A Novel Fungal Protease Expressed in Endophytic Infection of Poa Species | Zendy

J Lindström | Zendy; Shu Sun | Zendy; Faith C. Belanger | Zendy

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A Novel Fungal Protease Expressed in Endophytic Infection of Poa Species

Author(s) -

J Lindström,

Shu Sun,

Faith C. Belanger

Publication year - 1993

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.102.2.645

Subject(s) - endophyte , protease , biology , lolium perenne , festuca arundinacea , plant use of endophytic fungi in defense , serine protease , botany , lolium , acremonium , enzyme , microbiology and biotechnology , biochemistry , poaceae

The fungus Acremonium typhinum produces a novel endoprotease during symbiotic endophytic infection of the grass, Poa ampla. This protease is unusual because it is highly active in the presence of sodium dodecyl sulfate. The enzyme is a thiol-containing serine protease and is localized to a crude membrane fraction. Similar protease activity has been detected in endophyte-infected Poa autumnalis and Poa sylvestris plants. Expression of this protease may be important in endophytic infection of Poa spp., because similar activity has not been detected in endophyte-infected Festuca arundinacea or Lolium perenne.

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