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Bdellovibrio-and-like organisms (BALOs) 1

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CHK1 1

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Temporal Dynamics and Performance Association of the Tetrasphaera-Enriched Microbiome for Enhanced Biological Phosphorus Removal Article

Hui Wang, Yubo Wang, Guoqing Zhang, Ze Zhao, Feng Ju

Engineering 2023, Volume 29, Issue 10,   Pages 168-178 doi: 10.1016/j.eng.2022.10.016

Abstract: have been recently identified based on the 16S ribosomal RNA (rRNA) gene as among the most abundant polyphosphate-accumulatingorganisms (PAOs) in global full-scale wastewater treatment plants (WWTPs) with enhanced biological phosphorusHowever, it is unclear how Tetrasphaera PAOs are selectively enriched in the context of theof 1 mg·L−1 allylthiourea promoted the coselection of Tetrasphaera PAOsand Microlunatus PAOs and sharply reduced the relative abundance of both ammonia oxidizer <

Keywords： Enhanced biological phosphorus removal (EBPR)     Polyphosphate-accumulating organisms (PAOs)     Tetrasphaera    

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Short-term effects of excessive anaerobic reaction time on anaerobic metabolism of denitrifying polyphosphate- accumulating organisms linked to phosphorus removal and N

Gang GUO, Yayi WANG, Chong WANG, Hong WANG, Mianli PAN, Shaowei CHEN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 616-624 doi: 10.1007/s11783-013-0505-4

Abstract: The short-term effect of anaerobic reaction time (AnRT) (i.e., 90, 120 and 150 min) on the denitrifying phosphorus (P) removal performance and N O production was examined using a denitrifying enhanced biologic phosphorus removal (EBPR) sludge acclimatized with mixed acetate (HAc) and propionate (Pro) (in the molar ratio 3∶1) as carbon sources. The results showed that when the AnRT was prolonged from 90 to 150 min, the anaerobic polyhydroxyalkanoate (PHA) synthesis was decreased by 15.3%. Moreover, the ineffective PHA consumption occurred in anaerobic phases and contributed to an increased accumulation and higher free nitrous acid (FNA) concentrations (≥0.001–0.0011 mg HNO -N/L) in the subsequent anoxic phases, causing a severe inhibition on anoxic P-uptake and denitrification. Accordingly, the total nitrogen (TN) and total phosphorus (TP) removal efficiencies dropped by approximately 6.3% and 85.5%, respectively; and the ratio of anoxic N O-N production to TN removal increased by approximately 3.8%. The fluorescence in situ hybridization (FISH) analysis revealed that the sludge was mainly dominated by (62.0% (SE = 1.5%)). In conclusion, the short-term excessive anaerobic reaction time negatively impacted denitrifying P removal performance and stimulated more N O production, and its effect on P removal was more obvious than that on nitrogen removal.

Keywords： Denitrifying phosphorus removal     anaerobic reaction time     nitrous oxide     polyhydroxyalkanoate     free nitrous acid     fluorescence in-situ hybridization    

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The Performances of Aerobic and Anaerobic Phosphorus Uptak e and theCharacters of Microorganism in MB（A2/O）Craft

Wu Jian,Wang Shihe

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 191-195

Abstract: The results indicate that the phosphate accumulating organisms take up 20%~40% of active sludge.electron acceptor to have denitrifying phosphorus removal and take up approximately 35. 66%~67. 83% of PAOs

Keywords： aerobic phosphorus uptake     denitrifying phosphorus removal     phosphate accumulating organisms(PAOs)     electron    

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Simulation of long-term nutrient removal in a full-scale closed-loop bioreactor for sewage treatment: an example of Bayesian inference

Zheng LI,Rong QI,Wei AN,Takashi MINO,Tadashi SHOJI,Willy VERSTRAETE,Jian GU,Shengtao LI,Shiwei XU,Min YANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 534-544 doi: 10.1007/s11783-014-0660-2

Abstract: The anoxic phosphate uptake by polyphosphate accumulating organisms (PAO) contributed 71.2% of the total

Keywords： Bayesian inference     biological nutrient removal     closed-loop bioreactor     oxidation ditch     denitrifying polyphosphateaccumulating organisms    

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Short-term effect of temperature variation on the competition between PAOs and GAOs during acclimation

Nanqi REN, Han KANG, Xiuheng WANG, Nan LI

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 277-282 doi: 10.1007/s11783-010-0226-x

Abstract: processes was used to investigate the impact of the temperature shock on the competition between phosphorus-accumulatingorganisms (PAOs) and glycogen accumulating organisms (GAOs) in start-up stage.PAOs and GAOs were analyzed by fluorescent in situ hybridization (FISH), and intracellular polyphosphateIn the competition process, organisms of tetrad forming organisms (TFOs)-like shape which were consideredWith the evidence of poly-P granules containing by Neisser-straining and result of FISH, these organisms

Keywords： fluorescent in situ hybridization (FISH)     tetrad forming organisms (TFOs)     temperature variation     enhanced    

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Effects of nitrite on phosphate uptake in anaerobic-oxic process

LI Jie, XIONG Biyong, ZHANG Shude, YANG Hong, ZHANG Jie

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 39-42 doi: 10.1007/s11783-007-0007-3

Abstract: than that of DPB The experiment results revealed that nitrite would bring toxic action to phosphate-accumulatingorganisms (PAOs) when NO-N"e93.7 mg/L.

Keywords： effluent     PAOs     experiment     phosphate-accumulating     phosphorus removal    

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Denitrification and phosphorus uptake by DPAOs using nitrite as an electron acceptor by step-feed strategies

Bin MA, Shuying WANG, Guibing ZHU, Shijian GE, Junmin WANG, Nanqi Ren, Yongzhen PENG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 267-272 doi: 10.1007/s11783-012-0439-2

Abstract: Denitrifying phosphorus accumulating organisms (DPAOs) using nitrite as an electron acceptor can reduce

Keywords： denitrifying phosphate accumulating organisms (DPAOs)     denitrification     phosphorus uptake     nitrite     step-feed    

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Reuse of heavy metal-accumulating

Dongdong MA,Hongwen GAO

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 952-959 doi: 10.1007/s11783-013-0619-8

Abstract: The heavy metal-accumulating (L.) was investigated where heavy metals were desorbed by a facile acid-treatment

Keywords： heavy metals     Cynondon dactylon     acid-treatment     adsorption     recycling    

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Isolation and application of predatory

Ran Yu, Shiwen Zhang, Zhoukai Chen, Chuanyang Li

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 1, doi: 10.1007/s11783-017-0900-3

Abstract: -and-like organisms (BALOs) are a group of ubiquitous and obligate predatory bacteria and commonly used

Keywords： Bdellovibrio-and-like organisms (BALOs)     Biolysis     Activated sludge     Dewaterability     Predation    

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Transformer2 proteins protect breast cancer cells from accumulating replication stress by ensuring productive

Andrew Best,Katherine James,Gerald Hysenaj,Alison Tyson-Capper,David J. Elliott

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2,   Pages 186-195 doi: 10.1007/s11705-015-1540-4

Abstract: Increased expression levels of the RNA splicing regulator Transformer2 (abbreviated Tra2 ) have been reported in several types of cancer. Recent work has revealed an intimate cross-regulation between Tra2 and the highly similar Tra2 protein in human breast cancer cells, though these two proteins are encoded by separate genes created by a gene duplication that occurred over 500 million years ago. This cross-regulation involves splicing control of a special class of exons, called poison exons. Down-regulation of Tra2 reduces splicing inclusion of a poison exon in the mRNA encoding Tra2 , thereby up-regulating Tra2 protein expression. This buffers any splicing changes that might be caused by individual depletion of Tra2 alone. Discovery of this cross-regulation pathway, and its by-pass by joint depletion of both human Tra2 proteins, revealed Tra2 proteins are essential for breast cancer cell viability, and led to the identification of important targets for splicing control. These exons include a critical exon within the checkpoint kinase 1 (CHK1) gene that plays a crucial function in the protection of cancer cells from replication stress. Breast cancer cells depleted for Tra2 proteins have reduced CHK1 protein levels and accumulate DNA damage. These data suggest Tra2 proteins and/or their splicing targets as possible cancer drug targets.

Keywords： RNA splicing     gene expression     breast cancer     DNA damage     CHK1    

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The Industry of Genetic Engineering

Shi Yuanchun

Strategic Study of CAE 2000, Volume 2, Issue 7,   Pages 34-38

Abstract:

This article explains that modern biotechnology not only has a powerful spreading, driving force and economic value, but it also reserves a great potential to relax the global pressures from population, food, natural resources and environment. None of ohter technologies have such a power, or can replace biotechnology. The article also discusses the main contents of biotechnology and its new trends of industrialization. The author holds GMO food must be put in order by both science and relevant regulations, after reviewed the background and new trends of present GMO debate. The current debate has focused on the public acceptability, trade benefit and relevant policy on GMO food. GMO food will only be interrupted for the time being, and will have another development tide under the supervision of relevant laws and regulation. Finally, the paper proposes suggestions for the countermeasure and attitude that China should hold during the development and industrialization of modern biotechnology.

Keywords： genetic engineering     industry     gene modified organisms (GMO)     countermeasure    

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Ant colony optimization for assembly sequence planning based on parameters optimization

Zunpu HAN, Yong WANG, De TIAN

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 393-409 doi: 10.1007/s11465-020-0613-3

Abstract: Second, an algorithm called SOS-ACO that combines symbiotic organisms search (SOS) and ant colony optimization

Keywords： assembly sequence planning     ant colony optimization     symbiotic organisms search     parameter optimization    

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Salt Lake Agriculture and Its Development Strategy

Kong Fanjing , Zheng Mianping , Zhang Hongxia , Li Zhen , Wang Liwei

Strategic Study of CAE 2019, Volume 21, Issue 1,   Pages 148-152 doi: 10.15302/J-SSCAE-2019.01.021

Abstract:

 China has numerous salt lakes, and the development of salt lake agriculture is of realistic and strategic significance in desert control, ecological environment protection, economic growth in the west, and development of featured agricultures in semi-arid and arid regions. As world population grows, food and fresh water shortage is aggravated, and thus developing the salt lake agriculture becomes essential in guaranteeing human food security. Strategic studies on the salt lake agriculture becomes especially urgent. This paper depicts recent achievements of the salt lake agriculture and identifies the problems in salt lake agriculture development. Finally, suggestions are proposed on innovation-driven development of the salt lake agriculture, including enrolling it into national science and technology planning, and zoning saline-alkali land in salt lake basins by functions.

Keywords： salt lake agriculture     salt lake ecosystem     salt lake organisms    

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Identification of pakchoi cultivars with low cadmium accumulation and soil factors that affect their cadmium uptake and translocation

Lin WANG,Yingming XU,Yuebing SUN,Xuefeng LIANG,Dasong LIN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 877-887 doi: 10.1007/s11783-014-0676-7

Abstract: The selection and use of low-Cd-accumulating cultivar (LCAC) has been proposed as one of the promisingThe plot experiment further confirmed the consistency and genotypic stability of the low-Cd-accumulating

Keywords： cadmium contamination     low-cadmium-accumulating cultivar (LCAC)     genotype variation     soil factor     translocation    

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Design of Photobioreactors for Mass Cultivation of Photosynthetic Organisms Review

Qingshan Huang, Fuhua Jiang, Lianzhou Wang, Chao Yang

Engineering 2017, Volume 3, Issue 3,   Pages 318-329 doi: 10.1016/J.ENG.2017.03.020

Abstract:

Photosynthetic microorganisms are important bioresources for producing desirable and environmentally benign products, and photobioreactors (PBRs) play important roles in these processes. Designing PBRs for photocatalysis is still challenging at present, and most reactors are designed and scaled up using semi-empirical approaches. No appropriate types of PBRs are available for mass cultivation due to the reactors’ high capital and operating costs and short lifespan, which are mainly due to a current lack of deep understanding of the coupling of light, hydrodynamics, mass transfer, and cell growth in efficient reactor design. This review provides a critical overview of the key parameters that influence the performance of the PBRs, including light, mixing, mass transfer, temperature, pH, and capital and operating costs. The lifespan and the costs of cleaning and temperature control are also emphasized for commercial exploitation. Four types of PBRs—tubular, plastic bag, column airlift, and flat-panel airlift reactors are recommended for large-scale operations. In addition, this paper elaborates the modeling of PBRs using the tools of computational fluid dynamics for rational design. It also analyzes the difficulties in the numerical simulation, and presents the prospect for mechanism-based models.

Keywords： Photobioreactor     Solar energy     Photosynthesis     Hydrodynamics     Flashing-light effect    

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Title Author Date Type Operation

Temporal Dynamics and Performance Association of the Tetrasphaera-Enriched Microbiome for Enhanced Biological Phosphorus Removal

Hui Wang, Yubo Wang, Guoqing Zhang, Ze Zhao, Feng Ju

Journal Article

Short-term effects of excessive anaerobic reaction time on anaerobic metabolism of denitrifying polyphosphate- accumulating organisms linked to phosphorus removal and N

Gang GUO, Yayi WANG, Chong WANG, Hong WANG, Mianli PAN, Shaowei CHEN

Journal Article

The Performances of Aerobic and Anaerobic Phosphorus Uptak e and theCharacters of Microorganism in MB（A2/O）Craft

Wu Jian,Wang Shihe

Journal Article

Simulation of long-term nutrient removal in a full-scale closed-loop bioreactor for sewage treatment: an example of Bayesian inference

Zheng LI,Rong QI,Wei AN,Takashi MINO,Tadashi SHOJI,Willy VERSTRAETE,Jian GU,Shengtao LI,Shiwei XU,Min YANG

Journal Article

Short-term effect of temperature variation on the competition between PAOs and GAOs during acclimation

Nanqi REN, Han KANG, Xiuheng WANG, Nan LI

Journal Article

Effects of nitrite on phosphate uptake in anaerobic-oxic process

LI Jie, XIONG Biyong, ZHANG Shude, YANG Hong, ZHANG Jie

Journal Article

Denitrification and phosphorus uptake by DPAOs using nitrite as an electron acceptor by step-feed strategies

Bin MA, Shuying WANG, Guibing ZHU, Shijian GE, Junmin WANG, Nanqi Ren, Yongzhen PENG

Journal Article

Reuse of heavy metal-accumulating

Dongdong MA,Hongwen GAO

Journal Article

Isolation and application of predatory

Ran Yu, Shiwen Zhang, Zhoukai Chen, Chuanyang Li

Journal Article

Transformer2 proteins protect breast cancer cells from accumulating replication stress by ensuring productive

Andrew Best,Katherine James,Gerald Hysenaj,Alison Tyson-Capper,David J. Elliott

Journal Article

The Industry of Genetic Engineering

Shi Yuanchun

Journal Article

Ant colony optimization for assembly sequence planning based on parameters optimization

Zunpu HAN, Yong WANG, De TIAN

Journal Article

Salt Lake Agriculture and Its Development Strategy

Kong Fanjing , Zheng Mianping , Zhang Hongxia , Li Zhen , Wang Liwei

Journal Article

Identification of pakchoi cultivars with low cadmium accumulation and soil factors that affect their cadmium uptake and translocation

Lin WANG,Yingming XU,Yuebing SUN,Xuefeng LIANG,Dasong LIN

Journal Article

Design of Photobioreactors for Mass Cultivation of Photosynthetic Organisms

Qingshan Huang, Fuhua Jiang, Lianzhou Wang, Chao Yang

Journal Article