[ISOLATION, CHARACTERIZATION AND PATHOGENICITY FUNGI ASSOCIATED WITH PETRI'S DISEASE]

Translated title of the contribution: AISLAMIENTO, CARACTERIZACIÓN Y PATOGENICIDAD DE HONGOS ASOCIADOS A LA ENFERMEDAD DE PETRI

Javier Javier-Alva, Amelia Lopez-Castillo, L. A. Álvarez, Roger Chanduvi-García, Ricardo Peña-Castillo, René Aguilar-Anccota, Carlos Granda-Wong, Miguel Galecio-Julca, Sandro Condori-Pacsi, Arturo Morales-Pizarro

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Background: Peru has become the leading exporter of table grapes focusing its production in the Piura and Ica regions. However, most of the young vineyards (<5 years) in the Piura region have been showing symptoms of Petri's disease. Objective: To isolate, identify and pathogenicity evaluation of fungi associated with Petri disease. Methodology: Isolates were obtained from necrotic streaks in vascular bundles in plants with symptoms of the Petri disease. Identification was performed with the keys proposed by Mostert, by means of macro and microscopic observations. Pathogenicity tests were also performed by measuring the advancement of the length of the necrotic streak (LNE). Results: By their cultural and microscopic characteristics, the following were identified: Phaeoacremonium spp, P. krajdenii, P. inflatipes, P. parasiticum and Phaeomoniella chlamydospora. All the selected isolates were pathogenic in pathogenicity tests 75 days post inoculation (DPI), being the Phaeoacremonium species the ones that presented higher LNE compared to Pa. chlamydospora, which demonstrates their capacity for colonization of vascular bundles and wood degradation. Implications: The pathogens Phaeoacremonium spp, P. krajdenii, P. inflatipes, P. parasiticum and Phaeomoniella chlamydospora are related to Petri's disease in the Piura-Peru region. Conclusion: Phaeoacremonium species showed higher pathogenicity than Pa. chlamydospora 75 DPI. Also, P. inflatipes was morphologically identified in the Piura region requiring molecular identification for corroboration.

Translated title of the contributionAISLAMIENTO, CARACTERIZACIÓN Y PATOGENICIDAD DE HONGOS ASOCIADOS A LA ENFERMEDAD DE PETRI
Original languageSpanish
Article number029
JournalTropical and Subtropical Agroecosystems
Volume26
Issue number1
DOIs
StatePublished - Jan 2023
Externally publishedYes

Bibliographical note

Funding Information:
All authors declare not having received any funding in the development of our research.

Publisher Copyright:
Copyright © the authors. Work licensed under a CC-BY 4.0 License.

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