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Abstract
Leaf reddening is well documented in terrestrial angiosperms, but has rarely been reported in seagrasses. In a survey of the world's six seagrass bioregions, we documented leaf reddening in 12 seagrass species from intertidal and shallow subtidal waters at 25 locations in the tropical Atlantic and tropical Indo-Pacific Oceans. Including additional observations of seagrasses with reddened leaves from Australia, the phenomenon is now documented in 15 seagrass species at 29 locations worldwide. Similar to terrestrial angiosperms, leaf reddening in seagrasses may relate to enhanced production of anthocyanins after exposure to one or more stressors.
Received: 2009-4-28
Accepted: 2009-9-24
Published Online: 2010-02-01
Published in Print: 2010-02-01
©2010 by Walter de Gruyter Berlin New York
