Nitrogen-associated niche characteristics and bacterial community estimated by 15N-DNA-stable isotope probing in one-stage partial nitritation/anammox process with different ammonium loading

Retracted: Niches of nine mangrove species in a Sonneratia apetala‐colonized area of Dongzhai Harbor, Hainan Island, China

“…An important aspect of niche theory is the quantitative measurement of niche breadth (or niche width), niche similarity, and niche overlap (Du et al., 1997; Su et al, 2003). These aspects have been used in numerous niche‐based studies on different vegetation types and populations (Aiba et al., 2012; Arellano et al., 2014), including forest vegetation (Liu et al., 2018; Marinšek et al., 2015), desert vegetation (Chen et al., 2019), wetland vegetation (Alleman & Hester, 2011; Rojo et al., 2016), rare and endangered species (Adhikari et al., 2019; Iannella et al., 2018; Mays et al., 2018), microorganisms (Dann et al., 2019; Li et al., 2019; Trivedi et al., 2019), insects (Rodgers et al., 2019), and birds (Pagani‐Núñez et al., 2019). As a species that was introduced to China and planted in large numbers in the coastal areas of south China, Sonneratia apetala Buch.‐Ham inevitably occupies a certain ecological niche and competes for essential resources with native tree species, even potentially threatening the survival of native mangroves (Ren et al, 2007).…”

Enhanced nutrient removal from mixed black water by a microbial ultra-low weak electrical stimulated anaerobic-two stage anoxic/aerobic process

“…S8, Anaerolineae were present in the MEC unit under MUlWES. Previous studies have reported a reciprocal relationship between Anaerolineae and anaerobic ammonium oxidation bacteria, possibly surviving through the breakdown of soluble microbial products and EPS produced by anammox bacteria [30]. Therefore it is likely that anaerobic ammonium oxidation is present in this system.…”

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

“…Amplification was performed in 20 μL reaction mixtures, where DNA template 2 μL, TB Green ® Premix Ex Taq (Tli RNaseH Plus, Takara, Dalian, China) 10 μL, forward primer 1 μL (10 μM), reverse primer 1 μL (10 μM), filling the rest with ddwater. The reaction temperature and time of hzs B amplification: 95°C with 3 min; the 40 cycles of 95°C with 30 s, 59°C with 30 s, and 72°C with 30 s ( Li et al, 2019 ). Standard curves were obtained with 10-fold serial dilutions of the plasmid DNAs.…”

“…Twenty years ago, Strous et al (1999) proved the existence of oxidizing ammonia to nitrogen using nitrite as an electron acceptor in a denitrification fluidized bed reactor and named this process anaerobic ammonia oxidation or anammox. Anammox bacteria were detected in a permanently flooded fallow ravine paddy field, freshwater, and sludge using 13 C or 15 N isotope labeling techniques ( Zhou et al, 2016 ; Yang Y. et al, 2017 ; Yang X.-R. et al, 2017 ; Zhang et al, 2018 ; Li et al, 2019 ). The contribution of anammox to the nitrogen cycle varies significantly in different ecological environments ( Zhu, 2020 ).…”

“…DNA-based stable-isotope probing (DNA-SIP) has been widely applied to study microbial-driven biogeochemical functioning processes at the molecular level in complex environments ( Radajewski et al, 2003 ), link the specific metabolic function to microbial identification ( Pan et al, 2018 ; Li et al, 2019 ). For instance, DNA-SIP experiments have proved anammox reactions in paddy soils under different fertilization states but not at different temperatures ( Pan et al, 2018 ).…”