Chapter 17 Microbial Ecology Microbial Ecology: Microorganisms in soil, water, and other environments and how microorganisms act to chemically change their environments. Microbial ecologists study the biodiversity of microorganisms in nature and how different guilds interact in microbial communities. The activities of microorganisms in nature and monitor their effects on ecosystems
Chapter 17 Microbial Ecology Microbial Ecology: Microorganisms in soil, water, and other environments and how microorganisms act to chemically change their environments. Microbial ecologists study: the biodiversity of microorganisms in nature and how different guilds interact in microbial communities; The activities of microorganisms in nature and monitor their effects on ecosystems
Microbial Ecology Microorganisms in Nature Methods in Microbial Ecology Enrichment and isolation methods Identification and Quantification: Nucleic acid Probes, Fluorescent Antibodies, and Ⅴ iable counts Measurements of Microbial Activity in Nature Stable Isotopes and Their Use in Microbial Biogeochemistry Aquatic Habitats Terrestrial Environments Deep sea microbiology Hydrothermal Vents arbon cvcle
Microbial Ecology Microorganisms in Nature Methods in Microbial Ecology Enrichment and Isolation Methods Identification and Quantification: • Nucleic acid Probes, Fluorescent Antibodies, and Viable Counts Measurements of Microbial Activity in Nature Stable Isotopes and Their Use in Microbial Biogeochemistry Aquatic Habitats Terrestrial Environments Deep Sea Microbiology Hydrothermal Vents Carbon Cycle
8→83-3→3 (a) Individual Population Microorganisms in Nature Community 2 Community 1 6 CO+6H. O Oxic zone. Photic zone- cyanobacteria and c.H.O.+60 Chemoorganotrophic algae bacteria c.H.O.+60 6CO+6H. O A microbial community Sediments Anoxic zone structure in a lake ecosystem Community 3 1. Guild 1: methanogenic bacteria(co CH) homoacetogenic bacteria(Co,--acetate) 2. Guild 2: sulfate-reducing bacteria(SO-H,S) sulfur-reducing bacteria(S H S) 3. Guild 3: denitrifying bacteria (NO ferric iron-reducing bacteria (Fe Fe) 4: Guild 4: fermentative bacteria (fermenting sugars, amino and fatty acids
Microorganisms in Nature A microbial community structure in a lake ecosystem
The microorganisms and the microenvironment 15 1 5 3 Distance o (mm 3 Contour map of 02 3 3 6 concentration in a soil particle Distance(mm)
The microorganisms and the microenvironment Contour map of O2 concentration in a soil particle
The microorganisms and the microenvironment Microhabitats on a few Grains of soil Microcolony 6 Air Water Air
The microorganisms and the microenvironment