Evidence map›Paper›PMID 28589455›Full record

ArticleEnvironmental monitoring and assessment2017

Terrestrially derived glomalin-related soil protein quality as a potential ecological indicator in a peri-urban watershed.

Xueyan Sui, Zhipeng Wu, Chen Lin, Shenglu Zhou

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Article in Environmental monitoring and assessment, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

4 authors.

Xueyan SuiSchool of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210046, China.
Zhipeng WuSchool of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210046, China. dg1327035@smail.nju.edu.cn.
Chen LinKey Laboratory of Watershed Geographic Sciences, Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
Shenglu ZhouSchool of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210046, China. zhousl@nju.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glomalin, which sequesters substantial amounts of carbon, plays a critical role in sustaining terrestrial biome functions and contributes to the fate of many pollutants from terrestrial to aquatic ecosystems. Despite having focused on the amount of glomalin produced, very few attempts have been made to understand how landscapes and environmental conditions influence glomalin composition and characteristics. This study focused on glomalin-related soil protein (GRSP) exported as storm runoff including eroded sediment and water that was collected before flowing to surface waters in a peri-urban watershed. GRSP characteristics were assessed by Bradford protein analysis, fluorescence spectroscopy combined with parallel factor analysis (PARAFAC), and the determination of aromaticity based on the specific ultraviolet absorption value (280 nm) and molecular weight. General linear models (GLMs) was established by integrating microbial activity, land cover, water temperature, precipitation, and other solution chemical properties to explain the variations in GRSP characteristics. Results showed that a higher GRSP concentration in agricultural reference sites was produced in the form of specific materials with low molecular weight and aromaticity, as well as high percentage of C1 and C5 components which indicate microbial-processed sources, relative to urbanized and forested sites. Compared with forested land, urbanized land clearly produced runoff GRSP with low molecular weight and aromaticity, as well as more degradation of humic-like materials (C3 component). The highest GLM explaining 89% of the variables, including significant variables (p < 0.05) such as microbial activity, water temperature, and water conductivity, was observed for GRSP characteristics. Therefore, changes in eroded soil GRSP quality can serve as an indicator for improving watershed management and thus protecting aquatic ecosystems.

Indexed as

EcosystemEnvironmental MonitoringForestsFungal ProteinsGlycoproteinsSoilSoil MicrobiologyFungal ProteinsglomalinGlycoproteinsSoilEnvironmental factorsGlomalin-related soil protein qualityLand coverPeri-urban watershed

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.