Fungal endophytes in dicotyledonous neotropical trees: patterns of abundance and diversity

被引:197
作者
Arnold, AE [1 ]
Maynard, Z
Gilbert, GS
机构
[1] Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 USA
[2] Smithsonian Trop Res Inst, Balboa, Panama
[3] Univ Calif Santa Cruz, Dept Environm Studies, Santa Cruz, CA 95064 USA
来源
MYCOLOGICAL RESEARCH | 2001年 / 105卷
关键词
D O I
10.1017/S0953756201004956
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Fungal endophytes have been found in every plant species examined to date and appear to be important, but largely unquantified, components of fungal biodiversity. Endophytes are especially little known in tropical forest trees, where their abundance and diversity are thought to be greatest. Here, we explore the occurrence of endophytes in a broad diversity of woody, angiospermous taxa in a lowland, moist tropical forest in central Panama. We use similarity indices to assess host preference and spatial heterogeneity of endophytes associated with two co-occurring but distantly related, understorey tree species in two sites of that forest, and assess the utility of indices based on frequencies of morphospecies occurrence (Morisita-Horn index) and on presence-absence data (Sorensen's index). We suggest that our understanding of fungal diversity will be enhanced by exploring ecological patterns underlying endophyte occurrence in host species, and discuss methods for assessing the proportion of fungal biodiversity represented by tropical endophytes.
引用
收藏
页码:1502 / 1507
页数:6
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