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首页> 外文期刊>Ботанический журнал >The structure of ectomycorrhizas in the genus Dryas (Rosaceae) from different habitats.
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The structure of ectomycorrhizas in the genus Dryas (Rosaceae) from different habitats.

机译：来自不同栖息地的Dryas（Rosaceae）中Ectomycorrhizas的结构。

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摘要

Mycorrhizal root systems of D. octopetala were collected from wild populations on the Kola Peninsula (Russia) and Austrian Alps and D. punctata roots from the Chukchi Peninsula. Examination by electron microscopy revealed that the roots of all investigated plants were characterized by the development of ectomycorrhizae. The mycorrhizae were characterized by morphological alterations to the root. Short, swollen roots were covered by a fungal mantle from which the Hartig net originated. The Hartig net developed between rhizodermal and cortical cells. In all investigated roots, irrespective of location, fungal symbionts representing both Basidiomycetes and Ascomycetes were found. In the ascomycetous mycorrhizae, the inner layer of hyphae was cementedby electron-dense material. In the basidiomycetous mycorrhizae, the cementing material was electron transparent. Melanin formed a consistent part of a dense material in ascomycetous mycorrhiza. Mycorrhizae were thicker in roots from the Chukchi Peninsula. The ecological significance of Dryas ectomycorrhiza is discussed.
机译：D. octopetala的菌根根系是从康拉半岛（俄罗斯）和奥地利阿尔卑斯山的野生种群和奥地利阿尔卑斯山的野生群体。通过电子显微镜检查显示，所有研究植物的根源的特征在于Ecectomycorrhizae的发育。菌根的特征在于对根的形态改变。短暂的，肿胀的根源被哈格净起源于哈格净的真菌地幔覆盖。 Hartig网在根瘤菌和皮质细胞之间形成。在所有调查的根部中，无论位置如何，都会发现代表碱性肌细胞和ascometes的真菌共生。在缺血性菌根中，菌丝的内层是胶合的电子 - 密集的材料。在基础肌菌疹中，胶结材料是电子透明的。黑色素在缺乏染色体菌疹中形成了一致的致密材料部分。 Chukchi半岛的根部含有肌肉菌浓稠。讨论了Dryase Eccycorrhiza的生态意义。

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