Effect of bioinoculants on the quality of crops

Soil microorganisms like arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR) are known to positively affect plant health, growth, and nutrition. Their use was often suggested in order to reduce the input of chemicals in agriculture. Recently, it has been observed that AMF and PGPR can also affect some quality features of various crops. In this chapter we review the literature concerning the effects of soil microbes, focusing on AMF and PGPR as the most common plant-associated microorganisms, on the quality of crops. Such effects were considered according to commercial and agronomic plant categories. Current limitations of the available information and some possible future developments have been indicated.