Antagonismo de Trichoderma SPP. E Bacillus subtilis (UFV3918) a Fusarium sambucinum em Pinus elliottii engelm

Maciel, Caciara Gonzatto; Walker, Colin; Muniz, Marlove Fátima Brião; Araújo, Maristela Machado

doi:10.1590/s0100-67622014000300013

Cited by 16 publications

(14 citation statements)

References 15 publications

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“…son muy semejantes a los obtenidos por Aponte et al [41] con cepas ensayadas para el biocontrol in vitro de diferentes patógenos del suelo, incluido Fusarium; también coinciden con los de Ríos et al [42], quienes reportan inhibición de crecimiento de F. oxysporum en más del 50% con cepas nativas de Trichoderma (Figure 1 Bacillus. Los resultados de esta investigación también coinciden con los de Maciel et al [45], ya que reportaron que cepas nativas de Trichoderma spp. y B. subtilis fueron antagonistas contra F. sambucinum, señalando que esta acción fue más pronunciada cuando se utilizó Trichoderma spp., el cual inhibió en más de 60% a las colonias del fitopatógeno.…”

Section: Confrontaciones In Vitrounclassified

Morphology and Biochemistry of Microbial Antagonists and Their Effect in the Growth of Garbanzo and Control of Fusariosis

Ortiz¹,

Alcaraz²,

Perez³

et al. 2016

OALib

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The chickpea (Cicer arietinum L.) is an important crop in the world. In this study, six strains of indigenous rhizosphere microorganisms (T442, T3241, 7A1, 751, HRG-050 y HRG-060) were characterized morphologically and biochemically through catalogs and API tests, and evaluated as growth promoters and biocontrol agents of F. oxysporum f. sp. ciceris (Foc), causal agent of Fusarium wilt of chickpea under laboratory and field conditions. Preliminary studies were performed in vitro, evaluating antagonism by PICR of Foc, in Petri dishes with PDA culture medium; the stimulation of germination was evaluated by seed inoculation with the same strains. In the field, chickpea seeds were inoculated with said antagonistic strains at a concentration of 1 × 10 8 ufc or conidia mL −1, establishing eight treatments: six based on the inoculation of seed with each antagonist strain, a chemical treatment (Benomyl) and a witness, in block design randomized complete, evaluating the protective effect and stimulatory in chickpea plants. The strains were characterized as Bacillus subtilis, Agrobacterium radiobacter, Pseudomonas sp., Trichoderma sp., and Bacillus megaterium, the latter with low percentage of identification. HRG-060 (Trichoderma sp.) and T442 (Bacillus subtilis) proved to be the best biocontrol agents in laboratory and field, as well as higher growth promoters, as significantly reduced growth of the pathogen and the incidence of the disease in the field, and increased the germination, greenness, biomass and yield of chickpea. The use of strains HRG-060 y T442 to control Fusarium wilt of chickpea may be possible in the conditions that have the central area of Sinaloa.

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Section: Confrontaciones In Vitrounclassified

Morphology and Biochemistry of Microbial Antagonists and Their Effect in the Growth of Garbanzo and Control of Fusariosis

Ortiz¹,

Alcaraz²,

Perez³

et al. 2016

OALib

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“…in soybean [16], Trichoderma spp. and Bacillus subtilisin the control of Fusarium sambucinum in Pinus elliottii seedlings [17] and Bacillus subtilis in the control of Fusarium graminearum in wheat and barley [18]. However, there is lack of information regarding the treatment of seeds with biocontrol agents in cotton.…”

Section: Introductionmentioning

confidence: 99%

Biocontrol Potential of Trichoderma and Bacillus Species on Fusarium oxysporum f. sp vasinfectum

Farias

Nascimento

Cruz

et al. 2019

JEAI

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Fusarium wilt, caused by Fusarium oxysporum f. sp. vasinfectum, is one of the major diseases of cotton. Preventive methods to manage this disease should be adopted what includes the seed treatment with biocontrol agents as a good alternative. This work aimed to evaluate the efficiency of biological products based on Trichoderma spp. and Bacillus subtilis in the control of Fusarium oxysporum f. sp. vasinfectum (Fov) applied in seeds and seedlings of cotton. The experiment was carried out at the Laboratório de Fitopatologia of the Centro de Ciências Agrárias, of the Universidade Federal de Paraíba (CCA-UFPB), located in the city of Areia, Paraíba - Brazil. The disease transmission of the seeds to the seedlings was evaluated. After the transmission test, cotton seeds of the variety Mocó (Gossypium hirsutum var. Marie-gallante (Watt) Hutch.), BRS 286 and Topázio cultivar (Gossypium hirsutum L.) were submitted to the treatments T1 - Control, T2 - Trichodel® (0,5 mL); T3-Trichodel® (1.0 mL); T4-Trichodel® (1.5 mL); T5-Trichodel® (2.0 mL); T6-Bactel® (2.0 mL); T7-Bactel® (2.5 mL); T8-Bactel® (3.0 mL); T9-Bactel® (3.5 mL) diluted in 100 mL SDW; T10 - Fungicide Captana (240 g / 100 kg of seeds) and inoculated with Fov. The pathogen incidence of the seeds was evaluated seven days after the inoculation (DAI). To evaluate the biological control of Fov in the seedlings, the treated seeds were submitted to the following inoculation methods: 1 - inoculation of the substrate with a pathogen conidia suspension; 2 - immersion of the seeds in the conidia suspension and 3 - direct contact of the seeds with the pathogen mycelium. Twenty-one DAI the disease severity and percentage of seedlings with vascular darkening were evaluated. It was observed a transmission rate of 64.0 to 89.0% of the seeds to the seedlings. Trichodel® reduced the incidence and severity of Fov in the cotton seedlings and was the most efficient product.

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“…In their pioneering study on imported seeds of several Pinus species, Lasca et al (1971) demonstrated for the first time the presence of fungi in their seeds, including Pestalotia, Fusarium, Mucor, Aspergillus, Trichothecium, Alternaria, Diplodia, Botryodiplodia, Helminthosporium, Chaetomium, Rhizopus, Neurospora, and Penicillium. Recently, the quarantine pest Fusarium circinatum was detected in pine seedlings from imported seeds (Pfenning et al, 2014). Nevertheless, the health quality of pine seeds has been little studied in Brazil (Santos et al, , 2015Maciel et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…In addition to the study on the risk of using imported pine seeds (Pfenning et al, 2014), the few works performed in Brazil with national pine seeds have shown the association of several Fusarium species with pine seed rot and damping-off (Maciel et al, 2014;Homechin et al, 1986;. In the 1980s, F. moniliforme, F. oxysporum and F. semitectum were reported in seed lots of Pinus taeda and Pinus elliottii var.…”

Section: Introductionmentioning

confidence: 99%

Pine Seeds Treatment with Trichoderma for Fusarium Control

Silva¹,

Santos

Auer

et al. 2019

Floresta Ambient.

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This study analyzes the in vitro antagonistic activity of Trichoderma sp. isolates against Fusarium subglutinans and evaluates the effect of the pine seeds treatment with Trichoderma sp. on the incidence of root rot. Twelve Trichoderma sp. isolates and two F. subglutinans isolates were included in the study. Trichoderma sp. inhibited F. subglutinans mycelial growth through direct contact with hyphae and the production of volatile antifungal compounds. Pine seeds treatment with the antagonist Trichoderma sp. reduced the incidence of root rot, increased the emergence and initial growth in the height of seedlings, and improved seedling health.

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Antagonismo de Trichoderma SPP. E Bacillus subtilis (UFV3918) a Fusarium sambucinum em Pinus elliottii engelm

Abstract: RESUMO -Pinus elliottii é uma espécie de importância no setor florestal e apresenta vulnerabilidade na qualidade sanitária de suas sementes, especialmente pela associação de Fusarium spp., responsável por perdas de plântulas no viveiro.

Cited by 16 publications

References 15 publications

Morphology and Biochemistry of Microbial Antagonists and Their Effect in the Growth of Garbanzo and Control of Fusariosis

Morphology and Biochemistry of Microbial Antagonists and Their Effect in the Growth of Garbanzo and Control of Fusariosis

Biocontrol Potential of Trichoderma and Bacillus Species on Fusarium oxysporum f. sp vasinfectum

Pine Seeds Treatment with Trichoderma for Fusarium Control

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