16: Microbial Ecology Last updated Save as PDF Page ID 8734 Boundless Boundless 16.1: Microbial Ecology 16.1A: Microbes and Ecosystem Niches 16.1B: Organization of Ecosystems 16.1C: Role of Microbes in Biogeochemical Cycling 16.1D: Microbial Environments and Microenvironments 16.2: Soil and Plant Microbiology 16.2A: Soil Composition 16.2B: Physical Properties of Soil 16.2C: Mycorrhiza 16.2D: Wetland Soils 16.2E: Endophytes and Plants 16.2F: Mycorrhizae- The Symbiotic Relationship between Fungi and Roots 16.2F: Plant Pathogens 16.2G: Nitrogen Fixation- Root and Bacteria Interactions 16.3: Aquatic Microbiology 16.3A: Marine Habitats 16.3B: Planktonic Communities 16.3C: Planktonic Food Webs 16.3D: Ocean Floor 16.3E: Cold-Seep Ecosystems 16.3F: The Deep Sea and Barophilism 16.3G: Sea Coral and Sea Anemone Zooxanthellae 16.3H: Sponge Communities 16.3I: Freshwater Environments 16.4: Nutrient Cycles 16.4A: Sources and Sinks of Essential Elements 16.4B: The Carbon Cycle 16.4C: Syntrophy and Methanogenesis 16.4D: The Phosphorus Cycle 16.4E: The Nitrogen Cycle 16.4F: The Sulfur Cycle 16.4G: The Iron Cycle 16.5: Microbial Symbioses 16.5A: Mutualism vs. Symbiosis 16.5B: The Rumen and Ruminant Animals 16.5C: Hydrothermal Vent Microbial Ecosystems 16.5D: Squid-Aliivibrio Symbiosis 16.5E: Mutualistic Relationships with Fungi and Fungivores 16.5F: Agrobacterium and Crown Gall Disease 16.5G: The Legume-Root Nodule Symbiosis 16.6: Microbial Bioremediation 16.6A: Microbial Ore Leaching 16.6B: Petroleum Biodegradation 16.6C: The Degradation of Synthetic Chemicals in Soils and Water Thumbnail : Hydrothermal vents are cracks in the earth’s crust where geothermally heated water leaks out.