Stomatal pores with apertures that can be adjusted by changes in guard cell turgor have
facilitated plant success in dry environments. We explore their evolutionary origins, considering
recent findings from bryophytes. Unlike vascular plant stomata, which close to prevent water
loss, bryophyte stomata become locked open to promote spore desiccation. We find that the
families of ion channels, known to control stomatal movements in angiosperms, are ancient and
represented across extant land plants. However, although angiosperm guard cells express
specific ion channel genes, none appear specifically expressed in stomata-bearing moss tissues.
Given the evolutionary shift in stomatal function from promotion to prevention of water loss, we
postulate that ion channels adopted guard cell-specific functions after the divergence of
bryophytes.
%0 Journal Article
%1 sussmilch2018origins
%A Sussmilch, Frances
%A Roelfsema, M. Rob G.
%A Hedrich, Rainer
%D 2019
%J New Phytologist
%K , evolution, guard-cell ion-channel, myown stomata,
%P 84-90
%R 10.1111/nph.15593
%T On the origins of osmotically driven stomatal movements
%V 222
%X Stomatal pores with apertures that can be adjusted by changes in guard cell turgor have
facilitated plant success in dry environments. We explore their evolutionary origins, considering
recent findings from bryophytes. Unlike vascular plant stomata, which close to prevent water
loss, bryophyte stomata become locked open to promote spore desiccation. We find that the
families of ion channels, known to control stomatal movements in angiosperms, are ancient and
represented across extant land plants. However, although angiosperm guard cells express
specific ion channel genes, none appear specifically expressed in stomata-bearing moss tissues.
Given the evolutionary shift in stomatal function from promotion to prevention of water loss, we
postulate that ion channels adopted guard cell-specific functions after the divergence of
bryophytes.
@article{sussmilch2018origins,
abstract = {Stomatal pores with apertures that can be adjusted by changes in guard cell turgor have
facilitated plant success in dry environments. We explore their evolutionary origins, considering
recent findings from bryophytes. Unlike vascular plant stomata, which close to prevent water
loss, bryophyte stomata become locked open to promote spore desiccation. We find that the
families of ion channels, known to control stomatal movements in angiosperms, are ancient and
represented across extant land plants. However, although angiosperm guard cells express
specific ion channel genes, none appear specifically expressed in stomata-bearing moss tissues.
Given the evolutionary shift in stomatal function from promotion to prevention of water loss, we
postulate that ion channels adopted guard cell-specific functions after the divergence of
bryophytes.},
added-at = {2019-07-25T10:12:55.000+0200},
author = {Sussmilch, Frances and Roelfsema, M. Rob G. and Hedrich, Rainer},
biburl = {https://www.bibsonomy.org/bibtex/248c706280604d5248f56045c652bc47d/robroelfsema},
doi = {10.1111/nph.15593},
interhash = {7f3c13c7905e9259c1cfbc70d9d8bba4},
intrahash = {48c706280604d5248f56045c652bc47d},
journal = {New Phytologist},
keywords = {, evolution, guard-cell ion-channel, myown stomata,},
pages = {84-90},
timestamp = {2019-07-25T10:12:55.000+0200},
title = {On the origins of osmotically driven stomatal movements},
volume = 222,
year = 2019
}