Environmental Factors Affecting the Growth of Photosynthetic Bacteria in Lakes

Environmental Factors Affecting the Growth of Photosynthetic Bacteria in Lakes PDF Author: Timothy Barrett Parkin
Publisher:
ISBN:
Category : Photosynthetic bacteria
Languages : en
Pages : 360

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Environmental Factors Affecting the Growth of Photosynthetic Bacteria in Lakes

Environmental Factors Affecting the Growth of Photosynthetic Bacteria in Lakes PDF Author: Timothy Barrett Parkin
Publisher:
ISBN:
Category : Photosynthetic bacteria
Languages : en
Pages : 360

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Book Description


The Influence of Light Quality on the Development of Photosynthetic Bacterial Blooms in Lakes

The Influence of Light Quality on the Development of Photosynthetic Bacterial Blooms in Lakes PDF Author: Timothy Barrett Parkin
Publisher:
ISBN:
Category : Photosynthetic bacteria
Languages : en
Pages : 426

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Anoxygenic Photosynthetic Bacteria

Anoxygenic Photosynthetic Bacteria PDF Author: R.E. Blankenship
Publisher: Springer Science & Business Media
ISBN: 0306479540
Category : Science
Languages : en
Pages : 1333

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Book Description
Anoxygenic Photosynthetic Bacteria is a comprehensive volume describing all aspects of non-oxygen-evolving photosynthetic bacteria. The 62 chapters are organized into themes of: Taxonomy, physiology and ecology; Molecular structure of pigments and cofactors; Membrane and cell wall structure: Antenna structure and function; Reaction center structure and electron/proton pathways; Cyclic electron transfer; Metabolic processes; Genetics; Regulation of gene expression, and applications. The chapters have all been written by leading experts and present in detail the current understanding of these versatile microorganisms. The book is intended for use by advanced undergraduate and graduate students and senior researchers in the areas of microbiology, genetics, biochemistry, biophysics and biotechnology.

Selected Water Resources Abstracts

Selected Water Resources Abstracts PDF Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 962

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Microbial Ecology in Reservoirs and Lakes

Microbial Ecology in Reservoirs and Lakes PDF Author: Haihan Zhang
Publisher: Frontiers Media SA
ISBN: 2889639436
Category :
Languages : en
Pages : 310

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Factors Influencing the Seasonal Changes in Primary Productivity of the Photosynthetic Bacteria of Crawford Lake, Ontario

Factors Influencing the Seasonal Changes in Primary Productivity of the Photosynthetic Bacteria of Crawford Lake, Ontario PDF Author: Shawn R. T. Severn
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
A naturally occurring population of photosynthetic bacteria, located in the meromictic Crawford Lake, was examined during two field seasons (1979-1981). Primary production, biomass, light intensity, lake transparency, pH and bicarbonate concentration were all monitored during this period at selected time intervals. Analysis of the data indicated that (l4C) bacterial photosynthesis was potentially limited by the ambient bicarbonate concentration. Once a threshold value (of 270 mg/l) was reached a dramatic (2 to 10 fold) increase in the primary productivity of the bacteria was observed. Light intensity appeared to have very little effect on the primary productivity of the bacteria, even at times when analyses by Parkin and Brock (1980a) suggested that light intensity could be limiting (i.e., 3.0-5.0 ft. candles). Shifts in the absorption maxima at 430 nrn of the .bacteriochlorophyll spectrum suggested that changes in the species or strain composition of the photosynthetic bacteria had occurred during the summer months. It was speculated that these changes might reflect seasonal variation in the wavelength of light reaching the bacteria. Chemocline erosion did not have the same effect on the population size (biomass) of the photosynthetic bacteria in Crawford Lake (this thesis) as it did in Pink Lake (Dickman, 1979). In Crawford Lake the depth of the chemocline was lowered with no apparent loss in biomass (according to bacteriochlorophyll data). A reverse current was. proposed to explain the observation. The photosynthetic bacteria contributed a significant proportion (10-60%) of the lake1s primary productivitya Direct evidence was obtained with (14C) labelling of the photosynthetic bacteria, indica.ting that the zooplankton were grazing the photosynthetic bacteria. This indicated that some of the photosynthetic bacterial productivity was assimilated into the food chain of the lake. Therefore, it was concluded that the photosynthetic bacteria made a significant contribution to the total productivity of Crawford Lake.

Microbiology

Microbiology PDF Author: Nina T. Parker
Publisher:
ISBN: 9781947172791
Category : Microbiology
Languages : en
Pages : 0

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Book Description
Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology's art program enhances students' understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Freshwater Microbiology

Freshwater Microbiology PDF Author: David C. Sigee
Publisher: John Wiley & Sons
ISBN: 0470026472
Category : Science
Languages : en
Pages : 516

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Book Description
This unique textbook takes a broad look at the rapidly expanding field of freshwater microbiology. Concentrating on the interactions between viruses, bacteria, algae, fungi and micro-invertebrates, the book gives a wide biological appeal. Alongside conventional aspects such as phytoplankton characterisation, seasonal changes and nutrient cycles, the title focuses on the dynamic and applied aspects that are not covered within the current textbooks in the field. Complete coverage of all fresh water biota from viruses to invertebrates Unique focus on microbial interactions including coverage of biofilms, important communities on all exposed rivers and lakes. New information on molecular and microscopical techniques including a study of gene exchange between bacteria in the freshwater environment. Unique emphasis on the applied aspects of freshwater microbiology with particular emphasis on biodegradation and the causes and remediation of eutrophication and algal blooms.

Green Photosynthetic Bacteria

Green Photosynthetic Bacteria PDF Author: J.M. Olson
Publisher: Springer Science & Business Media
ISBN: 1461310210
Category : Science
Languages : en
Pages : 315

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Book Description


Algal Adaptation to Environmental Stresses

Algal Adaptation to Environmental Stresses PDF Author: L.C. Rai
Publisher: Springer Science & Business Media
ISBN: 3642594913
Category : Science
Languages : en
Pages : 428

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Book Description
Algae, generally held as the principal primary producers of aquatic systems, inhabit all conceivable habitats. They have great ability to cope with a harsh environment, e.g. extremely high and low temperatures, suboptimal and supraoptimal light intensities, low availability of essential nutrients and other resources, and high concentrations of toxic chemicals, etc. A multitude of physiological, biochemical, and molecular strategies enable them to survive and grow in stressful habitats. This book presents a critical account of various mechanisms of stress tolerance in algae, many of which may occur in microbes and plants as well.