Physiological responses of mycorrhizal symbiosis to drought stress in white clover

The aim of the present study was to analyze effects two arbuscular mycorrhizal fungi (AMF), Funneliformis mosseae and Paraglomus occultum, on leaf water status, root morphology, sugar accumulation, abscisic acid (ABA) levels, malondialdehyde (MDA) content, antioxidant enzyme activities in white clover (Trifolium repens L.) exposed well-watered (WW) drought stress (DS) conditions. results showed that colonization by F. P. occultum significantly decreased 7-week soil treatment. Under conditions, fungal treatment considerably stimulated total length, surface area volume, as compared with non-mycorrhizal controls. In addition, inoculation also increased relative content accelerated accumulation glucose fructose under stress. Mycorrhizal plants registered higher superoxide dismutase (SOD), catalase (CAT), peroxidase (POD) ABA levels roots, while lower MDA contents, plants. As a result, mycorrhiza-inoculated represented better physiological (e.g. defense systems, accumulation) than non-inoculated response drought, whilst had superior mosseae.