Repositorio
Institucional

Quiroz, Andres

Fincheira, Paola

Microbial volatiles as plant growth inducers

ELSEVIER GMBH, URBAN & FISCHER VERLAG

MICROBIOLOGICAL RESEARCH

en

"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 g 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."

Artículo de revisión

The authors thank CONICYT scholarship (21120145) and project Fondecyt (1141245) for their support in this work.

Los autores agradecen a la beca CONICYT (21120145) y al proyecto Fondecyt (1141245) por su apoyo en este trabajo.

10.1016/j.micres.2018.01.002

pdf

Microorganisms# Plant growth promotion# Resistance induction# Volatile organic compounds (VOCs)

http://dx.doi.org/10.1016/j.micres.2018.01.002

Microbiology

Microorganismos# Promoción del crecimiento vegetal# Inducción de resistencia# Compuestos orgánicos volátiles (COV)

Biotecnología agrícola

Agricultura

Microbiología

WOS:000435064800007

Microbial volatiles as plant growth inducers

Artículo de revisión

version publicada

ELSEVIER GMBH, URBAN & FISCHER VERLAG

MICROBIOLOGICAL RESEARCH

Microbiología

0944-5013

en

ANID CONICYT 21120145#ANID FONDECYT 1141245

ANID CONICYT 21120145

ANID FONDECYT 1141245

The authors thank CONICYT scholarship (21120145) and project Fondecyt (1141245) for their support in this work.

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