Brazilian research advances understanding of lethal tanning in palm trees in the US

Palm Kernel & Nut
United States
Published Jun 20, 2023

Original content

Lethal tanning is a bacterial disease that kills more than 20 species of palm trees in the southern United States and the Caribbean and has devastated Florida's green industries for nearly two decades. This disease has been causing a significant decline in palm trees. In a recent discovery made by postdoctoral fellow at Embrapa Environment Jordana Ferreira, funded by FAPESP, during her postdoctoral research at the University of Florida, under the supervision of researcher Sonia Queiroz, it was evaluated that palm trees infected with tanning release high concentrations of volatiles, which alert nearby healthy palms to a possible threat. According to Ferreira, the research results showed that infected, injured or stressed palms released volatile chemical compounds such as E-2-hexenal and hexanal, causing nearby healthy plants to activate the production of other compounds such as 3-hexenal and Z -3-hexen-1-ol to potentially ward off the pest responsible for the disease. “Plants that ...
Source: Embrapa
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