Functional constraints of CAM leaf anatomy: tight cell packing is associated with increased CAM function across a gradient of CAM expression
Increased cell size, increased leaf succulence, reduced intercellular air space (IAS), and reduced surface of mesophyll exposed to IAS (Lmes/area) are traits associated with the Crassulacean acid metabolism (CAM) photosynthetic pathway. An examination was carried out to determine whether these anato...
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| Veröffentlicht in: | Journal of experimental botany 2008-05, Vol.59 (7), p.1841-1850 |
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| container_title | Journal of experimental botany |
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| creator | Nelson, Elizabeth A Sage, Rowan F |
| description | Increased cell size, increased leaf succulence, reduced intercellular air space (IAS), and reduced surface of mesophyll exposed to IAS (Lmes/area) are traits associated with the Crassulacean acid metabolism (CAM) photosynthetic pathway. An examination was carried out to determine whether these anatomical and structural traits are related to the degree of CAM function in eight CAM species, as measured by CO2 assimilation during the CAM and C3 phases. Increased cell size and leaf succulence were not closely related to the degree of CAM function, indicating that succulence beyond a certain threshold does not enhance CAM function. Reduced IAS and Lmes/area were positively related to CAM function, and negatively related to C3 function. These results indicate that reduced IAS and Lmes/area are beneficial for CAM function through the reduction of CO2 efflux and the improvement of carbon economy. However, reduced IAS and Lmes/area limit C3 photosynthesis, potentially mediating a bimodal distribution of weak and strong CAM species with high and low IAS and Lmes/area values, respectively. |
| doi_str_mv | 10.1093/jxb/erm346 |
| format | Article |
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An examination was carried out to determine whether these anatomical and structural traits are related to the degree of CAM function in eight CAM species, as measured by CO2 assimilation during the CAM and C3 phases. Increased cell size and leaf succulence were not closely related to the degree of CAM function, indicating that succulence beyond a certain threshold does not enhance CAM function. Reduced IAS and Lmes/area were positively related to CAM function, and negatively related to C3 function. These results indicate that reduced IAS and Lmes/area are beneficial for CAM function through the reduction of CO2 efflux and the improvement of carbon economy. However, reduced IAS and Lmes/area limit C3 photosynthesis, potentially mediating a bimodal distribution of weak and strong CAM species with high and low IAS and Lmes/area values, respectively.</description><identifier>ISSN: 0022-0957</identifier><identifier>EISSN: 1460-2431</identifier><identifier>DOI: 10.1093/jxb/erm346</identifier><identifier>PMID: 18256047</identifier><identifier>CODEN: JEBOA6</identifier><language>eng</language><publisher>England: Oxford University Press</publisher><subject>Anatomy ; Biological taxonomies ; C3 photosynthesis ; Carbon Dioxide - metabolism ; Crassulacean acid metabolism ; Ecosystem ; Evolution ; Gene Expression Regulation, Plant - physiology ; leaf anatomy ; Magnoliopsida - genetics ; Magnoliopsida - metabolism ; Mesophyll cells ; Photosynthesis ; Photosynthesis - physiology ; Plant cells ; Plant Leaves - cytology ; Plant physiology ; Plants ; SPECIAL ISSUE RESEARCH PAPER</subject><ispartof>Journal of experimental botany, 2008-05, Vol.59 (7), p.1841-1850</ispartof><rights>Society for Experimental Biology 2008</rights><rights>The Author [2008]. Published by Oxford University Press [on behalf of the Society for Experimental Biology]. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org 2008</rights><rights>The Author [2008]. Published by Oxford University Press [on behalf of the Society for Experimental Biology]. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c426t-49d393f18d934ed4474e6f88fd942e1826d374770f6f7093701da622301fdf543</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/24037427$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/24037427$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,1578,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18256047$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Nelson, Elizabeth A</creatorcontrib><creatorcontrib>Sage, Rowan F</creatorcontrib><title>Functional constraints of CAM leaf anatomy: tight cell packing is associated with increased CAM function across a gradient of CAM expression</title><title>Journal of experimental botany</title><addtitle>J Exp Bot</addtitle><description>Increased cell size, increased leaf succulence, reduced intercellular air space (IAS), and reduced surface of mesophyll exposed to IAS (Lmes/area) are traits associated with the Crassulacean acid metabolism (CAM) photosynthetic pathway. An examination was carried out to determine whether these anatomical and structural traits are related to the degree of CAM function in eight CAM species, as measured by CO2 assimilation during the CAM and C3 phases. Increased cell size and leaf succulence were not closely related to the degree of CAM function, indicating that succulence beyond a certain threshold does not enhance CAM function. Reduced IAS and Lmes/area were positively related to CAM function, and negatively related to C3 function. These results indicate that reduced IAS and Lmes/area are beneficial for CAM function through the reduction of CO2 efflux and the improvement of carbon economy. However, reduced IAS and Lmes/area limit C3 photosynthesis, potentially mediating a bimodal distribution of weak and strong CAM species with high and low IAS and Lmes/area values, respectively.</description><subject>Anatomy</subject><subject>Biological taxonomies</subject><subject>C3 photosynthesis</subject><subject>Carbon Dioxide - metabolism</subject><subject>Crassulacean acid metabolism</subject><subject>Ecosystem</subject><subject>Evolution</subject><subject>Gene Expression Regulation, Plant - physiology</subject><subject>leaf anatomy</subject><subject>Magnoliopsida - genetics</subject><subject>Magnoliopsida - metabolism</subject><subject>Mesophyll cells</subject><subject>Photosynthesis</subject><subject>Photosynthesis - physiology</subject><subject>Plant cells</subject><subject>Plant Leaves - cytology</subject><subject>Plant physiology</subject><subject>Plants</subject><subject>SPECIAL ISSUE RESEARCH PAPER</subject><issn>0022-0957</issn><issn>1460-2431</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kcFu1DAURS0EokNhwx6wkMoCKfTFduyEXTXqUKRpWUClio3lJvbU0yRObUdM_4GPxiFDkViwsiwfnef7LkIvc_iQQ0WPt7vrY-07yvgjtMgZh4wwmj9GCwBCMqgKcYCehbAFgAKK4ik6yEtScGBigX6uxr6O1vWqxbXrQ_TK9jFgZ_Dy5By3WhmsehVdd_8RR7u5ibjWbYsHVd_afoNtwCoEV1sVdYN_2HiDbV97rUK6Tgaz92NVexcSjTdeNVb38c8MvRu8DiExz9ETo9qgX-zPQ3S5Ov22PMvWXz59Xp6ss5oRHjNWNbSiJi-bijLdMCaY5qYsTVMxolM23lDBhADDjUgLEpA3ihNCITeNKRg9RO9m7-Dd3ahDlJ0NUyzVazcGKUAUhSAT-PYfcOtGn3YVJKEF5GlMmaD3M_Q7oNdGDt52yt_LHORUkEwFybmgBL_eG8frTjd_0X0jCTiaATcO_xe9mrltiM4_kIRB-hSZPNn8bkPUu4d35W8lF1QU8uzquzznFxe8Wq3lVeLfzLxRTqqNt0FefiUpIkAFQCtOfwEyIbrb</recordid><startdate>20080501</startdate><enddate>20080501</enddate><creator>Nelson, Elizabeth A</creator><creator>Sage, Rowan F</creator><general>Oxford University Press</general><general>Oxford Publishing Limited (England)</general><scope>FBQ</scope><scope>BSCLL</scope><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>7QO</scope><scope>7QP</scope><scope>8FD</scope><scope>FR3</scope><scope>K9.</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>20080501</creationdate><title>Functional constraints of CAM leaf anatomy: tight cell packing is associated with increased CAM function across a gradient of CAM expression</title><author>Nelson, Elizabeth A ; Sage, Rowan F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c426t-49d393f18d934ed4474e6f88fd942e1826d374770f6f7093701da622301fdf543</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Anatomy</topic><topic>Biological taxonomies</topic><topic>C3 photosynthesis</topic><topic>Carbon Dioxide - metabolism</topic><topic>Crassulacean acid metabolism</topic><topic>Ecosystem</topic><topic>Evolution</topic><topic>Gene Expression Regulation, Plant - physiology</topic><topic>leaf anatomy</topic><topic>Magnoliopsida - genetics</topic><topic>Magnoliopsida - metabolism</topic><topic>Mesophyll cells</topic><topic>Photosynthesis</topic><topic>Photosynthesis - physiology</topic><topic>Plant cells</topic><topic>Plant Leaves - cytology</topic><topic>Plant physiology</topic><topic>Plants</topic><topic>SPECIAL ISSUE RESEARCH PAPER</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nelson, Elizabeth A</creatorcontrib><creatorcontrib>Sage, Rowan F</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of experimental botany</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nelson, Elizabeth A</au><au>Sage, Rowan F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Functional constraints of CAM leaf anatomy: tight cell packing is associated with increased CAM function across a gradient of CAM expression</atitle><jtitle>Journal of experimental botany</jtitle><addtitle>J Exp Bot</addtitle><date>2008-05-01</date><risdate>2008</risdate><volume>59</volume><issue>7</issue><spage>1841</spage><epage>1850</epage><pages>1841-1850</pages><issn>0022-0957</issn><eissn>1460-2431</eissn><coden>JEBOA6</coden><abstract>Increased cell size, increased leaf succulence, reduced intercellular air space (IAS), and reduced surface of mesophyll exposed to IAS (Lmes/area) are traits associated with the Crassulacean acid metabolism (CAM) photosynthetic pathway. An examination was carried out to determine whether these anatomical and structural traits are related to the degree of CAM function in eight CAM species, as measured by CO2 assimilation during the CAM and C3 phases. Increased cell size and leaf succulence were not closely related to the degree of CAM function, indicating that succulence beyond a certain threshold does not enhance CAM function. Reduced IAS and Lmes/area were positively related to CAM function, and negatively related to C3 function. These results indicate that reduced IAS and Lmes/area are beneficial for CAM function through the reduction of CO2 efflux and the improvement of carbon economy. However, reduced IAS and Lmes/area limit C3 photosynthesis, potentially mediating a bimodal distribution of weak and strong CAM species with high and low IAS and Lmes/area values, respectively.</abstract><cop>England</cop><pub>Oxford University Press</pub><pmid>18256047</pmid><doi>10.1093/jxb/erm346</doi><tpages>10</tpages></addata></record> |
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| subjects | Anatomy Biological taxonomies C3 photosynthesis Carbon Dioxide - metabolism Crassulacean acid metabolism Ecosystem Evolution Gene Expression Regulation, Plant - physiology leaf anatomy Magnoliopsida - genetics Magnoliopsida - metabolism Mesophyll cells Photosynthesis Photosynthesis - physiology Plant cells Plant Leaves - cytology Plant physiology Plants SPECIAL ISSUE RESEARCH PAPER |
| title | Functional constraints of CAM leaf anatomy: tight cell packing is associated with increased CAM function across a gradient of CAM expression |
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