Fusarium verticillioides inoculum potential and its relation with the physiological stored corn seeds quality

Fantazzini, Tatiana Botelho; Guimarães, Renato Mendes; Clemente, Aline da Consolação Sampaio; Carvalho, Everson Reis; Machado, José da Cruz

doi:10.14393/bj-v32n5a2016-33056

Cited by 8 publications

(10 citation statements)

References 16 publications

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“…Nirenberg (1976) [sinonímia: Fusarium moniliforme J. Sheld. (1904)], importante fitopatógeno habitante de solo para a cultura (14,15,23,25,26). Fusarium verticillioides pode diminuir o estande (14,23,25), causar podridões de raízes e colo (14,25), também causar problemas nos homens e animais que consumirem grãos infectados devido à produção de micotoxinas, como as fumonisinas (20,30).…”

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“…(1904)], importante fitopatógeno habitante de solo para a cultura (14,15,23,25,26). Fusarium verticillioides pode diminuir o estande (14,23,25), causar podridões de raízes e colo (14,25), também causar problemas nos homens e animais que consumirem grãos infectados devido à produção de micotoxinas, como as fumonisinas (20,30). O patógeno pode ser transmitido horizontalmente e verticalmente (14,25), além de atacar outras gramíneas, como sorgo e milheto (25).…”

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Potencial de Bacillus spp. em promover o crescimento e controlar Fusarium verticillioides em milho

Ferreira

Lago²,

Silva

et al. 2021

Summa phytopathol.

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RESUMO O tratamento de sementes com microrganismos visando promoção de crescimento e controle de Fusarium verticillioides é uma tecnologia que poderá ser utilizada para ampliar a sustentabilidade da cultura do milho. Para tanto, estudos com a utilização de microrganismos para tratamento de sementes visando ao controle de F. verticillioides e promoção de crescimento vegetal em milho são necessários para o desenvolvimento de bioprodutos. Onze isolados de Bacillus spp. foram testados quanto às características bioquímicas relacionadas com promoção de crescimento (produção de ácido cianídrico, ácido indolacético, sideroforos e catalase; solubilização de fosfato e assimilação de nitrogênio). Ainda in vitro foi avaliada a habilidade dos isolados de Bacillus em inibir o crescimento micelial e a germinação de conídios de F. verticillioides. Em casa de vegetação foi avaliado o efeito dos isolados de Bacillus spp. na promoção de crescimento e no controle de F. verticillioides em duas variedades de milho. Bacillus velezensis AP-03 e Bacillus sp. AP-210, não somente inibiram o crescimento micelial e a germinação de esporos, mas também promoveram o crescimento das plantas e controlaram F. verticillioides em sementes de milho em condições de casa de vegetação.

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Potencial de Bacillus spp. em promover o crescimento e controlar Fusarium verticillioides em milho

Ferreira

Lago²,

Silva

et al. 2021

Summa phytopathol.

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“…The results of the transmission test underscore the evidence that the considerable incidence of pathogens may have compromised the physiological quality of the seeds, which would explain the low germinative power. Several studies have reported that, besides problems in the field, the genus Fusarium is also responsible for the rotting of seeds [41]. [42] also found no transmission of Fusarium spp.…”

Section: Discussionmentioning

confidence: 99%

Physiological potential and fungi control of Moringa oleifera Lamark seeds treated with essential oils

et al. 2020

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Moringa oleifera Lam. is a fast-growing, drought-resistant, rustic plant with high nutritive value. The aim of the present study was to determine the effectiveness of essential oils from citronella grass (Cymbopogon winterianus), lemongrass (Cymbopogon citratus) and thyme (Thymus vulgaris) on the reduction of the incidence of fungi associated with moringa seeds as well as the influence of these oils on the physiological quality of the seeds. Two experiments were conducted, both with an entirely randomized design. The seeds were treated with the citronella, lemongrass and thyme essential oils at concentrations of 250 and 500 µL (100 seeds per treatment). The fungicide Captan was used as the control treatment. The incidence of fungi on the treated seeds was evaluated in the first experiment. The germination percentage, shoot length, primary root length, shoot dry mass and root dry mass of the seedlings were evaluated in the second experiment. The most incident fungus was also isolated for the transmission test. The following fungi were identified on the moringa seeds: Fusarium spp., Nigrospora sp., Aspergillus sp., Penicillium sp., Alternaria sp., Phomopsis sp., Curvularia sp., Colletotrichum sp., Pestalotipsis sp., Lasiodiplodia sp. and Chaetomium sp. The essential oils significantly reduced the incidence of the fungi. However, changes in the physiological quality of the seeds were associated with the use of the oils. No transmission of Fusarium spp. from the seeds to the seedlings occurred, but this fungus caused the rotting of seeds in the germination phase.

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“…Electric conductivity test: was conducted following the methodology proposed by Brandão Júnior et al (1997). Sanity of seeds: was evaluated through the blotter test with freezing, according described by Fantazzini et al (2016).…”

Section: Methodsmentioning

confidence: 99%

Mechanical Damages and Chemical Treatments in the Quality of Maize Seeds Stored

Ribeiro¹,

Pires²,

Fantazzini³

et al. 2019

JAS

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The current system of seeds production is highly mechanized and these operations can contribute to losses in quality due the incidence of mechanical damages. The objective in this work was to study the effect of the chemical treatment and the storage on quality of maize seeds with mechanical damages. The seeds used were individually analyzed through X-ray test for the obtainment of three lots; 1-seeds without separation, 2-seeds without mechanical damages and 3-seeds with mechanical damages. The lots were evaluated according the physiological quality, sanity and enzymatic analyzes before and after the chemical treatment with the insecticide Maxim Advanced® and the fungicide Cruiser® and also after 90 days of storage. The chemical treatment of maize seeds is efficient in the control of pathogens, like Fusarium sp. The performance of seeds with internal and external damages can be maintained for 90 days when treated with fungicides and insecticides and stored in environment conditions. The isoenzymatic patterns of catalase (CAT), superoxide dismutase (SOD), malate dehydrogenase (MDH) and alcohol dehydrogenase (ADH), confirmed the higher deterioration of non-treated seeds during the storage. The mechanical damages found in seeds contribute to the reduction of viability and vigor of maize seeds.

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Fusarium verticillioides inoculum potential and its relation with the physiological stored corn seeds quality

Cited by 8 publications

References 16 publications

Potencial de Bacillus spp. em promover o crescimento e controlar Fusarium verticillioides em milho

Potencial de Bacillus spp. em promover o crescimento e controlar Fusarium verticillioides em milho

Physiological potential and fungi control of Moringa oleifera Lamark seeds treated with essential oils

Mechanical Damages and Chemical Treatments in the Quality of Maize Seeds Stored

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