Phyllosphere Fungi Diversity of a Native Species Desmodium spicatum and an Invasive Species Tithonia rotundifolia
Author(s): LI Wei, HE Shu-qiang
Pages: 10-16
Year: 2014 Issue: 1
Journal: Journal of West China Forestry Science
Keyword: Tithonia rotundifolia; Desmodium spicatum; invasive species; phyllosphere fungi diversity; Pu’ er;
Abstract: Through DNA extraction, PCR amplification and DNA sequencing , the conservative 18S rRNA se-quences of phyllosphere fungi from leaves of Tithonia rotundifolia and Desmodium spicatum were analyzed .The re-sults showed that both plant species shared some common fungi species from the subclass of Chaetothyriomycetes and Heterobasidiomycete , although fungi diversity found on the leaves of Desmodium spicatum was far less when this plant was near the invader plant Tithonia rotundifolia than away from it.Also, both plant species hosted some spe-cies-specific fungi species .In particular, invader Tithonia rotundifolia hosted Graphiola phoenicis, a notorious fungi species for its damage on plant growth and development , which might facilitate the invasion success of Tithonia ro-tundifolia by inhibiting native plants .Our results thus showed that phyllosphere fungi were diverse in both richness and function for invader plant Tithonia rotundifolia and native plant Desmodium spicatum, and future study should further explore the interactions between phyllosphere microbes and host plants as well as involving mechanisms .
Pages: 10-16
Year: 2014 Issue: 1
Journal: Journal of West China Forestry Science
Keyword: Tithonia rotundifolia; Desmodium spicatum; invasive species; phyllosphere fungi diversity; Pu’ er;
Abstract: Through DNA extraction, PCR amplification and DNA sequencing , the conservative 18S rRNA se-quences of phyllosphere fungi from leaves of Tithonia rotundifolia and Desmodium spicatum were analyzed .The re-sults showed that both plant species shared some common fungi species from the subclass of Chaetothyriomycetes and Heterobasidiomycete , although fungi diversity found on the leaves of Desmodium spicatum was far less when this plant was near the invader plant Tithonia rotundifolia than away from it.Also, both plant species hosted some spe-cies-specific fungi species .In particular, invader Tithonia rotundifolia hosted Graphiola phoenicis, a notorious fungi species for its damage on plant growth and development , which might facilitate the invasion success of Tithonia ro-tundifolia by inhibiting native plants .Our results thus showed that phyllosphere fungi were diverse in both richness and function for invader plant Tithonia rotundifolia and native plant Desmodium spicatum, and future study should further explore the interactions between phyllosphere microbes and host plants as well as involving mechanisms .
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