Is the application of arbuscular mycorrhizal fungi an alternative to increase foliar phenolic compounds in seedlings of Mimosa tenuiflora (Wild.) Poir., Mimosoideae?

Abstract

The legume Mimosa tenuiflora (Wild) Poir occurs in the ''Caatinga'' and is used as a popular remedy because of its medicinal properties related to the presence of secondary compounds in several parts of the plant. The arbuscular mycorrhizal fungi (AMF) are associated with most legumes, including M. tenuiflora, benefiting the growing process and the production of secondary compounds; however, the production of phytochemicals in response to AMF inoculation has not been defined yet. The aim of this study was to evaluate the influence of AMF on the production of phenolic compounds in the aerial part of M. tenuiflora. We analyzed the following parameters: height, stem diameter, number of leaves, fresh matter from the aerial part, dry matter from the aerial part, mycorrhizal colonization, soluble carbohydrates, total proteins, total phenols, total flavonoids, and total tannins. The mycorrhizal association did not benefit the growing process and/or the production of secondary compounds, demonstrating that mycorrhizal technology is not always an alternative to increase the production of plant secondary metabolism molecules. This study is the first report on the results of the inefficiency of mycorrhizal symbiosis regarding the optimization of phenolic compounds in plants of the ''Caatinga''.

Production of biomolecules of interest to the anxiolytic herbal medicine industry in yellow passionfruit leaves (Passiflora edulis f. flavicarpa) promoted by mycorrhizal inoculation

“…In contrast, the production of phenols and total proanthocyanidins in the leaves of yellow passionfruit associated with A. longula did not differ from the control without inoculation. When working with Mimosa tenuiflora , Silva and Silva reported that the inoculation with AMF did not enhance the production of any biomolecule in the leaf assessed.…”

Arbuscular mycorrhizal fungi and coconut coir dust application enhance the production of foliar secondary metabolites in Passiflora cincinnata Mast. seedlings

“…It is worth mentioning that phenolic compounds may grant pharmacological properties 37 . In contrast, divergent results were found by Silva and Silva, 38 since the mycorrhization did not favor the production of biomolecules in Mimosa tenuiflora (Willd.) Poiret.…”

Tecnologia Micorrízica Como Bioinsumo Para Produção De Compostos Fenólicos De Importância À Indústria De Fitomedicamentos

“…Mycorrhizal H. perforatum had lower flower numbers and stem diameter than non-inoculated plants (Lazzara et al, 2017). Silva and Silva (2017) also documented that mycorrhization did not benefit primary and secondary metabolism production and the growth of Mimosa tenuiflora (Wild)…”