Earthworm Aporrectodea trapezoides had no effect on the dispersal of a vesicular-arbuscular mycorrhizal fungi, Glomus intraradices

Earthworm invasions of ecosystems devoid of earthworms: effects on soil microbes

“…The importance of the integrity of the hyphal links between parts of a fungal mycelium has led to much speculation about the potential effects of earthworm disturbance on fungi (e.g. Pattinson et al 1997;McLean and Parkinson 2000;Lawrence et al 2003).…”

“…The presence of earthworms may increase (Patron et al 1999;Brown et al 2000), decrease (Pattinson et al 1997;Brown et al 2000) or not affect (Wurst et al 2004) AM colonization. Positive effects of earthworms on mycorrhizal colonization may occur in poor soils where earthworm activities increase nutrient availability.…”

Effects of epigeic earthworm (Eisenia fetida) and arbuscular mycorrhizal fungus (Glomus intraradices) on enzyme activities of a sterilized soil–sand mixture and nutrient uptake by maize

“…Positive (Cheng et al 2005(Cheng et al , 2006Zarea et al 2009), negative (Gormsen et al 2004;Pattinson et al 1997;Welke and Parkinson 2003), and neutral (Eisenhaller et al 2009;Ma et al 2006;Wurst et al 2004) effects of earthworms on AM root colonization have been reported. Our results suggested that epigeic earthworms increased colonization rate and hyphae frequency on maize roots and HLD in the rhizosphere soil-sand mixture treated with wheat straw.…”

“…It has been reported that earthworms can produce phytohormones stimulating mycorrhizal infections (Azcón et al 1978). Unlike endogeic or anecic earthworms, epigeic earthworms live above the surface of soil mineral particles and form little burrows (Edwards and Fletcher 1988;Römbke et al 2005;Scheu 1987), and this can reduce their negative effect on mycorrhizal colonization (Pattinson et al 1997;Scheu 2003;Welke and Parkinson 2003). Alternatively, wheat straw may provide substrates to epigeic earthworms, minimizing potential damages to fungal hyphae (Li et al 2012).…”

Interactive impacts of earthworms (Eisenia fetida) and arbuscular mycorrhizal fungi (Funneliformis mosseae) on the bioavailability of calcium phosphates

“…Previous studies showed inconsistent results about the interactions of earthworm and mycorrhizal. Neutral (e.g., Wurst et al 2004;Eisenhaue et al 2009), positive (e.g., Cheng et al 2006;Zarea et al 2009), and negative (e.g., Pattinson et al 1997;Gormsen et al 2004) responses in AM root colonization as a result of earthworm activities have all been reported. Earthworms had a positive effect on AM fungal colonization of roots when velvetbean (Mucuna pruriens var.…”