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Ch10 MIcrobial ecology

Sinh thái học (Ecology)

Sinh thái học (Ecology)
Sinh thái học (Ecology) . cứu sinh thái học các nhóm ngành phân loại riêng lẻ như sinh thái học động vật, sinh thái học thực vật... hay sâu hơn nữa như sinh thái học tảo, sinh thái. sinh thái học nấm, sinh thái học chim, sinh thái học thú.... Đồng thời sinh thái học sử dụng các kiến thức của các môn học này mà sinh thái học có thể
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CH10

CH10
123doc.vn
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Đan mạch ecology laboratory

Đan mạch ecology laboratory
sử dụng mô hình eco lab đánh giá một số đặc trăng môi trường khu vực nuôi trồng thủy sản . trong đó có dùng mô hình ECO Lab trong gói phần mềm MIKE của Viện Thủy lực Đan Mạch để đánh giá chất lượng nước khu vực nuôi thủy sản biển dựa trên một. góp tới 40% sản lượng và 50% giá trị xuất khẩu. Kinh tế nuôi trồng thủy sản đang thu hút ngày càng nhiều lao động tham gia, qua đó góp phần tạo việc làm
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Eyewitness - Ecology

Eyewitness - Ecology
No living thing or group of living things exists in isolation. All organisms, both plants and animals, need energy and materials from the environment in order to survive, and the lives of all kinds of living things, or species, affect the lives of others. Ecology is the study of the relationships between living things (within species and between different species), and between them and their environment. Humans have always studied living things in their natural environment in order to hunt and to gather food, but as a scientific discipline ecology is relatively new. Ecologists do study species in their natural context (“in the field”) but they also carry out laboratory studies and experiments. . book is available from the Library of Congress. ISBN-13: 97 8-0 -7 56 6-1 38 7-7 (PLC) ISBN-13: 97 8-0 -7 56 6-1 39 6-9 (ALB) Color reproduction by Colourscan, Singapore. Eyewitness ECOLOGY (c) 2011 Dorling Kindersley, Inc. All Rights Reserved. Eyewitness Ecology (c) 2011 Dorling Kindersley,
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EFFECTS OF RESIDUAL COD ON MICROBIAL GROWTH KINETICS IN A NITRIFYING UCBR

EFFECTS OF RESIDUAL COD ON MICROBIAL GROWTH KINETICS IN A NITRIFYING UCBR
Three reactor set-ups were investigated, namely nitrification UCBR prior to coupling, coupled UCBR-packed bedsystem for nitrogen removal, and de-coupled recovering UCBR. Batch studies were conducted on the biofilmparticles taken from the UCBR. A mathematical model was developed to estimate the growth kinetics of thebiofilm autotrophic and heterotrophic bacteria. Heterotrophs was noted to accumulate on the nitrifying biofilm dueto the effect of residual COD from the packed bed column during the coupled reactor phase. The growth ofheterotrophs had affected the substrate removal rates, biofilm morphology, and growth kinetics of nitrifyingbacteria. For example, μm of ammonium oxidizing bacteria decreased from 0.55 to 0.19 d-1, while Ks increasedfrom 1.42 to 3.34 mg N/L. This study demonstrated that μm and Ks of the nitrify bacteria changed with the type ofsubstrate. Hence, growth kinetics would not be the same for nitrifying bacteria that is exposed to residual carbon ina coupled UCBR-packed bed system and a single UCBR that is fed on organic-carbon free substrate. . 4.45 + 0 .17 Phase 2 0 .19 + 0 .12 3.34 + 2.05 0.06 + 0.04 4 .14 + 0.29 1. 26 + 0 .13 5 .18 + 0.30 Phase 3 0.58 + 0.25 1. 57 + 0.22 0.05 + 0.08 3.58 + 0 .13 1. 04 +. 9.60 1. 00 1 This study 2 Hanaki et al., (19 90) 3 Harald and Dietmar (19 97) 4 Metcalf and Eddy (19 91) 5 Tijhuis et al. (19 95) 0.00 0.20 0.40 0.60 0.80 1. 00
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ANALYSIS OF MICROBIAL COMMUNITY STRUCTURE AND IN SITU ACTIVITY OF NITRIFYING BIOFILMS

ANALYSIS OF MICROBIAL COMMUNITY STRUCTURE AND IN SITU ACTIVITY OF NITRIFYING BIOFILMS
Wastewater biofilms are very complex multispecies biofilms, displaying considerable heterogeneity with respect toboth the microorganisms present and their physicochemical microenvironments. To understand the eco-physiologyof individual microorganisms in the biofilm, techniques and tools with a high spatial and temporal resolution arerequired for direct detection of the spatial distributions of microbial species and their activities in minimallydisturbed their natural habitats (e.g., biofilms). In this paper, we will, therefore, address the great potential of thecombined use of the current FISH technique and microelectrodes to study the microbial ecology of complexmicrobial communities such as biofilms. The combination of these two techniques will provide reliable and directinformation about relationships between in situ microbial activity and the occurrence of specific microorganismsin biofilms. As an example of the combined study, we will illustrate the in situ spatial organization ofammonia-oxidizing and nitrite-oxidizing bacteria on fine scale in autotrophic nitrifying biofilms by applying thefull-cycle of 16S rRNA approach followed by fluorescence in situ hybridization (FISH), which is linked to their insitu activity distributions at a similar resolution determined by use of microelectrodes. The combination of thesetechniques allows relating in situ microbial activity directly to occurrence of nitrifying bacteria population. . following ingredients: 20 0 µM NH 4 Cl, 50 µM NaNO 2 , 300 µM NaNO 3 , 570 µM Na 2 HPO 4 , 84 µM MgCl 2 ·6H 2 O, 20 0 µM CaCl 2 , and 27 0 µM EDTA (pH=7.0) coefficients of 1.38×10 -5 cm 2 s -1 for NH 4 + , 1 .23 ×10 -5 cm 2 s -1 for NO 2 - , and 1 .23 × 10 -5 cm 2 s -1 for NO 3 - at 20 °C were used for the calculations
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Characterization of the microbial community in the anaerobic/oxic/anoxic process combine

Characterization of the microbial community in the anaerobic/oxic/anoxic process combine
ABSTRACTIn this study, the microbial community in the anaerobic/oxic/anoxic (A/O/A) process combinedwith sludge ozonation and phosphorus recovery was characterized by using phosphorus uptakerate (PUR) analysis and PCR-cloning analysis. Despite effective phosphorus removal, PURanalysis indicated a lower activity of both polyphosphate-accumulating organisms (PAOs) anddenitrifying PAOs (DNPAOs) than in other systems utilizing DNPAOs. This result suggested thatendogenous denitrifying bacteria actively contributed to denitrification. The PCR-cloninganalysis revealed that Bacteroidetes was most prominent in the process, followed byBetaproteobacteria and Alphaproteobacteria. For Bacteroidetes, most of the sequences obtainedin this study were not closely related to isolates. On the other hand, for the Alphaproteobacteria,the genera Amaricoccus, Aminobacter, Hyphomicrobium, and Paracoccus, which have theability both to accumulate poly-β-hydroxybutyrate (PHB) and to reduce nitrate to nitrite, weredetected. For the Betaproteobacteria, which are major denitrifying bacteria in wastewatertreatment systems, the genera Dechloromonas and Zoogloea, were identified. Organismsbelonging to the family Comamonadaceae, some of which have been reported as being primarypoly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)-degrading denitrifying bacteria, alsoexisted in the system. Major PAOs/DNPAOs, Rhodocyclus-related PAOs and ActinobacterialPAOs, were not detected, suggesting that unknown PAOs/DNPAOs could have played animportant role for phosphorus removal . Res ., 31(4), 77 7 -78 6. Liu, Y. (2003). Chemically reduced excess sludge production in the activated sludge process, Chemosphere, 50(1), 1 -7. Muyzer, G.,. activated sludge, Int. J. Syst. Evol. Microbiol. 56(12), 275 7- 276 0. Saitou, N. and Nei, M. (19 87) . The neighbor-joining method: a new method for reconstructing
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BASIC UNITS OF ECOLOGY

BASIC UNITS OF ECOLOGY
. BASIC UNITS OF ECOLOGY After studying this chapter, you should be able to: 1. Define environment. 2. Define an ecosystem. 3. Identify the components of. example of an ecosystem. The forest is a more complex ecosystem. Can you identify some of the components of this ecosystem? The entire earth can be thought of
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Modeling and Simulation of Microbial Depolymerization Processes of Xenobiotic Polymers

Modeling and Simulation of Microbial Depolymerization Processes of Xenobiotic Polymers
. 283 Modeling and Simulation of Microbial Depolymerization Processes of Xenobiotic Polymers Masaji Watanabe and Fusako Kawai 12.1 Introduction Microbial depolymerization. general case. 300 12 Modeling and Simulation of Microbial Depolymerization Processes of Xenobiotic Polymers 12.4.2 Analysis of Enzymatic PLA Depolymerization
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Microbial Production of Amino Acids in Japan

Microbial Production of Amino Acids in Japan
. acetic acid in the cells of the Microbial Production of Amino Acids in Japan 73 Table 1. Amino acid production in Japan and the world in 1996 Amino acid Amount. for the host cells of produc- tion of l-hydroxyproline. Microbial Production of Amino Acids in Japan 83 Using E. coli cells in l-proline production as the
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Comparative behaviour and ecology of Neanderthals and Modern Humans

Comparative behaviour and ecology of Neanderthals and Modern Humans
. 5 Comparative behaviour and ecology of Neanderthals and Modern Humans An understanding of the ecology of any species must include a knowledge of what. levels of causality. I will now examine aspects of Neanderthal and Modern Human ecology from the perspective of resource acquisition with the view of comparing
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Tài liệu REPRODUCTIVE ECOLOGY OF TROPICAL FOREST PLANTS pdf

Tài liệu REPRODUCTIVE ECOLOGY OF TROPICAL FOREST PLANTS pdf
. levels of gene flow in tropical forest trees are of interest for several reasons. Many species of trees in tropical rain forests have densities of one reproductively. plexity of reproductive systems of plants in tropical lowland rain forests. At the community level, pollination mechanisms of tropical rain forest trees
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Tài liệu Rice-feeding Insects And Selected Natural Enemies In West Africa - Biology, Ecology, Identification doc

Tài liệu Rice-feeding Insects And Selected Natural Enemies In West Africa - Biology, Ecology, Identification doc
. i Rice-Feeding Insects and Selected Natural Enemies in West Africa Biology, ecology, identification E.A. Heinrichs and Alberto T. BarrionIllustrated. citation:Heinrichs EA, Barrion AT. 2004. Rice-feeding insects and selected natural enemies in West Africa: biology, ecology, identification. Los Baños (Philippines):
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Tài liệu Mountain Goats Ecology, Behavior, and Conservation of an Alpine Ungulate doc

Tài liệu Mountain Goats Ecology, Behavior, and Conservation of an Alpine Ungulate doc
. Dynamics 19112 Management and Conservation of Mountain Goats 20413 Long-Term Monitoring of Marked Individuals and Advances inEcology and Conservation 219Appendix. iiiFM:IP_Festa-Bianchet 9/7/07 1:19 PM Page iv Mountain Goats Ecology, Behavior, and Conservation of an Alpine Ungulate Marco Festa-BianchetSteeve D.
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Tài liệu Carnivore Ecology and Conservation A Handbook of Techniques pptx

Tài liệu Carnivore Ecology and Conservation A Handbook of Techniques pptx
. Turner, and Sacha SpectorMarine Mammal Ecology and Conservation: A Handbook of Techniques Ian L. Boyd, W. Don Bowen, and Sara J. Iverson Carnivore Ecology and. NewtonHabitat Management for Conservation: A Handbook of Techniques Malcolm Ausden Conservation and Sustainable Use: A Handbook of Techniques E.J. Milner-Gulland
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molecular techniques in the microbial ecology of fermented foods 2008 - cocolin & ercolini

molecular techniques in the microbial ecology of fermented foods 2008 - cocolin & ercolini
. Fermented Foods, Luca Cocolin and Danilo Ercolini (Eds.) (2008) Luca Cocolin • Danilo Ercolini Editors Molecular Techniques in the Microbial Ecology of Fermented Foods Luca Cocolin Dipartimento. on the microbiology of fermented foods, but this is the first to approach the subject from a novel point of view, reporting the new insights drawn in the microbial ecology of fermented foods. book takes into consideration both well-known fermented foods and non-European foods and describes the latest findings in the microbial ecology as determined by the application of molecular
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Microbial ecology of the oceans

Microbial ecology of the oceans
.. .Microbial Ecology of the Oceans Microbial Ecology of the Oceans Second Edition DAVID L KIRCHMAN College of Marine and Earth Studies, University of Delaware Copyright #... OVERVIEW about them But there is more to microbial ecology than just the study of heterotrophic bacteria The purpose of this chapter is to provide an overview of the book and of some important... retention of material in the surface layer of the oceans Because most of the DOC used by bacteria is respired and because of the small size of microbes, as much as 90 percent of primary production
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Microbial ecology of the oceans

Microbial ecology of the oceans
.. .Microbial Ecology of the Oceans Microbial Ecology of the Oceans Second Edition DAVID L KIRCHMAN College of Marine and Earth Studies, University of Delaware Copyright #... OVERVIEW about them But there is more to microbial ecology than just the study of heterotrophic bacteria The purpose of this chapter is to provide an overview of the book and of some important... retention of material in the surface layer of the oceans Because most of the DOC used by bacteria is respired and because of the small size of microbes, as much as 90 percent of primary production
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