Role of glomalin in soil carbon storage and its variation across land uses in temperate Himalayan regime

Nautiyal, Prachi; Rajput, Richa; Pandey, Deepshikha; Arunachalam, A.

doi:10.1016/j.bcab.2019.101311

Cited by 39 publications

(19 citation statements)

References 35 publications

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“…Though the sensitivity was slightly reduced in the range above 1 µ g/g, it was still usable for analytical purposes. The assay is suitable for detection of glomalin in real samples where arable field has expected median glomalin content 2 mg/g; maximal glomalin level can be found in forest ecosystem where it can reach 5 mg/g [ 24 ]. Less fertile soils have glomalin content even under 0.5 mg/g.…”

Section: Resultsmentioning

confidence: 99%

Immunoassay of Glomalin by Quartz Crystal Microbalance Biosensor Containing Iron Oxide Nanoparticles

Pohanka

Vlček

2020

International Journal of Analytical Chemistry

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Glomalin is a soil protein resembling heat shock protein (HSP) 60 and exerting high affinity to metals, causing retention of water in the environment and improving mechanical stability of soil. Currently, glomalin is determined in the soil or other samples by combination of autoclaving extraction and total protein determination typically by the Bradford method. In this paper, a piezoelectric biosensor was prepared to determine glomalin in a label-free measurement. The biosensor contained antibodies immobilized on quartz crystal microbalance (QCM), and the recognition layer was stabilized by iron oxide nanoparticles. The assay was tested on real soil samples and compared with the standard Bradford assay. Limit of detection of the assay was equal to 2.4 µg/g for a soil extract with a volume of 50 µl. The assay takes approximately half of an hour and was fully correlated to the Bradford assay. The biosensor had significant advantages than the other methods: it worked in a label-free mode and was fully applicable for practical samples.

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Section: Resultsmentioning

confidence: 99%

Immunoassay of Glomalin by Quartz Crystal Microbalance Biosensor Containing Iron Oxide Nanoparticles

Pohanka

Vlček

2020

International Journal of Analytical Chemistry

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“…Total GRSP was lower in cropland and fallow land when compared to forest soils covered by the AM-forming timber species Combretodendron macrocarpum, Piptadeniastrum africanum and Disternonanthus benthamianus (Fokom et al 2012). Likewise, glomalin concentration was found lower in cropland than the native forest of temperate Himalaya (Nautiyal et al 2019). Here, it has been explained that an increase in the root network of trees in the forest leads to an increase in AMF colonization which contributed to higher glomalin concentration.…”

Section: Iforest -Biogeosciences and Forestrymentioning

confidence: 91%

Soil fungal communities across land use types

Balami¹,

Vašutová²,

Godbold³

et al. 2020

iForest

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Biogeosciences and Forestry Biogeosciences and Forestry Soil fungal communities across land use types Sujan Balami (1) , Martina Vašutová (1-2) , Douglas Godbold (2-3) , Petr Kotas (4) , Pavel Cudlín (2) Land use change is one of the major causes of biodiversity loss, mostly due to habitat change and fragmentation. Belowground fungal diversity is very important in terrestrial ecosystems, however, the effect of land use change on soil fungal community is poorly understood. In this review, a total of 190 studies worldwide were analyzed. To monitor the effect of land use change, different fungal parameters such as richness, diversity, community composition, root colonization by arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) fungi, spore density, ergosterol, and phospholipid fatty acid (PLFA) content and AM fungal glomalin related soil protein (GRSP) were studied. In general, results from analyzed studies often showed a negative response of fungal quantitative parameters after land use change from less-intensive site management to intensive site management. Land use change mostly showed significant shifts in fungal community composition. Considering land use change types, only 18 out of 91 land use change types were included in more than 10 studies, conversion of primary and secondary forest to various, more intensive land use was most often represented. All these 18 types of land use change influenced fungal community composition, however, the effects on quantitative parameters were mostly inconsistent. Current knowledge is not sufficient to conclude general land use impacts on soil fungi as the reviewed studies are fragmented and limited by the local context of land use change. Unification of the methodology, detailed descriptions of environmental factors, more reference sequences in public databases, and especially data on ecology and quantitative parameters of key fungal species would significantly improve the understanding of this issue.

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“…This conforms to the "glue" description of glomalin, by Wright and Upadhyaya [4], acting on soil aggregates aiding in the formation of macroaggregates from microaggregates. Whilst the reported findings of Nautiyal et al [127] are important, Nautiyal et al [127] are unable to consider the effects of tillage and land management practices on the quantities of glomalin in soils and alterations to glomalin's adhesive properties. However, Sheehy et al [105] produces direct comparisons between soil aggregates of three tillage practices (conventional, reduced and zero-till) and is able to give clear indications that zero-till practices maintain a greater proportion of macroaggregates, contribution to more stable soils and erosion resistant, than soil aggregates in conventional till.…”

Section: Tillage Glomalin and Soil Erosionmentioning

confidence: 97%

“…Nautiyal et al [127] studied the influence of glomalin in regards to its contribution to soil carbon stores and was able to show a significant positive relationship with organic carbon contents of soils (p < 0.001) and aggregate stability. This conforms to the "glue" description of glomalin, by Wright and Upadhyaya [4], acting on soil aggregates aiding in the formation of macroaggregates from microaggregates.…”

Section: Tillage Glomalin and Soil Erosionmentioning

confidence: 99%

Arbuscular Mycorrhizal Fungi in Agriculture

Wilkes

2021

Encyclopedia

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Arbuscular mycorrhizal (AM) fungi are biotrophic symbionts forming close relationships with an estimated 80% of terrestrial plants suitable as their host. Via an established AM fungal–host relationship, soil-bound nutrients are made available to the host plant through root cortical arbuscules as the site of exchange. At these sites, photosynthetic carbohydrates are provided to the AM fungus—carbohydrates that cannot be produced by the fungus. AM fungal–host symbiosis is very sensitive to soil disturbance, for example, agricultural tillage practices can damage and reduce AM fungal abilities to interact with a host and provide plant growth-promoting properties.

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Role of glomalin in soil carbon storage and its variation across land uses in temperate Himalayan regime

Cited by 39 publications

References 35 publications

Immunoassay of Glomalin by Quartz Crystal Microbalance Biosensor Containing Iron Oxide Nanoparticles

Immunoassay of Glomalin by Quartz Crystal Microbalance Biosensor Containing Iron Oxide Nanoparticles

Soil fungal communities across land use types

Arbuscular Mycorrhizal Fungi in Agriculture

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