In 2024, dieback was detected on mango trees in Pernambuco, Brazil, with 40% disease incidence in all areas visited. Three isolates (MP22, MP27 and MP29) were obtained. Based on morphology, cultural and molecular analysis, the causal agent was identified as Diaporthe arecae. Koch's&...

Garlic flowering is agronomically important because it ensures seed production, which is necessary for the reproduction of the species and the generation of new plants. Therefore, the objective of this study was to evaluate the agronomic performance and flowering capacity of garlic geno...

Study shows host species drive PVY evolution. Serial passages of isolates PVYNb and PVYSt in solanaceous hosts revealed that N. benthamiana promotes viral diversification and fitness, while tomato acts as a sink, limiting adaptation. Host-specific mutations underscore virus emergence potential.

Estudo sobre o ToALCV (Topilevirus) no DF. Clone infeccioso confirmou os Postulados de Koch, causando nanismo e clorose. Todas as 15 cultivares testadas foram suscetíveis, incluindo as resistentes a begomovírus. B. tabaci, A. albidula e transmissão mecânica resultaram negativos.

One of the emerging biotic problems of the lettuce (Lactuca sativa) crop in Brazil is the black root rot caused by two Berkeleyomyces species, B. basicola and B. rouxiae. Although sources of resistance have already been reported for B. basicola, there is still no information&#...

BraCTV (Topilevirus) causes curly top disease in Brazilian tomatoes, transmitted by leafhoppers. Study confirms its presence in DF, PE, MT, SC, and SP, with high incidence in SP (79.2%). Symptoms include leaf curling and stunting. Results highlight the need for urgent monitoring and...

Identificou-se uma nova espécie de begomovírus bipartido em tomateiros em Cristalina (GO), nomeada Tomato severe deformation virus (TSDV). Com identidade de ~86% ao ToICV2, causou severa deformação e clorose em testes de patogenicidade (Postulados de Koch), com alta taxa de infecção (87,13%).

Several specific primers based on the internal transcribed spacer (ITS) region of rDNA have been used to discriminate anastomosis groups (AGs) and subgroups in Rhizoctonia solani, but the efficacy of these primers was not evaluated considering several known AGs. This study aimed to ...

Investigates sweetpotato resistance to M. javanica via GWAS. Identifies 5 genomic regions on chromosomes 3, 9, 11, and 12 linked to defense genes (LRR-RKs, Ubiquitin). Findings enable marker-assisted selection to develop resistant cultivars efficiently.