Journal
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
Volume 27, Issue 9, Pages 729-735Publisher
UNIV FEDERAL CAMPINA GRANDE
DOI: 10.1590/1807-1929/agriambi.v27n9p729-735
Keywords
Coriandrum sativum L; reactive oxygen species; salt tolerance; hydroponic system
Categories
Ask authors/readers for more resources
Priming with hydrogen peroxide (H2O2) effectively attenuated the negative effects of salinity on coriander plants, resulting in improved salt tolerance. This was achieved by improving ion homeostasis through reducing Na+ and/or Cl- contents and increasing K+ content in leaves, as indicated by the multivariate analysis.
Priming with hydrogen peroxide (H2O2) contributes positively to the increase of salt tolerance in plants. Thus, this study aims to evaluate the effect of H2O2 as an attenuator of the negative effects induced by salinity on coriander plants grown in a hydroponic system. The coriander seeds were pretreated with different H2O2 concentrations (0.1, 1, 10, and 100 mM). The coriander plants were grown in nutrient solutions without presence of NaCl for control treatment (T1), while the other five treatments received 50 mM NaCl: T2 (absence of H2O2 in seed pretreatment), T3, T4, T5, and T6 corresponding to seed pretreatment with H2O2 at concentrations of 0.1, 1, 10, and 100 mM, respectively, in a completely randomized design with four replicates. In general, salinity reduced the production of shoot fresh and dry mass of coriander plants. However, the pretreatment with H2O2 significantly increased the salt tolerance of plants. H2O2 acted as a metabolic signal, improving the ion homeostasis by decreasing Na+ and/or Cl- contents and increasing K+ content in leaves. The multivariate analysis revealed an opposite effect between the Na+ and K+ contents, in addition, to indicating that these results can directly affect the growth of coriander plants.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available