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首页> 外文期刊>Mycorrhiza >Mycorrhizal associations of the exotic hickory trees, Carya laciniosa and Carya cordiformis, grown in Kornik Arboretum in Poland
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Mycorrhizal associations of the exotic hickory trees, Carya laciniosa and Carya cordiformis, grown in Kornik Arboretum in Poland

机译：异国情调的山核桃树，Carya Laciniosa和Carya Cordiformis的菌根联想，在波兰的Kornik植物园种植

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摘要

We studied mycorrhizal associations of North American Carya laciniosa and Carya cordiformis trees, successfully acclimated to local habitat conditions of the historic Kornik Arboretum in Poland, in order to better understand mycorrhizal host range extensions in new environments. The root systems of Carya seedlings (1-3years old), regenerated under a canopy of mature hickory trees, were analyzed using microscopic, morphological, and molecular techniques. Our results, for the first time, indicate that C. laciniosa and C. cordiformis have both arbuscular and ectomycorrhizal associations. In the cleared and stained roots of both Carya species, typical structures of arbuscular mycorrhizae (vesicles, arbuscules, hyphal coils, and intercellular nonseptate hyphae) were detected. On the basis of ITS rDNA sequencing, 40 ectomycorrhizal fungal taxa were revealed, with 25 on C. laciniosa and 19 on C. cordiformis. Only four fungal species (Cenococcum geophilum sensu lato, Russula recondita, Xerocomellus cisalpinus, Humaria hemisphaerica) were shared by both Carya species. The high number of infrequent fungal taxa found, as well as the calculated richness estimator, indicates that the real ectomycorrhizal community of C. laciniosa and C. cordiformis is probably richer. The ability of the exotic Carya species to form arbuscular and ectomycorrhizal linkages with native fungi could be a factor in the successful establishment of these tree species under the conditions of Kornik Arboretum.
机译：我们研究了北美Carya Laciniosa和Carya Cordiformis树的菌根协会，成功地适应了波兰历史悠久的Kornik植物园的地方栖息地条件，以便更好地了解新环境中的菌根主机范围扩展。使用微观，形态学和分子技术分析在成熟山脉树冠下再生的Carya幼苗（1-3岁）的根系。我们的结果首次表明C. Laciniosa和C.Corciformis具有丛丛和厄根癌协会。在Carya物种的清除和染色的根系中，检测丛骨髓菌根（囊泡，枝块，螯合线圈和细胞间非生植物菌丝）的典型结构。在其RDNA测序的基础上，揭示了40个突出的真菌毒征，C. Laciniosa和19 on C. Cordiformis。只有四种真菌物种（Cenococcum Geophilum Sensu Lato，Russula Regondita，Xerocomellus cisalpinus，Humaria hemisphaerica）被凯里亚物种共享。发现的大量不常见的真菌分类群以及计算的丰富性估算器表明，C. Laciniosa和C.Corciformis的真正癌症群落可能更丰富。异国情调的Carya物种与土着真菌形成丛枝和颈肠癌的能力可能是在Kornik植物园条件下成功建立这些树种的因素。

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