Arbuscular Mycorrhizal Fungi Associated with Bamboo Under Cerrado Brazilian Vegetation

Abstract

Most studies on bamboo have evaluated their commercial use but few have investigated their associated arbuscular mycorrhizal fungi (AMF). These symbiont fungi are fundamental on plant growth, nutrient cycling, biodiversity maintenance, etc., particularly on acidic/dystrophic soils as those of the Brazilian Cerrado. This study aimed to characterize the community composition and ecological interactions of AMF associated with the bamboo species Actinocladum verticillatum and Bambusa vulgaris vittata, under Cerrado vegetation in central Brazil. Roots and rhizospheric soil samples of A. verticillatum and B. vulgaris vittata were collected on 12 plots in the Gurupi (Tocantis state) and Porangatu (Goiás state) microregions. The roots' mycorrhizal colonization rate, rhizospheric soil' spore density, and the associated AMF genera were evaluated. There were no differences in the radical mycorrhizal colonization rates among the two bamboo species, although B. vulgaris vittata showed higher spore density than A. verticillatum. The genera Acaulospora, Claroideglomus, Diversispora, Scutellospora, Glomus, and Gigaspora were identified in both bamboo species, while Sclerocystis was present only on A. verticillatum. The genera Acaulospora, Diversispora, and Glomus were frequently found together. This study may be a first step to future AMF-based bamboo micropropagation efforts in the Cerrado Brazilian vegetation.

Mycorrhizal fungi arbuscular in forage grasses cultivated in Cerrado soil

“…Because it is the same soil, the variation in mycorrhizal colonization values is explained by the physiological differences of plants and not fungi. This behavior can be observed when comparing forage plants, such as Megathyrsus maximus and Brachiaria brizanta, which presented similar colonization rates, regardless of cultivar [38][39][40] . www.nature.com/scientificreports/ Table 2 shows the genera identified in the soil of the grasses investigated.…”

Arbuscular Mycorrhizal Association with Rattan Species of the Belum-Temengor Forest Complex, Perak, Malaysia

“…The AM symbiosis is believed to be fundamental for land colonisation by plants (Brundrett & Tedersoo, 2018). It is found in almost all plant species, including those with commercial value (de Moura et al, 2019). Furthermore, the AM fungi are the fungi from the phylum Glomeromycota, and they form a mutualistic symbiosis with the majority of vascular plants and some non-vascular plants (Peterson et al, 2004).…”

“…AM fungi play essential roles, and fundamental functions of several ecosystems (de Moura et al, 2019) processes ranging from maintaining plant biodiversity, plant development and growth, nutrient cycling, organic matter decomposition, absorption of water and nutrients, phosphate solubilisation, soil aggregation (Andrade Júnior et al, 2018;Silva-Flores et al, 2019;Wicaksono et al, 2018), and improving plant tolerance to different abiotic and biotic stresses (Ait-El-Mokhtar et al, 2019;Meddich et al, 2015). However, despite the contributions showed by AM fungi to plant communities, there is data paucity to elucidate rattans' ability to form a mutualistic symbiosis with AM fungi.…”