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Warming-driven migration of core microbiota indicates soil property changes at continental scale
Wang, Shang; Bao, Xuelian; Feng, Kai; Deng, Ye; Zhou, Wenjun; Shao, Pengshuai; Zheng, Tiantian; Yao, Fei; Yang, Shan; Liu, Shengen; Shi, Rongjiu; Bai, Zhen; Xie, Hongtu; Yu, Jinghua; Zhang, Ying; Zhang, Yiping; Sha, Liqing; Song, Qinghai; Liu, Yuntong; Zhou, Jizhong; Zhang, Yuguang; Li, Hui; Wang, Qingkui; Han, Xingguo; Zhu, Yongguan; Liang, Chao
2021-12-15
Source PublicationSCIENCE BULLETIN
ISSN1385-8947
Volume426Pages:-
AbstractAnammox process is a cost saving biological nitrogen removal process. The shortage of anammox inoculum restricts the full-scale application. In the present study, an anammox consortium enrichment was successfully achieved in a single-stage reactor at full-scale with working volume of 117 m(3). The external dosing of sodium nitrite (NaNO2) and sodium acetate (NaAc) for the increase in TN removal was successively operated during 261 days' experiment. Multiple low-dose of NaNO2 stimulated the immediate responses of amoA and hzsA transcripts, and the high growth rates of those genes. The mRNA/DNA ratio of hzsA was 127 at the initial nitrite treatment, with the increase in the copy number of hzsA (growth rate of 0.20 d(-1)), and mRNA/DNA ratio decreased to 2 through 75 days' nitrite treatment. Low-dosage of NaAc (207002D333 mgCOD/L) was beneficial for anammox enrichment at both gene and transcript levels. The anammox bacteria took the dominance with the abundance of 17.76%. However, over-dosage of NaAc (417 mgCOD/L) gave rise to heterotrophs (Armatimonadetes_gp5, Thauera and Comamonas) and decreased the abundance of hzsA transcript and Candidatus Kuenenia. With 261 days' operation, TN removal rate and efficiency increased from 0 to 0.59 kgN/(m(3) d), and from 0% to 92%, respectively. The anammox activity reached 0.41 kgN/(kgMLSS d). The external dosage of NaNO2 and NaAc showed positive correlation with TN removal rate and hzsA trancripts.
Department中国科学院环境生物技术重点实验室
KeywordAnammox Transcript Gene expression Full-scale operation Microbial community
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46902
Collection中国科学院环境生物技术重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Xishuangbanna 666303, Peoples R China
4.Univ Oklahoma, Sch Civil Engn & Environm Sci, Inst Environm Genom, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
5.Chinese Acad Forestry, Inst Forest Ecol Environm & Protect, State Forestry Adm, Beijing 100091, Peoples R China
6.[Zhang, Yuguang
7.Chinese Acad Forestry, Key Lab Forest Ecol & Environm, State Forestry Adm, Beijing 100091, Peoples R China
8.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China
9.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Wang, Shang,Bao, Xuelian,Feng, Kai,et al. Warming-driven migration of core microbiota indicates soil property changes at continental scale[J]. SCIENCE BULLETIN,2021,426:-.
APA Wang, Shang.,Bao, Xuelian.,Feng, Kai.,Deng, Ye.,Zhou, Wenjun.,...&Liang, Chao.(2021).Warming-driven migration of core microbiota indicates soil property changes at continental scale.SCIENCE BULLETIN,426,-.
MLA Wang, Shang,et al."Warming-driven migration of core microbiota indicates soil property changes at continental scale".SCIENCE BULLETIN 426(2021):-.
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