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Ethylene triggers salt tolerance in maize genotypes by modulating polyamine cat...
Freitas, Valdineia Soares; Miranda, Rafael de Souza; Costa, José Hélio; Oliveira, Daniel Farias de; Paula, Stelamaris de OliveiraThe current study was undertaken to investigate if there is a relationship between metabolisms of ethylene and polyamines in the processes of salinity acclimation of salt-tolerant and salt-sensitive maize genotypes. Biphasic ethylene production (at 5.5 and 12.5 h) was registered only in salt-sensitive plants during NaCl exposure. In the salt-tolerant genotype, the unique ethylene peak at 5.5 h was closely relat...
Salt tolerance is unrelated to carbohydrate metabolism in cowpea cultivars
Praxedes, Sidney Carlos; Lacerda, Claudivan Feitosa de; Ferreira, Thalita Montoril; Prisco, José Tarquinio; DaMatta, Fábio Murilo; Gomes-Filho, EnéasUnder salinity stress, plants commonly accumulate carbohydrates for osmotic adjustment to balance the excess accumulated ions and to protect biomolecules. We selected two cowpea cultivars with contrasting response to salinity, Pitiúba (salt-tolerant) and TVu (salt-sensitive), to investigate whether the salt tolerance could be associated with changes in carbohydrate accumulation and metabolism in leaves and root...
Growth and ion accumulation in dwarf cashew plants at different times of salini...
Freitas, Valdineia Soares; Marques, Elton Camelo; Bezerra, Marlos Alves; Prisco, José Tarquinio; Gomes-Filho, EnéasThis work aimed to evaluate the influence of salt stress exposition on growth and ion accumulation in dwarf cashew plants. For this purpose, cashew nuts (CCP 06 clone) were sown in plastic trays containing vermiculite moistened with nutrient solution containing NaCl with electrical conductivities ranging from 0.0 to 18.0 dS m-1. Plants were harvested after 30 and 60 days under salt stress. It was determined the...