UV-B affects within-seed biomass allocation and chemical provisioning
• Here we investigated the accuracy of measurements at the whole seed level in estimating seed and seedling quality. Specifically, we asked: 'Do measurements at the whole seed level mask important differences in testa or embryo quality?' and 'Are chemicals provisioned to seeds present...
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| Veröffentlicht in: | The New phytologist 2004-04, Vol.162 (1), p.167-171 |
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| container_title | The New phytologist |
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| creator | Griffen, Lauren R. Wilczek, Amity M. Bazzaz, Fakhri A. |
| description | • Here we investigated the accuracy of measurements at the whole seed level in estimating seed and seedling quality. Specifically, we asked: 'Do measurements at the whole seed level mask important differences in testa or embryo quality?' and 'Are chemicals provisioned to seeds present in seedlings post-germination?' • We measured the allocation of biomass and distribution of UV-absorbing compounds to testas and embryos of Brassica rapa seeds derived from plants grown in the presence and absence of UV-B. The concentration of UV-absorbing compounds in cotyledons was also quantified. • Differences in seed quality were only detected when testas were analyzed separately from embryos. UV-B decreased testa mass by 18% and increased the concentration of UV-absorbing compounds in the testa by 158%. The increased chemical provisioning to testas was not evident post-germination, as the concentration of UV-absorbing compounds in cotyledons was independent of parental environment. • Our results suggest that measurements at the whole seed level conceal significant differences in testa quality, and chemicals provisioned to testas do not affect progeny chemistry during establishment. |
| doi_str_mv | 10.1111/j.1469-8137.2004.01013.x |
| format | Article |
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The increased chemical provisioning to testas was not evident post-germination, as the concentration of UV-absorbing compounds in cotyledons was independent of parental environment. • Our results suggest that measurements at the whole seed level conceal significant differences in testa quality, and chemicals provisioned to testas do not affect progeny chemistry during establishment.</description><identifier>ISSN: 0028-646X</identifier><identifier>EISSN: 1469-8137</identifier><identifier>DOI: 10.1111/j.1469-8137.2004.01013.x</identifier><identifier>CODEN: NEPHAV</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Science</publisher><subject>Agronomy. Soil science and plant productions ; allocation ; Average linear density ; Biological and medical sciences ; Biomass ; Brassica rapa ; Chemicals ; Cotyledons ; Economic plant physiology ; embryo ; embryo (plant) ; Embryos ; Fructification and ripening ; Fructification, ripening. 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Psychology ; Growth and development ; parental (maternal) effects ; Plant physiology and development ; Plants ; provisioning ; Seed quality ; Seedlings ; Seeds ; Testa ; testa (seed coat) ; ultraviolet radiation ; Vegetative and sexual reproduction, floral biology, fructification</subject><ispartof>The New phytologist, 2004-04, Vol.162 (1), p.167-171</ispartof><rights>Copyright 2004 New Phytologist</rights><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4173-b1dd0c1a937170a9e7620e0b27f7e25cbe48dae2a3d3c5086d3c462698fea02e3</citedby><cites>FETCH-LOGICAL-c4173-b1dd0c1a937170a9e7620e0b27f7e25cbe48dae2a3d3c5086d3c462698fea02e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/1514486$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/1514486$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,1411,1427,27901,27902,45550,45551,46384,46808,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15576272$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Griffen, Lauren R.</creatorcontrib><creatorcontrib>Wilczek, Amity M.</creatorcontrib><creatorcontrib>Bazzaz, Fakhri A.</creatorcontrib><title>UV-B affects within-seed biomass allocation and chemical provisioning</title><title>The New phytologist</title><description>• Here we investigated the accuracy of measurements at the whole seed level in estimating seed and seedling quality. Specifically, we asked: 'Do measurements at the whole seed level mask important differences in testa or embryo quality?' and 'Are chemicals provisioned to seeds present in seedlings post-germination?' • We measured the allocation of biomass and distribution of UV-absorbing compounds to testas and embryos of Brassica rapa seeds derived from plants grown in the presence and absence of UV-B. The concentration of UV-absorbing compounds in cotyledons was also quantified. • Differences in seed quality were only detected when testas were analyzed separately from embryos. UV-B decreased testa mass by 18% and increased the concentration of UV-absorbing compounds in the testa by 158%. The increased chemical provisioning to testas was not evident post-germination, as the concentration of UV-absorbing compounds in cotyledons was independent of parental environment. • Our results suggest that measurements at the whole seed level conceal significant differences in testa quality, and chemicals provisioned to testas do not affect progeny chemistry during establishment.</description><subject>Agronomy. Soil science and plant productions</subject><subject>allocation</subject><subject>Average linear density</subject><subject>Biological and medical sciences</subject><subject>Biomass</subject><subject>Brassica rapa</subject><subject>Chemicals</subject><subject>Cotyledons</subject><subject>Economic plant physiology</subject><subject>embryo</subject><subject>embryo (plant)</subject><subject>Embryos</subject><subject>Fructification and ripening</subject><subject>Fructification, ripening. Postharvest physiology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Growth and development</subject><subject>parental (maternal) effects</subject><subject>Plant physiology and development</subject><subject>Plants</subject><subject>provisioning</subject><subject>Seed quality</subject><subject>Seedlings</subject><subject>Seeds</subject><subject>Testa</subject><subject>testa (seed coat)</subject><subject>ultraviolet radiation</subject><subject>Vegetative and sexual reproduction, floral biology, fructification</subject><issn>0028-646X</issn><issn>1469-8137</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqNUUtLxDAQDqLg-vgHgr3orXWSpml68KDiC0QFXfEWZtOpZum22tTXvze1oh7NZcJ8j5l8YSzikPBw9uYJl6qINU_zRADIBDjwNHlfYpMfYJlNAISOlVT3q2zN-zkAFJkSE3Y8vYsPI6wqsr2P3lz_6JrYE5XRzLUL9D7Cum4t9q5tImzKyD7Swlmso6eufXU-tF3zsMFWKqw9bX7XdTY9Ob49Oosvrk7Pjw4uYit5nsYzXpZgORZpznPAgnIlgGAm8ionkdkZSV0iCUzL1GagVShSCVXoihAEpetsd_QNw59fyPdm4bylusaG2hdvgmshudaBqEei7VrvO6rMU-cW2H0YDmbIzczNEI8Z4jFDbuYrN_MepDvfM9CHd1YdNtb5X32Wha1zEXj7I-_N1fTxb39zeX023IJ-a9TPfd92f_y5lFoFeHuEK2wNPnRhhemNCMLwc0rrTKef0OCTEg</recordid><startdate>200404</startdate><enddate>200404</enddate><creator>Griffen, Lauren R.</creator><creator>Wilczek, Amity M.</creator><creator>Bazzaz, Fakhri A.</creator><general>Blackwell Science</general><general>Blackwell Science Ltd</general><general>Blackwell</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>C1K</scope></search><sort><creationdate>200404</creationdate><title>UV-B affects within-seed biomass allocation and chemical provisioning</title><author>Griffen, Lauren R. ; Wilczek, Amity M. ; Bazzaz, Fakhri A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4173-b1dd0c1a937170a9e7620e0b27f7e25cbe48dae2a3d3c5086d3c462698fea02e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>allocation</topic><topic>Average linear density</topic><topic>Biological and medical sciences</topic><topic>Biomass</topic><topic>Brassica rapa</topic><topic>Chemicals</topic><topic>Cotyledons</topic><topic>Economic plant physiology</topic><topic>embryo</topic><topic>embryo (plant)</topic><topic>Embryos</topic><topic>Fructification and ripening</topic><topic>Fructification, ripening. Postharvest physiology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Growth and development</topic><topic>parental (maternal) effects</topic><topic>Plant physiology and development</topic><topic>Plants</topic><topic>provisioning</topic><topic>Seed quality</topic><topic>Seedlings</topic><topic>Seeds</topic><topic>Testa</topic><topic>testa (seed coat)</topic><topic>ultraviolet radiation</topic><topic>Vegetative and sexual reproduction, floral biology, fructification</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Griffen, Lauren R.</creatorcontrib><creatorcontrib>Wilczek, Amity M.</creatorcontrib><creatorcontrib>Bazzaz, Fakhri A.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>The New phytologist</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Griffen, Lauren R.</au><au>Wilczek, Amity M.</au><au>Bazzaz, Fakhri A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>UV-B affects within-seed biomass allocation and chemical provisioning</atitle><jtitle>The New phytologist</jtitle><date>2004-04</date><risdate>2004</risdate><volume>162</volume><issue>1</issue><spage>167</spage><epage>171</epage><pages>167-171</pages><issn>0028-646X</issn><eissn>1469-8137</eissn><coden>NEPHAV</coden><abstract>• Here we investigated the accuracy of measurements at the whole seed level in estimating seed and seedling quality. Specifically, we asked: 'Do measurements at the whole seed level mask important differences in testa or embryo quality?' and 'Are chemicals provisioned to seeds present in seedlings post-germination?' • We measured the allocation of biomass and distribution of UV-absorbing compounds to testas and embryos of Brassica rapa seeds derived from plants grown in the presence and absence of UV-B. The concentration of UV-absorbing compounds in cotyledons was also quantified. • Differences in seed quality were only detected when testas were analyzed separately from embryos. UV-B decreased testa mass by 18% and increased the concentration of UV-absorbing compounds in the testa by 158%. The increased chemical provisioning to testas was not evident post-germination, as the concentration of UV-absorbing compounds in cotyledons was independent of parental environment. • Our results suggest that measurements at the whole seed level conceal significant differences in testa quality, and chemicals provisioned to testas do not affect progeny chemistry during establishment.</abstract><cop>Oxford, UK</cop><pub>Blackwell Science</pub><doi>10.1111/j.1469-8137.2004.01013.x</doi><tpages>5</tpages></addata></record> |
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| source | Jstor Complete Legacy; Wiley Free Content; IngentaConnect Free/Open Access Journals; Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Agronomy. Soil science and plant productions allocation Average linear density Biological and medical sciences Biomass Brassica rapa Chemicals Cotyledons Economic plant physiology embryo embryo (plant) Embryos Fructification and ripening Fructification, ripening. Postharvest physiology Fundamental and applied biological sciences. Psychology Growth and development parental (maternal) effects Plant physiology and development Plants provisioning Seed quality Seedlings Seeds Testa testa (seed coat) ultraviolet radiation Vegetative and sexual reproduction, floral biology, fructification |
| title | UV-B affects within-seed biomass allocation and chemical provisioning |
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