First Report of <i>Neofusicoccum parvum</i>, Causal Agent of Dieback on ‘Hass’ Avocado Branches (<i>Persea americana</i> cv. Hass) in Atlixco, México

Morales, Diana Becerra; García, Julia E.; Sánchez, A. Almaraz; Escobar, Victoria Ayala; Ángel, Daniel Nieto

doi:10.1094/pdis-10-18-1808-pdn

Cited by 2 publications

(2 citation statements)

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“…Hass) is one the most economically important agricultural crop in Mexico. The country is the principal producer, consumer and exporter worldwide [1] . However, avocado production faces several challenges, including the occurrence of fungal diseases, which are considered one of the major threats to world food security [2] .…”

Section: Introductionmentioning

confidence: 99%

“…The country is the principal producer, consumer and exporter worldwide. [1] However, avocado production faces several challenges, including the occurrence of fungal diseases, which are considered one of the major threats to world food security. [2] Fusarium dieback (FD) is an emergent fungal disease caused by fungi Fusarium euwallaceae and F. kuroshium, vectored by the invasive ambrosia beetles Polyphagous Shot Hole Borer (PSHB, Euwallacea sp.…”

Section: Introductionmentioning

confidence: 99%

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Identification of Antifungal Compounds from Avocado Rhizobacteria (Bacillus spp.) against Fusarium spp., by a Bioassay‐Guided Fractionation Approach

Guevara-Avendaño

Pérez-Molina

Monribot‐Villanueva

et al. 2022

Chemistry & Biodiversity

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Antimicrobial compounds produced by bacteria have been increasingly acknowledged as an important resource for the control of phytopathogens. We used a bioassay-guided fractionation approach to identify antifungal metabolites produced by two avocado rhizobacteria , both members of the Bacillus subtilis/B. amyloliquefaciens species complex, against Fusarium solani and F. kuroshium, causal agent of Fusarium dieback in avocado and other hosts. The butanol (BuOH) organic extract from INECOL-4742 (B1-Bu) exhibited the highest percentage of inhibition (PI) against F. solani (78.76 %), also inhibiting F. kuroshium by up to 44.30 %. Primary fractions, Bu-F3, Bu-F12 and Bu-F15, obtained by silica gel open column chromatography, exhibited the highest PI against F. solani (28.57 % to 33.50 %) and F. kuroshium (38.78 % to 45.00 %). The presence of cyclic lipopeptides from the iturin, surfactin and fengycin families in B1-Bu extracts and primary fractions was determined by UPLC-ESI-HRMS. The Confocal Laser Microscopy analysis revealed deformations in the hyphae of F. kuroshium exposed to extracts, primary fractions and C-13 surfactin chemical standard. These results emphasize the potential of natural products from Bacillus for the control of the emerging phytopathogenic fungus F. kuroshium.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%