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March 5, 2004
"When nutrients are scarce, myxobacteria cells aggregate by chemotaxis into fruiting bodies. These fruiting bodies can take different shapes and colors, depending on the species. Within the fruiting bodies, cells begin as rod-shaped vegetative cells, and develop into rounded myxospores with thick cell walls. These myxospores, analogously to spores in other organisms, are meant to survive until nutrients are more plentiful. The fruiting process is thought to benefit myxobacteria by ensuring that cell growth is resumed with a group (swarm) of myxobacteria, rather than as isolated cells. Similar life cycles have developed among certain amoebae, called cellular slime molds." http://en.wikipedia.org/wiki/Myxobacteria Thomas Lee Elifritz http://elifritz.members.tlantic.net |
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