盐度
过氧化氢酶
脯氨酸
光合作用
化学
海水
丙二醛
绿豆
活性氧
食品科学
渗透调节剂
醋酸
毒性
抗氧化剂
生物
生物化学
氨基酸
生态学
有机化学
作者
Md. Mezanur Rahman,Mohammad Golam Mostofa,Md. Abiar Rahman,M.A.A.A.A. Islam,Sanjida Sultana Keya,Ashim Kumar Das,Md. Giashuddin Miah,A.Q.M. Robiul Kawser,S. M. Ahsan,Abeer Hashem,Baby Tabassum,Elsayed Fathi Abd Allah,Lam‐Son Phan Tran
标识
DOI:10.1038/s41598-019-51178-w
摘要
The current study sought the effective mitigation measure of seawater-induced damage to mung bean plants by exploring the potential roles of acetic acid (AA). Principal component analysis (PCA) revealed that foliar application of AA under control conditions improved mung bean growth, which was interlinked to enhanced levels of photosynthetic rate and pigments, improved water status and increased uptake of K+, in comparison with water-sprayed control. Mung bean plants exposed to salinity exhibited reduced growth and biomass production, which was emphatically correlated with increased accumulations of Na+, reactive oxygen species and malondialdehyde, and impaired photosynthesis, as evidenced by PCA and heatmap clustering. AA supplementation ameliorated the toxic effects of seawater, and improved the growth performance of salinity-exposed mung bean. AA potentiated several physio-biochemical mechanisms that were connected to increased uptake of Ca2+ and Mg2+, reduced accumulation of toxic Na+, improved water use efficiency, enhanced accumulations of proline, total free amino acids and soluble sugars, increased catalase activity, and heightened levels of phenolics and flavonoids. Collectively, our results provided new insights into AA-mediated protective mechanisms against salinity in mung bean, thereby proposing AA as a potential and cost-effective chemical for the management of salt-induced toxicity in mung bean, and perhaps in other cash crops.
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