Mycorrhizal fungi symbiosis as a strategy against oxidative stress in soybean plants

Colonization with arbuscular mycorrhizal fungus affects growth, drought tolerance and expression of stress-responsive genes in Poncirus trifoliata

“…In addition, a growing body of studies has demonstrated that AMF inoculation confers tolerance to either biotic or abiotic stress. So far, AM-induced tolerance has been shown to be involved in the enhanced tolerance to drought, high salinity, chemical pollution and oxidative stress, among others, in numerous plants (Bressano et al 2010;Debiane et al 2009;Latef and He 2011;Porras-Soriano et al 2009). The mechanisms underlying the protective roles of AM are ascribed to alleviation of oxidative stress (Debiane et al 2009;Bressano et al 2010;Latef and He 2011), stimulation of water uptake and/or nutrient absorption (Alvarez et al 2009;Cho et al 2009;Porras-Soriano et al 2009), modification of root system structure (Yao et al 2009) and change of transcript levels of genes involved in signaling pathway or stress response (Porcel et al 2006;López-Ráez et al 2010).…”

Comparative Studies Involving Transgenic and Non-Transgenic Soybean: What is Going On?

“…For example, soybean plants inoculated with arbuscular mycorrhizal (AM) fungi showed reduced MDA content and increased APX activity to the oxidative stress generated by paraquat (PQ) [52]. In another study, activities of SOD and peroxidase were increased in the shoots of soybean plants with mycorrhizal (M) fungi grown under NaCl salinity [53].…”

Future Prospects

“…Endophytic fungi live systemically within the aerial portion of many grass species and help in improving plant tolerance to biotic and abiotic stresses (Hildebrandt et al 2007 ;Lingua et al 2008 ;Soleimani et al 2010a ). These fungi reduce abiotic stress by regulating oxidative stress (by reducing the amount of malondialdehyde) (Bressano et al 2010 ). AMF are useful for phytoremediation, especially in metal-contaminated soils (Bressano et al 2010 ;Jiang et al 2008 ;Lingua et al 2008 ).…”

“…These fungi reduce abiotic stress by regulating oxidative stress (by reducing the amount of malondialdehyde) (Bressano et al 2010 ). AMF are useful for phytoremediation, especially in metal-contaminated soils (Bressano et al 2010 ;Jiang et al 2008 ;Lingua et al 2008 ). Mycorrhizal fungi in association with poplars are suitable for phytoremediation purposes (Lingua et al 2008 ).…”