Species-rich but distinct arbuscular mycorrhizal communities in reforestation plots on degraded pastures and in neighboring pristine tropical mountain rain forest

被引：0

作者：

Haug, Ingeborg ^{[1
]}

Wubet, Tesfaye ^{[2
]}

Weiss, Michael ^{[1
]}

Aguirre, Nikolay ^{[3
]}

Weber, Michael ^{[4
]}

Guenter, Sven ^{[4
]}

Kottke, Ingrid ^{[1
]}

机构：

[1] Univ Tubingen, Inst Evolut & Ecol, D-72076 Tubingen, Germany

[2] UFZ Helmholtz Ctr Environm Res, Dept Soil Ecol, D-06120 Halle, Germany

[3] Univ Nacl Loja, Loja, Ecuador

[4] Tech Univ Munich, Dept Ecol, Inst Silviculture, D-85354 Freising Weihenstephan, Germany

来源：

TROPICAL ECOLOGY | 2010年 / 51卷 / 02期

关键词：

Cedrela montana; degraded pastures; Glomeromycota; Heliocarpus americanus; Juglans neotropica; neotropical mountain rain forest; reforestation; ribosomal 18S RNA gene; Setaria sphacelata; Tabebuia chrysantha; FUNGAL COMMUNITIES; ROOT-NODULES; SOIL; DIVERSITY; GLOMEROMYCOTA; REGENERATION; VEGETATION; PRIMERS; FIRE;

D O I：

暂无

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

For the first time in tropical mountain rain forest, arbuscular mycorrhizal fungal richness and community composition was investigated from planted seedlings of Cedrela montana, Heliocarpus americanus, Juglans neotropica and Tabebuia chrysantha in reforestation plots on degraded pastures. A segment of fungal 18S rDNA was sequenced from the mycorrhizas. Sequences were compared with those obtained from mycorrhizas of adult trees of 30 species in the neighboring, pristine tropical mountain rain forest. In total, 193 glomeromycotan sequences were analyzed, 130 of them previously unpublished. Members of Glomeraceae, Acaulosporaceae, Gigasporaceae and Archaeosporales were found in both habitats, with Glomus Group A sequences being by far the most diverse and abundant. Glomus Group A sequence type richness did not appear to differ between the habitats: a large number was observed in both. Glomus Group A sequence type composition, however, was found distinctly different. Seedlings were rarely colonized by fungi of the pristine forest but trapped a number of fungi known from other areas, which were rarely found in the pristine forest.

引用

页码：125 / 148

页数：24

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