- Chitin-deacetylase activity induces appressorium differentiation in the rice blast fungus Magnaporthe oryzae.
Chitin-deacetylase activity induces appressorium differentiation in the rice blast fungus Magnaporthe oryzae.
Scientific reports (2017-08-31)
Misa Kuroki, Kana Okauchi, Sho Yoshida, Yuko Ohno, Sayaka Murata, Yuichi Nakajima, Akihito Nozaka, Nobukiyo Tanaka, Masahiro Nakajima, Hayao Taguchi, Ken-Ichiro Saitoh, Tohru Teraoka, Megumi Narukawa, Takashi Kamakura
PMID28852173
ABSTRACT
The rice blast fungus Magnaporthe oryzae differentiates a specialized infection structure called an appressorium to invade rice cells. In this report, we show that CBP1, which encodes a chitin-deacetylase, is involved in the induction phase of appressorium differentiation. We demonstrate that the enzymatic activity of Cbp1 is critical for appressorium formation. M. oryzae has six CDA homologues in addition to Cbp1, but none of these are indispensable for appressorium formation. We observed chitosan localization at the fungal cell wall using OGA
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