5 documents found, page 1 of 1
Avaliação citoquímica durante a germinação de sementes de sorgo envelhecidas ar...
Oliveira, Alexandre Bosco de; Alencar, Nara Lídia Mendes; Gallão, Maria Izabel; Gomes Filho, EnéasThe aim of this study was to evaluate the rate of water absorption and cytochemical changes in primed and aged seeds of sorghum during germination under absence or presence of 100 mM NaCl. The initial batch of seeds of sorghum cv. IPA-1011, was divided into two batches of different levels of vigor, by the accelerated aging of half seeds, with half of each batch also referred to the priming of polyethylene glyco...
Sodium uptake and transport regulation, and photosynthetic efficiency maintenan...
Gadelha, Cibelle Gomes; Coutinho, Ítalo Antônio Cotta; Pinheiro, Sergimar Kennedy de Paiva; Miguel, Emilio de Castro; Carvalho, Humberto Henrique deRice (Oryza sativa L.) is among the most consumed cereals in the world. Its growth is severely affected by excessive salinity, leading to considerable negative economic impacts. Thus, BRS Esmeralda and Sao ˜ Francisco rice cultivars, presenting antagonist cultivation recommendations and differential salt tolerance, were selected to examine how salt stress influences ionic homeostasis and photosynthetic capacity...
H2O2 priming promotes salt tolerance in maize by protecting chloroplasts ultras...
Araújo, Gyedre dos Santos; Paula Marinho, Stelamaris de Oliveira; Pinheiro, Sergimar Kennedy de Paiva; Miguel, Emilio de Castro; Lopes, Lineker de SousaHydrogen peroxide priming has emerged as a powerful strategy to trigger multiple responses involved in plant acclimation that reinforce tolerance to abiotic stresses, including salt stress. Thus, this study aimed to investigate the impact of foliar H2O2 priming on the physiological, biochemical, and ultrastructural traits related to photosynthesis of salt-stressed plants. Besides, we provided comparative leaf m...
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...
Optimized acid hydrolysis of the polysaccharides from the seaweed Solieria fili...
Castro, George Meredite Cunha de; Benevides, Norma Maria Barros; Cabral, Maulori Curié; Miranda, Rafael de Souza; Gomes Filho, EnéasThe seaweeds are bio-resource rich in sulfated and neutral polysaccharides. The tropical seaweed species used in this study (Solieria filiformis), after dried, shows 65.8% (w/w) carbohydrate, 9.6% (w/w) protein, 1.7% (w/w) lipid, 7.0% (w/w) moisture and 15.9% (w/w) ash. The dried seaweed was easily hydrolyzed under mild conditions (0.5 M sulfuric acid, 20 min.), generating fermentable monosaccharides with a ma...