Temperature heterogeneity over leaf surfaces: the contribution of the lamina microtopography
Temperature is spatially heterogeneous over leaf surfaces, yet the underlying mechanisms are not fully resolved. We hypothesized that the 3D leaf microtopography determines locally the amount of incoming irradiation flux at leaf surface, thereby driving the temperature gradient over the leaf surface...
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| Veröffentlicht in: | Plant, cell and environment cell and environment, 2017-10, Vol.40 (10), p.2174-2188 |
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| creator | Saudreau, Marc Ezanic, Amélie Adam, Boris Caillon, Robin Walser, Pascal Pincebourde, Sylvain |
| description | Temperature is spatially heterogeneous over leaf surfaces, yet the underlying mechanisms are not fully resolved. We hypothesized that the 3D leaf microtopography determines locally the amount of incoming irradiation flux at leaf surface, thereby driving the temperature gradient over the leaf surface. This hypothesis was tested by developing a model of leaf temperature heterogeneity that includes the development of the leaf boundary layer, the microtopography of the leaf surface and the physiological response of the leaf. Temperature distributions under various irradiation loads (1) over apple leaves based on their 3D microtopography, (2) over simulated flat (2D) apple leaves and (3) over 3D leaves with a transpiration rate distributed as in 2D leaves were simulated. Accuracy of the predictions was quantified by comparing model outputs and thermographic measurements of leaf surface temperature under controlled conditions. Only the model with 3D leaves predicted accurately the spatial heterogeneity of surface temperature over single leaves, whereas the mean temperature was well predicted by both 2D and 3D leaves. We suggest that in these conditions, the 3D leaf microtopography is the primary driver of leaf surface heterogeneity in temperature when the leaf is exposed to a light/heat source.
Temperature is spatially heterogeneous over leaf surfaces, yet the underlying mechanisms are not fully resolved. We developed a biophysical model to simulate the surface temperature heterogeneity over single leaves. We show that the microtopography of the leaf lamina generates a large temperature gradient (of up to 20 °C) especially when exposed to solar radiation. |
| doi_str_mv | 10.1111/pce.13026 |
| format | Article |
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Temperature is spatially heterogeneous over leaf surfaces, yet the underlying mechanisms are not fully resolved. We developed a biophysical model to simulate the surface temperature heterogeneity over single leaves. We show that the microtopography of the leaf lamina generates a large temperature gradient (of up to 20 °C) especially when exposed to solar radiation.</description><identifier>ISSN: 0140-7791</identifier><identifier>EISSN: 1365-3040</identifier><identifier>DOI: 10.1111/pce.13026</identifier><identifier>PMID: 28710812</identifier><language>eng</language><publisher>United States: Wiley Subscription Services, Inc</publisher><subject>Apples ; Biophysical Phenomena ; Boundary layers ; Computer simulation ; Controlled conditions ; energy balance ; heat ; Heterogeneity ; Hot Temperature ; Irradiation ; leaf boundary layer ; leaf temperature ; Leaves ; Life Sciences ; Malus - anatomy & histology ; Malus - physiology ; Mathematical models ; Models, Theoretical ; Plant Leaves - anatomy & histology ; Plant Leaves - physiology ; Plant Stomata - physiology ; Predictive control ; Radiation ; Reproducibility of Results ; Solar radiation ; Spatial distribution ; Spatial heterogeneity ; Surface temperature ; Temperature ; Temperature effects ; Temperature gradients ; Thermography ; Three dimensional models ; Transpiration ; Vegetal Biology</subject><ispartof>Plant, cell and environment, 2017-10, Vol.40 (10), p.2174-2188</ispartof><rights>2017 John Wiley & Sons Ltd</rights><rights>2017 John Wiley & Sons Ltd.</rights><rights>Attribution - ShareAlike</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4886-11da5f272dde007871f915a95ee18fd70d9df847695c5a3546c40d33cd266e0a3</citedby><cites>FETCH-LOGICAL-c4886-11da5f272dde007871f915a95ee18fd70d9df847695c5a3546c40d33cd266e0a3</cites><orcidid>0000-0003-1130-5785 ; 0000-0001-7964-5861 ; 0000-0002-1696-5881</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%2Fpce.13026$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fpce.13026$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,780,784,885,1417,1433,27924,27925,45574,45575,46409,46833</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/28710812$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-01604734$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Saudreau, Marc</creatorcontrib><creatorcontrib>Ezanic, Amélie</creatorcontrib><creatorcontrib>Adam, Boris</creatorcontrib><creatorcontrib>Caillon, Robin</creatorcontrib><creatorcontrib>Walser, Pascal</creatorcontrib><creatorcontrib>Pincebourde, Sylvain</creatorcontrib><title>Temperature heterogeneity over leaf surfaces: the contribution of the lamina microtopography</title><title>Plant, cell and environment</title><addtitle>Plant Cell Environ</addtitle><description>Temperature is spatially heterogeneous over leaf surfaces, yet the underlying mechanisms are not fully resolved. We hypothesized that the 3D leaf microtopography determines locally the amount of incoming irradiation flux at leaf surface, thereby driving the temperature gradient over the leaf surface. This hypothesis was tested by developing a model of leaf temperature heterogeneity that includes the development of the leaf boundary layer, the microtopography of the leaf surface and the physiological response of the leaf. Temperature distributions under various irradiation loads (1) over apple leaves based on their 3D microtopography, (2) over simulated flat (2D) apple leaves and (3) over 3D leaves with a transpiration rate distributed as in 2D leaves were simulated. Accuracy of the predictions was quantified by comparing model outputs and thermographic measurements of leaf surface temperature under controlled conditions. Only the model with 3D leaves predicted accurately the spatial heterogeneity of surface temperature over single leaves, whereas the mean temperature was well predicted by both 2D and 3D leaves. We suggest that in these conditions, the 3D leaf microtopography is the primary driver of leaf surface heterogeneity in temperature when the leaf is exposed to a light/heat source.
Temperature is spatially heterogeneous over leaf surfaces, yet the underlying mechanisms are not fully resolved. We developed a biophysical model to simulate the surface temperature heterogeneity over single leaves. We show that the microtopography of the leaf lamina generates a large temperature gradient (of up to 20 °C) especially when exposed to solar radiation.</description><subject>Apples</subject><subject>Biophysical Phenomena</subject><subject>Boundary layers</subject><subject>Computer simulation</subject><subject>Controlled conditions</subject><subject>energy balance</subject><subject>heat</subject><subject>Heterogeneity</subject><subject>Hot Temperature</subject><subject>Irradiation</subject><subject>leaf boundary layer</subject><subject>leaf temperature</subject><subject>Leaves</subject><subject>Life Sciences</subject><subject>Malus - anatomy & histology</subject><subject>Malus - physiology</subject><subject>Mathematical models</subject><subject>Models, Theoretical</subject><subject>Plant Leaves - anatomy & histology</subject><subject>Plant Leaves - physiology</subject><subject>Plant Stomata - physiology</subject><subject>Predictive control</subject><subject>Radiation</subject><subject>Reproducibility of Results</subject><subject>Solar radiation</subject><subject>Spatial distribution</subject><subject>Spatial heterogeneity</subject><subject>Surface temperature</subject><subject>Temperature</subject><subject>Temperature effects</subject><subject>Temperature gradients</subject><subject>Thermography</subject><subject>Three dimensional models</subject><subject>Transpiration</subject><subject>Vegetal Biology</subject><issn>0140-7791</issn><issn>1365-3040</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kU9r3DAQxUVpabZpD_0CxdBLe3Aysv5ZvYUlbQoLzSG5FYRijbIKtuVKdsJ--yrZNIVA5jLw-PFmHo-QjxSOaJnjqcMjyqCRr8iKMilqBhxekxVQDrVSmh6QdznfABRB6bfkoGkVhZY2K_L7AocJk52XhNUWZ0zxGkcM866Kt5iqHq2v8pK87TB_q-YtVl0c5xSuljnEsYr-QevtEEZbDaFLcY5TvE522u7ekzfe9hk_PO5Dcvn99GJ9Vm9-_fi5PtnUHW9bWVPqrPCNapxDAFV-85oKqwUibb1T4LTzLVdSi05YJrjsODjGOtdIiWDZIfm6993a3kwpDDbtTLTBnJ1szL0GVAJXjN_Swn7Zs1OKfxbMsxlC7rDv7YhxyYbqBqjWUvOCfn6G3sQljSVJoVjbCiGA_z9eouec0D99QMHc12NKPeahnsJ-enRcrgZ0T-S_PgpwvAfuQo-7l53M-fp0b_kXff2YXw</recordid><startdate>201710</startdate><enddate>201710</enddate><creator>Saudreau, Marc</creator><creator>Ezanic, Amélie</creator><creator>Adam, Boris</creator><creator>Caillon, Robin</creator><creator>Walser, Pascal</creator><creator>Pincebourde, Sylvain</creator><general>Wiley Subscription Services, Inc</general><general>Wiley</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QP</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7X8</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0003-1130-5785</orcidid><orcidid>https://orcid.org/0000-0001-7964-5861</orcidid><orcidid>https://orcid.org/0000-0002-1696-5881</orcidid></search><sort><creationdate>201710</creationdate><title>Temperature heterogeneity over leaf surfaces: the contribution of the lamina microtopography</title><author>Saudreau, Marc ; Ezanic, Amélie ; Adam, Boris ; Caillon, Robin ; Walser, Pascal ; Pincebourde, Sylvain</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4886-11da5f272dde007871f915a95ee18fd70d9df847695c5a3546c40d33cd266e0a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Apples</topic><topic>Biophysical Phenomena</topic><topic>Boundary layers</topic><topic>Computer simulation</topic><topic>Controlled conditions</topic><topic>energy balance</topic><topic>heat</topic><topic>Heterogeneity</topic><topic>Hot Temperature</topic><topic>Irradiation</topic><topic>leaf boundary layer</topic><topic>leaf temperature</topic><topic>Leaves</topic><topic>Life Sciences</topic><topic>Malus - anatomy & histology</topic><topic>Malus - physiology</topic><topic>Mathematical models</topic><topic>Models, Theoretical</topic><topic>Plant Leaves - anatomy & histology</topic><topic>Plant Leaves - physiology</topic><topic>Plant Stomata - physiology</topic><topic>Predictive control</topic><topic>Radiation</topic><topic>Reproducibility of Results</topic><topic>Solar radiation</topic><topic>Spatial distribution</topic><topic>Spatial heterogeneity</topic><topic>Surface temperature</topic><topic>Temperature</topic><topic>Temperature effects</topic><topic>Temperature gradients</topic><topic>Thermography</topic><topic>Three dimensional models</topic><topic>Transpiration</topic><topic>Vegetal Biology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saudreau, Marc</creatorcontrib><creatorcontrib>Ezanic, Amélie</creatorcontrib><creatorcontrib>Adam, Boris</creatorcontrib><creatorcontrib>Caillon, Robin</creatorcontrib><creatorcontrib>Walser, Pascal</creatorcontrib><creatorcontrib>Pincebourde, Sylvain</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Plant, cell and environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saudreau, Marc</au><au>Ezanic, Amélie</au><au>Adam, Boris</au><au>Caillon, Robin</au><au>Walser, Pascal</au><au>Pincebourde, Sylvain</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temperature heterogeneity over leaf surfaces: the contribution of the lamina microtopography</atitle><jtitle>Plant, cell and environment</jtitle><addtitle>Plant Cell Environ</addtitle><date>2017-10</date><risdate>2017</risdate><volume>40</volume><issue>10</issue><spage>2174</spage><epage>2188</epage><pages>2174-2188</pages><issn>0140-7791</issn><eissn>1365-3040</eissn><abstract>Temperature is spatially heterogeneous over leaf surfaces, yet the underlying mechanisms are not fully resolved. We hypothesized that the 3D leaf microtopography determines locally the amount of incoming irradiation flux at leaf surface, thereby driving the temperature gradient over the leaf surface. This hypothesis was tested by developing a model of leaf temperature heterogeneity that includes the development of the leaf boundary layer, the microtopography of the leaf surface and the physiological response of the leaf. Temperature distributions under various irradiation loads (1) over apple leaves based on their 3D microtopography, (2) over simulated flat (2D) apple leaves and (3) over 3D leaves with a transpiration rate distributed as in 2D leaves were simulated. Accuracy of the predictions was quantified by comparing model outputs and thermographic measurements of leaf surface temperature under controlled conditions. Only the model with 3D leaves predicted accurately the spatial heterogeneity of surface temperature over single leaves, whereas the mean temperature was well predicted by both 2D and 3D leaves. We suggest that in these conditions, the 3D leaf microtopography is the primary driver of leaf surface heterogeneity in temperature when the leaf is exposed to a light/heat source.
Temperature is spatially heterogeneous over leaf surfaces, yet the underlying mechanisms are not fully resolved. We developed a biophysical model to simulate the surface temperature heterogeneity over single leaves. We show that the microtopography of the leaf lamina generates a large temperature gradient (of up to 20 °C) especially when exposed to solar radiation.</abstract><cop>United States</cop><pub>Wiley Subscription Services, Inc</pub><pmid>28710812</pmid><doi>10.1111/pce.13026</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0003-1130-5785</orcidid><orcidid>https://orcid.org/0000-0001-7964-5861</orcidid><orcidid>https://orcid.org/0000-0002-1696-5881</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Apples Biophysical Phenomena Boundary layers Computer simulation Controlled conditions energy balance heat Heterogeneity Hot Temperature Irradiation leaf boundary layer leaf temperature Leaves Life Sciences Malus - anatomy & histology Malus - physiology Mathematical models Models, Theoretical Plant Leaves - anatomy & histology Plant Leaves - physiology Plant Stomata - physiology Predictive control Radiation Reproducibility of Results Solar radiation Spatial distribution Spatial heterogeneity Surface temperature Temperature Temperature effects Temperature gradients Thermography Three dimensional models Transpiration Vegetal Biology |
| title | Temperature heterogeneity over leaf surfaces: the contribution of the lamina microtopography |
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