Characterization of glomalin as a hyphal wall component of arbuscular mycorrhizal fungi

Driver, James D.; Holben, William E.; Rillig, Matthias C.

doi:10.1016/j.soilbio.2004.06.011

Cited by 384 publications

(201 citation statements)

References 21 publications

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“…Por el contrario, en un ultisol de un agroecosistema de la Región de la Araucanía con manejo conservacionista con rotación corta de trigo (Triticum aestivum L.) -avena (Avena sativa L.), la GT fluctúa entre 8,74 y 9,24 mg g -1 en los suelos superficiales mientras en profundidad el rango informado varía de 6,61 a 6,77 mg g -1 (Morales et al 2005). Estos antecedentes sugerirían que los niveles de glomalina en ecosistemas forestales serían superiores al de los agrosistemas, posiblemente debido al incremento en la velocidad de descomposición de los diversos propágulos de HMA presentes en los suelos bajo bosque, proceso responsable de la llegada de la glomalina a la fracción humina del suelo (Driver et al 2005). La mayor proporción de GFE en la ladera SO y el incremento de glomalina recalcitrante en NE, áreas que presentan una vegetación muy similar, mostraría el efecto neto de la exposición y la pendiente sobre las fracciones de glomalina.…”

Section: Resultsunclassified

Niveles de glomalina y su relación con características químicas y biológicas del suelo (andisol) en un relicto de bosque nativo del sur de Chile

et al. 2008

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Glomalina en bosque nativo BOSQUE 29(1): [11][12][13][14][15][16][17][18][19][20][21][22] 2008 ARTÍCULOS Niveles de glomalina y su relación con características químicas y biológicas del suelo (andisol) en un relicto de bosque nativo del sur de Chile SUMMARYIn forest ecosystems the arbuscular mycorrhizal fungi (AMF) play an important role in the carbon accumulation by a glicoprotein production named glomalin that participate in the soil aggregate stability. Therefore, the aim of this study was to quantify the glomalin content of an andisol of southern Chile under adult and mixed forest and to determine the relationships with fungal and soil chemical characteristics. The study was at two slopes and exposition (NE and SW). The forest vegetation was principally dominated by species that develop ectomycorrhiza, but the underforest species, shrubs and climbers, developed arbuscular mycorrhiza with high glomalin production capacity and with amounts higher than those determined in agroecosystems for the same area. Glomalin concentration in the upper horizon ranged between 44.2 and 46.1 mg g -1 representing between 8.9 and 10.4 % of the total soil carbon, decreasing their content as depth increased. The slope and exposition type influenced glomalin content both, total and easily extractable. Therefore, NE with smooth slope presented the major content of total glomalin, while SW with sharp slope showed high levels of easily extractable glomalin. Total glomalin showed close relationships with the spores AMF (r = 0.84, P < 0.001) and with soil organic matter (r = 0.83, P < 0.001). Data obtained in this study suggest that it is necessary to preserve the forest ecosystems for keeping up the mycorrhizal potential and reinforce the statement that glomalin can be an important carbon sink contributing to soil carbon retention.Key words: arbuscular mycorrhizal fungi, glomalin, carbon storage, andisol. RESUMENEn ecosistemas forestales, los hongos micorrícico-arbusculares (HMA) juegan un rol importante en la acumulación de carbono debido a la producción de una glicoproteína denominada glomalina que participa en la estabilidad de los agregados de suelo. Por lo tanto, el objetivo del estudio fue cuantificar el contenido de glomalina en un andisol del sur de Chile bajo bosque mixto adulto y estudiar las relaciones con características fúngicas y químicas del suelo, bajo dos pendientes y exposiciones (NE y SO). La vegetación forestal estuvo dominada principalmente por especies que forman ectomicorrizas, pero especies acompañantes, arbustos y trepadoras presentaron micorrizas arbusculares capaces de producir altos niveles de glomalina, superiores a los de agroecosistemas de la misma área. La concentración de glomalina en el suelo superior (0-10 cm) fluctuó entre 44,2 y 46,1 mg g -1 , representando entre 8,9 y 10,4% del carbono total del suelo, disminuyendo sus contenidos a mayor profundidad. Así, NE con inclinación suave presentó mayor contenido de glomalina total, mientras que SO, con pendiente abrupta, tuvo elevados niveles de gloma...

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Section: Resultsunclassified

Niveles de glomalina y su relación con características químicas y biológicas del suelo (andisol) en un relicto de bosque nativo del sur de Chile

et al. 2008

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“…GRSP is a glycoprotein produced primarily by arbuscular mycorrhizae (AM) (Buyer et al, 2011;Treseder and Turner, 2007). Glomalin is not exuded by AM hyphae, but is instead contained within hyphal walls (Driver et al, 2005). When the AM hyphae die and decompose, they are thought to leave a residue of glomalin in the soil (Treseder and Allen, 2000).…”

Section: Introductionmentioning

confidence: 99%

Biological and chemical factors controlling the patchy distribution of soil water repellency among plant species in a Mediterranean semiarid forest

et al. 2013

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Natural soil water repellency is a property that has already been observed in forest soils and is characterized by its patchydistribution. Ihere are many factors involved in its development. In this work, we have studied a large numberof chemical and biological factors underthe influence of differentplantspecies (Pinus halepensis, Quercus rotundifolia, Cistus albidus and Rosmarinus officinalis) to leam which has the greatest responsibility for its presence and persistence in the top-soillayer. We obselVed strong and significant correlations between ergosterol, giomalin related soil protein (GRSP), extractable lipids, soil organic matter (SOM) content and water repellency (WR). Our results suggested lipid fraction as the principal factor. Moreover, apart from Pinus, fungal biomass seems to be also related to the SOM content. Soil WR found under Pinus appears to be the most influenced by fungi. Quality of SOM, to be precise, lipid fraction could be responsible for WR and its relationship with fungal activity.

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“…Soil microorganisms play important roles in many ecosystem processes such as biogeochemical cycling of nutrients, soil structural and hydrological properties and energy flow (Doran and Zeiss, 2000;Lesser et al, 2004;Driver et al, 2004;Š antrůcková et al, 2004). Thus, maintenance of the biological activity in the soil is generally regarded as a key feature of sustainable production to ensure ecosystem functions (Swift, 1994), and soil microbial properties are often used as indicators of soil quality.…”

Section: Introductionmentioning

confidence: 99%

The veterinary antibiotic oxytetracycline and Cu influence functional diversity of the soil microbial community

Kong

Zhu

et al. 2006

Environmental Pollution

219

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Oxytetracycline reduces the functional diversity of soil microbial community, and the combination of Cu and oxytetracycline leads to a further reduction. AbstractThere are increasing concerns over the effects of veterinary antibiotics and heavy metals in agricultural soils. The widely used veterinary antibiotic oxytetracycline (OTC), Cu and their combination on soil microbial community function were assessed with the Biolog method. The microbial community was extracted from the soil and exposed to a 0.85% sodium chloride solution containing OTC (0, 1, 5, 11, 43, 109 and 217 mM), or Cu (0, 10, 20, 100 and 300 mM), or combination of the two pollutants (OTC 0, 5, 11 mM and Cu 0, 20 mM). Functional diversity, evenness, average well color development (AWCD) and substrate utilization decreased significantly with increasing concentrations of OTC or Cu ( p < 0.005). The critical concentrations were 11 mM for OTC and 20 mM for Cu. The combination of OTC and Cu significantly decreased Shannon's diversity, evenness and utilization of carbohydrates and carboxylic acids compared to individual one of the contaminants. The antibiotic OTC and Cu had significant negative effects on soil microbial community function, particularly when both pollutants were present.

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Characterization of glomalin as a hyphal wall component of arbuscular mycorrhizal fungi

Cited by 384 publications

References 21 publications

Niveles de glomalina y su relación con características químicas y biológicas del suelo (andisol) en un relicto de bosque nativo del sur de Chile

Niveles de glomalina y su relación con características químicas y biológicas del suelo (andisol) en un relicto de bosque nativo del sur de Chile

Biological and chemical factors controlling the patchy distribution of soil water repellency among plant species in a Mediterranean semiarid forest

The veterinary antibiotic oxytetracycline and Cu influence functional diversity of the soil microbial community

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