Xanthomonas oryzae is a species of bacteria.

[1] The species contains two pathovars, neither of which is native to Europe: X. o. pv.

[1] Xanthomonas oryzae epidemics can cause yield losses ranging from 2-74%,[2] and the bacteria can be carried on rice seeds, causing further disease spread.

[3] The host resistance gene, Xa21, from Oryza longistaminata, is integrated into the genome of Oryza sativa for its broad-range resistance to rice leaf blight caused by X. o. pv.

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