Controlling Asian soybean rust (Phakopsora pachyrhizi) with Bacillus spp. and coffee oil

Dorighello, Dalton Vinicio; Bettiol, W.; Maia, Nílson Borlina; Leite, R. M. V. B. de C.

doi:10.1016/j.cropro.2014.09.017

Cited by 24 publications

(27 citation statements)

References 32 publications

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“…However, these antagonists also act by competition for space and nutrients, as well as synthesis of volatile organic compounds (Lanna Filho et al, 2010;Pérez-García et al, 2010). In addition to inhibiting the mycelial growth, B. subtilis isolates inhibit the spore germination, such as that of the urediniospores of Phakopsora pachyrhizi (Dorighello et al, 2015), urediniospores of Hemileia vastatrix (Bettiol & Varzea, 1992), and spores of Pyricularia oryzae (Bettiol & Kimati, 1990).…”

Section: Resultsmentioning

confidence: 99%

“…isolates can be used to promote vigor, growth, and the induction of resistance mechanisms in plants, in complement to the action of their metabolites (Roh et al, 2007;Francis et al, 2010). Bacillus subtilis is the most studied species Cawoy et al, 2011;Dorighello et al, 2015;Ongena & Jacques, 2008) with 4 to 5% of its genome specialized for the synthesis of antibiotics. This species has also the potential to produce more than 24 structurally diverse compounds during its multiplication process, including cyclic lipopeptides, such as surfactins, iturins and fengycins (Stein, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Commercial formulations of Bacillus spp. for sugarcane pineapple disease control and growth promotion

Brandi

Heck

Ferreira

et al. 2018

Pesq. agropec. bras.

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The objective of this work was to evaluate the commercial formulations of Bacillus subtilis QST-713 and Bacillus pumilus QST-2808 on mycelial growth inhibition of Thielaviopsis paradoxa, for the control of the pineapple disease and growth promotion in sugarcane. The inhibition of mycelial growth was evaluated in paired culture tests. Bacillus isolates were transferred to Petri dishes 48 hours before the pathogen, and the zone of inhibition was determined. The direct effect of the autoclaved commercial formulations at 0, 0.001, 0.01, 0.1, 1.0, and 10.0% on the inhibition of pathogen mycelial growth was evaluated. Bacillus spp. potential in controlling the disease and promoting plant growth was evaluated in assays on plant development and disease severity, both under controlled conditions and in the field. Bacillus isolates inhibited pathogen mycelial growth; however, the isolates did not control the disease effectively in the growth chamber and in the field. In the field assay without infestation by the pathogen, all treatments with biocontrol agents and fungicide increased the yield of cane stalks and sugar per hectare, compared with the control. In the assay with infestation by the pathogen, the B. pumilus-based product (2.0 L ha-1) and fungicide differed from the control only for the variable number of tillers.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Commercial formulations of Bacillus spp. for sugarcane pineapple disease control and growth promotion

Brandi

Heck

Ferreira

et al. 2018

Pesq. agropec. bras.

Self Cite

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“…Corroborando com esse estudo, Dorighello (2015), também observou sintomas de fitotoxidez nas folhas destacadas da soja, quando estas foram tratadas com óleo de café cru e torrado na concentração de 2%, para avaliar o controle da ferrugem asiática da soja. De maneira similar, o tratamento com óleo de neem também causou fitotoxidez em folhas de tomateiro, quando utilizado nas concentrações de 1 e 2 % (Carneiro, 2003).…”

Section: Resultsunclassified

ÓLEOS ESSENCIAIS COMO ALTERNATIVA PARA O CONTROLE DO Colletotrichum coffeanum NO CAFEEIRO

et al. 2016

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Na cultura do café o gênero Colletotrichum, causador de doenças conhecidas como antracnose, acarreta perdas significativas em sua produção. Este estudo avaliou o efeito de óleos essenciais sobre a germinação de conídios e o crescimento micelial de Colletotrichum coffeanum e na redução da severidade da antracnose em folhas de café. Folhas destacadas de café foram tratadas com óleos essenciais de citronela, capim-limão e hortelã nas concentrações de 0; 5; 7,5; 10 e 15 µLmL -1 e após 24h avaliadas quanto a fitotoxidez para proceder com a inoculação. A germinação de conídios foi conduzida com a deposição de 100 µL de cada tratamento sobre 100 µL da suspensão de conídios (10 4 conídios mL -1 ). Para o crescimento micelial, os óleos essenciais foram incorporados ao meio BDA e a mistura vertida em placas de Petri. Após solidificação, um disco de micélio foi repicado no centro da placa. A maior concentração dos óleos causaram fitotoxidez nas folhas, sendo que todas as concentrações do capimlimão foram fitotóxicos 24h após os tratamentos. Hortelã e citronela nas concentrações 5; 7,5 e 10 µLmL -1 não apresentaram fitotoxidez ou apresentaram fitotoxidez reduzida. Até 15 dias após a inoculação não foram observados sintomas da antracnose nas folhas. Hortelã e a citronela, nas três concentrações utilizadas, reduziram significativamente a germinação de conídios e o crescimento micelial. Dessa forma, acredita-se que as concentrações utilizadas contribuíram para fitotoxidez observada. Entretanto, este estudo serve como ponto de partida para que outros sejam conduzidos com estes óleos, utilizando concentrações menores e também com testes envolvendo plantas. Palavras-chave:Controle alternativo, eliciador, fitotoxidez, fungistático.Essential oils as alternative for the control of Colletotrichum coffeanum at the coffee tree. In the coffee culture the Colletotrichum genus which cause diseases known as anthracnose, causes significant lost in coffee production. The study evaluated the effect of essential oils on the conidial germination and mycelium growth of the Colletotrichum coffeanum and in the reduction of severity of anthracnose in coffee leaves. Coffee detached leaves were collected and treated with citronella, lemongrass and mint essential oils at concentrations 0; 5; 7,5; 10 and 15 µLmL -1 , and after 24h were evaluated for phytotoxicity to proceed with the inoculation. Conidial germination was conducted with the deposition of 100 µL of each treatment on 100 µL of the conidial suspension (10 4 conidial mL -1 ). For mycelium growth essential oils were added to BDA media and the mixture poured into Petri dishes. After solidification, a mycelial disc was peaked to the center of the plate. The highest concentration of oils caused phytotoxicity in the leaves, and all lemongrass concentrations were phytotoxic 24 hours after the treatments. Mint and citronella in concentrations 5; 7.5 and 10 µLmL -1 showed no phytotoxicity or had reduced phytotoxicity. Symptoms of anthracnose were not observed 15 days after inoculation on the leaves....

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“…The use of B. subtilis QST-713 Serenade from Bayer (producer of lipopeptides), coupled with Bacillus pumilus, showed a positive effect on soybean exposed to the Asian rust. In particular, B. subtilis was able to reduce disease severity by 98.6% in tests with detached leaves and by 23% under field conditions (Dorighello et al 2015). In wheat, Bacillus LP efficacy was observed against Zymoseptoria tritici (Mejri et al 2017), Gaeumannomyces graminis var.…”

Section: Lps and Their Producers' Application In Agriculturementioning

confidence: 96%

Bacillus lipopeptides as powerful pest control agents for a more sustainable and healthy agriculture: recent studies and innovations

Penha

Vandenberghe

Faulds

et al. 2020

Planta

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Controlling Asian soybean rust (Phakopsora pachyrhizi) with Bacillus spp. and coffee oil

Cited by 24 publications

References 32 publications

Commercial formulations of Bacillus spp. for sugarcane pineapple disease control and growth promotion

Commercial formulations of Bacillus spp. for sugarcane pineapple disease control and growth promotion

ÓLEOS ESSENCIAIS COMO ALTERNATIVA PARA O CONTROLE DO Colletotrichum coffeanum NO CAFEEIRO

Bacillus lipopeptides as powerful pest control agents for a more sustainable and healthy agriculture: recent studies and innovations

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