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Long-term organic amendments regulate cbbL-harboring bacterial community via soil physicochemical properties and enzyme activities in a paddy soil.

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Title: Long-term organic amendments regulate cbbL-harboring bacterial community via soil physicochemical properties and enzyme activities in a paddy soil.
Authors: Xu, Jiangbing1 (AUTHOR), Li, Boxuan1 (AUTHOR), Wu, Yuhao1 (AUTHOR), Liu, Lei1 (AUTHOR), Zhou, Guoyi1 (AUTHOR) gyzhou@nuist.edu.cn, Liu, Xiaoli2,3 (AUTHOR), Chen, Ling2,3 (AUTHOR), Wu, Meng2,3 (AUTHOR), Ma, Xiaoyan4 (AUTHOR), Preece, Catherine5 (AUTHOR), Li, Daming6 (AUTHOR), Liu, Ming2,3 (AUTHOR) mliu@issas.ac.cn
Source: Journal of Soils & Sediments: Protection, Risk Assessment, & Remediation. Mar2026, Vol. 26 Issue 3, p1-14. 14p.
Abstract: Purpose: Organic amendments improve soil physicochemical and microbial properties, but the effects vary by fertilizer type. These amendments also modulate the autotrophic CO₂-fixing microbial community, particularly those harboring the cbbL gene, which encodes the large subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) form I. Nevertheless, how cbbL-harboring autotrophs respond to different organic amendments and their associations with soil enzyme activities are still not well understood. Materials and methods: A long-term organic amendment experiment was established in a double-cropping rice paddy field in Southern China, including four treatments: without organic fertilizer input (control), green manure (GM), pig manure (PM), and rice straw returning (RS). Soil C-, N-, and P-acquisition enzyme activities were analyzed using a fluorometric method. The cbbL-harboring bacterial community was characterized by quantitative PCR (qPCR) and high-throughput sequencing. Partial least squares path modeling (PLS-PM) was used to determine the relationships among physicochemical properties, enzyme activities, and the cbbL-harboring community. Results and discussion: The organic amendments improved soil physicochemical properties, including pH and soil organic C (SOC). Soil C-, N-, and P- acquisition enzyme activities responded variably to the amendments. Although the cbbL gene number did not significantly change, all organic amendments reduced the diversity of cbbL-harboring bacterial community. Shifts in the cbbL-harboring community composition were also observed: GM enriched Afipia, PM favored Pseudonocardia, and RS exhibited increased abundances of Methylotenera and Sulfuricaulis. PLS-PM indicated that soil pH, SOC, and C- and N-acquisition enzyme activities negatively influenced the diversity and the composition of the cbbL-harboring community, whereas P-acquisition enzyme activity had a positive effect on the community diversity. Conclusions: Our study highlights the complex interactions among soil physicochemical properties, enzyme activities, and cbbL-harboring bacterial community under organic amendments. The results address the critical factors shaping the cbbL-harboring bacterial community, advancing our understanding of CO₂-fixing microorganisms in agricultural ecosystems. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 191650955
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Long-term organic amendments regulate cbbL-harboring bacterial community via soil physicochemical properties and enzyme activities in a paddy soil.
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  Data: <searchLink fieldCode="AR" term="%22Xu%2C+Jiangbing%22">Xu, Jiangbing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Boxuan%22">Li, Boxuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Yuhao%22">Wu, Yuhao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Lei%22">Liu, Lei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Guoyi%22">Zhou, Guoyi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> gyzhou@nuist.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Xiaoli%22">Liu, Xiaoli</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Ling%22">Chen, Ling</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Meng%22">Wu, Meng</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ma%2C+Xiaoyan%22">Ma, Xiaoyan</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Preece%2C+Catherine%22">Preece, Catherine</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Daming%22">Li, Daming</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Ming%22">Liu, Ming</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> mliu@issas.ac.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Soils+%26+Sediments%3A+Protection%2C+Risk+Assessment%2C+%26+Remediation%22">Journal of Soils & Sediments: Protection, Risk Assessment, & Remediation</searchLink>. Mar2026, Vol. 26 Issue 3, p1-14. 14p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: Organic amendments improve soil physicochemical and microbial properties, but the effects vary by fertilizer type. These amendments also modulate the autotrophic CO₂-fixing microbial community, particularly those harboring the cbbL gene, which encodes the large subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) form I. Nevertheless, how cbbL-harboring autotrophs respond to different organic amendments and their associations with soil enzyme activities are still not well understood. Materials and methods: A long-term organic amendment experiment was established in a double-cropping rice paddy field in Southern China, including four treatments: without organic fertilizer input (control), green manure (GM), pig manure (PM), and rice straw returning (RS). Soil C-, N-, and P-acquisition enzyme activities were analyzed using a fluorometric method. The cbbL-harboring bacterial community was characterized by quantitative PCR (qPCR) and high-throughput sequencing. Partial least squares path modeling (PLS-PM) was used to determine the relationships among physicochemical properties, enzyme activities, and the cbbL-harboring community. Results and discussion: The organic amendments improved soil physicochemical properties, including pH and soil organic C (SOC). Soil C-, N-, and P- acquisition enzyme activities responded variably to the amendments. Although the cbbL gene number did not significantly change, all organic amendments reduced the diversity of cbbL-harboring bacterial community. Shifts in the cbbL-harboring community composition were also observed: GM enriched Afipia, PM favored Pseudonocardia, and RS exhibited increased abundances of Methylotenera and Sulfuricaulis. PLS-PM indicated that soil pH, SOC, and C- and N-acquisition enzyme activities negatively influenced the diversity and the composition of the cbbL-harboring community, whereas P-acquisition enzyme activity had a positive effect on the community diversity. Conclusions: Our study highlights the complex interactions among soil physicochemical properties, enzyme activities, and cbbL-harboring bacterial community under organic amendments. The results address the critical factors shaping the cbbL-harboring bacterial community, advancing our understanding of CO₂-fixing microorganisms in agricultural ecosystems. [ABSTRACT FROM AUTHOR]
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        Value: 10.1007/s11368-026-04244-6
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      – Code: eng
        Text: English
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      – TitleFull: Long-term organic amendments regulate cbbL-harboring bacterial community via soil physicochemical properties and enzyme activities in a paddy soil.
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            NameFull: Xu, Jiangbing
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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