High Level of Iron Inhibited Maize Straw Decomposition by Suppressing Microbial Communities and Enzyme Activities Article Swipe
Mengcan Jin
,
Hao Guan
,
Wenjie Zhang
,
Da Tian
,
Junling Wei
,
Yusef Kianpoor Kalkhajeh
,
Hongjian Gao
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/agronomy12061286
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/agronomy12061286
In order to study the linkages between the crop straw decomposition rate and the change in soil biological properties after the straw returned to the soil with different iron (Fe2+) contents, a 180-day incubation experiment was performed to examine the decomposition of maize straw (MS) under three Fe2+ levels, i.e., 0, 0.3, and 1 mg g−1. Enzyme activities regarding straw decomposition and microbial communities under 0 and 1 mg g−1 Fe addition were also detected. The results showed that Fe2+ addition significantly inhibited MS decomposition. This was evidenced by the higher contents of hemicellulose, cellulose, and lignin in Fe2+ treatments on day 180. High-Fe addition (1 mg g−1) decreased the activity of Laccase (Lac) by 71.82% compared with control on day 30. Furthermore, the principal coordinates analysis (PCoA) indicated that high-Fe mainly affected the bacterial community. In particular, it suppressed the relative abundance of Microbacteriaceae in phylum Actinomycota that, in turn, is a potential decomposer of crop straw by secreting lignocellulolytic enzymes. A high level of Fe2+ inhibited the decomposition of hemicellulose, cellulose, and lignin in MS by reducing the relative abundance of phylum Actinobacteria in bacteria and suppressing Lac activity. Our findings provide guidance for returning crop straws in soils with high-Fe content.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/agronomy12061286
- https://www.mdpi.com/2073-4395/12/6/1286/pdf?version=1653656752
- OA Status
- gold
- Cited By
- 10
- References
- 46
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4281648345
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https://openalex.org/W4281648345Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/agronomy12061286Digital Object Identifier
- Title
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High Level of Iron Inhibited Maize Straw Decomposition by Suppressing Microbial Communities and Enzyme ActivitiesWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-05-27Full publication date if available
- Authors
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Mengcan Jin, Hao Guan, Wenjie Zhang, Da Tian, Junling Wei, Yusef Kianpoor Kalkhajeh, Hongjian GaoList of authors in order
- Landing page
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https://doi.org/10.3390/agronomy12061286Publisher landing page
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https://www.mdpi.com/2073-4395/12/6/1286/pdf?version=1653656752Direct link to full text PDF
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goldOpen access status per OpenAlex
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https://www.mdpi.com/2073-4395/12/6/1286/pdf?version=1653656752Direct OA link when available
- Concepts
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Hemicellulose, Straw, Lignin, Cellulose, Decomposition, Chemistry, Actinobacteria, Agronomy, Incubation, Food science, Botany, Biology, Biochemistry, Organic chemistry, Gene, 16S ribosomal RNATop concepts (fields/topics) attached by OpenAlex
- Cited by
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10Total citation count in OpenAlex
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2025: 4, 2024: 1, 2023: 4, 2022: 1Per-year citation counts (last 5 years)
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46Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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