The interaction between arbuscular mycorrhizal fungi and Piriformospora indica improves the growth and nutrient uptake in micropropagation-derived pineapple plantlets

Effect of Inoculation of Pineapple Plantlets with Arbuscular Mycorrhizal Fungi Obtained from Different Inoculum Sources Multiplied by the On-Farm Method

“…Therefore, it was expected that, in the current experiment, the obtained mixed inoculum of a pineapple plantation and multiplication on-farm would produce better results for colonization and seedling growth compared to the other treatments, as found in previous studies (Moreira et al, 2015(Moreira et al, , 2016. However, after 180 days of cultivation, there was high mycorrhizal colonization, supporting data from previous experiments, where plants were grown for 210 (Moreira et al, 2015) and 230 days (Moreira et al, 2016) in the greenhouse.…”

“…Pineapple seedlings inoculated with AMF have higher growth and better nutritional status that seedlings not colonized by these fungi (Rodríguez-Romero et al, 2011;Moreira et al, 2015). These benefits were observed in pineapple plantlets that grow larger with greater nutrient absorption, even when plants were grown with high doses of P (Moreira et al, Figure 4.…”

“…In many situations, plants might be colonized by different taxa of AMF simultaneously (Smith et al, 2011). Previous experiments on pineapple plantlets colonized with one AMF species versus multiple AMF species simultaneously showed that seedlings receiving mixed inoculum were superior for almost all parameters (including growth, nutrient absorption efficiency, photosynthetic production, and antioxidant enzymes), regardless of P level in the soil or cultivating analyzed (Moreira et al, 2015(Moreira et al, , 2016. Thus, the production of inoculum on-farm could obtain similar results because non-sterile soil is used, resulting in highly taxonomically diverse inocula (Douds Jr et al, 2006;Schlemper and Stürmer, 2014).…”

“…The production of pineapple plantlets [Ananas comosus (L.) Merril] inoculated with AMF at the acclimatization stage improves the growth and nutrient uptake by the plants, especially under conditions with low P levels (Moreira et al, 2015). This approach also enhances the activity of various antioxidant enzymes responsible for ensuring greater resistance to pathogens (Moreira et al, 2016).…”

Effect of arbuscular mycorrhizal fungi on survival and growth of micropropagated Comanthera mucugensis spp. mucugensis (Eriocaulaceae)

“…Studies on the association of arbuscular mycorrhizal fungi (AMF) with some agronomic and ornamental plants demonstrate benefits of these microorganisms as plant growth regulators and their importance to management and acclimation (Rocha et al, 2006;Yadav et al, 2013;Moreira et al, 2015;Villarreal et al, 2016). Arbuscular mycorrhizal fungi (AMF) are an important microbial group of the soil, which form a mutualistic symbiosis with the roots of plants affecting several processes and functions in the ecosystem such as nutrient cycling, plant productivity and competition (Hazard et al, 2013).…”