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  • Sphagnum mooses are generally intolerant to drought but some level of the desiccation tolerance (DT) has been reported. We found that -- following initial de-hardening -- untreated Sphagnum shoots lacked DT; however, DT was induced by several hardening treatments, notably by slow dehydration, ABA, and freezing. In the field, sphagna in hollows and lawns developed DT several times during the growing season, responding to reduced precipitation and a lowered water table. Sphagnum protonemata failed to develop DT. We confirmed the morpho-physiological trade-off: in contrast to typical hollow sphagna, hummock species invest more resources in water retention (desiccation avoidance), while they have a lower ability to develop physiological DT.
  • Sphagnum mooses are generally intolerant to drought but some level of the desiccation tolerance (DT) has been reported. We found that -- following initial de-hardening -- untreated Sphagnum shoots lacked DT; however, DT was induced by several hardening treatments, notably by slow dehydration, ABA, and freezing. In the field, sphagna in hollows and lawns developed DT several times during the growing season, responding to reduced precipitation and a lowered water table. Sphagnum protonemata failed to develop DT. We confirmed the morpho-physiological trade-off: in contrast to typical hollow sphagna, hummock species invest more resources in water retention (desiccation avoidance), while they have a lower ability to develop physiological DT. (en)
Title
  • Desiccation tolerance of Sphagnum revisited: a puzzle resolved
  • Desiccation tolerance of Sphagnum revisited: a puzzle resolved (en)
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  • Desiccation tolerance of Sphagnum revisited: a puzzle resolved
  • Desiccation tolerance of Sphagnum revisited: a puzzle resolved (en)
skos:notation
  • RIV/67985939:_____/14:00432053!RIV15-GA0-67985939
http://linked.open...avai/riv/aktivita
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  • I, P(GAP505/10/0638), S
http://linked.open...iv/cisloPeriodika
  • 4
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 10392
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  • RIV/67985939:_____/14:00432053
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  • ecophysiology; moss; peatland (en)
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  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [C82159BABBC8]
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  • Plant Biology
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  • 16
http://linked.open...iv/tvurceVysledku
  • Hájek, Tomáš
  • Vicherová, E.
http://linked.open...ain/vavai/riv/wos
  • 000337613000010
issn
  • 1435-8603
number of pages
http://bibframe.org/vocab/doi
  • 10.1111/plb.12126
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