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Microbiol Res

Title:		Microbial volatiles as plant growth inducers
Author(s):		Fincheira P; Quiroz A;
Address:		"Ecological Chemistry Laboratory, Center for Excellence in Biotechnology Research Applied to the Environment (CIBAMA, for its acronyn in Spanish), Faculty of Engineering and Science, Universidad de La Frontera, Av. Francisco Salazar 01145, Temuco, Chile; Universidad de La Frontera, Av. Francisco Salazar 01145, Casilla 54-D, Temuco, Chile. Ecological Chemistry Laboratory, Center for Excellence in Biotechnology Research Applied to the Environment (CIBAMA, for its acronyn in Spanish), Faculty of Engineering and Science, Universidad de La Frontera, Av. Francisco Salazar 01145, Temuco, Chile; Department of Chemical Sciences and Natural Resources, Faculty of Engineering and Science, Universidad de La Frontera, Av. Francisco Salazar 01145, Temuco, Chile. Electronic address: andres.quiroz@ufrontera.cl"
Journal Title:		Microbiol Res
Year:		2018
Volume:		20180131
Issue:
Page Number:		63 - 75
DOI:		10.1016/j.micres.2018.01.002
ISSN/ISBN:		1618-0623 (Electronic) 0944-5013 (Linking)
Abstract:		"Agricultural practices require novel products that allow sustainable development and commercial production according to the needs of farmers and consumers. Therefore, in the last decade, eco-friendly alternatives have been studied, so volatile organic compounds (VOCs) emitted by microorganisms have emerged as a cheaper, effective, efficient, and an eco-friendly alternative. VOCs are lipophilic compounds derived from microbial metabolic pathways with low molecular weight (<300?ª+g?ª+mol(-1)), low boiling point, and high vapor pressure that allow them to act as signal molecules over short and long distances. Main case studies provide evidence that VOCs released from diverse microorganisms (i.e. Bacillus, Pseudomonas, Arthrobacter, Fusarium, and Alternaria) can stimulate growth on a specific 'target' seedling, such as Arabidopsis and tobacco. Some identified compounds, such as 3-hydroxy-2-butanone (acetoin), 2,3-butanediol, 2-pentylfuran, or dimethylhexadecylmine have shown their ability to elicit growth at root or leaf level. Few studies indicate that VOCs act in the regulation at phytohormone, metabolic pathways and nutrition levels according to genetic, proteomic, and metabolic analyses; but action mechanisms associated with growth-inducing activity are poorly understood. In this work, we reviewed case studies regarding identified compounds and action mechanisms for a better understanding of the information collected so far. Additionally, a brief description about the effects of VOCs for induction of resistance and tolerance in plants are presented, where compounds such as acetoin, dimethyl disulfide, 3-pentanol and 6-pentyl-alpha-pyrone have been reported. Furthermore, we summarized the knowledge to direct future studies that propose microbial VOCs as a technological innovation in agriculture and horticulture"
Keywords:		Acetoin/metabolism Arabidopsis/microbiology Bacteria/metabolism Butylene Glycols/pharmacology Disease Resistance Disulfides/pharmacology Fungi/metabolism Furans/pharmacology Metabolic Networks and Pathways/drug effects Methylamines/pharmacology Pentanols/;
Notes:		"MedlineFincheira, Paola Quiroz, Andres eng Review Germany 2018/03/20 Microbiol Res. 2018 Mar; 208:63-75. doi: 10.1016/j.micres.2018.01.002. Epub 2018 Jan 31"