title: The effects of bacterial volatile emissions on plant abiotic stress tolerance.
abstract: Plant growth-promoting rhizobacteria (PGPR) are beneficial plant symbionts that have been successfully used in agriculture to increase seedling emergence, plant weight, crop yield, and disease resistance. Some PGPR strains release volatile organic compounds (VOCs) that can directly and/or indirectly mediate increases in plant biomass, disease resistance, and abiotic stress tolerance. This mini-review focuses on the enhancement of plant abiotic stress tolerance by bacterial VOCs. The review considers how PGPR VOCs induce tolerance to salinity and drought stress and also how they improve sulfur and iron nutrition in plants. The potential complexities in evaluating the effects of PGPR VOCs are also discussed.
authors.affiliation: Shanghai Center for Plant Stress Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences , Shanghai, China.
authors.forename: Xiao-Min
authors.initials: XM
authors.lastname: Liu
authors.affiliation: Shanghai Center for Plant Stress Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences , Shanghai, China.
authors.forename: Huiming
authors.initials: H
authors.lastname: Zhang
keywords: abiotic stress; drought; iron deficiency; plant growth-promoting rhizobacteria; salinity; sulfur nutrition; volatile organic compounds