Physalis peruviana is one of the most promising tropical fruit plants because of its rapid
growth, high yield, and nutritional quality. Th is study was designed to investigate plant
development under heavy metal contamination (Cd, Pb) and responsiveness to arbuscular
mycorrhizal fungi (AMF) colonization by Rhizophagus clarum and Claroideoglomus claroideum.
Th e antioxidant capacity, total lipid content and fatty acid profi le in fruits, accumulation
of Cd and Pb in diff erent plant parts, plant dry biomass, and mycorrhizal colonization
were determined. As a result of inoculation, a considerable reduction in Cd and Pb in
the fruits was observed, compared with non-inoculated plants. Th e fruit number and dry
weight increased in plants associated with C. claroideum. Th ese plants also showed higher
acid phosphatase activity, root protein accumulation and glomalin production. Th e type of
antioxidant defense was AMF strain-dependent. Antioxidant activity and H2O2 neutralization
were enzymatic rather than non-enzymatic processes in the fruits of C. claroideum
plants compared with those forming an association with R. clarum. Mycorrhizal establishment
changed the composition and concentration of fruits’ fatty acids. Th e ratio of unsaturated
fatty acids was increased. With respect to the accumulation of bioactive compounds
in golden berry the present fi ndings are important for obtaining the optimum benefi ts of
mycorrhizal association under unfavorable conditions.
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