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Braz J Microbiol

Title:		Antifungal potential of Lauraceae rhizobacteria from a tropical montane cloud forest against Fusarium spp
Author(s):		Reverchon F; Garcia-Quiroz W; Guevara-Avendano E; Solis-Garcia IA; Ferrera-Rodriguez O; Lorea-Hernandez F;
Address:		"Red de Estudios Moleculares Avanzados, Instituto de Ecologia, A.C., Carretera antigua a Coatepec 351, Col. El Haya, Xalapa, Veracruz, Mexico. frederique.reverchon@inecol.mx. Universidad Interserrana del Estado de Puebla-Chilchotla, Rafael J. Garcia Chilchotla, Puebla, Mexico. Red de Estudios Moleculares Avanzados, Instituto de Ecologia, A.C., Carretera antigua a Coatepec 351, Col. El Haya, Xalapa, Veracruz, Mexico. Instituto de Agroindustrias, Universidad Tecnologica de la Mixteca, Huajuapan de Leon, Oaxaca, Mexico. Red de Biodiversidad y Sistematica, Instituto de Ecologia, A.C., Xalapa, Veracruz, Mexico"
Journal Title:		Braz J Microbiol
Year:		2019
Volume:		20190522
Issue:		3
Page Number:		583 - 592
DOI:		10.1007/s42770-019-00094-2
ISSN/ISBN:		1678-4405 (Electronic) 1517-8382 (Print) 1517-8382 (Linking)
Abstract:		"The occurrence of pests and diseases can affect plant health and productivity in ecosystems that are already at risk, such as tropical montane cloud forests. The use of naturally occurring microorganisms is a promising alternative to mitigate forest tree fungal pathogens. The objectives of this study were to isolate rhizobacteria associated with five Lauraceae species from a Mexican tropical montane cloud forest and to evaluate their antifungal activity against Fusarium solani and F. oxysporum. Fifty-six rhizobacterial isolates were assessed for mycelial growth inhibition of Fusarium spp. through dual culture assays. Thirty-three isolates significantly reduced the growth of F. solani, while 21 isolates inhibited that of F. oxysporum. The nine bacterial isolates that inhibited fungal growth by more than 20% were identified through 16S rDNA gene sequence analysis; they belonged to the genera Streptomyces, Arthrobacter, Pseudomonas, and Staphylococcus. The volatile organic compounds (VOC) produced by these nine isolates were evaluated for antifungal activity. Six isolates (Streptomyces sp., Arthrobacter sp., Pseudomonas sp., and Staphylococcus spp.) successfully inhibited F. solani mycelial growth by up to 37% through VOC emission, while only the isolate INECOL-21 (Pseudomonas sp.) inhibited F. oxysporum. This work provides information on the microbiota of Mexican Lauraceae and is one of the few studies identifying forest tree-associated microbes with inhibitory activity against tree pathogens"
Keywords:		Antifungal Agents/chemistry/metabolism/*pharmacology Bacteria/chemistry/classification/isolation & purification/*metabolism Fusarium/*drug effects/growth & development/physiology Lauraceae/*microbiology Plant Diseases/microbiology/prevention & control Soi;
Notes:		"MedlineReverchon, Frederique Garcia-Quiroz, Wilians Guevara-Avendano, Edgar Solis-Garcia, Itzel A Ferrera-Rodriguez, Ofelia Lorea-Hernandez, Francisco eng 2003530890/Instituto de Ecologia,A.C./ Brazil 2019/05/24 Braz J Microbiol. 2019 Jul; 50(3):583-592. doi: 10.1007/s42770-019-00094-2. Epub 2019 May 22"