Resumo

REYES GUZMAN, Gerardo. Food safety: the fungus Ug99 a global threat to wheat crops. Rev. Mex. Cienc. Agríc [online]. 2019, vol.10, n.4, pp.947-960.  Epub 22-Maio-2020. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v10i4.1229.

The present essay aims to investigate the state of the art in the matter of the fungus Ug99 considered by international organizations as one of the main threats to world food security. To this end, the importance of wheat supply and demand at an international level is estimated and the damage that could be caused by an outbreak of the fungus Ug99 is estimated. Likewise, the origins, evolution, geographic dispersion and classification of stem rust are analyzed to differentiate their types, breeds and danger of infection of the different genes contained in wheat. In this context, the most recent evidences of its presence and the strategies for its control and combat are documented. Finally, it is concluded that even Mexico is vulnerable in case of an epidemiological outbreak in North America caused by Ug99, both on the production and consumption side.

Palavras-chave : black stem rust; food security; Ug99; wheat crops; yellow stem rust.

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