Screening and Characterization of Nitrite-Degrading Bacterial Isolates Using a Novel Culture Medium

Ma, Qingshan; He, Zengguo

doi:10.1007/s11802-020-4093-1

Cited by 6 publications

(3 citation statements)

References 38 publications

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“…YX‐6 isolated from shrimp‐pond water possessed the nirS gene which encodes nitrite reductase and showed the ability to convert toxic nitrite into nitrate. Ma and He (2020) also documented a member of Bacillus ( Bacillus subtilis M7‐1) isolated from a shrimp pond to be very efficient in removing nitrite from the water column by completely degrading nitrite‐N in 24 h with low dissolved‐oxygen consumption. Due to this capacity, many members of Bacillus species or strains have been applied to maintain water quality in aquaculture.…”

Section: Discussionmentioning

confidence: 99%

Isolation and screening of indigenous nitrifying bacteria to enhance nutrient recovery in an aquaponics system

Amin

Agustono

Ali

et al. 2023

J World Aquaculture Soc

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The recycling processes of aquaponic waste into fertilizers are highly dependent on the type and activity of nitrifying bacteria in the system. This study aims to find indigenous nitrifiers to enhance nutrient recovery in an aquaponics system. Twelve indigenous nitrifiers consisting of ammonia and nitrite‐degrading bacteria were isolated from a local earthen pond of Nile tilapia (Oreochromis niloticus), and two isolates (AQ4 and AQ12) were selected due to their highest capacity to degrade either ammonia or nitrate respectively. Based on the 16S rRNA gene sequences, these isolates were identified as Marinobacter nauticus (AQ4) with 98.64% similarity, and Bacillus sp. (AQ12) with 99.89% similarity. When these bacterial isolates were applied in aquaponics systems with bacterial enhancement (aquaponicsBE), the nutrient recovery was significantly higher compared to the control (aquaponicsctrl), indicated by a 500 g higher total harvested biomass. With a significance value of p < 0.05, aquaponicsBE gives 17% higher crude fat and protein retention in vegetables while in fish 14% higher crude fat was found. Energy retention in vegetables was 23% higher than in the control. Furthermore, fish grew better in the aquaponicsBE system, with 0.6%BW/day higher specific growth rate, and 0.05 better feed conversion ratio compared to that of fish reared in the control.

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Section: Discussionmentioning

confidence: 99%

Isolation and screening of indigenous nitrifying bacteria to enhance nutrient recovery in an aquaponics system

Amin

Agustono

Ali

et al. 2023

J World Aquaculture Soc

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“…Later investigations established the fact that some of the active cells were present in the environment that was not suitable under laboratory conditions and additional molecular evidences supported this observation (Roszak & Colwell, 1987). Previous studies have shown that certain species could grow better under its situ (Ma & He, 2020). Kaeberlein et al (2002) designed diffusion chambers that were successfully used for growing novel strains in a simulated natural environment.…”

Section: Introductionmentioning

confidence: 99%

Treatment of municipal wastewater by employing membrane bioreactors combined with efficient nitration microbial communities isolated by Isolation Chip with Plate Streaking technology

Zhang

Fang

et al. 2021

Water Environment Research

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In this research, we developed a method so‐called Isolation Chip with Plate Streaking (ICPS) to selectively enrich nitrifying microbial consortium for treating municipal wastewater. In batch experiment, these bacterial communities were able to remove NH3‐N in 72 h with an efficiency of 96%. Firmicutes, Bacteroidetes, and Proteobacteria species are dominant bacteria in these communities. When the bacterial communities were used in the membrane bioreactor under typical condition, the removal efficiency was 81.0%. In contrast, under the actual wastewater condition, the efficiency could reach 91.2%. All above results showed clearly that the consortium selected by our ICPS method could achieve high‐efficient NH3‐N removal, thus offering a reliable technique for screening functional microorganisms in the field of water treatment. Practitioner points ICPS technology was designed and used for screening specialized NH3‐N‐removing isolates. The screening process benefited the growth of the dominant nitrifying bacteria Firmicutes and Bacteroidetes. When the functional bacteria applied into the MBR, the NH3‐N removal efficiency was 91.2% under actual wastewater conditions.

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“…109,110 Some strains of Bacillus, such as A strain Pseudomonas aeruginosa G12 and Bacillus subtilis M7-1, have the function of deni-trication, which belongs to denitrifying reducing bacteria (DNB). 111,112 DNB can inhibit the growth of sulfate-reducing bacteria (SRB), which has been widely used in water quality repair, corrosion prevention and other elds to reduce VSCs production. 113,114 In other words, the addition of specic Bacillus strains can theoretically inhibit NH 3 and VSCs, but it lacks large numbers of practical experiments for demonstration.…”

mentioning

confidence: 99%

Reducing odor emissions from feces aerobic composting: additives

et al. 2021

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Screening and Characterization of Nitrite-Degrading Bacterial Isolates Using a Novel Culture Medium

Cited by 6 publications

References 38 publications

Isolation and screening of indigenous nitrifying bacteria to enhance nutrient recovery in an aquaponics system

Isolation and screening of indigenous nitrifying bacteria to enhance nutrient recovery in an aquaponics system

Treatment of municipal wastewater by employing membrane bioreactors combined with efficient nitration microbial communities isolated by Isolation Chip with Plate Streaking technology

Reducing odor emissions from feces aerobic composting: additives

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