Chemical composition and control of Sclerotium rolfsii Sacc by essential oils

Ananda Rosa Beserra Santos; Delson Laranjeira; Larisse Raquel Carvalho Dias; Edymilais Da Silva Sousa; Christian DÃ¡rio Silva De Melo; Sidney GonÃ§alo De Lima; Paulo Henrique Soares Da Silva; Candido Athayde Sobrinho

doi:10.5897/AJMR2020.9286

African Journal of
Microbiology Research

Abbreviation: Afr. J. Microbiol. Res.
Language: English
ISSN: 1996-0808
DOI: 10.5897/AJMR
Start Year: 2007
Published Articles: 5233

Full Length Research Paper

Chemical composition and control of Sclerotium rolfsii Sacc by essential oils

Ananda Rosa Beserra Santos

Ananda Rosa Beserra Santos
Departament of Agriculture, Federal Rural University of Pernambuco, Recife - PE, Brazil.
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Delson Laranjeira

Delson Laranjeira
Departament of Agriculture, Federal Rural University of Pernambuco, Recife - PE, Brazil.
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Larisse Raquel Carvalho Dias

Larisse Raquel Carvalho Dias
Agrarian Sciences Centre, MaranhÃ£o State University, SÃ£o LuÃs - MA, Brazil.
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Edymilais Da Silva Sousa

Edymilais Da Silva Sousa
Organic Geochemistry Lab, Chemistry Program, Federal University of PiauÃ, Teresina - PI, Brazil.
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Christian DÃ¡rio Silva De Melo

Christian DÃ¡rio Silva De Melo
Organic Geochemistry Lab, Chemistry Program, Federal University of PiauÃ, Teresina - PI, Brazil.
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Sidney GonÃ§alo De Lima

Sidney GonÃ§alo De Lima
Organic Geochemistry Lab, Chemistry Program, Federal University of PiauÃ, Teresina - PI, Brazil.
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Paulo Henrique Soares Da Silva

Paulo Henrique Soares Da Silva
Embrapa Mid-North, Teresina â€“ PI, Brazil.
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Candido Athayde Sobrinho

Candido Athayde Sobrinho
Embrapa Mid-North, Teresina â€“ PI, Brazil.
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Article Number - 9106E5963529
Vol.14(4), pp. 119-128 , April 2020
https://doi.org/10.5897/AJMR2020.9286

Received: 12 January 2020
Accepted: 10 March 2020
Published: 30 April 2020

Abstract

Essential oils of medicinal plants show potential to control phytopathogens. Essential oils of Lippia sidoides Cham, Lippia lasiocalycina Cham, Lippia origanoides Kunth - Teresina, Lippia origanoides Kunth - Jatobá, Mesosphaerum suaveolens (L.) Kuntze, Croton sonderianus Muell. Arg. And Croton zehntneri Pax et Hoffm. were evaluated regarding their chemical composition and in controlling the Sclerotium rolfsii Sacc. The experiments were carried out in a completely randomized design with five concentrations and the control (without oil application): 0.0313; 0.0625; 0.1250; 0.2500 and 0.500 mL kg^-1 in Petri dishes with PDA medium (potato-dextrose-agar). The evaluations consisted of daily measurements of the colony diameter in diametrically opposite directions, 24 h after the experiment installation and maintained until the radial reach of the colony on the edges of the Petri dish, in one of the treatments. The chemical composition of the essential oils were evaluated by GC-MS and the following compounds were identified: Thymol (33.5%, L. sidoides); piperitenone oxide (67.7%, L. lasiocalicyna); borneol (19.2%, L. origanoides); borneol carvacrol (34.4%, L. origanoides – Jatobá); sabiene (30.3%, M. suaveolens); β-sabinene (30.5%, C. sonderianus); and estragole (90,1%, C. zehntneri). The S. rolfsii fungus is highly sensitive to L. sidoides, L. origanoides - Jatobá and C. zehntneri essential oils, suggesting its use in the management of Sclerotium wilt in cowpea.