Journal ArticleDOI
Allelochemical Effects of Volatile Compounds and Organic Extracts from Muscodor yucatanensis, a Tropical Endophytic Fungus from Bursera simaruba
Martha L. Macías-Rubalcava,Blanca E. Hernández-Bautista,Fabiola Oropeza,Georgina Duarte,María C. González,Anthony E. Glenn,Richard T. Hanlin,Ana Luisa Anaya +7 more
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TLDR
In general, extracts inhibited plants more than endophytic or phytopathogens fungi, and the possible allelopathic role that metabolites of M. yucatanensis play in its ecological interactions with its host plant and other organisms is discussed.Abstract:
Muscodor yucatanensis, an endophytic fungus, was isolated from the leaves of Bursera simaruba (Burseraceae) in a dry, semideciduous tropical forest in the Ecological Reserve El Eden, Quintana Roo, Mexico. We tested the mixture of volatile organic compounds (VOCs) produced by M. yucatanensis for allelochemical effects against other endophytic fungi, phytopathogenic fungi and fungoids, and plants. VOCs were lethal to Guignardia mangifera, Colletotrichum sp., Phomopsis sp., Alternaria solani, Rhizoctonia sp., Phytophthora capsici, and P. parasitica, but had no effect on Fusarium oxysporum, Xylaria sp., the endophytic isolate 120, or M. yucatanensis. VOCs inhibited root elongation in amaranth, tomato, and barnyard grass, particularly those produced during the first 15 days of fungal growth. VOCs were identified by gas chromatography/mass spectrometry and included compounds not previously reported from other Muscodor species and the previously reported compounds octane, 2-methyl butyl acetate, 2-pentyl furan, caryophyllene, and aromadendrene. We also evaluated organic extracts from the culture medium and mycelium of M. yucatanensis on the same endophytes, phytopathogens, and plants. In general, extracts inhibited plants more than endophytic or phytopathogens fungi. G. mangifera was the only organism that was significantly stimulated by both extracts regardless of concentration. Compounds in both organic extracts were identified by gas chromatography/mass spectrometry. We discuss the possible allelopathic role that metabolites of M. yucatanensis play in its ecological interactions with its host plant and other organisms.read more
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Fungal volatile organic compounds: A review with emphasis on their biotechnological potential
TL;DR: Volatiles represent a new frontier in bioprospecting, and the study of these gas-phase compounds promises the discovery of new products for human exploitation and will generate new hypotheses in fundamental biology.
Journal ArticleDOI
Chemical diversity of microbial volatiles and their potential for plant growth and productivity
TL;DR: The chemical diversity of MVOCs is reviewed by describing microbial–plants and microbial–microbial interactions and MVOC role in inducing phenotypic plant responses and their potential physiological effects on crops are discussed.
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Fungal volatile organic compounds and their role in ecosystems
TL;DR: There is increasing data that show that fungal VOCs frequently mediate interactions between organisms within and across different ecological niches, and this mini review is to orchestrate data on fungalVOCs obtained from disparate disciplines as well as to draw attention to the ecological importance of fungal GOCs in signaling between different species.
Journal ArticleDOI
Antidepressant activity of Litsea glaucescens essential oil: identification of β-pinene and linalool as active principles.
Silvia Laura Guzmán-Gutiérrez,Rocío Gómez-Cansino,J.C. García-Zebadúa,Nelly del Carmen Jiménez-Pérez,Ricardo Reyes-Chilpa +4 more
TL;DR: The results support the use of L. glaucescens in Mexican Traditional Medicine for the treatment of sadness and show antidepressant-like activity at doses of 100 and 300 mg/Kg.
Journal ArticleDOI
Bioprospecting bacterial and fungal volatiles for sustainable agriculture.
TL;DR: It is proposed that MVOCs can be exploited as an ecofriendly, cost-effective, and sustainable strategy for agricultural practices.
References
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Journal ArticleDOI
Fungal endophytes limit pathogen damage in a tropical tree
A. Elizabeth Arnold,Luis C. Mejía,Damond Kyllo,Enith I. Rojas,Zuleyka Maynard,Nancy Robbins,Edward Allen Herre +6 more
TL;DR: It is shown that inoculation of endophyte-free leaves with endophytes isolated frequently from naturally infected, asymptomatic hosts significantly decreases both leaf necrosis and leaf mortality when T. cacao seedlings are challenged with a major pathogen.