Root trait responses to drought are more heterogeneous than leaf trait responses
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...
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| Veröffentlicht in: | Functional ecology 2020-11, Vol.34 (11), p.2224-2235 |
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| creator | Lozano, Yudi M. Aguilar‐Trigueros, Carlos A. Flaig, Isabel C. Rillig, Matthias C. Weiser, Martin |
| description | 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 free Plain Language Summary can be found within the Supporting Information of this article.
A free Plain Language Summary can be found within the Supporting Information of this article. |
| doi_str_mv | 10.1111/1365-2435.13656 |
| format | Article |
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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 free Plain Language Summary can be found within the Supporting Information of this article.
A free Plain Language Summary can be found within the Supporting Information of this article.</description><identifier>ISSN: 0269-8463</identifier><identifier>EISSN: 1365-2435</identifier><identifier>DOI: 10.1111/1365-2435.13656</identifier><language>eng</language><publisher>London: Wiley Subscription Services, Inc</publisher><subject>Diameters ; Drought ; Elongation ; Environmental changes ; Flowers & plants ; Forbs ; global change ; Grasses ; grassland ecosystem ; Greenhouses ; Herbivores ; Leaves ; Legumes ; Nutrients ; Phylogeny ; Plant diversity ; plant traits ; root diameter ; root tissue density ; Soil environment ; Species ; specific root length ; specific root surface area ; WinRhizo</subject><ispartof>Functional ecology, 2020-11, Vol.34 (11), p.2224-2235</ispartof><rights>2020 The Authors. published by John Wiley & Sons Ltd on behalf of British Ecological Society</rights><rights>2020. This article is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4226-830b99a3fac60299dd34f1d71815c448741ccf60e4c282d3cbddf49528e530fc3</citedby><cites>FETCH-LOGICAL-c4226-830b99a3fac60299dd34f1d71815c448741ccf60e4c282d3cbddf49528e530fc3</cites><orcidid>0000-0002-0967-8219</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2F1365-2435.13656$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2F1365-2435.13656$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,1417,1433,27924,27925,45574,45575,46409,46833</link.rule.ids></links><search><contributor>Weiser, Martin</contributor><creatorcontrib>Lozano, Yudi M.</creatorcontrib><creatorcontrib>Aguilar‐Trigueros, Carlos A.</creatorcontrib><creatorcontrib>Flaig, Isabel C.</creatorcontrib><creatorcontrib>Rillig, Matthias C.</creatorcontrib><creatorcontrib>Weiser, Martin</creatorcontrib><title>Root trait responses to drought are more heterogeneous than leaf trait responses</title><title>Functional ecology</title><description>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 free Plain Language Summary can be found within the Supporting Information of this article.
A free Plain Language Summary can be found within the Supporting Information of this article.</description><subject>Diameters</subject><subject>Drought</subject><subject>Elongation</subject><subject>Environmental changes</subject><subject>Flowers & plants</subject><subject>Forbs</subject><subject>global change</subject><subject>Grasses</subject><subject>grassland ecosystem</subject><subject>Greenhouses</subject><subject>Herbivores</subject><subject>Leaves</subject><subject>Legumes</subject><subject>Nutrients</subject><subject>Phylogeny</subject><subject>Plant diversity</subject><subject>plant traits</subject><subject>root diameter</subject><subject>root tissue density</subject><subject>Soil environment</subject><subject>Species</subject><subject>specific root length</subject><subject>specific root surface area</subject><subject>WinRhizo</subject><issn>0269-8463</issn><issn>1365-2435</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><sourceid>WIN</sourceid><recordid>eNqFkMtLAzEQxoMoWKtnrwHP2-a92aOUVoWCInoOaR590G5qkkX635t1xYMX5zAzDN9vZvgAuMVogktMMRW8IozySd-JMzD6nZyDESKiqSQT9BJcpbRDCDWckBF4eQ0hwxz1NsPo0jG0ySWYA7QxdOtNhjo6eAglbVx2Maxd60JXFBvdwr3T_i97DS683id381PH4H0xf5s9Vsvnh6fZ_bIyjBBRSYpWTaOp10Yg0jTWUuaxrbHE3DAma4aN8QI5ZogklpqVtZ6Vn6XjFHlDx-Bu2HuM4aNzKatd6GJbTirCeC0xqoksqumgMjGkFJ1Xx7g96HhSGKneNtWbpHqTvjtRCD4Qn9u9O_0nV4v5bOC-AK5dbwc</recordid><startdate>202011</startdate><enddate>202011</enddate><creator>Lozano, Yudi M.</creator><creator>Aguilar‐Trigueros, Carlos A.</creator><creator>Flaig, Isabel C.</creator><creator>Rillig, Matthias C.</creator><creator>Weiser, Martin</creator><general>Wiley Subscription Services, Inc</general><scope>24P</scope><scope>WIN</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7SS</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>RC3</scope><orcidid>https://orcid.org/0000-0002-0967-8219</orcidid></search><sort><creationdate>202011</creationdate><title>Root trait responses to drought are more heterogeneous than leaf trait responses</title><author>Lozano, Yudi M. ; Aguilar‐Trigueros, Carlos A. ; Flaig, Isabel C. ; Rillig, Matthias C. ; Weiser, Martin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4226-830b99a3fac60299dd34f1d71815c448741ccf60e4c282d3cbddf49528e530fc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Diameters</topic><topic>Drought</topic><topic>Elongation</topic><topic>Environmental changes</topic><topic>Flowers & plants</topic><topic>Forbs</topic><topic>global change</topic><topic>Grasses</topic><topic>grassland ecosystem</topic><topic>Greenhouses</topic><topic>Herbivores</topic><topic>Leaves</topic><topic>Legumes</topic><topic>Nutrients</topic><topic>Phylogeny</topic><topic>Plant diversity</topic><topic>plant traits</topic><topic>root diameter</topic><topic>root tissue density</topic><topic>Soil environment</topic><topic>Species</topic><topic>specific root length</topic><topic>specific root surface area</topic><topic>WinRhizo</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lozano, Yudi M.</creatorcontrib><creatorcontrib>Aguilar‐Trigueros, Carlos A.</creatorcontrib><creatorcontrib>Flaig, Isabel C.</creatorcontrib><creatorcontrib>Rillig, Matthias C.</creatorcontrib><creatorcontrib>Weiser, Martin</creatorcontrib><collection>Wiley-Blackwell Open Access Titles</collection><collection>Wiley Free Content</collection><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><jtitle>Functional ecology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lozano, Yudi M.</au><au>Aguilar‐Trigueros, Carlos A.</au><au>Flaig, Isabel C.</au><au>Rillig, Matthias C.</au><au>Weiser, Martin</au><au>Weiser, Martin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Root trait responses to drought are more heterogeneous than leaf trait responses</atitle><jtitle>Functional ecology</jtitle><date>2020-11</date><risdate>2020</risdate><volume>34</volume><issue>11</issue><spage>2224</spage><epage>2235</epage><pages>2224-2235</pages><issn>0269-8463</issn><eissn>1365-2435</eissn><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 free Plain Language Summary can be found within the Supporting Information of this article.
A free Plain Language Summary can be found within the Supporting Information of this article.</abstract><cop>London</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/1365-2435.13656</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-0967-8219</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Diameters Drought Elongation Environmental changes Flowers & plants Forbs global change Grasses grassland ecosystem Greenhouses Herbivores Leaves Legumes Nutrients Phylogeny Plant diversity plant traits root diameter root tissue density Soil environment Species specific root length specific root surface area WinRhizo |
| title | Root trait responses to drought are more heterogeneous than leaf trait responses |
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