Fungal succession on fronds of Phoenix hanceana in Hong Kong

Abstract

Seventy-three fungal taxa were identified during the decomposition process of frond baits of Phoenix hanceana, comprising leaves, rachis-tips, mid-rachides and rachis-bases. Pioneer, mature and impoverished communities were observed in sequence on the frond baits. Fungal communities on different frond parts reached pioneer, mature and impoverished communities at different rates. Fungal communities on leaves and rachis-tips matured more slowly than other parts, but became impoverished rapidly thereafter, and samples were completely decayed at month 13. On the contrary, fungal communities on mid-rachides and rachis-bases matured earlier at month 1, but became impoverished at month 13. Naturally occurring fronds were also examined at the same time. Only half of the fungi were common to baits and naturally occurring fronds. Thus, examination of both frond baits at different stages of decomposition and naturally occurring fronds is recommended to obtain a better estimation of biodiversity.