2018
DOI: 10.1007/s11105-018-1092-0
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Gamma-Aminobutyric Acid (GABA) Modulates Nitrate Concentrations and Metabolism in the Leaves of Pakchoi (Brassica campestris ssp. chinensis Makino) Treated with a Nitrogen-Rich Solution

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Cited by 16 publications
(10 citation statements)
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“…Other studies have reported similar effects of salinity or lower temperature on increased Glu accumulation [56]. The exogenous GABA may be absorbed directly by plants [5759], which then engaged in downstream metabolisms and were converted into other substances [16]. This may be the reason why endogenous GABA levels in GABA-treated plants was higher than untreated plants, although it appeared the highest value at the beginning, and gradually decreasing with the extension of time.…”
Section: Discussionmentioning
confidence: 93%
“…Other studies have reported similar effects of salinity or lower temperature on increased Glu accumulation [56]. The exogenous GABA may be absorbed directly by plants [5759], which then engaged in downstream metabolisms and were converted into other substances [16]. This may be the reason why endogenous GABA levels in GABA-treated plants was higher than untreated plants, although it appeared the highest value at the beginning, and gradually decreasing with the extension of time.…”
Section: Discussionmentioning
confidence: 93%
“…The improved salt tolerance due to GABA in plants is related to many physiological metabolic pathways, including the control of reactive oxygen species (ROS) accumulation in tomato [ 21 ], the regulation of redox balance and chlorophyll biosynthesis [ 22 ], the enabling of cytosolic K + retention and Na + exclusion in Arabidopsis [ 1 ] and the alteration of cell wall composition [ 13 ]. We previously reported that GABA synthesis and supplementation are crucial for enhancing salt tolerance by decreasing ROS generation and photosynthesis in tomato [ 23 ] and accelerating NO 3 − reduction and assimilation in pakchoi [ 24 ]. Although there are many physiological metabolic pathways involved in the GABA-related plant salt tolerance, the mechanism by which GABA improves plant salt tolerance has not been elucidated clearly.…”
Section: Introductionmentioning
confidence: 99%
“…For instance, GABA could regulate the nitrate concentration and metabolism in the leaves of Pakchoi (Brassica campestris ssp. chinensis Makino) (Li et al 2018). In the present study, different rice cultivars differed in their grain quality attributes, for example, significant influences in grains with chalkiness, chalkiness degree were observed under the GABA treatments, thereinto, down-regulation was noted in MX2, YX, and XY, but in YX and YG14, the two attributes were on the increase, while for protein, a substantial increase was observed in MX2 and BS whereas significant reduction was noted in XY and YG14 (Table 8).…”
Section: Discussionmentioning
confidence: 99%