Mudflat reclamation causes change in the composition of fungal communities under long-term rice cultivation

Zhang, Yang; Li, Qing; Chen, Yinglong; Dai, Qigen; Hu, Jian

doi:10.1139/cjm-2019-0005

Cited by 10 publications

(3 citation statements)

References 33 publications

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“…Interesting shifts were also observed in the structure of soil fungal communities. Under different treatments, Ascomycota was the predominant soil fungal phylum in the experimental area, showing strong adaptability and broad distribution, consistent with prior research into soil fungal structure in paddy fields [53,54]. However, as the years of modification increased, the dominance of Ascomycota gradually declined, while the relative abundance of Basidiomycota, Mortierellomycota, and Rozellomycota increased significantly.…”

Section: Discussionsupporting

confidence: 84%

Impact of Phosphogypsum Application on Fungal Community Structure and Soil Health in Saline–Alkali-Affected Paddy Fields

Lu,

Feng,

et al. 2023

Agronomy

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Modifying saline–alkali soil is crucial for ensuring food security and expanding arable land. Microorganisms play a key role in driving various biochemical processes in agricultural ecosystems. However, limited information exists on the changes in the microbial community and soil structure in soda saline-alkali soil under modified conditions. In this study, we examined the changes in soil physicochemical properties of saline–alkali soil altered by rice planting alone and by combined application of phosphogypsum in the Songnen Plain. The results demonstrated that phosphogypsum significantly improved the soil’s physicochemical properties; it notably reduced salinity and alkalinity while enhancing nutrient structure. Additionally, the utilization efficiency of carbon (C), nitrogen (N), and phosphorus (P) increased. Fungal community diversity also significantly improved, influenced mainly by soil water content (SWC), total organic carbon (TOC), soil organic matter (SOM), total nitrogen (TN) and sodium ion (Na+). TOC, SOM, TN, ESP, and Na+ served as the primary drivers affecting the fungal community. Our findings indicate that combining rice planting with phosphogypsum application effectively modifies saline–alkali soil, regulates fungal community structure, and enhances long-term soil health. Furthermore, the beneficial effects of phosphogypsum on saline–alkali soil persist for persists for several years, largely owing to its role in promoting microbial community growth.

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Section: Discussionsupporting

confidence: 84%

Impact of Phosphogypsum Application on Fungal Community Structure and Soil Health in Saline–Alkali-Affected Paddy Fields

Lu,

Feng,

et al. 2023

Agronomy

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“…The number of OTUs ranged from 426 to 521, and significantly (P < 0.05) increased by the SSF amendment (Figure 1). The number of fungal OTUs observed in our study was more similar to the fungal OTUs observed in other submerged paddy ecosystems (Yuan et al, 2018;Zhang et al, 2019).…”

Section: Fungal Community Diversitysupporting

confidence: 87%

Silicate Fertilizer Amendment Alters Fungal Communities and Accelerates Soil Organic Matter Decomposition

et al. 2019

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Soil microorganisms play a crucial role in organic matter decomposition and nutrient cycling in cropping systems. Compared to bacteria, fungal community composition and the role of fungi in organic matter decomposition and nutrient cycling in agro-systems are, however, elusive. Silicon (Si) fertilization is essential to improve agronomic performance of rice. The effects of the Si fertilizer application on the soil fungal community composition and their contribution in soil organic matter (SOM) decomposition are not yet studied. We investigated the short-term (120 days) slag silicate fertilizer (SSF) amendment impacts on plant photosynthesis and soil biochemical changes, soil fungal communities (assessed by ITS amplicon illumina sequencing), hydrolytic and oxidase enzyme activities, CO 2 emissions, and bacterial and fungal respiration in diverse eco-geographic races of rice (Oryza sativa L.), i.e., Japonica rice (O. sativa japonica) and Indica rice (O. sativa indica). The short-term SSF amendment significantly increased the relative abundance of saprotrophic fungi and accelerated organic matter decomposition. The increase in saprotrophic fungi was mostly attributed to greater labile C availability and Si availability. Higher organic matter decomposition was accompanied by an increase in both hydrolytic and oxidative enzyme activities in response to the SSF amendment. The stimulation of oxidative enzyme activities was explained by an increase in root oxidase activities and iron redox cycling, whereas stimulation of hydrolytic enzyme activities was explained by the greater labile C availability under SSF fertilization. We conclude that the short-term SSF amendment increases saprotrophic fungal communities and soil hydrolytic and oxidative enzyme activities, which in turn stimulates SOM mineralization and thus could have negative feedback impacts on soil C storage in submerged rice paddies.

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“…Continuous agricultural planting will reduce the diversity of soil bacterial community, change the community composition, find the proliferation of harmful bacteria in the soil with serious diseases in continuous cropping farm systems, and reduce the beneficial bacteria (Wu et al, 2017 ; Hu et al, 2019 ). Increasing cultivation years changed the structure and diversity of soil bacterial and fungal communities in farmland, and the long-term fertilization increased soil organic carbon (SOC) storage and macroaggregate content (Zhang et al, 2019 ; Li et al, 2020 ), but these studies focused on farmland whose cultivation years generally spanned about 20 years, and there were fewer studies on the changing trends of soil bacterial community in multiple cropping farmlands with more than 40 years of cultivation.…”

Section: Introductionmentioning

confidence: 99%

Soil Bacterial Community in the Multiple Cropping System Increased Grain Yield Within 40 Cultivation Years

Chen

Zheng

et al. 2021

Front. Plant Sci.

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The shortage of land resources restricts the sustainable development of agricultural production. Multiple cropping has been widely used in Southern China, but whether the continuous planting will cause a decline in soil quality and crop yield is unclear. To test whether multiple cropping could increase grain yield, we investigated the farmlands with different cultivation years (10–20 years, 20–40 years, and >40 years). Results showed that tobacco-rice multiple cropping rotation significantly increased soil pH, nitrogen nutrient content, and grain yield, and it increased the richness of the bacterial community. The farmland with 20–40 years of cultivation has the highest soil organic carbon (SOC), ammonium nitrogen, and grain yield, but there is no significant difference in the diversity and structure of the bacterial community in farmlands with different cultivation years. The molecular ecological network indicated that the stability of the bacterial community decreased across the cultivation years, which may result in a decline of farmland yields in multiple cropping system> 40 years. The Acidobacteria members as the keystone taxa (Zi ≥ 2.5 or Pi ≥ 0.62) appeared in the tobacco-rice multiple cropping rotation farmlands, and the highest abundance of Acidobacteria was found in the farmland with the highest SOC and ammonium nitrogen content, suggesting Acidobacteria Gp4, GP7, GP12, and GP17 are important taxa involved in the soil carbon and nitrogen cycle. Therefore, in this study, the multiple cropping systems for 20 years will not reduce the crop production potential, but they cannot last for more than 40 years. This study provides insights for ensuring soil quality and enhancing sustainable agricultural production capacity.

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Mudflat reclamation causes change in the composition of fungal communities under long-term rice cultivation

Cited by 10 publications

References 33 publications

Impact of Phosphogypsum Application on Fungal Community Structure and Soil Health in Saline–Alkali-Affected Paddy Fields

Impact of Phosphogypsum Application on Fungal Community Structure and Soil Health in Saline–Alkali-Affected Paddy Fields

Silicate Fertilizer Amendment Alters Fungal Communities and Accelerates Soil Organic Matter Decomposition

Soil Bacterial Community in the Multiple Cropping System Increased Grain Yield Within 40 Cultivation Years

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