Nitric oxide and hydrogen peroxide: Signals in fruit ripening

STEELHEART, CHARLOTTE; GALATRO, ANDREA; BARTOLI, CARLOS GUILLERMO; GERGOFF GROZEFF, GUSTAVO

Nitric oxide and hydrogen peroxide signaling in higher plants

Springer

Año: 2019;

Nitric oxide (NO) and hydrogen peroxide (H2O2) have profound effects in growth and development processes in plant physiology. Theyact as signal molecules under normal conditions or biotic and abiotic stress situations.Fruit ripening is a highly coordinated process that needs the control ofseveral biosynthetic pathways, including signal molecules such as NO and H2O2.On the other hand, enzymatic and non-enzymatic antioxidants act to maintain theequilibrium and to prevent oxidative stress. This forward look reviews therelationship between these two active species and their interplay with ethylenein climacteric and non-climacteric fruit ripening. Throughout we emphasize theinfluence of NO and H2O2crosstalk coupled to the hormonecontrol, chloroplast to chromoplast transition, and their implications inpostharvest technology.