Rhizosphere Soil Microbial Survival States and N-Related Process during Riparian Plant Dormancy: Influences of Plant Locations and Plant Species

Zhang, Chao; Qian, Jin; Hu, Jing; Huang, Yuanyuan; Lu, Bianhe; He, Yuxuan

doi:10.3390/d14080611

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Rhizosphere Soil Microbial Survival States and N-Related Process during Riparian Plant Dormancy: Influences of Plant Locations and Plant Species

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Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China

College of Environment, Hohai University, Nanjing 210098, China

Geosystems Research Institute, Mississippi State University, Starkville, MS 39759, USA

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CSIRO Oceans and Atmosphere, Aspendale 3195, Australia

Author to whom correspondence should be addressed.

Academic Editor: Xiaobo Wang

Diversity 2022, 14(8), 611; https://doi.org/10.3390/d14080611

Received: 14 June 2022 / Revised: 21 July 2022 / Accepted: 25 July 2022 / Published: 28 July 2022

(This article belongs to the Special Issue Plant-Soil-Microorganism: Diversity and Interactions)

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Abstract

The plant dormancy period in the riparian zone affects the activity of microorganisms and their related nitrogen (N) process, which necessitates an investigation of the influence of the dormancy period on the microbial community. This study sampled two groups of soils (ashore and offshore soils) of two typical plants (Acorus calamus, Canna indica) in rhizosphere soils and bulk soils during the dormancy period to study the microbial communities. The results suggested that in ashore soils, especially in Canna indica soils, there was a lower abundance of N-related genes (4.79 × 10⁶ copies/g) due to relatively competitive ecological niche competition because of possible sufficient substrate. Therefore, microbial communities still play a major role in the removal of N-related nutrients during plants’ dormancy period. In addition, the results also showed that during the plant dormancy period, the cell necrosis processes accounted for relatively lower proportions (15.75%, 7.54%, 21.46%, and 5.23% in ashore and offshore Canna indica and ashore and offshore Acorus calamus, respectively), suggesting an unexpected fairly strong microbial survival ability in the dormancy period compared to the commonly expected weak microbial state. This high microbial vitality provides us insight into the restoration of riparian soils during the plant dormancy period. View Full-Text

Keywords: dormancy period; microbial livability; nitrogen removal; wetness and dryness; microbial functional gene

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MDPI and ACS Style

Zhang, C.; Qian, J.; Hu, J.; Huang, Y.; Lu, B.; He, Y. Rhizosphere Soil Microbial Survival States and N-Related Process during Riparian Plant Dormancy: Influences of Plant Locations and Plant Species. Diversity 2022, 14, 611. https://doi.org/10.3390/d14080611

AMA Style

Zhang C, Qian J, Hu J, Huang Y, Lu B, He Y. Rhizosphere Soil Microbial Survival States and N-Related Process during Riparian Plant Dormancy: Influences of Plant Locations and Plant Species. Diversity. 2022; 14(8):611. https://doi.org/10.3390/d14080611

Chicago/Turabian Style

Zhang, Chao, Jin Qian, Jing Hu, Yuanyuan Huang, Bianhe Lu, and Yuxuan He. 2022. "Rhizosphere Soil Microbial Survival States and N-Related Process during Riparian Plant Dormancy: Influences of Plant Locations and Plant Species" Diversity 14, no. 8: 611. https://doi.org/10.3390/d14080611

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Rhizosphere Soil Microbial Survival States and N-Related Process during Riparian Plant Dormancy: Influences of Plant Locations and Plant Species

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