Arbuscular mycorrhizal fungi promote the growth of Dipteryx alata Vogel

Abstract

The symbiosis between arbuscular mycorrhizal fungi (AMF) and fruit tree plants is a sustainable strategy for producing seedlings. However, information for Dipteryx alata Vogel., a native species, is still scarce. Thus, this study aimed to identify the most promising AMF inoculum for producing D. alata seedlings and their effects on growth. Seedlings were inoculated with Clareoideoglomus etunicatum, Gigaspora albida, Gigaspora margarita, a mixture of these three species, and an uninoculated control. Height, diameter, and chlorophyll index were evaluated at 30, 60, 90, 120, 150, and 180 days after seedling transplanting, while biomass production, quality index, dependence, and mycorrhizal efficiency were evaluated at 180 days. Greater diameter and height values were observed for D. alata seedlings at 180 days and inoculated with G. albida, G. margarita, and the mixture. AMF of the genus Gigaspora positively contributed to biomass production and seedling quality. D. alata seedlings show high mycorrhizal dependence on G. albida and G. margarita inoculum, which had good mycorrhizal efficiency. AMF, especially those of the genus Gigaspora, favor the production of high-quality D. alata seedlings.

Arbuscular mycorrhizal fungi affect early phenological stages of three secondary vegetation species in a temperate forest

“…It has been shown that AMF inoculation signi cantly enhances seedling growth, biomass, nutrient uptake and improves biomass partitioning (Souza et al 2023;Tian 2023;Yang et al 2024). In this study, the greatest stem length observed in Solanum pubigerum treated with AMF, together with the most notable response in total dry weight in Acaena elongata and Ageratina glabrata, indicates the role of AMF in resource allocation to vegetative structures.…”

“…The AMF are known to favor the germination and growth of their host plants (Sortibrán et al 2018;Souza et al 2023; Tian et al 2023;Yang et al 2024). The nutrient requirements of plants differ at early phenological stages due to the adaptive dynamics of their physiological and metabolic processes (Milla et al 2009).…”