus Radiata D.Don)在无菌培养条件下，用斜纹夜蛾Allocasuarina littoraris(Salisb.)L.Johnson、木麻黄Casuarina equisstefolia SSP.Equiselifolia L.和C.cunninghamiana MIQ.Elaphamyces sp.，Hysterangium sp.，Laccaria laccata(Scop ex Fr.)BK。&Br.Pisolitus tinctorius(Pers.)Coker&Couch，硬皮病Screderma sp.和Thelephora terrestris(Ehrh.)佛尔在三种寄主上都形成了外生菌根。鹅膏菌Amanita sp.在山毛委陵菜和狗牙根上形成外生菌根，而在木麻黄上不形成外生菌根。卷曲芽孢杆菌(Batch ex Fr.)佛尔仅在斜纹夜蛾上形成外生菌根。丁香也与黄曲霉形成外生菌根。黄花根霉(Rhizapogon luteolus Fr.)&Nord，颗粒猪乳杆菌(L.ex Fr.)Kuntze和胡椒S.piperatus(Bull ex Fr.)昆策木麻黄根际定植于木麻黄属植物根际，但不形成外生菌根。比较了丁香假单胞菌和紫胶假单胞菌对4种寄主的外生菌根侵染强度。感染强度从13%到70%不等，两种真菌的侵染强度大小顺序为：斜叶桉树；木贼；杉木。与无葡萄糖条件下相比，外源葡萄糖能更早甚至更早地诱导丁香和紫胶树对三种植物的外生菌根侵染。在该合成体系中，这些真菌和寄主的最适葡萄糖水平为750μg葡萄糖(g土壤)-1。
Eleven species of mycorrhizal fungi, selected from stands of either Eucalyptus spp., Allocasuarina spp. or Pinus radiata D. Don were tested in an aseptic system for their abilities to initiate ectomycorrhiza with Allocasuarina littoralis (Salisb.) L. Johnson, Casuarina equisetifolia ssp. equiselifolia L. and C. cunninghamiana Miq. Elaphamyces sp., Hysterangium sp., Laccaria laccata (Scop ex Fr.) Bk. & Br., Pisolithus tinctorius (Pers.) Coker & Couch, Scleroderma sp. and Thelephora terrestris (Ehrh.) Fr. formed ectomycorrhizas on all three hosts. Amanita sp. formed ectomycorrhizas on A. littoralis and C. cunninghamiana but not on C. equisetifolia. Paxillus involutus (Batch ex Fr.) Fr. formed ectomycorrhizas on A. littoralis only. P. tinctorius also formed ectomycorrhizas with C. obesa Miq. Rhizapogon luteolus Fr. & Nord, Suillus granulatus (L. ex Fr.) Kuntze and S. piperatus (Bull ex Fr.) O. Kuntze colonized the rhizosphere of Casuarinaceae but did not form ectomycorrhizas. The comparative intensity of ectomycorrhizal infection by P. tinctorius and L. laccata was assessed on four host species. Infection intensity ranged from 13 to 70%, of laterals infected and decreased for both fungal species in the order: A. littoralis > Eucalyptus pilularis Smith > C. equisetifolia > C. cunninghamiana. An exogenous supply of glucose induced greater and sometimes earlier, ectomycorrhizal infection of A. littoralis, C. equisetifolia and C. cunninghamiana by P. tinctorius and L. laccata than that in the absence of glucose. The optimum glucose level for these fungi and hosts in this synthesis system was 750 μg glucose (g soil)-1 .