Effect of pre-storage treatment with a nitric oxide donor on the postharvest quality of cherry fruits

BUET AGUSTINA; MORELL MALENA; SPERA NAZARENA; COLAVITA GRACIELA

Santa Fe

Congreso; XXXIII Reunión Argentina de Fisiología Vegetal; 2021

Sociedad Argentina de Fisiología Vegetal

Effect of pre-storage treatment with a nitric oxide (NO) donor on the postharvest quality of cherry fruitsAgustina Buet12, Malena Morell1, Nazarena Spera1, Laura Vita1, Graciela Colavita1 and Andrea Galatro21Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología del Comahue, Facultad de Ciencias Agrarias (UNCOMA)-CONICET.2Instituto de Fisiología Vegetal, Facultad de Ciencias Agrarias y Forestales (UNLP)-CONICET.It has been reported that NO has a positive effect on fruits quality during postharvest storage. In this work, we analyzed the effect of pre-storage treatment with S-nitrosoglutathione (GSNO), a NO donor, on the quality of cherry (Prunus avium) var. Lapins during postharvest storage at two different conditions. Cherry fruits were treated by immersion in 0, 0.1 and 0.5 mM GSNO for 5 min. The treated fruits were packed in bags and boxes and kept in cold chamber (0.5°C) and in fridge (4-8°C). Fruits samples were collected every ten days up to fifty days and quality traits were analyzed. After thirty days of storage, treatment with GSNO 0.1mM led to a lesser loss of fruit firmness and higher a* and chroma values of skin color when fruits were kept in fridge. When kept in cold chamber, GSNO treated fruits showed higher fruit firmness than control fruits. The results as a whole show that exogenous NO led to a lesser loss of fruit firmness and had a positive effect on skin color changes, being more relevant in fruits stored in the fridge. These results suggest that exogenous NO treatment could protect cherry fruits facing challenging conditions, in sub-optimal storage conditions (such as fruits kept al 4-8°C).