Abstract:To determine whether root-supplied ABA alleviates saline stress, tomato
(Solanum lycopersicum L. cv. Sugar Drop) was grafted onto two
independent lines overexpressing the SlNCED1 (9-cis-epoxycarotenoid
dioxygenase) gene (NCED OE) and wild type rootstocks. After 200 days of
salinity irrigation (EC = 3.5 dS m-1), plants with NCED OE rootstocks
had 30% higher fruit yield, but root biomass and lateral root
development was reduced. Although NCED OE rootstocks upregulated
ABA-signalling (AREB, ATHB12), ethylene-rela… Show more
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