Can leaf degrading enzymes provide evidence that endophytic fungi becoming saprobes?

Springer Science and Business Media LLC - Tập 41 - Trang 89-99 - 2010
Itthayakorn Promputtha1, Kevin D. Hyde2, Eric H. C. McKenzie3, John F. Peberdy4, Saisamorn Lumyong5
1School of Cosmetic Science, Mae Fah Luang University, Chiang Rai, Thailand
2School of Science, Mae Fah Luang University, Chiang Rai, Thailand
3Landcare Research, Auckland, New Zealand
4University of Nottingham Institute for Enterprise and Innovation, Nottingham University Business School, Nottingham, UK
5Faculty of Science, Department of Biology, Chiang Mai University, Chiang Mai, Thailand

Tóm tắt

The diversity of endophytic and saprobic fungi from Magnolia liliifera leaves were observed and analyzed to establish relationships. Nine endophytes were morphologically and phylogenetically similar to the saprobes; Colletotrichum gloeosporioides, Colletotrichum sp. 2, Corynespora cassiicola, Fusarium sp. 1, Guignardia mangiferae, Leptosphaeria sp., Phomopsis sp. 2, Phomopsis sp. 6, and Phomopsis sp. 10. The endophytes were found to produce the same degrading enzymes as their saprobic counterparts. The isoform of β-mannanase produced from each of endophyte and saprobe counterparts were similar. Fungal succession and enzyme production patterns during leaf decomposition were correlated. The occurrence of saprobes was found to be related to the enzymes that the fungi produce. The study provides further compelling evidence that endophytes can switch lifestyle to saprobes.

Tài liệu tham khảo

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