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The Lichenologist The Lichenologist

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Polyol-assimilation capacities of lichen-inhabiting fungi

Published online by Cambridge University Press:  04 March 2020

Kanami Yoshino [Opens in a new window] ,
Kohei Yamamoto ,
Hiroshi Masumoto ,
Yousuke Degawa ,
Hiroko Yoshikawa ,
Hiroshi Harada  and
Kazunori Sakamoto
Kanami Yoshino
Affiliation:
Graduate School of Horticulture, Chiba University, 648 Matsudo, Matsudo, Chiba271-8510, Japan
Kohei Yamamoto
Affiliation:
Tochigi Prefectural Museum, 2-2 Mutsumi-cho, Utsunomiya, Tochigi320-0865, Japan
Hiroshi Masumoto
Affiliation:
Mountain Science Center, Sugadaira Research Station, University of Tsukuba, 1278-294, Sugadaira, Nagano386-2204, Japan
Yousuke Degawa
Affiliation:
Mountain Science Center, Sugadaira Research Station, University of Tsukuba, 1278-294, Sugadaira, Nagano386-2204, Japan
Hiroko Yoshikawa
Affiliation:
Natural History Museum & Institute, Chiba, Aoba-cho 955-2, Chuo-ku, Chiba260-8682, Japan
Hiroshi Harada
Affiliation:
Natural History Museum & Institute, Chiba, Aoba-cho 955-2, Chuo-ku, Chiba260-8682, Japan
Kazunori Sakamoto
Affiliation:
Graduate School of Horticulture, Chiba University, 648 Matsudo, Matsudo, Chiba271-8510, Japan
Corresponding
E-mail address:
kyoshino2424@gmail.com
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Abstract

Fungi are one of the most diverse carbon source-assimilating organisms, living as saprobes, parasites and symbionts; they play an important role in carbon cycling in the ecosystem. A lichen thallus provides habitats for many non-lichenized fungi and usually contains large quantities of polyols. However, research has not been undertaken to identify carbon sources of lichen-inhabiting fungi. In this study, we isolated various lichen-inhabiting fungi from surface-sterilized Ramalina spp., Flavoparmelia caperata and Peltigera degenii, and demonstrated their ability to assimilate carbon sources, namely glucose, ribitol and mannitol. Several isolates efficiently assimilated mannitol and ribitol; however, most isolates could assimilate only mannitol or both ribitol and mannitol at low levels. It is suggested that there are different preferences and niche segregation of carbon sources among lichen-inhabiting fungi, and that this assemblage includes fungi with different lifestyles such as saprobes, endophytes and transient visitors.

Keywords

Dothideomycetes Lecanoromycetes mannitol Pezizomycetes ribitol Sordariomycetes
Type
Standard Papers
Information
The Lichenologist , Volume 52 , Issue 1 , January 2020 , pp. 49 - 59
Copyright
Copyright © British Lichen Society 2020

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