Pathogenicity of Colletotrichum dematium isolated from current-year beech seedlings exhibiting damping-off
Pathogenicity of Colletotrichum dematium isolated from current-year beech seedlings exhibiting damping-off
复制标题
当年发生立枯病的山毛榉苗木炭疽菌的致病性
DOI：
10.1111/j.1439-0329.1995.tb00329.x
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发表时间：
1995
期刊：
影响因子：
1.4
通讯作者：
T. Shoji
中科院分区：
文献类型：
--
作者：
N. Sahashi;T. Kubono;T. Shoji
概括
评估了Colletotrichum dematium作为引起当年山毛榉（Fagus crenata）幼苗出苗后猝倒病的病原体的致病性。接种C. dematium的当年山毛榉幼苗，无论是有伤接种还是无伤接种，均在20天内死亡，表明该真菌对当年幼苗具有致病性。
经常从在五个不同位点表现出立枯病的下胚轴中分离出 C. dematium。隔离发生率很高，并且不同地点和年份之间的差异很小。尽管检测发生率因地点和/或检测方法而异，但在所有检查的垫料样本中也检测到了 C. dematium。
这些结果有力地表明，C. dematium 在山毛榉再生早期阶段的幼苗快速死亡中发挥着重要作用。
Summary
The pathogenicity of Colletotrichum dematium was evaluated as the agent causing post-emergence damping-off of current-year beech (Fagus crenata) seedlings. Current-year beech seedlings inoculated with C. dematium died within 20 days after both wound and non-wound inoculation, indicating that this fungus is pathogenic to current-year seedlings.
C. dematium was frequently isolated from hypocotyls exhibiting damping-off at five different sites. The incidence of isolation was high and little variation occurred between sites and years. C. dematium was also detected in all litter samples examined although the incidence of detection differed depending on sites and/or detection methods.
These results strongly indicate that C. dematium plays an important role in rapid seedling death during the early stages of beech regeneration.