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Spatio-temporal dynamics of arbuscular mycorrhizal fungi and soil organic carbon in coastal saline soil of China
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SYSNO ASEP 0540853 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Spatio-temporal dynamics of arbuscular mycorrhizal fungi and soil organic carbon in coastal saline soil of China Author(s) Zhang, H.-S. (CN)
Zhou, Ming-Xi (BC-A) RID, ORCID
Zai, X.-M. (CN)
Zhao, F.-G. (CN)
Qin, P. (CN)Number of authors 5 Article number 9781 Source Title Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 10, č. 1 (2020)Number of pages 13 s. Language eng - English Country GB - United Kingdom Keywords enzyme-activities ; glomalin ; protein ; root ; rhizosphere Subject RIV EH - Ecology, Behaviour OECD category Plant sciences, botany Method of publishing Open access Institutional support BC-A - RVO:60077344 UT WOS 000543956500021 EID SCOPUS 85086570132 DOI 10.1038/s41598-020-66976-w Annotation A comprehensive understanding of the relationship between arbuscular mycorrhizal (AM) fungi and coastal saline soil organic carbon (SOC) is crucial for analysis of the function of coastal wetlands in soil carbon sequestration. In a field experiment, the temporal and spatial dynamics of AM fungi, glomalin-related soil protein (GRSP) which is described as a N-linked glycoprotein and the putative gene product of AM fungi, SOC, and soil aggregates were investigated in halophyte Kosteletzkya virginica rhizosphere soil of coastal saline areas of North Jiangsu, China. Soil samples were collected from a depth of up to 30cm in two plantation regions from August 2012 to May 2013. Results showed K. virginica formed a strong symbiotic relationship to AM fungi. AM colonization and spore density were the highest in the 10-20cm soil layer of Jinhai farm in August 2012, because of the presence of numerous fibrous roots in this soil layer. The total GRSP and SOC were the highest in the 0-10cm soil layer in May 2013 and November 2012, respectively. Correlation coefficient analysis revealed that AM colonization and spore density were positively correlated with total GRSP. Meanwhile, total GRSP was significantly positively correlated with large macroaggregates (>3mm), SOC, total P, Olsen P, and soil microbial biomass carbon (SMBC), but negatively correlated with microaggregates (<0.25mm), soil EC, total N, and pH. SOC was positively correlated with spore density, large macroaggregates, small macroaggregates (2-0.25mm), alkaline N, and SMBC and negatively correlated with microaggregates, EC, pH, and total K. Although it may be a statistical artifact, we found an interesting phenomenon that there was no significant correlation between soil aggregates and AM colonization or spore density. Hence, total GRSP is a vital source of saline soil C pool and an important biological indicator for evaluating coastal saline SOC pool and soil fertility, while AM colonization or spore density may not be. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2021 Electronic address https://www.nature.com/articles/s41598-020-66976-w
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