Reproductive growth during drought in Artemisia tridentata Nutt
Artemisia tridentata Nutt, is a drought-tolerant shrub that expands inflorescences during summer and autumn, even though xylem pressure potentials may be less than -5.0 MPa. Supplemental watering increased total inflorescence biomass and the biomass of floral heads over 450 and 550%, respectively. I...
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| Veröffentlicht in: | Functional ecology 1991, Vol.5 (5), p.676-683 |
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| container_title | Functional ecology |
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| creator | Evans, R.D Black, R.A Link, S.O |
| description | Artemisia tridentata Nutt, is a drought-tolerant shrub that expands inflorescences during summer and autumn, even though xylem pressure potentials may be less than -5.0 MPa. Supplemental watering increased total inflorescence biomass and the biomass of floral heads over 450 and 550%, respectively. Inflorescences displayed positive net photosynthesis until xylem pressure potentials decreased below -5.0 MPa. Growth of inflorescences was not dependent on carbon imported from vegetative leaves; removal of all leaves on vegetative branches did not change inflorescence biomass, and 14CO2 fixed by adjacent vegetative branches was not transferred into inflorescences. Expanding inflorescences during summer may enhance competitive ability because biomass can be allocated solely towards vegetative growth during spring, increasing the capacity of Artemisia tridentata to acquire resources when they are most abundant. Conversely, inflorescences that are photosynthetically self-sufficient can better respond to favourable soil moisture or intermittent precipitation during summer, because photosynthesis can be increased without investing resources into further vegetative growth. |
| doi_str_mv | 10.2307/2389488 |
| format | Article |
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Supplemental watering increased total inflorescence biomass and the biomass of floral heads over 450 and 550%, respectively. Inflorescences displayed positive net photosynthesis until xylem pressure potentials decreased below -5.0 MPa. Growth of inflorescences was not dependent on carbon imported from vegetative leaves; removal of all leaves on vegetative branches did not change inflorescence biomass, and 14CO2 fixed by adjacent vegetative branches was not transferred into inflorescences. Expanding inflorescences during summer may enhance competitive ability because biomass can be allocated solely towards vegetative growth during spring, increasing the capacity of Artemisia tridentata to acquire resources when they are most abundant. Conversely, inflorescences that are photosynthetically self-sufficient can better respond to favourable soil moisture or intermittent precipitation during summer, because photosynthesis can be increased without investing resources into further vegetative growth.</description><identifier>ISSN: 0269-8463</identifier><identifier>EISSN: 1365-2435</identifier><identifier>DOI: 10.2307/2389488</identifier><language>eng</language><publisher>Oxford: British Ecological Association</publisher><subject>Animal, plant and microbial ecology ; Artemisia tridentata ; Biological and medical sciences ; Biomass ; biomass production ; drought ; Fundamental and applied biological sciences. Psychology ; Inflorescences ; Leaves ; photosynthates ; Photosynthesis ; Plant ecology ; Plants ; Shrubs ; Stems ; translocation (plant physiology) ; Water pressure ; water stress ; Xylem ; xylem water potential</subject><ispartof>Functional ecology, 1991, Vol.5 (5), p.676-683</ispartof><rights>Copyright 1991 British Ecological Society</rights><rights>1992 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c336t-f10640e50e2feeebfa2b4d6bac18bef29b6699d0ccf00ff1d87951cfd84e12d53</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/2389488$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/2389488$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,4024,27923,27924,27925,58017,58250</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=5439183$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Evans, R.D</creatorcontrib><creatorcontrib>Black, R.A</creatorcontrib><creatorcontrib>Link, S.O</creatorcontrib><title>Reproductive growth during drought in Artemisia tridentata Nutt</title><title>Functional ecology</title><description>Artemisia tridentata Nutt, is a drought-tolerant shrub that expands inflorescences during summer and autumn, even though xylem pressure potentials may be less than -5.0 MPa. Supplemental watering increased total inflorescence biomass and the biomass of floral heads over 450 and 550%, respectively. Inflorescences displayed positive net photosynthesis until xylem pressure potentials decreased below -5.0 MPa. Growth of inflorescences was not dependent on carbon imported from vegetative leaves; removal of all leaves on vegetative branches did not change inflorescence biomass, and 14CO2 fixed by adjacent vegetative branches was not transferred into inflorescences. Expanding inflorescences during summer may enhance competitive ability because biomass can be allocated solely towards vegetative growth during spring, increasing the capacity of Artemisia tridentata to acquire resources when they are most abundant. Conversely, inflorescences that are photosynthetically self-sufficient can better respond to favourable soil moisture or intermittent precipitation during summer, because photosynthesis can be increased without investing resources into further vegetative growth.</description><subject>Animal, plant and microbial ecology</subject><subject>Artemisia tridentata</subject><subject>Biological and medical sciences</subject><subject>Biomass</subject><subject>biomass production</subject><subject>drought</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Inflorescences</subject><subject>Leaves</subject><subject>photosynthates</subject><subject>Photosynthesis</subject><subject>Plant ecology</subject><subject>Plants</subject><subject>Shrubs</subject><subject>Stems</subject><subject>translocation (plant physiology)</subject><subject>Water pressure</subject><subject>water stress</subject><subject>Xylem</subject><subject>xylem water potential</subject><issn>0269-8463</issn><issn>1365-2435</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><recordid>eNp90M1LwzAYx_EgCs4p_gn2IHqq5q1pcpIxfIOhoO5c0uRJl7G1M0kV_3srG3rz9Fw-fPnxIHRK8BVluLymTCou5R4aESaKnHJW7KMRpkLlkgt2iI5iXGKMVUHpCN28wCZ0tjfJf0DWhO4zLTLbB982mQ1d3yxS5ttsEhKsffQ6S8FbaJNOOnvqUzpGB06vIpzs7hjN727fpg_57Pn-cTqZ5YYxkXJHsOAYCgzUAUDtNK25FbU2RNbgqKqFUMpiYxzGzhErS1UQ46zkQKgt2BhdbLvD2vceYqqGOQZWK91C18eKCII5YWSAl1toQhdjAFdtgl_r8FURXP08qNo9aJDnu6SORq9c0K3x8ZcXnCki2R9bxtSFf2pnW-Z0V-kmDKX5K8WEYVIyVZacfQN9nnnV</recordid><startdate>1991</startdate><enddate>1991</enddate><creator>Evans, R.D</creator><creator>Black, R.A</creator><creator>Link, S.O</creator><general>British Ecological Association</general><general>Blackwell Science</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>C1K</scope></search><sort><creationdate>1991</creationdate><title>Reproductive growth during drought in Artemisia tridentata Nutt</title><author>Evans, R.D ; Black, R.A ; Link, S.O</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c336t-f10640e50e2feeebfa2b4d6bac18bef29b6699d0ccf00ff1d87951cfd84e12d53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>Animal, plant and microbial ecology</topic><topic>Artemisia tridentata</topic><topic>Biological and medical sciences</topic><topic>Biomass</topic><topic>biomass production</topic><topic>drought</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Inflorescences</topic><topic>Leaves</topic><topic>photosynthates</topic><topic>Photosynthesis</topic><topic>Plant ecology</topic><topic>Plants</topic><topic>Shrubs</topic><topic>Stems</topic><topic>translocation (plant physiology)</topic><topic>Water pressure</topic><topic>water stress</topic><topic>Xylem</topic><topic>xylem water potential</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Evans, R.D</creatorcontrib><creatorcontrib>Black, R.A</creatorcontrib><creatorcontrib>Link, S.O</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>Functional ecology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Evans, R.D</au><au>Black, R.A</au><au>Link, S.O</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reproductive growth during drought in Artemisia tridentata Nutt</atitle><jtitle>Functional ecology</jtitle><date>1991</date><risdate>1991</risdate><volume>5</volume><issue>5</issue><spage>676</spage><epage>683</epage><pages>676-683</pages><issn>0269-8463</issn><eissn>1365-2435</eissn><abstract>Artemisia tridentata Nutt, is a drought-tolerant shrub that expands inflorescences during summer and autumn, even though xylem pressure potentials may be less than -5.0 MPa. Supplemental watering increased total inflorescence biomass and the biomass of floral heads over 450 and 550%, respectively. Inflorescences displayed positive net photosynthesis until xylem pressure potentials decreased below -5.0 MPa. Growth of inflorescences was not dependent on carbon imported from vegetative leaves; removal of all leaves on vegetative branches did not change inflorescence biomass, and 14CO2 fixed by adjacent vegetative branches was not transferred into inflorescences. Expanding inflorescences during summer may enhance competitive ability because biomass can be allocated solely towards vegetative growth during spring, increasing the capacity of Artemisia tridentata to acquire resources when they are most abundant. Conversely, inflorescences that are photosynthetically self-sufficient can better respond to favourable soil moisture or intermittent precipitation during summer, because photosynthesis can be increased without investing resources into further vegetative growth.</abstract><cop>Oxford</cop><pub>British Ecological Association</pub><doi>10.2307/2389488</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0269-8463 |
| ispartof | Functional ecology, 1991, Vol.5 (5), p.676-683 |
| issn | 0269-8463 1365-2435 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_16104131 |
| source | JSTOR Archive Collection A-Z Listing |
| subjects | Animal, plant and microbial ecology Artemisia tridentata Biological and medical sciences Biomass biomass production drought Fundamental and applied biological sciences. Psychology Inflorescences Leaves photosynthates Photosynthesis Plant ecology Plants Shrubs Stems translocation (plant physiology) Water pressure water stress Xylem xylem water potential |
| title | Reproductive growth during drought in Artemisia tridentata Nutt |
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