Chapter 31

Chapter 31 - Chapter 31 Fungi Large multicellular...

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Chapter 31: Fungi Large, multicellular eukaryotes that occupy terrestrial environments *Fungi absorb their nutrition from other organisms—dead or alive. Fungi that absorb their nutrients from dead organisms are the world’s most important decomposers. Although a few types of organisms are capable of digesting the cellulose in plant cell walls, fungi and a handful of bacterial species are the only organisms capable of completely digesting both the lignin and cellulose that make up wood. Mutualists: living in association with other organisms that benefit their hosts *Because they recycle key elements such as carbon, nitrogen, and phosphorous and because they transfer key nutrients to plants, fungi have profound influence on productivity and biodiversity. Why Study Fungi? o Mycorrhizal: fungi that live in close association with plant roots o Saprophytes: fungi that make their living by digesting dead plant material o The carbon cycle: 1) the fixation of carbon by land plants—meaning that carbon in atmospheric CO2 is
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This note was uploaded on 04/15/2008 for the course LS 1 taught by Professor Thomas during the Winter '05 term at UCLA.

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Chapter 31 - Chapter 31 Fungi Large multicellular...

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