Early cold stress responses in post-meiotic anthers from tolerant and sensitive rice cultivars

ROIG-VILLANOVA, IRMA; GONZÁLEZ-SCHAIN, NAHUEL; KATER, MARTIN M.

Rice

Springer

Año: 2019 vol. 12

1939-8425

Rice grain production is susceptible to a changing environment that imposes both biotic and abiotic stress conditions. Cold episodes are becoming more frequent in the last years and directly affect rice yield in areas with a temperate climate. Rice is particularly susceptible to cold stress during the reproductive phase, especially in anthers during post-meiotic stages which, in turn, affect pollen production. However, a number of rice cultivars with a certain degree of tolerance to cold have been described, which may represent a good breeding resource for improvement of susceptible commercial varieties. Plants experiencing cold stress activate a molecular response in order to reprogram many metabolic pathways to face these hostile conditions.