dc.contributor.author
Lozano, Yudi M.
dc.contributor.author
Aguilar-Trigueros, Carlos A.
dc.contributor.author
Flaig, Isabel C.
dc.contributor.author
Rillig, Matthias C.
dc.date.accessioned
2020-11-09T09:46:56Z
dc.date.available
2020-11-09T09:46:56Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/28316
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-28066
dc.description.abstract
Drought can strongly modify plant diversity and ecosystem processes. As droughts are expected to intensify in the future, it is important to better understand plant responses to this global driver. Root traits are an overlooked but powerful predictor of plant responses to drought because they are in direct contact with the soil environment and are responsible for taking up nutrients and water. Here, we determine which root traits are sensitive to drought and the magnitude of that response. We also tested whether root trait relationships with shoot biomass are affected by drought and to what extent all these responses depend on plant species identity. To do so, we conducted a glasshouse experiment with 24 plant species grown in pots (10 replicates per species), which included grasses, forbs and legumes. All replicates were well watered during the first month and then half of them were kept under drought (30% water holding capacity [WHC]), with the other half serving as control (70% WHC). After 2 months of treatment, leaf and root traits were measured. Leaf traits had a strong and more uniform response to drought compared to root traits. Root trait responses were variable and differed among plant species. Overall, grasses and several forbs had increased root diameter with drought while forbs had decreased specific root surface area (SRSA) and specific root length (SRL). Increase of root diameter and reduction of root elongation or sacrificing fine roots are different strategies that may promote nutrient and water acquisition, depending on plant species identity. Our results identify changes in root morphological traits as mechanisms to likely tolerate drought and highlight that, although such drought responses are species-specific, they are phylogenetically clustered. A freePlain Language Summarycan be found within the Supporting Information of this article.
en
dc.format.extent
12 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
global change
en
dc.subject
grassland ecosystem
en
dc.subject
plant traits
en
dc.subject
root diameter
en
dc.subject
root tissue density
en
dc.subject
specific root length
en
dc.subject
specific root surface area
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie
dc.title
Root trait responses to drought are more heterogeneous than leaf trait responses
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.1111/1365-2435.13656
dcterms.bibliographicCitation.journaltitle
Functional Ecology
dcterms.bibliographicCitation.number
11
dcterms.bibliographicCitation.pagestart
2224
dcterms.bibliographicCitation.pageend
2235
dcterms.bibliographicCitation.volume
34
dcterms.bibliographicCitation.url
https://doi.org/10.1111/1365-2435.13656
refubium.affiliation
Biologie, Chemie, Pharmazie
refubium.affiliation.other
Institut für Biologie
refubium.funding
DEAL Wiley
refubium.note.author
Die Publikation wurde aus Open Access Publikationsgeldern der Freien Universität Berlin gefördert.
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
1365-2435
refubium.resourceType.provider
WoS-Alert