The nitrogen economic spectrum of legume stoichiometry and fixation strategy
• Leaf nitrogen concentration often is higher in leguminous plants, which associate with dinitrogen-fixing bacteria, compared with nonlegume plants. However, the range of nitrogen concentrations in legumes is wide, likely related to the range of nitrogen fixation strategies. We evaluated how carbon...
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| Veröffentlicht in: | The New phytologist 2020-07, Vol.227 (2), p.365-375 |
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| creator | Dovrat, Guy Bakhshian, Hila Masci, Tania Sheffer, Efrat |
| description | • Leaf nitrogen concentration often is higher in leguminous plants, which associate with dinitrogen-fixing bacteria, compared with nonlegume plants. However, the range of nitrogen concentrations in legumes is wide, likely related to the range of nitrogen fixation strategies. We evaluated how carbon and nitrogen allocation to roots, stems and leaves is influenced by the type of strategy of nitrogen fixation regulation.
• We grew herbaceous annual legumes (Medicago truncatula, Hymenocarpos circinnatus and Vicia palaestina) under two nitrogen availability treatments (none/sufficient), with and without bacterial inoculation.
• We found facultative downregulation of the rate of nitrogen fixation when nitrogen was available in H. circinnatus, and an obligate similar fixation rate in both nitrogen treatments in M. truncatula and V. palaestina. Uninoculated plants invested more biomass in roots and contained lower nitrogen concentrations. However, nitrogen concentration in the entire plant and in the leaves was lower and more plastic in the species with a facultative fixation strategy, whereas species with an obligate fixation strategy also maintained high nitrogen concentrations.
• Our results suggest a suite of functional traits associated with the strategies of allocation and symbiotic nitrogen fixation. This suite of traits probably shapes successional and functional niches of different leguminous species in specious plant communities. |
| doi_str_mv | 10.1111/nph.16543 |
| format | Article |
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• We grew herbaceous annual legumes (Medicago truncatula, Hymenocarpos circinnatus and Vicia palaestina) under two nitrogen availability treatments (none/sufficient), with and without bacterial inoculation.
• We found facultative downregulation of the rate of nitrogen fixation when nitrogen was available in H. circinnatus, and an obligate similar fixation rate in both nitrogen treatments in M. truncatula and V. palaestina. Uninoculated plants invested more biomass in roots and contained lower nitrogen concentrations. However, nitrogen concentration in the entire plant and in the leaves was lower and more plastic in the species with a facultative fixation strategy, whereas species with an obligate fixation strategy also maintained high nitrogen concentrations.
• Our results suggest a suite of functional traits associated with the strategies of allocation and symbiotic nitrogen fixation. This suite of traits probably shapes successional and functional niches of different leguminous species in specious plant communities.</description><identifier>ISSN: 0028-646X</identifier><identifier>EISSN: 1469-8137</identifier><identifier>DOI: 10.1111/nph.16543</identifier><identifier>PMID: 32175592</identifier><language>eng</language><publisher>England: Wiley</publisher><subject>Alfalfa ; allocation ; Economics ; Fabaceae ; facultative strategy ; herbaceous plant community ; Inoculation ; Leaves ; Legumes ; Leguminous plants ; Medicago truncatula ; Niches ; Nitrogen ; Nitrogen Fixation ; Nitrogenation ; obligate strategy ; Plant communities ; Plant Roots ; Plants ; root nodules ; Root Nodules, Plant ; Roots ; Species ; Stoichiometry ; Strategy ; Symbionts ; Symbiosis ; Vicia palaestina</subject><ispartof>The New phytologist, 2020-07, Vol.227 (2), p.365-375</ispartof><rights>2020 The Authors © 2020 New Phytologist Trust</rights><rights>2020 The Authors. New Phytologist © 2020 New Phytologist Trust</rights><rights>2020 The Authors. New Phytologist © 2020 New Phytologist Trust.</rights><rights>Copyright © 2020 New Phytologist Trust</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4103-4f31942568ac0c21459f2bc8c3f31b906770d1f38957a6e812df2d8ad0e225323</citedby><cites>FETCH-LOGICAL-c4103-4f31942568ac0c21459f2bc8c3f31b906770d1f38957a6e812df2d8ad0e225323</cites><orcidid>0000-0001-8048-4209 ; 0000-0002-2715-7468</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/26928341$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/26928341$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,1417,1433,27924,27925,45574,45575,46409,46833,58017,58250</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32175592$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Dovrat, Guy</creatorcontrib><creatorcontrib>Bakhshian, Hila</creatorcontrib><creatorcontrib>Masci, Tania</creatorcontrib><creatorcontrib>Sheffer, Efrat</creatorcontrib><title>The nitrogen economic spectrum of legume stoichiometry and fixation strategy</title><title>The New phytologist</title><addtitle>New Phytol</addtitle><description>• Leaf nitrogen concentration often is higher in leguminous plants, which associate with dinitrogen-fixing bacteria, compared with nonlegume plants. However, the range of nitrogen concentrations in legumes is wide, likely related to the range of nitrogen fixation strategies. We evaluated how carbon and nitrogen allocation to roots, stems and leaves is influenced by the type of strategy of nitrogen fixation regulation.
• We grew herbaceous annual legumes (Medicago truncatula, Hymenocarpos circinnatus and Vicia palaestina) under two nitrogen availability treatments (none/sufficient), with and without bacterial inoculation.
• We found facultative downregulation of the rate of nitrogen fixation when nitrogen was available in H. circinnatus, and an obligate similar fixation rate in both nitrogen treatments in M. truncatula and V. palaestina. Uninoculated plants invested more biomass in roots and contained lower nitrogen concentrations. However, nitrogen concentration in the entire plant and in the leaves was lower and more plastic in the species with a facultative fixation strategy, whereas species with an obligate fixation strategy also maintained high nitrogen concentrations.
• Our results suggest a suite of functional traits associated with the strategies of allocation and symbiotic nitrogen fixation. This suite of traits probably shapes successional and functional niches of different leguminous species in specious plant communities.</description><subject>Alfalfa</subject><subject>allocation</subject><subject>Economics</subject><subject>Fabaceae</subject><subject>facultative strategy</subject><subject>herbaceous plant community</subject><subject>Inoculation</subject><subject>Leaves</subject><subject>Legumes</subject><subject>Leguminous plants</subject><subject>Medicago truncatula</subject><subject>Niches</subject><subject>Nitrogen</subject><subject>Nitrogen Fixation</subject><subject>Nitrogenation</subject><subject>obligate strategy</subject><subject>Plant communities</subject><subject>Plant Roots</subject><subject>Plants</subject><subject>root nodules</subject><subject>Root Nodules, Plant</subject><subject>Roots</subject><subject>Species</subject><subject>Stoichiometry</subject><subject>Strategy</subject><subject>Symbionts</subject><subject>Symbiosis</subject><subject>Vicia palaestina</subject><issn>0028-646X</issn><issn>1469-8137</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kD1vFDEQhi0EIkeg4AeAVqKBYhN7_F2iCAjSCSiCRGf5vLN3Pu2uD3tXcP8eh0tSIDHNFPO8r0YPIS8ZvWB1LqfD7oIpKfgjsmJC2dYwrh-TFaVgWiXUjzPyrJQ9pdRKBU_JGQempbSwIuubHTZTnHPa4tRgSFMaY2jKAcOcl7FJfTPgdhmxKXOKYRfTiHM-Nn7qmj7-9nNMUz1lP-P2-Jw86f1Q8MXdPiffP364ubpu118_fb56v26DYJS3oufMCpDK-EADMCFtD5tgAq-HjaVKa9qxnhsrtVdoGHQ9dMZ3FAEkB35O3p56Dzn9XLDMbowl4DD4CdNSHHCtlZFa3KJv_kH3aclT_c6BYKA1F5ZW6t2JCjmVkrF3hxxHn4-OUXer2FXF7q_iyr6-a1w2I3YP5L3TClyegF9xwOP_m9yXb9f3la9OiX2VnB8SoCwYLhj_A9v2jfQ</recordid><startdate>20200701</startdate><enddate>20200701</enddate><creator>Dovrat, Guy</creator><creator>Bakhshian, Hila</creator><creator>Masci, Tania</creator><creator>Sheffer, Efrat</creator><general>Wiley</general><general>Wiley Subscription Services, Inc</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>7QO</scope><scope>7SN</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-8048-4209</orcidid><orcidid>https://orcid.org/0000-0002-2715-7468</orcidid></search><sort><creationdate>20200701</creationdate><title>The nitrogen economic spectrum of legume stoichiometry and fixation strategy</title><author>Dovrat, Guy ; Bakhshian, Hila ; Masci, Tania ; Sheffer, Efrat</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4103-4f31942568ac0c21459f2bc8c3f31b906770d1f38957a6e812df2d8ad0e225323</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Alfalfa</topic><topic>allocation</topic><topic>Economics</topic><topic>Fabaceae</topic><topic>facultative strategy</topic><topic>herbaceous plant community</topic><topic>Inoculation</topic><topic>Leaves</topic><topic>Legumes</topic><topic>Leguminous plants</topic><topic>Medicago truncatula</topic><topic>Niches</topic><topic>Nitrogen</topic><topic>Nitrogen Fixation</topic><topic>Nitrogenation</topic><topic>obligate strategy</topic><topic>Plant communities</topic><topic>Plant Roots</topic><topic>Plants</topic><topic>root nodules</topic><topic>Root Nodules, Plant</topic><topic>Roots</topic><topic>Species</topic><topic>Stoichiometry</topic><topic>Strategy</topic><topic>Symbionts</topic><topic>Symbiosis</topic><topic>Vicia palaestina</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dovrat, Guy</creatorcontrib><creatorcontrib>Bakhshian, Hila</creatorcontrib><creatorcontrib>Masci, Tania</creatorcontrib><creatorcontrib>Sheffer, Efrat</creatorcontrib><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>Ecology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>The New phytologist</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dovrat, Guy</au><au>Bakhshian, Hila</au><au>Masci, Tania</au><au>Sheffer, Efrat</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The nitrogen economic spectrum of legume stoichiometry and fixation strategy</atitle><jtitle>The New phytologist</jtitle><addtitle>New Phytol</addtitle><date>2020-07-01</date><risdate>2020</risdate><volume>227</volume><issue>2</issue><spage>365</spage><epage>375</epage><pages>365-375</pages><issn>0028-646X</issn><eissn>1469-8137</eissn><abstract>• Leaf nitrogen concentration often is higher in leguminous plants, which associate with dinitrogen-fixing bacteria, compared with nonlegume plants. However, the range of nitrogen concentrations in legumes is wide, likely related to the range of nitrogen fixation strategies. We evaluated how carbon and nitrogen allocation to roots, stems and leaves is influenced by the type of strategy of nitrogen fixation regulation.
• We grew herbaceous annual legumes (Medicago truncatula, Hymenocarpos circinnatus and Vicia palaestina) under two nitrogen availability treatments (none/sufficient), with and without bacterial inoculation.
• We found facultative downregulation of the rate of nitrogen fixation when nitrogen was available in H. circinnatus, and an obligate similar fixation rate in both nitrogen treatments in M. truncatula and V. palaestina. Uninoculated plants invested more biomass in roots and contained lower nitrogen concentrations. However, nitrogen concentration in the entire plant and in the leaves was lower and more plastic in the species with a facultative fixation strategy, whereas species with an obligate fixation strategy also maintained high nitrogen concentrations.
• Our results suggest a suite of functional traits associated with the strategies of allocation and symbiotic nitrogen fixation. This suite of traits probably shapes successional and functional niches of different leguminous species in specious plant communities.</abstract><cop>England</cop><pub>Wiley</pub><pmid>32175592</pmid><doi>10.1111/nph.16543</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0001-8048-4209</orcidid><orcidid>https://orcid.org/0000-0002-2715-7468</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Alfalfa allocation Economics Fabaceae facultative strategy herbaceous plant community Inoculation Leaves Legumes Leguminous plants Medicago truncatula Niches Nitrogen Nitrogen Fixation Nitrogenation obligate strategy Plant communities Plant Roots Plants root nodules Root Nodules, Plant Roots Species Stoichiometry Strategy Symbionts Symbiosis Vicia palaestina |
| title | The nitrogen economic spectrum of legume stoichiometry and fixation strategy |
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