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Community structure of microbes in natural environments

David L. Kirchman.

in Processes in Microbial Ecology

February 2011; p ublished online December 2013 .

Chapter. Subjects: Animal Pathology and Diseases; Biochemistry. 10392 words.

Community structure refers to the taxonomic types of various microbes and their relative abundance in an environment. Traditional methods for identifying microbes rely on biochemical test...

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Degradation of organic material

David L. Kirchman.

in Processes in Microbial Ecology

February 2011; p ublished online December 2013 .

Chapter. Subjects: Animal Pathology and Diseases; Biochemistry. 10423 words.

This chapter focuses on the aerobic oxidation of organic material by microbes. Microbes account for about 50 per cent of primary production in the biosphere, but they probably account for...

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Ecology of viruses

David L. Kirchman.

in Processes in Microbial Ecology

February 2011; p ublished online December 2013 .

Chapter. Subjects: Animal Pathology and Diseases; Biochemistry. 10212 words.

In addition to grazing, another form of top-down control of microbes is lysis by viruses. There is probably a virus or several for every one organism in the biosphere, but the most common...

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Elements, biochemicals, and structures of microbes

David L. Kirchman.

in Processes in Microbial Ecology

February 2011; p ublished online December 2013 .

Chapter. Subjects: Animal Pathology and Diseases; Biochemistry. 7980 words.

Microbiologists know the basic biochemical make up of microbes, such as relative amounts of protein, RNA, and DNA in cells, while ecologists and biogeochemists use elemental ratios, most...

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Genomes and metagenomes of microbes and viruses

David L. Kirchman.

in Processes in Microbial Ecology

February 2011; p ublished online December 2013 .

Chapter. Subjects: Animal Pathology and Diseases; Biochemistry. 9785 words.

The sequencing of entire genomes of microbes grown in pure cultures is now routine. Sequencing studies have found that bacterial genomes range from 0.18 Mb (intracellular symbiont) to 13 Mb...

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Introduction

David L. Kirchman.

in Processes in Microbial Ecology

February 2011; p ublished online December 2013 .

Chapter. Subjects: Animal Pathology and Diseases; Biochemistry. 8129 words.

This chapter introduces the field of microbial ecology and some terms used in the rest of the book. Microbial ecology, which is the study of microbes in natural environments, is important...

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Introduction to geomicrobiology

David L. Kirchman.

in Processes in Microbial Ecology

February 2011; p ublished online December 2013 .

Chapter. Subjects: Animal Pathology and Diseases; Biochemistry. 10426 words.

Geomicrobiology, the marriage of geology and microbiology, is about the impact of microbes on subsurface environments in terrestrial systems or sediments. A distinguishing feature of...

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Microbial growth, biomass production, and controls

David L. Kirchman.

in Processes in Microbial Ecology

February 2011; p ublished online December 2013 .

Chapter. Subjects: Animal Pathology and Diseases; Biochemistry. 9428 words.

Soon after the discovery that bacteria are abundant in natural environments, the question arose as to whether or not they were active. Although the plate count method suggested that they...

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Microbial primary production and phototrophy

David L. Kirchman.

in Processes in Microbial Ecology

February 2011; p ublished online December 2013 .

Chapter. Subjects: Animal Pathology and Diseases; Biochemistry. 12145 words.

This chapter focuses on the most important process in the biosphere – primary production – the turning of carbon dioxide into organic material by higher plants and algae. While higher...

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The nitrogen cycle

David L. Kirchman.

in Processes in Microbial Ecology

February 2011; p ublished online December 2013 .

Chapter. Subjects: Animal Pathology and Diseases; Biochemistry. 10670 words.

Nitrogen is required for the biosynthesis of many compounds occurring in organisms and, unlike phosphorus – another element often limiting growth in many environments – can take on many...

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