Analysis of the Qualitative and Quantitative Content of the Phenolic Compounds of Selected Moss Species under NaCl Stress

The response to salt stress analysed by quantitative and qualitative analyses in three selected moss species was studied. Non-halophytic funaroid Physcomitrium patens and two halophytic mosses, funaroid Entosthodon hungaricus and pottioid Hennediella heimii were exposed to salt stress under controlled in vitro conditions. The results clearly showed various phenolics to be present and included to some extent as a non-enzymatic component of oxidative, i.e., salt stress. The common pattern of responses characteristic of phenolic compounds was not present in these moss species, but in all three species the role of phenolics to stress tolerance was documented. The phenolic p-coumaric acid detected in all three species is assumed to be a common phenolic included in the antioxidative response and salt-stress tolerance. Although the stress response in each species also included other phenolics, the mechanisms were different, and also dependent on the stress intensity and duration.

Automated summary

The response to salt stress in three selected moss species was analyzed using quantitative and qualitative analyses. Non-halophytic moss species Physcomitrium patens and two halophytic moss species Entosthodon hungaricus and Hennediella heimii were exposed to salt stress under controlled in vitro conditions. The presence and role of phenolic compounds in oxidative stress caused by salt stress were studied, and it was found that phenolic p-coumaric acid played a common role in antioxidative response and salt-stress tolerance in all three species.