Salicylic acid regulates sugar metabolism that confers tolerance to salinity stress in cucumber seedlings

Expression of the 1-SST and 1-FFT genes and consequent fructan accumulation in Agave tequilana and A. inaequidens is differentially induced by diverse (a)biotic-stress related elicitors

“…This was due to the fact that the exogenous application of 8% Suc in the SUC treatment exceeded the threshold Suc concentration normally present in the MS media (3% Suc), required for the induced synthesis of fructans, which occurs through a cascade of events (Martinez-Noël et al, 2009;Ritsema et al, 2009;Joudi et al, 2012). Likewise, the potent inducing capacity of the SA treatment, at least at 1 mM, was also in agreement with several studies showing the positive effect that the exogenous application of this compound has on photosynthesis (Fariduddin et al, 2003;Khodary, 2004;Poór et al, 2011;Rivas San-Vicente and Plasencia, 2011), proteins and enzymes involved in plant carbohydrate/energy metabolism (Chan et al, 2008;Tarchevsky et al, 2010), particularly on sucrose phosphate synthase (SPS), the major enzyme involved in sucrose synthesis (Dong et al, 2011) and on favoring the accumulation of soluble sugars, especially of nonreducing sugars, in storage tissues such as roots (Dong et al, 2011). Data from wheat plants have suggested that Suc-elicited fructosyltransferase induction might involve the participation of protein kinases and phosphatases together with calcium and calciumdependent kinases (Martinez-Noël et al, 2001.…”

“…The inductive effect of ABA can be attributed to the intimate crosstalk of ABA and sugar signaling pathways (Dekkers et al, 2008;Bolouri Moghaddam and Van den Ende, 2012). In addition, the observed induction by ABA and PEG could be explained on the basis of the cumulative evidence showing the role played by fructans in the amelioration of salt and/or drought stress (Pilon-Smits et al, 1995;Dong et al, 2011;Garcia et al, 2011) together with the reported inducing effect of drought conditions on fructan accumulation and the 1-SST enzyme . On the other hand, the observed accumulation of low DP FOS in the treatment with high concentration of ABA in stem and leaf tissue of A. inaequidens was probably due to the stimulation of FEHs and invertases (Yang et al, 2004).…”

Dimethoate modifies enhanced UV-B effects on growth, photosynthesis and oxidative stress in mung bean (Vigna radiata L.) seedlings: Implication of salicylic acid

“…Besides biotic responses, SA is also known to be involved in abiotic stress signaling. Studies showed that SA can mitigate adverse effects of ranges of abiotic stresses such as heavy metals [23][24][25][26]; UV-B [5], salinity [27] and drought [28]. Under stress, the exact mechanisms of SA signaling and subsequent physiological and biochemical responses are still not known.…”

Enhancing the Salt Tolerance Potential of Watermelon (<i>Citrullus lanatus</i>) by Exogenous Application of Salicylic Acid

“…It has ability to act as osmotic adjustors and metabolic signals in the establishment of plant defense responses. It alleviated the drastic effect of salt stress in cucumber [8].…”