Majoritary compounds identified in essential oils of Cymbopogon species inhibits Rhizoctonia solani, causal agent of rice sheath blight

Scheuermann, Klaus Konrad; Berltoldi, Fabiano Cleber; Pazini, Bernardo Scarabelot; Haro, Marcelo Mendes; Rebelo, Andrey Martinez

doi:10.34188/bjaerv3n2-014

Cited by 1 publication

(2 citation statements)

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“…The other treatments did not differ statistically and did not promote fruit protection compared to the control. An ecological alternative of great potential is the use of EOs in the control of phytopathogens, which is associated with other disease management practices, results in greater efficiency in the control of these microorganisms, in addition to minimizing the emergence of new races of phytopathogens, collaborating in the production of organic products (KACEM et al, 2016;SCHEUERMANN et al, 2020).…”

Section: Experiments IImentioning

confidence: 99%

“…Several studies related to managing diseases through essential oils proved to be efficient in inhibiting mycelial growth, 87 sporulation, and spore germination in in vitro tests. Scheuermann et al (2020) reported that when using Cymbopogon martinii and C. citratus oils at a concentration of 0.075%, they inhibited the mycelial growth of Rhizoctonia solani.…”

Section: Introductionmentioning

confidence: 99%

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Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits

et al. 2023

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Tangerines and their hybrids are affected by economically essential diseases. The Alternaria brown spot (Alternaria alternata f. sp. citri) deserves to be highlighted, as it is present in all tangerine production areas. This study aimed to determine the effect of essential oils on A. alternata f. sp. citri. The experiments were carried out in the Laboratories of Phytopathology and Biology and Technology of Post-Harvest of the Federal University of Paraíba, Areia, PB. Three pathogen isolates were used, and ten essential oils from grape, sunflower, eucalyptus, ginger, copaiba, mint, fennel, citronella, clove, and linseed at a concentration of 1%, diluted in potato dextrose agar for in vitro tests. The oils were diluted in distilled water for the fruit test, and the fruits were immersed in the treatments for 5 min. In addition, the fungicide Thiabendazole (400 mL/100L) and sterile distilled water were used as the control treatments. The fruits were inoculated with a conidia suspension of the pathogen (105 conidia/mL). Mycelial Growth Rate Index, colony diameter, spore production and dimensions, fruit disease severity, and enzymatic activity were evaluated. A completely randomized design was used, with 12 treatments and four replications in vivo. The results indicate that the essential oils of mint, eucalyptus, fennel, and citronella were efficient in the in vitro control of the pathogen, ultimately inhibiting the growth of fungal colonies. Eucalyptus oil efficiently managed A. alternata f. sp. citri on ‘Dancy’ tangerine fruits. Essential oils did not influence the enzymatic activity of the fruits.

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Section: Experiments IImentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%