Rice blast, caused by the filamentous ascomycete Pyricularia oryzae, is one of most devastating diseases rice. Four genetic clusters were previously identified, and three have a large geographic distribution. Asia center diversity origin migrations to other continents, sexual reproduction persisted only in South China–Laos–North Thailand region, which was identified as putative all P. oryzae po...

Blast disease is a notorious fungal leading to dramatic yield losses on major food crops such as rice and wheat. The causal agent, Pyricularia oryzae, encompasses different lineages, each having host range. Host shifts are suspected have occurred in this species from Setaria spp. Lolium emergence of blast maize Iran was observed for the first time north country 2012. We later identified two add...

Abstract Synthesis of assumed natural (12R,13S)-enantiomers pyriculariol (1) and dihydropyriculariol (2), phytotoxins isolated from rice blast disease fungus, Pyricularia oryzae, was achieved using Wittig reaction or microwave-assisted Stille coupling as the key step. The synthesis revealed that 1 2 are racemates. Foliar application test on a leaf indicated both salicylaldehyde core side chain ...

Abstract Pyricularia oryzae is one of the most devastating plant pathogens in world. This fungus produces several secondary metabolites including phytotoxin pyriculols, which are classified into 2 types: aldehyde form (pyriculol and pyriculariol) alcohol (dihydropyriculol dihydropyriculariol). Although interconversion between has been predicted, PYC10 gene for oxidation to known, responsible re...