Reação de genótipos de tomateiro às raças 2 e 3 de Fusarium oxysporum f. sp. lycopersici

Souza, Leonardo T; Michereff, Sami Jorge; Laranjeira, Delson; Andrade, Domingos Egt; Ferraz, Edinardo; Lima, Gaus Sa; Reis, Ailton

doi:10.1590/s0102-05362010000100019

Cited by 10 publications

(8 citation statements)

References 6 publications

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“…P = rootstocks; N = nematode; F = Fusarium; FC/IC = Final count/Initial count; EE = experimental error, CV = coefficient of variance. Even though the F1 plants were inoculated with F. solani, only 3 species presented signs of rootsystem infection, as reported by Souza et al (2010), while 2 species showed a higher resistance: S. asperolanatum with Fusarium and N. glauca with Fusarium. Among the susceptible species, S. auriculatum presented infection signs sooner than the tree tomato.…”

Section: Resultssupporting

confidence: 58%

“…Tree tomato is a promising crop all over the world and it has been researched to increase its postharvest time (Pinzón-Gómez et al, 2014). Nonetheless, as a member of the Solanaceae family, its root system is affected by fungi of the Fusarium genus (Souza et al, 2010). In addition to this, one of the members of this genus (Fusarium solani) not only affects tree tomato rootneck, causing plants to rot, but also affects several other plants that are important to production (Benítez et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Especies de Solanáceas Andinas con resistencia a factores bióticos, como portainjerto de tomate de árbol (Solanum betaceum Cav.)

Viteri-Díaz

Vásquez-Castillo²,

Racines-Oliva³

et al. 2020

manglar

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Section: Resultssupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Especies de Solanáceas Andinas con resistencia a factores bióticos, como portainjerto de tomate de árbol (Solanum betaceum Cav.)

Viteri-Díaz

Vásquez-Castillo²,

Racines-Oliva³

et al. 2020

manglar

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“…Spore suspensions with a concentration of 1 × 10 6 conidia mL −1 were prepared from 7‐day‐old cultures (Cai et al., 2003). Tomato seedlings at 15 days of age were removed from the trays, had their root tips cut, and were immersed in the spore suspension for 5 min (Souza et al., 2010). The experimental design used was completely randomized, with six replicates for each isolate.…”

Section: Methodsmentioning

confidence: 99%

Fusarium species causing root rot and wilt in tomato in Brazil

Severo,

Soki Shibutani,

da Silva

et al. 2024

Journal of Phytopathology

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A high frequency of plants showing symptoms of wilting and root rot has been observed in tomato‐producing areas in Santarém and Belterra, Pará, Brazil. These plants showed symptoms ranging from yellowing to wilting, with roots displaying reduced development and darkening of the xylem. Four fungal isolates, derived from a collection of 12 obtained from symptomatic plants, were chosen for identification using both morphological and phylogenetic species concepts. To determine the identity of the fungi, DNA was extracted and used in PCR reactions. PCR products were sequenced from the TEF‐1α and RBP2 regions and compared with sequences in GenBank using BLASTn. Based on the phylogenetic analyses, the isolates were identified as Fusarium falciforme and Fusarium suttonianum, belonging to the species complex Fusarium solani – (FSSC), and Fusarium triseptatum, belonging to the species complex Fusarium oxysporum – (FOSC). The fourth isolate, COUFPI 295, grouped within a clade of F. kalimantanense and F. sangayamense from FOSC. The fulfilment of Koch's postulates confirmed that all isolates induced symptoms of root rot and concomitant reduction in root mass, leading to observable wilting symptoms. This is the first report of F. suttonianum, F. falciforme and F. triseptatum causing root rot and wilt in tomato plants in Brazil.

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“…Symptom severity of the shoot system of the plants was assessed (6-weeks after pathogen inoculation) using the following index (Souza et al, 2010): 0: no symptoms, 1: yellowing 1 -25% of the leaves near the stem base, 2: Yellowing and wilt 26-50% of leaves with a simple brown discoloration in xylem vessels, 3: Yellowing and wilt 51 -75% of the leaves with dark brown coloring in xylem vessels, 4: Wilt and die 76-100% of leaves.…”

Section: Percentage Of Disease Severities and Infectionmentioning

confidence: 99%

Biological management of fusarium wilt on tomato caused byFusarium oxysporumf. sp.lycospersiciby some plant growth-promoting bacteria

Hussein

Al-Dulaimi

2020

Preprint

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Chemical approaches have been applied to combat Fusarium wilt disease for a long time. Even though pesticides are effective in controlling the disease, they continue to damage the environment. Environmental-friendly approaches to manage plant disease are the goal of many studies recently. This study was conducted to assess the efficacy of some bio-agents in induction of systemic resistance in tomato plants as a management approach of Fusarium wilt disease caused by Fusarium oxysporum f.sp. lycopersici (FOL) under condition Plastic house. Results of the plastic house experiments showed that all treatments in decreased Fusarium disease percentage and severity on tomato, two bacterial combinations (Streptomyces sp. (St) and Pseudomonas fluorescence (Pf)) decreased the infection percentage and disease severity with 16.6% and 8.3%, respectively. Treatment with St reduced the infection percentage and disease severity with 33.3% and 22.8%, while the Pf treatment showed 41.6% and 31.2% reduction in infection percentage and disease severity, compared to 100% and 91.6% in the control treatment. Results of induced systemic resistance (ISR) biochemical indicators showed significant differences in tomato plants. Peroxidase and Phenylalanine-Ammonia-Lyase (PAL) activity and the Phenol content increased significantly 14 days after treatments compared to the control treatment, which contains only the fungal pathogen FOL.

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Reação de genótipos de tomateiro às raças 2 e 3 de Fusarium oxysporum f. sp. lycopersici

Abstract: Reaction of tomato genotypes to races 2 and 3 of Fusarium oxysporum f. sp. lycopersici

Cited by 10 publications

References 6 publications

Especies de Solanáceas Andinas con resistencia a factores bióticos, como portainjerto de tomate de árbol (Solanum betaceum Cav.)

Especies de Solanáceas Andinas con resistencia a factores bióticos, como portainjerto de tomate de árbol (Solanum betaceum Cav.)

Fusarium species causing root rot and wilt in tomato in Brazil

Biological management of fusarium wilt on tomato caused byFusarium oxysporumf. sp.lycospersiciby some plant growth-promoting bacteria

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