Salicylic acid regulates secondary metabolites content in leaves of Matricaria chamomilla

Abstract

The influence of increasing doses of salicylic acid (SA) on selected physiological parameters and the content of coumarin-related compounds of diploid and tetraploid cultivars of Matricaria chamomilla plants were studied. Forty-eight hours after treatment SA showed growth-promoting effect with decrease in tissue water content, chlorophylls and soluble proteins. High doses of SA led to an increase of reactive oxygen species (hydrogen peroxide and superoxide radical) resulted in membrane damage (measured by accumulation of malondialdehyde). Changes in secondary metabolites accumulation in leaves were also observed. The pattern of quantitative changes of studied compounds was similar in tetraploid and diploid plants. The content of herniarin and its precursor (Z )-and (E )-2-β-D-glucopyranosyloxy-4-methoxycinnamic acid increased simultaneously. A considerable increase of umbelliferone and decrease in chlorogenic acid was registered. The rise of ene-yne-dicycloether in treated plant was also detected.

Short versus prolonged freezing differentially impacts freeze – thaw injury in spinach leaves: mechanistic insights through metabolite profiling

“…valine, leucine, isoleucine and phenylalanine) in these tissues (Fig. B) could facilitate SA‐induced defense system since these are precursors for various secondary metabolites involved in plant defense mechanism, especially pathogens (Bennett and Wallsgrove , Vetter , Dixon , Dučaiová et al , Hildebrandt et al ). Plant tissues injured by freeze–thaw can become an infection court for pathogens during the post‐thaw, and therefore, activation of such defense could be beneficial to plant survival, especially when only moderately injured.…”

Accumulation of madecassoside - a major component of centelloside - in centella (Centella asiatica (L.) Urban) cells elicited by salicylic acid

“…According to Dučaiová et al (18), SA is considered a potent phytohormone because of its key regulatory roles in plant metabolism. It is also a signalling molecule in the signal transduction systems, stimulating the biosynthesis of special enzymes for reactions forming defense compounds such as terpenoids (including triterpene saponins), phenols, alkaloids or pathogenesis-related proteins (19,20).…”

Elicitation, an Effective Strategy for the Biotechnological Production of Bioactive High-Added Value Compounds in Plant Cell Factories

“…During the plant-pathogen interaction, a rapid SA accumulation in the infection site triggers a hypersensitive response. The signal then spreads to other parts of the plant to induce a wide range of defense responses [36], including the production of PSM, which is why SA is widely applied as a secondary metabolism elicitor [19,71]. Nevertheless, SA is not a global elicitor, and induces only certain classes of PSM [36].…”