Mycorrhizal Fungi (AMF) increase the content of biomolecules in leaves of Inga vera Willd. seedlings

Abstract

Ingazeira (Inga vera Willd.), a plant native to Brazil is commonly used by Brazilians for its medicinal properties and the value of its wood. Various plants with therapeutic properties and economic importance benefit from mycorrhizal inoculation, which produces larger quantities of therapeutic compounds. However, the effects of mycorrhizal inoculation on ingazeira have not yet been studied. The objective of this paper is to evaluate the effectiveness of arbuscular mycorrhizal fungi (AMF) on the growth of seedlings and production of primary and secondary metabolites, and to determine the total foliar antioxidant activity in ingazeira seedlings. Soilinoculum was applied to the root region of ingazeira plantlets, which were transplanted into sacs containing 1.2 kg of soil and 10 %

Arbuscular Mycorrhizal Fungi Increase the Phenolic Compounds Concentration in the Bark of the Stem of Libidibia Ferrea in Field Conditions

“…Other studies with legumes had also reported such benefit with the inoculated AMF favoring the increase of species and, in contrast with our study, producing more mycorrhizal structures than the control treatment [37]. However, in seedlings of Inga vera , legume occurring in the caatinga, mycorrhized with A. longula , G. albida , and C. etunicatum [38] as well as in inoculated L. ferrea established in the field [27], the inoculation with AMF did not result in difference in the root diameter in relation to the non-inoculated control. This benefit may be associated with the presence of arbuscules in the inoculated roots since such structure favors the exchange of nutrients in the roots [39], resulting in greater development.…”

“…Similar results had been reported regarding leaves of Pogostemon patchouli Pellet, inoculated with native fungi presenting increase in the concentration of flavonoids and tannins [11]; in roots of Glycyrrhiza glabra L. a legume species, mycorrhization also increased the concentration of these compounds [37]; the shoots of mycorrhized Viola tricolor L. presented an increase in the concentration of flavonoid and rutin in relation to the non-inoculated control [41]. Seedlings of native legume species of caatinga biome also presented an increase in the concentration and foliar content of flavonoids and tannins [38, 42]. …”

“…Other studies on legumes from the caatinga inoculated with AMF reported an increase in the foliar concentration of phenolic compounds [38, 42]. Seedlings of cebil ( Anadenanthera colubrina (Vell.)…”

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

“…The increase in the production of secondary compounds in plants may also have an influence on the presence of microorganisms, such as arbuscular mycorrhizal fungi (AMF) (Mandal et al 2015). These fungi are obligate biotrophs, belonging to the phylum Glomeromycota (Schübler et al 2001), having a symbiotic association with most of the terrestrial plant species, forming the mycorrhizal association (Smith and Read 2008), which influences the nutrition, physiology, and biochemistry of plants (Moreira and Siqueira 2002) therefore being able to increase the production of secondary compounds (Lima et al 2015;Oliveira et al 2015).…”

“…Tree legumes occurring in the Brazilian semi-arid region have recorded higher production of phenolic compounds (Pedone-Bonfim et al 2013, Silva et al 2014a, 2014bLima et al 2015;Oliveira et al 2015); however, for M. tenuiflora, ''jurema preta'' (Maia 2004), legume that forms mycorrhiza (Gattai et al 2011), no records have been found regarding the influence of these fungi on the increase of the production of foliar phenolic compounds.…”