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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1111/nph.18084
|2 doi
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|a pubmed24n1126.xml
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|a (DE-627)NLM338051384
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|a (NLM)35274312
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Navarro, Jocelyn
|e verfasserin
|4 aut
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| 245 |
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|a Phenotypic plasticity and selection on leaf traits in response to snowmelt timing and summer precipitation
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.04.2022
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|a Date Revised 10.05.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.
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|a Vegetative traits of plants can respond directly to changes in the environment, such as those occurring under climate change. That phenotypic plasticity could be adaptive, maladaptive, or neutral. We manipulated the timing of spring snowmelt and amount of summer precipitation in factorial combination and examined responses of specific leaf area (SLA), trichome density, leaf water content (LWC), photosynthetic rate, stomatal conductance and intrinsic water-use efficiency (iWUE) in the subalpine herb Ipomopsis aggregata. The experiment was repeated in three years differing in natural timing of snowmelt. To examine natural selection, we used survival, relative growth rate, and flowering as fitness indices. A 50% reduction in summer precipitation reduced stomatal conductance and increased iWUE, and doubled precipitation increased LWC. Combining natural and experimental variation, earlier snowmelt reduced soil moisture, photosynthetic rate and stomatal conductance, and increased trichome density and iWUE. Precipitation reduction reversed the mortality selection favoring high stomatal conductance under normal and doubled precipitation, and higher LWC improved growth. Earlier snowmelt is a strong signal of climate change and can change expression of leaf morphology and gas exchange traits, just as reduced precipitation can. Stomatal conductance and SLA showed adaptive plasticity under some conditions
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Ipomopsis aggregata
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|a adaptive plasticity
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|a leaf traits
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| 650 |
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|a phenotypic plasticity
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|a precipitation
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|a snowmelt timing
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|a stomatal conductance
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|a water-use efficiency
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|a Water
|2 NLM
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| 650 |
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|a 059QF0KO0R
|2 NLM
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| 700 |
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|a Powers, John M
|e verfasserin
|4 aut
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| 700 |
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|a Paul, Ayaka
|e verfasserin
|4 aut
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| 700 |
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|a Campbell, Diane R
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 234(2022), 4 vom: 10. Mai, Seite 1477-1490
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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|g volume:234
|g year:2022
|g number:4
|g day:10
|g month:05
|g pages:1477-1490
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|u http://dx.doi.org/10.1111/nph.18084
|3 Volltext
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