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Advanced vascular function discovered in a widespread moss

hal.structure.identifierUniversity of Tasmania [Hobart, Australia] [UTAS]
dc.contributor.authorBRODRIBB, T. J.
hal.structure.identifierUniversity of Tasmania [Hobart, Australia] [UTAS]
dc.contributor.authorCARRIQUÍ, M.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, Sylvain
hal.structure.identifierPurdue University [West Lafayette]
dc.contributor.authorMCADAM, S.A.M.
hal.structure.identifierHarvard University
dc.contributor.authorHOLBROOK, N.M.
dc.date.issued2020-03
dc.identifier.issn2055-026X
dc.description.abstractEnThe evolution of terrestrial plants capable of growing upwards into the dry atmosphere profoundly transformed the Earth. A transition from small, ‘non-vascular’ bryophytes to arborescent vascular plants during the Devonian period is partially attributed to the evolutionary innovation of an internal vascular system capable of functioning under the substantial water tension associated with vascular water transport. Here, we show that vascular function in one of the most widespread living bryophytes (Polytrichum commune) exhibits strong functional parallels with the vascular systems of higher plants. These parallels include vascular conduits in Polytrichum that resist buckling while transporting water under tension, and leaves capable of regulating transpiration, permitting photosynthetic gas exchange without cavitation inside the vascular system. The advanced vascular function discovered in this tallest bryophyte family contrasts with the highly inefficient water use found in their leaves, emphasizing the importance of stomatal evolution enabling photosynthesis far above the soil surface.
dc.language.isoen
dc.publisherNature Publishing Group
dc.subjectPlante vasculaire
dc.subjectBryophyte
dc.title.enAdvanced vascular function discovered in a widespread moss
dc.typeArticle de revue
dc.identifier.doi10.1038/s41477-020-0602-x
dc.subject.halSciences de l'environnement
bordeaux.journalNature Plants
bordeaux.page273-279
bordeaux.volume6
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-03157526
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03157526v1
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