The role of arbuscular mycorrhizal fungi and glomalin in soil aggregation: comparing effects of five plant species

By Matthias C. Rillig, S. Wright, V. Eviner. Plant and Soil, 2002

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Mycorrhizas and tropical soil fertility (2006, background): “The mechanism is the formation of a ‘sticky’ string-bag of hyphae (Jastrow and Miller, 1997; Rillig et al., 2002), which leads to the stability of aggregates.”
Effects of tillage systems on soil characteristics, glomalin and mycorrhizal propagules in a Chilean Ultisol (2006, background): “The improvement in aggregate stability is due to a physical effect of a network around soil particles, together with the hyphal production of significant amounts of an insoluble glycoprotein named glomalin (Wright and Upadhyaya, 1996), which cements soil components (Wright and Upadhyaya, 1998; Wrigh”
Characterization of glomalin as a hyphal wall component of arbuscular mycorrhizal fungi (2005, background): “While correlational evidence has accumulated concerning the role of GRSP in soil aggregation (Rillig et al., 2002), the function of glomalin in the biology and physiology of AMF themselves is not clearly understood.”
Root, mycorrhiza and earthworm interactions: their effects on soil structuring processes, plant and soil nutrient concentration and plant biomass (2009, result): “This is in contradiction with previous studies that showed improved soil stability with AM fungi colonization due, for example, to glomalin-related soil protein (GRSP) (Rillig et al. 2002).”
Disentangling the impact of AM fungi versus roots on soil structure and water transport (2008, background): “AM fungi in particular are thought to produce extracellular compounds such as glomalin related soil protein (GRSP), which has been shown to increase the physical stability of soil (Wright and Upadhyaya 1998; Wright et al. 1999; Wright and Anderson 2000; Rillig et al. 2002).”
Agroecology: the key role of arbuscular mycorrhizas in ecosystem services (2010, background): “This network can make up to 50% of fungal mycelium in soil (Rillig et al. 2002) thereby representing a major part of the soil microbial biomass (Leake et al. 2004).”
Soil available phosphorus status determines indigenous mycorrhizal colonization of field and glasshouse-grown spring wheat from Argentina (2007, background): “In spite of increases in host plant nutrition by mycorrhiza, hyphae of AMF are considered to be primary soil aggregators, because the extraradical hyphae of AMF have significant biomass in most soils (Rillig et al., 2002).”
Occurrence of arbuscular mycorrhizal fungi in mining-impacted sites and their contribution to ecological restoration: Mechanisms and applications (2017, background): “Plant species, root length, and percent cover also contribute strongly to water-stable aggregation (Rillig et al., 2002).”
Cyanobacterial inoculation elicits plant defense response and enhanced Zn mobilization in maize hybrids (2015, background): “GRSPs or BRSPs are known to contribute towards the aggregation and sequestration of organic matter, however, their origin and chemical composition has been a controversial area of microbiology (Rillig et al., 2002).”
Community shifts and carbon translocation within metabolically-active rhizosphere microorganisms in grasslands under elevated CO 2 (2007, background): “This fungal stimulation could be beneficial for ecosystem functioning as fungi are believed to play a positive role in soil structural stabilization (Bossuyt et al., 2001; Rillig et al., 2002), C sequestration (Treseder and Allen, 2000; Bailey et al.”