Journal of Plant Biochemistry & Physiology
Open Access
ISSN: 2329-9029
+44 1478 350008
ISSN: 2329-9029
+44 1478 350008
Elisa Pellegrino, Valentina Ciccolini and Laura Ercoli
Sant Anna School of Advanced Studies, Italy
Posters & Accepted Abstracts: J Plant Biochem Physiol
Production of cereals and pseudo cereals often leads to Fe, Zn and antioxidant deficiency. A better understanding of the potential of field inoculation with arbuscular mycorrhizal fungal (AMF) to increase micronutrient uptake and production of secondary metabolites is needed. We investigated by multi-year field experiments (2013-2017) located in central Italy the role of AMF inoculation in Fe-Zn uptake and biosynthesis of antioxidants in cereals (bread wheat, durum wheat and millet) and in pseudo cereals (buckwheat). The effects of AMF inoculation by Rhizophagus irregularis, plant genotypes and several agronomic techniques were investigated. AMF inoculum effectiveness was assessed on concentration of Fe-Zn and antioxidant compounds in grain and transformed products. Occurrence of AMF in roots was assessed using morphological and molecular techniques. In 2014 trial, Fe-Zn grain concentrations were increased by AMF inoculation in durum wheat (53% and 89%) and bread wheat (61% and 90%). Increase in AMF root colonization (durum wheat: 22%; bread wheat: 30%) and modifications in root abundance of AMF sequences, belonging to genera Rhizophagus and Funneliformis were reported. In 2015, 2016 and 2017 trials, wheat genotypes differently responded to AMF inoculation for Fe-Zn concentrations (Fe: -26% �?? 113%; Zn: -22% �?? 98%), for flavonoids (-29% �?? 196%), for α-lipoic acid (-28% �?? 199%), for rutin (3% �?? 27%) and for quercetin (0.9% �?? 5.2) in whole meal flour and transformed products. In 2016 trial, millet and buck wheat genotypes showed a wide range of variation in AMF root colonization. AMF inoculation represents an agronomic tool to increase food Fe-Zn concentrations and antioxidant compounds.
E-mail: elisa.pellegrino@santannapisa.it