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dc.contributor.authorCardon, Zoe G.  Concept link
dc.contributor.authorGray, Dennis W.  Concept link
dc.contributor.authorLewis, Louise A.  Concept link
dc.date.accessioned2008-03-11T14:56:51Z
dc.date.available2008-03-11T14:56:51Z
dc.date.issued2008-02
dc.identifier.citationBioScience 58 (2008): 114-122en
dc.identifier.urihttps://hdl.handle.net/1912/2101
dc.descriptionAuthor Posting. © American Institute of Biological Sciences, 2008. This article is posted here by permission of American Institute of Biological Sciences for personal use, not for redistribution. The definitive version was published in BioScience 58 (2008): 114-122, doi:10.1641/B580206.en
dc.description.abstractMicroscopic, unicellular, free-living green algae are found in desert microbiotic crusts worldwide. Although morphologically simple, green algae in desert crusts have recently been found to be extraordinarily diverse, with membership spanning five green algal classes and encompassing many taxa new to science. This overview explores this remarkable diversity and its potential to lead to new perspectives on the diversity and evolution of green plants. Molecular systematic and physiological data gathered from desert taxa demonstrate that these algae are long-term members of desert communities, not transient visitors from aquatic habitats. Variations in desiccation tolerance and photophysiology among these algae include diverse evolutionary innovations that developed under selective pressures in the desert. Combined with the single embryophyte lineage to which more familiar terrestrial green plants belong, multiple desert green algal lineages provide independent evolutionary units that may enhance understanding of the evolution and ecology of eukaryotic photosynthetic life on land.en
dc.description.sponsorshipThis work was supported by grants from the National Aeronautics and Space Administration, Exobiology Program (EXB02-0042-0054) to L. A. L. and Z. G. C., from the National Science Foundation (DEB- 0529737) to L. A. L., and from the University of Connecticut Research Foundation to Z. G. C.en
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.publisherAmerican Institute of Biological Sciencesen
dc.relation.urihttps://doi.org/10.1641/B580206
dc.subjectBiodiversityen
dc.subjectChlorophytaen
dc.subjectDesert microbiotic crusten
dc.subjectDesiccationen
dc.subjectGreen algaeen
dc.titleThe green algal underground : evolutionary secrets of desert cellsen
dc.typeArticleen
dc.identifier.doi10.1641/B580206


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