INTERACTIONS BETWEEN CYLINDROCARPON-DESTRUCTANS AND ECTOMYCORRHIZAS OF PICEA-ABIES WITH LACCARIA-LACCATA AND PAXILLUS-INVOLUTUS
INTERACTIONS BETWEEN CYLINDROCARPON-DESTRUCTANS AND ECTOMYCORRHIZAS OF PICEA-ABIES WITH LACCARIA-LACCATA AND PAXILLUS-INVOLUTUS
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DOI：
10.1007/bf00226585
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发表时间：
1992-05-01
影响因子：
2.3
通讯作者：
OBERWINKLER, F
中科院分区：
文献类型：
--
作者：
BUSCOT, F;WEBER, G;OBERWINKLER, F
在与两种菌根真菌的配对培养中，根病原菌Drocarpon destructans（Zinsm.）Scholten对紫胶蚧菌丝生长有抑制作用。不包括法国）Bk.& Br.而卷状桩孢Paxillusinvolutus（Batsch.）相似的病原体共生体相互作用计划中观察到的三纯培养与云杉喀斯特。幼苗，但仅在附近的菌根根尖。两种菌根都能提高植物对C. destructans。这表明，直接的病原体共生体的相互作用是一个重要的因素，在菌根的人口动态。此外，植物内源抗性是有效防御病原真菌的关键因素之一。
In paired cultures with two mycorrhizal fungi, the root pathogen Cylindrocarpon destructans (Zinsm.) Scholten had an inhibitional effect on mycelial growth of Laccaria laccata (Scop. ex Fr.) Bk. & Br. but was inhibited itself by Paxillus involutus (Batsch.) Fr. A similar pathogen-symbiont interaction scheme was observed in triaxenic cultures with Picea abies Karst. seedlings but only in the vicinity of the mycorrhizal root tips. Both mycorrhizas similarly increased the endogenous plant resistance against the infection of C. destructans. This suggests that direct pathogen-symbiont interactions are an important factor for population dynamics in the mycorrhizosphere. Moreover, endogenous plant resistance constitutes one of the key factors for an effective defence against pathogenic fungi.