Physiological and Molecular Characterization of the Differential Response of Broccoli (Brassica oleracea var. Italica) Cultivars Reveals Limiting Factors for Broccoli Tolerance to Drought Stress

• DOI: 10.1021/acs.jafc.1c03421
• Publication Date: 2021-08-27T08:29:56Z
• Authors: Sergio Chevilly; Laura Dolz-Edo; José M. López-Nic...; Luna Morcillo; Alberto Vilagrosa; Lynne Yenush; José M. Mulet
• Keywords: Drought Tolerance; Allantoin

Broccoli is a cruciferous crop rich in health-promoting metabolites. Due to several factors, including anthropogenic global warming, aridity increasing many cultivation areas. There great demand characterize the drought response of broccoli and use this knowledge develop new cultivars able maintain yield under water constraints. The aim study at physiological molecular level different (Brassica oleracea L. var. Italica Plenck) cultivars, previously characterized as drought-sensitive or drought-tolerant. This approach aims identify traits, which can constitute limiting factors for stress tolerance broccoli. For purpose, we have compared parameters complete profiles amino acids, primary metabolites, hormones, ions drought-tolerant control conditions. We found that presented higher levels methionine abscisic acid lower amounts urea, quinic acid, gluconic lactone. Interestingly, also treatment increases most essential acids leaves florets. Our results established traits useful distinctive markers predict could be reliably used breeding adapted scarcity. content