The InnovPlantProtect team looking for a solution to pyriculariosis was at the Open Day for Rice Growing in Baixo Mondego. The infected rice samples taken afterwards are already being analyzed in the laboratory.
Cristina Azevedo, Tiago Amaro e Pedro Rosa are researchers at InnovPlantProtect (InPP) and are working on the development of biopesticides against rice pyriculariosis, one of the most common diseases of this cereal worldwide and also in Portugal. As a result of the be present at the Open Day of Rice Culture in Baixo Mondego, organized by the DRAP Centro, On September 14, they subsequently made two field trips to collect samples of infected rice.
The team carried out the harvests in the Mondego area in Montemor-o-Velho, with the support of António Jordão, from DRAP Centro, and in the Tejo area in Salvaterra de Magos, with the support of Lourenço Palha, from the COTArroz, after a contact initiated by the INIAV Ana Sofia Almeida. The aim of these collections is to isolate and genetically characterize the isolates (cultures of microorganisms) of Magnaporthe oryzae, the fungus that causes the disease, present in Portugal today.
The Open Day showcased “the excellent work carried out by the INIAV team in the national rice improvement program and by Lusosem in various field trials,” says Cristina Azevedo, director of the InPP's New Biopesticides Department.
In the laboratory, the researchers are now trying to isolate the fungi from rice samples collected in the field; the next step will be to characterize them from a genetic and infectivity point of view - the ability of a pathogen to invade an organism and cause an infection - in order to know the current genetic diversity of the fungi. Magnaporthe oryzae in Portugal.
In 2021, there will be a higher incidence of rice pyriculariosis in Portugal, especially in Baixo Mondego, due to fewer hours of sunlight (more days with less open skies), among other climatic conditions, explains António Jordão, from DRAP Centro.
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