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      Profile of volatile compounds released by Waitea circinata against Magnaporthe oryzae under different periods and temperatures Translated title: Perfil de compostos voláteis liberados por Waitea circinata contra Magnaporthe oryzae sob diferentes períodos e temperaturas

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          Abstract

          ABSTRACT Rice blast caused by the Magnaporthe oryzae pathogen is a major disease in this crop, and may cause devastating losses. This study aimed to investigate the profile of Waitea circinata mycorrhiza volatile compounds in antagonism to M. oryzae, under different growth periods and temperatures, using a completely randomized design. Volatile organic compounds were extracted by headspace solid phase microextraction and analyzed by gas chromatography mass spectrometry, while multidimensional scaling was used to compare the produced volatile organic compounds. The main compounds responsible by the antagonism to M. oryzae were longifolene, trans-β-farnesene, (Z)-α-bisabolene and δ-amorphene, which can be used as biofungicides and incorporated into rice blast management strategies.

          Translated abstract

          RESUMO A brusone causada pelo patógeno Magnaporthe oryzae é a principal doença do arroz, e pode causar perdas devastadoras. Objetivou-se investigar o perfil de compostos voláteis da micorriza Waitea circinata no antagonismo a M. oryzae, em diferentes períodos e temperaturas, utilizando-se delineamento inteiramente casualizado. Compostos orgânicos voláteis foram extraídos por micro extração em fase sólida, no modo headspace, e analisados por cromatografia gasosa acoplada a espectrometria de massas, enquanto o escalonamento multidimensional foi usado para comparar os compostos orgânicos voláteis produzidos. Os principais compostos responsáveis pelo antagonismo a M. oryzae foram longifoleno, trans-β-farneseno, (Z)-α-bisaboleno e δ-amorfeno, que podem ser usados como biofungicidas e incorporados às estratégias de manejo da brusone do arroz.

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          Most cited references40

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          A generalization of the retention index system including linear temperature programmed gas—liquid partition chromatography

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            Some Distance Properties of Latent Root and Vector Methods Used in Multivariate Analysis

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              Volatile affairs in microbial interactions.

              Microorganisms are important factors in shaping our environment. One key characteristic that has been neglected for a long time is the ability of microorganisms to release chemically diverse volatile compounds. At present, it is clear that the blend of volatiles released by microorganisms can be very complex and often includes many unknown compounds for which the chemical structures remain to be elucidated. The biggest challenge now is to unravel the biological and ecological functions of these microbial volatiles. There is increasing evidence that microbial volatiles can act as infochemicals in interactions among microbes and between microbes and their eukaryotic hosts. Here, we review and discuss recent advances in understanding the natural roles of volatiles in microbe-microbe interactions. Specific emphasis will be given to the antimicrobial activities of microbial volatiles and their effects on bacterial quorum sensing, motility, gene expression and antibiotic resistance.
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                Author and article information

                Journal
                pat
                Pesquisa Agropecuária Tropical
                Pesqui. Agropecu. Trop.
                Escola de Agronomia/UFG (Goiânia, GO, Brazil )
                1517-6398
                1983-4063
                2023
                : 53
                : e75038
                Affiliations
                [3] Goiânia Goiás orgnameUniversidade Federal de Goiás orgdiv1Instituto de Ciências Biológicas orgdiv2Departamento de Genética Brazil leila_garces_araujo@ 123456ufg.br
                [4] Goiânia Goiás orgnameUniversidade Federal de Goiás orgdiv1Instituto de Química orgdiv2Departamento de Química Brazil apterezan@ 123456hotmail.com
                [1] Goiânia Goiás orgnameUniversidade Federal de Goiás orgdiv1Faculdade de Farmácia Brazil melvieira01@ 123456discente.ufg.br
                [2] Catalão GO orgnameUniversidade Federal de Catalão orgdiv1Instituto de Química Brasil marcoshenriquefs@ 123456yahoo.com.br
                Article
                S1983-40632023000101000 S1983-4063(23)05300001000
                10.1590/1983-40632023v5375038
                14c79ffa-53f5-42c1-87c4-6f78325d709e

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 03 April 2023
                : 24 January 2023
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 40, Pages: 0
                Product

                SciELO Brazil


                Brusone,fungo micorrízico,biofungicida,Rice blast,mycorrhizal fungus,biofungicide

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