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Secret lifestyles of Neurospora crassa

Hsiao-Che Kuo,S. Hui,Jaeyoung Choi,F. Asiegbu,J. Valkonen,Yong-Hwan Lee

Published 2014 in Scientific Reports

ABSTRACT

Neurospora crassa has a long history as an excellent model for genetic, cellular and biochemical research. Although this fungus is known as a saprotroph, it normally appears on burned vegetations or trees after forest fires. However, due to a lack of experimental evidence, the nature of its association with living plants remains enigmatic. Here we report that Scots pine (Pinus sylvestris) is a host plant for N. crassa. The endophytic lifestyle of N. crassa was found in its interaction with Scots pine. Moreover, the fungus can switch to a pathogenic state when its balanced interaction with the host is disrupted. Our data reveal previously unknown lifestyles of N. crassa, which are likely controlled by both environmental and host factors. Switching among the endophytic, pathogenic and saprotrophic lifestyles confers upon fungi phenotypic plasticity in adapting to changing environments and drives the evolution of fungi and associated plants.

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