Anammox bacterial abundance and diversity in different temperatures of purple paddy soils by 13C-DNA stable-isotope probing combined with high-throughput sequencing

Yu, Zijie; He, Xinhua; Li, Zhitong; Zhou, Shuang; Guo, Dalu; Pu, Hao; Luo, Huan

doi:10.3389/fmicb.2023.1098681

Cited by 3 publications

(2 citation statements)

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“…Kuenenia also being detected. Clearly, many microbial niches in the soil were found to support the ecological and physiological functions of different anammox bacteria [101].…”

Section: Anammox In Terrestrial Ecosystemsmentioning

confidence: 99%

Nitrogen Contribution Rate of Anammox in Different Systems and Its Relationship with Environmental Factors

Cui¹,

Zhang

2023

Water

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Anammox bacteria can remove ammonium directly, which is different from what was previously believed. This is an important process for the global nitrogen cycle. Anammox bacteria were first identified in sewage treatment systems and were later proven to exist widely in natural ecosystems. To better understand the relationship between the anammox reaction and different systems, and to maintain the stability of the nitrogen cycle, anammox functional microorganisms found in different natural environments were summarized. In addition, anammox nitrogen production rate and the contribution of anammox to nitrogen were discussed under different ecological environments. A literature analysis showed that the contribution rate of nitrogen removal of anammox was the highest in the Terrestrial ecosystem, up to 87.5%. The Terrestrial ecosystem is more likely to form an anoxic or even anaerobic environment conducive to anaerobic ammoxidation. Therefore, the control of DO is an important factor in the activity of anaerobic ammoxidation. Other environmental factors affecting the contribution of anammox to nitrogen removal include temperature, pH, organic matter content, inorganic nitrogen concentration, and salinity. However, the dominant influencing factors of anammox reactions in different ecosystems are evidently different. Therefore, the mechanism of the impact of different environmental factors on the anaerobic ammonia oxidation process is necessary to discuss. This provides a scientific basis for the global nitrogen cycle and is of great significance to improve nitrogen’s biogeochemical cycle in the ecosystem.

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“…Kuenenia also being detected. Clearly, many microbial niches in the soil were found to support the ecological and physiological functions of different anammox bacteria [101].…”

Section: Anammox In Terrestrial Ecosystemsmentioning

confidence: 99%

Nitrogen Contribution Rate of Anammox in Different Systems and Its Relationship with Environmental Factors

Cui¹,

Zhang

2023

Water

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“…At high latitudes, the reduced growth rate of anammox bacteria is due to reduced cytoplasmic density, lower enzyme activity, and low mass transfer rate [46]. Yu et al used 13C-DNA stable isotope probes combined with Illumina MiSeq high-throughput sequencing technology to analyze purple rice soils and found that anammox bacteria grow best at 25 • C [47]. The slow growth of anammox bacteria is the biggest obstacle to the development of this process.…”

Section: Environmental Factors Affecting the Growth And Adaptation Of...mentioning

confidence: 99%

Advances in the Efficient Enrichment of Anammox Bacteria

Wen

Jian

et al. 2023

Water

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Anaerobic ammonia oxidation (anammox) process is known as a low-energy and environmentally friendly process for treating nitrogen-rich wastewater. Anammox bacteria are the key microorganisms to achieve this biological process. However, the efficient enrichment of anammox bacteria has been a bottleneck for its practical application because of their slow growth and high sensitivity, and no pure culture has been found. Therefore, the development of efficient anammox bacterial enrichment techniques is of great theoretical and application value. Solving the problem of anammox bacterial activity and improving the process denitrification performance is one of the current research hotspots. In this paper, three aspects of anammox bacteria are described in terms of their physiological properties, environmental influencing factors, and short-term starvation tolerance; a systematic review of the latest research progress in accelerating the activity of anammox bacteria using enrichment strategies for process regulation, the construction of granulation models, suspended sludge biomass management, and strain preservation. Finally, the future frontier development of anammox bacteria was discussed and foreseen.

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Possible effects of pesticide on biological nitrogen removal in wastewater treatment processes: A review

Zungu,

Mpongwana,

Bux

2024

Water & Environment J

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The study filled a significant gap in our understanding of the possible effects of pesticide contamination on nitrogen removal in wastewater treatment. Pesticides, which are extensively utilized in agriculture, can enter wastewater treatment plants (WWTPs) through a variety of routes, including runoff and leaching. Biological wastewater treatment processes rely on the coordinated activity of microorganisms to effectively remove pollutants from the systems. Therefore, understanding the structure of microbial communities and their relationships to changing environmental conditions is crucial for the development and optimization of these systems. While limited research exists on the impact of pesticides on nitrogen removal in wastewater treatment, this study extrapolated findings from existing literature on pesticide impacts in soil environments. The research identified that pesticide concentrations in wastewater range from 1 to 16 000 ng l−1, raising concerns about environmental consequences. It was shown that pesticides could significantly alter nitrogen removal processes by affecting microbial populations and enzymatic pathways. Despite lower pesticide concentrations in wastewater than in soil, even trace levels could impede nitrification and denitrification processes. The study emphasized the importance of conducting extensive investigations on pesticide impacts in wastewater systems, considering the specific variables and treatment processes involved. This review increased worldwide understanding on the topic by laying the groundwork for future research and emphasizing the importance of reducing pesticide impacts on wastewater treatment to safeguard the environment and public health.

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Anammox bacterial abundance and diversity in different temperatures of purple paddy soils by 13C-DNA stable-isotope probing combined with high-throughput sequencing

Cited by 3 publications

References 50 publications

Nitrogen Contribution Rate of Anammox in Different Systems and Its Relationship with Environmental Factors

Nitrogen Contribution Rate of Anammox in Different Systems and Its Relationship with Environmental Factors

Advances in the Efficient Enrichment of Anammox Bacteria

Possible effects of pesticide on biological nitrogen removal in wastewater treatment processes: A review

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