Exogenous jasmonic acid can enhance tolerance of wheat seedlings to salt stress

Foliar application of methyl jasmonate induced physio-hormonal changes in Pisum sativum under diverse temperature regimes

“…One possible explanation may be the use of very low concentrations of JA in those experiments, which can ultimately increase water and nutrient uptake (Kovac and Ravnikar, 1994). The stress-mitigation and plant-growth-promoting effects of MeJA at very low concentrations, with or without various stresses such as drought and chilling, have been reported by Kovac and Ravnikar (1994), Lee et al (1996), , and Qiu et al (2014), in wheat, cucumber, rice, and potato. JA application inhibits plant growth rapidly, but it has a delayed transient effect on photosynthesis (Attaran et al, 2014).…”

Jasmonate complements the function of Arabidopsis lipoxygenase3 in salinity stress response

“…Exogenous JA is able to enhance salt tolerance in wheat, pea and other plants [1,21], suggesting its role in improvement of plant adaption to salt stress. In our current work, we characterized the function of Arabidopsis LOX3, a component in JA synthesis pathway, providing further evidence for the relationship between JA and salt stress tolerance.…”

Crescimento radicular e pigmentos clorofilianos em duas forrageiras submetidas a níveis crescentes de NaCl

“…Vários processos bioquímicos e fisiológicos são desencadeados em plantas sob estresse salino, interferindo no crescimento da parte aérea e das raízes, comportamento estomático e capacidade fotossintética (Nunkaewa et al, 2014), resultantes dos efeitos osmóticos dos sais e das características especificas dos íons Na + e Cl - (Nobre et al, 2010;Graciano et al, 2011). O estresse salino promove a inibição da enzima clorofilase, o que acarreta diminuição dos teores de clorofila e de seu precursor, o ácido 5-aminolevulinato (Santos, 2004;Qiu et al, 2014).…”

“…De fato, estudos dessa natureza podem ser esclarecedores, pois NaCl em excesso diminui de forma significativa altura, fitomassa aérea e radicular, teores de clorofilas, enzimas antioxidantes, além de elevar a produção de espécies reativas de oxigênio e a concentração de malondialdeído em plantas (Qiu et al, 2014).…”