A seagrass meadow spanning more than 111 miles in western Australia is a single plant — and the world's largest known organism, according to a study published this week.
DNA analysis revealed the meadow in Shark Bay was a single plant made from clones that grow from rhizomes, a type of stem that extends in the sand in multiple directions.P. australis"That effectively doubles the amount of [genetic] variation," Sinclair says.
"Having all this extra variation likely gives it an advantage to coping with a wider range in environments including the large change in salinity, or saltiness, of the water."The team is now looking at how different pieces of the plant can live in different local environments with varying amounts of salt, Sinclair says.
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