Albrecht von Haller Institut für Pflanzenwissenschaften, Abt. Systematische Botanik, Georg-August-Universität Göttingen, Göttingen, Germany.
Plant Biol (Stuttg). 2010 Sep 1;12(5):788-93. doi: 10.1111/j.1438-8677.2009.00270.x.
The colonisation of land by plants may not have been possible without mycorrhizae, which supply the majority of land plants with nutrients, water and other benefits. In this sense, the mycorrhization of basal groups of land plants such as ferns and lycophytes is of particular interest, yet only about 9% of fern and lycophyte species have been sampled for their mycorrhization status, and no community-level analyses exist for tropical fern communities. In the present study, we screened 170 specimens of ferns and lycophytes from Malaysia and Sulawesi (Indonesia), representing 126 species, and report the mycorrhization status for 109 species and 19 genera for the first time. Mycorrhizal colonisations were detected in 96 (56.5%) of the specimens, 85 of which corresponded to arbuscular mycorrhizae (AMF), three to dark-septate endophytes (DSE) and four to mixed colonisations (AMF + DSE). DSE colonisations were lower than in comparable samples of ferns from the Andes, suggesting a geographical or taxonomic pattern in this type of colonisation. Epiphytes had significantly lower levels of colonisation (26.1%) than terrestrial plants (70.7%), probably due to the difficulty of establishment of mycorrhizal fungi in the canopy habitat.
如果没有菌根真菌，植物对土地的殖民可能是不可能的，因为菌根真菌为大多数陆地植物提供营养、水和其他好处。在这个意义上，蕨类植物和石松类植物等陆地植物的基础类群的菌根化特别有趣，然而，只有大约 9%的蕨类植物和石松类植物的菌根化状态被采样，并且没有关于热带蕨类植物群落的群落水平分析。在本研究中，我们从马来西亚和苏拉威西（印度尼西亚）筛选了 170 份蕨类植物和石松类植物标本，代表 126 种，首次报道了 109 种和 19 属的菌根化状态。在 96 份（56.5%）标本中检测到菌根定植，其中 85 份对应于丛枝菌根真菌（AMF），3 份对应于暗隔内生真菌（DSE），4 份对应于混合定植（AMF+DSE）。DSE 定植率低于安第斯山脉类似的蕨类植物样本，表明这种定植类型在地理或分类上存在模式。附生植物的定植率（26.1%）明显低于陆生植物（70.7%），这可能是由于菌根真菌在树冠生境中难以建立。
