Brazil: New guarana tree fungus may affect other plants of economic importance
Guarana
Brazil
Published May 10, 2022
Tridge summary
The fungus was observed in guarana tree clones, indicating that the new pathogen needs to be monitored so that it does not become a problem for the crop in the future. A new species of fungus was found on guarana plants, with symptoms characterized as leaf spots similar to anthracnose, is capable of causing leaf disease in açaí and palm trees.
Original content
Photo: Ronaldo Rosa Photo: Ronaldo Rosa The fungus was observed in guarana tree clones, indicating that the new pathogen needs to be monitored so that it does not become a problem for the crop in the future A new species of fungus found on guarana plants, with symptoms characterized as leaf spots similar to anthracnose, is capable of causing leaf disease in açaí and palm trees. The discovery was made in research based on field observation, isolation of the fungus and laboratory analyzes with morphological and molecular characterization, carried out by the Laboratory of Molecular Biology of Embrapa Amazônia Ocidental (AM). The new species belongs to the group of fungi called pestalotiopsis, which encompasses three genera (Pestalotiopsis, Pseudopestalotiopsis and Neopestalotiopsis) and causes diseases in a wide range of hosts. In guarana, species belonging to two of the three genera that include pestalothioids were identified. Of the six strains analyzed, three were identified as ...
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