scholarly journals Molecular evidence of the existence of anaerobic ammonia oxidation bacteria in the gut of polychaete (Neanthes glandicincta)

2016 ◽  
Vol 1 (1) ◽  
pp. 19-29
Author(s):  
Meng Li ◽  
◽  
Ji-Dong Gu ◽  
Keyword(s):  
Ammonia Oxidation ◽  
Molecular Evidence ◽  
Anaerobic Ammonia Oxidation ◽  
Neanthes Glandicincta

Molecular evidence of the existence of anaerobic ammonia oxidation bacteria in the gut of polychaete (Neanthes glandicincta)

2016 ◽  
Vol 1 (1) ◽  
pp. 19 ◽  
Author(s):  
Meng Li ◽  
Ji-Dong GU
Keyword(s):  
Ammonia Oxidation ◽  
Coastal Sediments ◽  
Anammox Bacteria ◽  
Molecular Evidence ◽  
Rrna Gene ◽  
Natural Environments ◽  
Axial Distribution ◽  
Anaerobic Ammonia Oxidation ◽  
Neanthes Glandicincta

Neanthes are one of the most important groups of polychaete in coastal sediments, which play an important role on the nutrient cycling in coastal sediments. Here we report on the existence of anammox bacteria in the gut of polychaete Neanthes glandicincta based on the analysis of 16S rRNA gene and fluorescence in situ hybridization (FISH). Three distinct clusters of anammox bacteria are found in different gut sections of N. glandicincta, and one of them is considered as a novel, gut specific anammox bacteria after comparing with the anammox bacteria recovered from surrounding pre-digested sediment. The uniform axial distribution of anammox bacteria in different gut sections of N. glandicincta is also found in present study. These results extend our knowledge of microbial ecology of anammox bacteria in the natural environments.

Quantitative evaluation of inhibitory effect of various substances on anaerobic ammonia oxidation (anammox)

2017 ◽  
Vol 124 (3) ◽  
pp. 333-338 ◽  
Author(s):  
Tomotaka Nakamura ◽  
Yuhki Harigaya ◽  
Yuya Kimura ◽  
Megumi Kuroiwa ◽  
Yuhri Kurata ◽  
...  
Keyword(s):  
Quantitative Evaluation ◽  
Ammonia Oxidation ◽  
Inhibitory Effect ◽  
Anaerobic Ammonia Oxidation

Widespread of anaerobic ammonia oxidation bacteria in an eutrophic freshwater lake wetland and its impact on nitrogen cycle

2012 ◽  
Vol 32 (21) ◽  
pp. 6591-6598 ◽  
Author(s):  
王衫允 WANG Shanyun ◽  
祝贵兵 ZHU Guibing ◽  
曲冬梅 QU Dongmei ◽  
尹澄清 YIN Chengqing
Keyword(s):  
Nitrogen Cycle ◽  
Ammonia Oxidation ◽  
Freshwater Lake ◽  
Anaerobic Ammonia Oxidation

Anaerobic Ammonia Oxidation in Start-Up of Bench Scale ASBR

2014 ◽  
Vol 675-677 ◽  
pp. 633-637
Author(s):  
Ze Ya Wang ◽  
Li Ping Qiu ◽  
Li Xin Zhang ◽  
Jia Bin Wang
Keyword(s):  
Ammonia Oxidation ◽  
Ph Value ◽  
Operating Temperature ◽  
Granular Sludge ◽  
Anaerobic Granular Sludge ◽  
Ammonia Oxidizing Bacteria ◽  
Bench Scale ◽  
N Removal ◽  
Start Up ◽  
Anaerobic Ammonia Oxidation

A set of bench scale ASBR reactors with 0.5 L effective volume were carried out to culture anaerobic ammonia oxidizing bacteria, while the anaerobic granular sludge was inoculated into these reactors as well as the operating temperature is 30±1°C, HRT is 72h and pH is approximate 7.8 in this experiment. After 60 days running, these reactors appeared anaerobic ammonia oxidation phenomenon. When the influent NH4+-N and NO2--N concentrations were approximately 50 mg/L and 70 mg/L, the NH4+-N, NO2--N and TN removal were 80%, 90% and 70%, respectively, the ratio of the NH4+-N and NO2--N removal and NO3--N production is approximately 1:1.5:0.25, close to the theoretical valve of 1:1.32:0.26 and that mainly accord with the chemical equilibrium of anaerobic ammonia oxidation mode. Furthermore, when the phenomenon of anaerobic ammonia oxidation appeared, effluent pH value was slightly higher than influent and the sludge become red.

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