Aggregate stability and glomalin in alternative crop rotations for the central Great Plains

Wright, Sewall; Anderson, Randy L.

doi:10.1007/s003740050653

Cited by 263 publications

(152 citation statements)

References 15 publications

Supporting

Mentioning

137

Contrasting

Unclassified

Order By: Relevance

“…Glomalins constitute nearly 30% of carbon content in the soil and about 2% of the total weight of soil aggregates (Nichols, 2004). The physico-chemical properties of glomalin such as insolubility, viscosity and hydrophobicity can initiate and protect the appearing soil aggregates and improve the hydrophobic properties of soil particles allowing air permeation and water flow (Gałązka and Gawryjołek, 2015;Wright and Anderson, 2000;Wright et al, 1996). Glycoproteins cover the soil aggregates and protect them from being broken up by forming a characteristic coat on their surface (Wright and Anderson 2000).…”

Section: Accessibility Of Water and Biogenic Elements For Amf Plantsmentioning

confidence: 99%

“…The physico-chemical properties of glomalin such as insolubility, viscosity and hydrophobicity can initiate and protect the appearing soil aggregates and improve the hydrophobic properties of soil particles allowing air permeation and water flow (Gałązka and Gawryjołek, 2015;Wright and Anderson, 2000;Wright et al, 1996). Glycoproteins cover the soil aggregates and protect them from being broken up by forming a characteristic coat on their surface (Wright and Anderson 2000). Glomalins produced by AMF cover the mycelium hyphae, keeping water and nutrients on the way to and from the plant, thus contributing to the better nutrition of plants and to an increased yield (Nichols, 2004;Gałązka and Gawryjołek, 2015).…”

Section: Accessibility Of Water and Biogenic Elements For Amf Plantsmentioning

confidence: 99%

See 1 more Smart Citation

Impact of abiotic factors on development of the community of arbuscular mycorrhizal fungi in the soil: a Review

Jamiołkowska¹,

Ksiezniak²,

Gałązka³

et al. 2018

International Agrophysics

View full text Add to dashboard Cite

Arbuscular mycorrhizal fungi inhabiting soil play an important role for vascular plants. Interaction between arbuscular mycorrhizal fungi, plants and soil microorganisms leads to many mutual advantages. However, the effectiveness of mycorrhizal fungi depends not only on biotic, but also abiotic factors such as physico-chemical properties of the soil, availability of water and biogenic elements, agricultural practices, and climatic conditions. First of all, it is important to adapt the arbuscular mycorrhizal fungi species to changing environmental conditions. The compactness of the soil and its structure have a huge impact on its biological activity. Soil pH reaction has a substantial impact on the mobility of ions in soil dilutions and their uptake by plants and soil microflora. Water excess can be a factor negatively affecting arbuscular mycorrhizal fungi because these microorganisms are sensitive to a lower availability of oxygen. Mechanical cultivation of the soil has a marginal impact on the arbuscular mycorrhizal fungi spores. However, soil translocation can cause changes to the population of the arbuscular mycorrhizal fungi abundance in the soil profile. The geographical location and topographic differentiation of cultivated soils, as well as the variability of climatic factors affect the population of the arbuscular mycorrhizal fungi in the soils and their symbiotic activity.

show abstract

Section: Accessibility Of Water and Biogenic Elements For Amf Plantsmentioning

confidence: 99%

Section: Accessibility Of Water and Biogenic Elements For Amf Plantsmentioning

confidence: 99%

Impact of abiotic factors on development of the community of arbuscular mycorrhizal fungi in the soil: a Review

Jamiołkowska¹,

Ksiezniak²,

Gałązka³

et al. 2018

International Agrophysics

View full text Add to dashboard Cite

show abstract

“…According to these authors, clay can have a protective action against microbial decomposers of glomalin. According to Wright & Anderson (2000), some crop rotations, e.g., wheat/maize/millet in no-tillage boost glomalin production and increase soil aggregation more than other crop rotations that include sunflower. Therefore, the crops increasing soil stability and reducing erosion can often favour production and development of extraradical hyphae and glomalin fractions (Cardoso & Kuyper, 2006).…”

Section: Resultsmentioning

confidence: 99%

Arbuscular mycorrhizal fungal communities and soil aggregation as affected by cultivation of various crops during the sugarcane fallow period

Truber

Fernandes

2014

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

SUMMARYManagement systems involving crop rotation, ground cover species and reduced soil tillage can improve the soil physical and biological properties and reduce degradation. The primary purpose of this study was to assess the effect of various crops grown during the sugarcane fallow period on the production of glomalin and arbuscular mycorrhizal fungi in two Latosols, as well as their influence on soil aggregation. The experiment was conducted on an eutroferric Red Latosol with high-clay texture (680 g clay kg -1 ) and an acric Red Latosol with clayey texture (440 g kg -1 clay) in Jaboticabal (São Paulo State, Brazil). A randomized block design involving five blocks and four crops [soybean (S), soybean/fallow/soybean (SFS), soybean/millet/soybean (SMS) and soybean/sunn hemp/soybean (SHS)] was used to this end. Soil samples for analysis were collected in June 2011. No significant differences in total glomalin production were detected between the soils after the different crops. However, total external mycelium length was greater in the soils under SMS and SHS. Also, there were differences in easily extractable glomalin, total glomalin and aggregate stability, which were all greater in the eutroferric Red Latosol than in the acric Red Latosol. None of the cover crops planted in the fallow period of sugarcane improved aggregate stability in either Latosol.Index terms: glomalin, hyphae, eutroferric Red Latosol, acric Red Latosol. RESUMO: COMUNIDADE DE FUNGOS MICORRÍZICOS ARBUSCULARES E AGREGAÇÃO DO SOLO APÓS O CULTIVO DE DIFERENTES CULTURAS NO PERÍODO DE REFORMA DO CANAVIALOs sistemas de manejo que adotam menor revolvimento do solo, rotação de culturas e utilização de plantas de cobertura podem levar a melhorias dos seus atributos biológicos e físicos, com redução da degradação do solo. O objetivo deste estudo foi avaliar o cultivo de diferentes culturas, durante o período de reforma do canavial, na produção de glomalina e na de propágulos de fungos micorrízicos arbusculares, em dois Latossolos, e a influência desses nos processos de agregação do solo. O experimento foi conduzido no município de Jaboticabal, SP, em um Latossolo Vermelho eutroférrico (LVef) textura muito argilosa (680 g kg -1 de argila) e um Latossolo Vermelho ácrico (LVw) textura argilosa (440 g kg -1 de argila), durante o período de reforma do canavial. O delineamento experimental foi em blocos casualizados com quatro cultivos e cinco blocos. Os cultivos foram: soja; soja/pousio/soja; soja/milheto/soja; e soja/crotalária/soja. A amostragem de solo foi realizada em junho de 2011. Não foram verificadas diferenças significativas na quantidade de glomalina total, após a utilização das diferentes culturas. Maior comprimento de micélio externo total foi observado no solo onde houve os cultivos de soja/milheto/soja e soja/crotalária/soja. Foram observadas diferenças entre os solos avaliados para os atributos glomalina facilmente extraível, glomalina total e índice de estabilidade de agregados do solo, tendo o LVef apresentado características mais favo...

show abstract

“…This was not the case, and our data suggest that glomalin, as estimated by total glomalin, exuded by AM fungi, is not related to water infiltration and thus has little if any role in aggregate stability, at least through the postulated mechanism. It should be noted that our measurements, unlike those of past workers (Wright and Upadhyaya 1998;Wright and Anderson 2000;Wright et al 1999), were carried out at the same scale, of the order of 1 cm 3 , water infiltration is initially sampled at the 3-mm scale, but at a steady state, the volume of soil sampled is approaching the cm 3 scale. The soil sampled was also in the direct vicinity of the comparable glomalin values presented, resulting in a more meaningful comparison.…”

Section: Discussionmentioning

confidence: 99%

“…Work by Wright and co-workers suggests that the secretion of glomalin, a glycoprotein exuded by AM fungi, acts directly to increase aggregate stability Wright and Upadhyaya 1998;Wright et al 1999;Wright and Anderson 2000). The postulated mechanism behind this effect is that the AM fungal exudate acts as a sticky hydrophobic substance that enhances soil aggregate stability by binding of soil particles and contributing to soil-water infiltration.…”

mentioning

confidence: 99%

Does the presence of glomalin relate to reduced water infiltration through hydrophobicity?

Feeney¹,

Daniell²,

Hallett³

et al. 2004

Can. J. Soil. Sci.

View full text Add to dashboard Cite

I. M. 2004. Does the presence of glomalin relate to reduced water infiltration through hydrophobicity? Can. J. Soil Sci. 84: 365-372. The resilience and stability of the physical structure of soil impacts directly on all soil processes, mediating microbial activity and defining the flow pathways between the soil ecosystem, waterways and the atmosphere. The effect of the presence of the glycoprotein glomalin exuded from Arbuscular Mycorrhzal (AM) fungi, on soil hydrophobicity is presented. A possible role for glomalin as improving soil structural stability is important in the context of soil protection. Using total glomalin, together with measurements of soil hydrophobicity, we investigate the spatial correlations between the two measurements in the presence and absence of pea roots. Whilst AM fungi were visible within roots (up to 52% root length colonization), no differences in glomalin concentration between planted and unplanted controls were observed. The presence and amount of glomalin did not correspond to the presence or level of hydrophobicity in soil. We discuss these results in relation to AM fungal-glomalin interactions, soil structure and root exudation.Key words: Glomalin, water infiltration, mycorrhizae, soil structure, hydrophobic Feeney, D. S., Daniell, T., Hallett, P. D., Illian, J., Ritz, K. et Young, I. M. 2004. La glomaline explique-t-elle la baisse de l'infiltration d'eau attribuable à l'hydrophobicité? Can. J. Soil Sci. 84: 365-372. La résilience et la stabilité de la structure physique du sol influent directement sur les mécanismes pédologiques en favorisant l'activité de la microflore et en régissant les flux entre l'écosystème tellurique, les cours d'eau et l'atmosphère. Les auteurs ont examiné l'incidence de la glomaline, une glycoprotéine extraite des mycorhizes à arbuscules (MA), sur l'hydrophobicité du sol. La glomaline pourrait stabiliser la structure du sol davantage, ce qui en accroîtrait l'importance pour la protection des sols. Les auteurs ont étudié les corrélations spatiales entre la concentration totale de glomaline et l'hydrophobicité du sol avec et sans racines de pois. Si les MA sont visibles sur les racines (colonisation de jusqu'à 52 % du système racinaire), on n'observe aucune variation de la concentration de glomaline entre les parcelles cultivées et les parcelles témoins qui ne l'étaient pas. La présence et la quantité de glomaline ne présentent aucune correspondance avec l'hydrophobicité du sol et son importance. Les auteurs analysent leurs résultats en fonction des interactions entre les MA et la glomaline, la structure du sol et l'exsudation des racines.

show abstract

Aggregate stability and glomalin in alternative crop rotations for the central Great Plains

Cited by 263 publications

References 15 publications

Impact of abiotic factors on development of the community of arbuscular mycorrhizal fungi in the soil: a Review

Impact of abiotic factors on development of the community of arbuscular mycorrhizal fungi in the soil: a Review

Arbuscular mycorrhizal fungal communities and soil aggregation as affected by cultivation of various crops during the sugarcane fallow period

Does the presence of glomalin relate to reduced water infiltration through hydrophobicity?

Contact Info

Product

Resources

About