**5. Application of microbial volatile organic compounds**

Poveda [25] reviewed the application of microbial volatile organic compounds in plants viz. plant growth promotion, tolerance to abiotic stress, induction of defense mechanism, anti-microbial activity against phytopathogens, attractants or repellents to insect pests and post-harvest disease management.


*Volatile Organic Compounds Produced by Microbes in the Management of Postharvest Diseases… DOI: http://dx.doi.org/10.5772/intechopen.110493*

against oxidative damage, by reducing the accumulation of H2O2 accumulation under salt stress but the exact MVOCs involved have not been determined [65]. Under salt stress, myristic acid, phenol-2-methoxy, stearic acid and tetracontane emitted by *Pseudomonas simiae* are capable to reduce Na+, and increase K+ and P, content in roots of soybean seedlings, because of an increase in the expression of peroxidase, catalase, vegetative storage protein and nitrite reductase genes [66]. Increased in tolerance to salinity in *A. thaliana* by downregulating the expression of *high-affinity K*+ *transporter 1* in roots and upregulation in shoots by the 2,3-Butanediol compound released by *B. subtilis* (Zhang *et al*. 2008). Acetoin released by *B. amyloliquefaciens* is able to increase tolerance against salinity in *M. piperita*, by increasing SA content [67].

