Arbuscular mycorrhizal fungi regulate the oxidative system, hormones and ionic equilibrium to trigger salt stress tolerance in Cucumis sativus L

Saudi Journal of Biological Sciences
Abeer HashemE F Abd Allah

Abstract

Arbuscular mycorrhizal fungi (AMF) association increases plant stress tolerance. This study aimed to determine the mitigation effect of AMF on the growth and metabolic changes of cucumbers under adverse impact of salt stress. Salinity reduced the water content and synthesis of pigments. However, AMF inoculation ameliorated negative effects by enhancing the biomass, synthesis of pigments, activity of antioxidant enzymes, including superoxide dismutase, catalase, ascorbate peroxidase and glutathione reductase, and the content of ascorbic acid, which might be the result of lower level lipid peroxidation and electrolyte leakage. An accumulation of phenols and proline in AMF-inoculated plants also mediated the elimination of superoxide radicals. In addition, jasmonic acid, salicylic acid and several important mineral elements (K, Ca, Mg, Zn, Fe, Mn and Cu) were enhanced with significant reductions in the uptake of deleterious ions like Na+. These results suggested that AMF can protect cucumber growth from salt stress.

Citations

Mar 5, 2020·Environmental Science and Pollution Research International·Peng GaoDongwei Dai
Oct 13, 2020·International Journal of Phytoremediation·Ritu ChaturvediManoj S Paul
Dec 29, 2020·Frontiers in Plant Science·Khondoker M G DastogeerShin Okazaki
Feb 23, 2021·Saudi Journal of Biological Sciences·Gurdeep Singh MalhiParvaiz Ahmad
Apr 24, 2021·Bulletin of Environmental Contamination and Toxicology·Jorge M S FariaMário Carvalho

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Methods Mentioned

BETA
MDA
salt stress
AsA

Software Mentioned

SPSS

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