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Betaine Hydrochloride Treatment Affects Growth and Phenylpropanoid Accumulation in Tartary Buckwheat (Fagopyrum tataricum) Seedlings under Salt Stress
Agronomy ( IF 3.949 ) Pub Date : 2020-06-25 , DOI: 10.3390/agronomy10060906
Min Cheol Kim , Nam Su Kim , Yeon Bok Kim , Chul Min Kim , Yong Suk Chung , Sang Un Park

Betaine is one of the most competitive compounds that accumulate in different cellular compartments to adjust osmotic balance. Among the various stressors, salinity stress often leads to osmotic and ionic stress in plants, either increasing or decreasing certain secondary plant metabolites. In this study, different concentrations of NaCl, betaine, and combined NaCl and betaine were used in time-course experiments to investigate growth pattern variation and accumulation of phenylpropanoid compounds in buckwheat sprouts. A significant increase in growth was observed with the application of 0.1–1.0 mM betaine. Although overall, the total phenylpropanoid compounds were lower compared to the control, the sole application of 50 mM NaCl and 1.0 mM betaine especially enhanced the accumulation of some of these compounds in comparison to others. Betaine application at lower concentrations was found to enhance the growth of buckwheat sprouts slightly. The results of this study show that phenylpropanoid content did not increase significantly in any of the treatments. However, it was proven that the phenylpropanoid biosynthetic pathway is stimulated under abiotic stress, resulting in a higher accumulation of various phenylpropanoid compounds. This suggests that the level of accumulation of phenylpropanoid compounds due to abiotic stress may be species-dependent.

中文翻译:

盐胁迫下甜菜碱盐酸盐的处理影响Buck苦荞幼苗的生长和苯丙烷的积累

甜菜碱是最有竞争力的化合物之一,可在不同的细胞室中积累以调节渗透平衡。在各种胁迫中,盐分胁迫通常导致植物中的渗透胁迫和离子胁迫,增加或减少某些次生植物代谢产物。在这项研究中,在时程实验中使用了不同浓度的NaCl,甜菜碱以及NaCl和甜菜碱的组合,以研究荞麦芽中生长方式的变化和苯丙烷类化合物的积累。使用0.1–1.0 mM甜菜碱可观察到生长显着增加。尽管总的来说,总的苯丙烷化合物比对照组要低,但单独施用50 mM NaCl和1.0 mM甜菜碱与其他化合物相比尤其增加了其中一些化合物的积累。发现以较低浓度施用甜菜碱可略微促进荞麦芽的生长。这项研究的结果表明,在任何处理中,苯丙氨酸的含量均没有显着增加。然而,已证明在非生物胁迫下刺激了苯丙烷类生物合成途径,从而导致各种苯丙烷类化合物的更高积累。这表明由于非生物胁迫而引起的苯丙烷类化合物的积累水平可能与物种有关。导致各种苯基丙烷化合物的积累更高。这表明由于非生物胁迫而引起的苯丙烷类化合物的积累水平可能与物种有关。导致各种苯基丙烷化合物的积累更高。这表明由于非生物胁迫而引起的苯丙烷类化合物的积累水平可能与物种有关。
更新日期:2020-06-25
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