Differential spread of discoloured and non-conductive sapwood among four Fagaceae species inoculated with Raffaelea quercivora
Differential spread of discoloured and non-conductive sapwood among four Fagaceae species inoculated with Raffaelea quercivora
复制标题
DOI：
10.1111/j.1439-0329.2009.00577.x
复制
发表时间：
2009-06-01
期刊：
影响因子：
1.4
通讯作者：
Ito, S.
中科院分区：
文献类型：
--
作者：
Murata, M.;Matsuda, Y.;Ito, S.
为了揭示壳壳科植物对Raffaelea quercivora Kubono et Shin-Ito的敏感性与物种间变色不导电边缘材切向扩展的关系，我们将3种栎属植物和1种栲属植物的树枝接种该真菌。在变色前，四种接种孔周围的边材都对侵染产生了不导电反应。不导电边材区域的膨胀在接种后2周内停止。针叶栎和锯齿栎的非导电边材面积大于青叶栎和三叶蝉。这些结果表明，不导电边材的区域在被黑桫椤感染后迅速扩大。结果表明，壳斗科植物的横向不导电边材与槲皮栎的易感性密切相关。
To reveal the relationship between the susceptibility of Fagaceae species to Raffaelea quercivora Kubono et Shin-Ito and the tangential expansion of regions of discoloured and non-conductive sapwood among the species, we inoculated branches of three Quercus species and one Castanopsis species with the fungus. The sapwood around the inoculation hole in all four species became non-conductive in response to the infection before the discolouration. The expansion of the region of non-conductive sapwood ceased within 2 weeks after the inoculation. The region of non-conductive sapwood in Q. crispula and Q. serrata was larger than that in Q. glauca and C. cuspidata var. sieboldii. These results suggest that the region of non-conductive sapwood expanded soon after the infection by R. quercivora. It was also clear that the transverse non-conductive sapwood has close relationship with the susceptibility among Fagaceae species to R. quercivora.