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Temporal and Spatial Patterns of Zinc and Iron Accumulation during Barley (Hordeum vulgare L.) Grain Development
Breeding and engineering of biofortified crops will benefit from a better understanding of bottlenecks controlling micronutrient loading within the seeds. However, few studies have addressed the changes in micronutrient concentrations, localization, and speciation occurring over time. Therefore, we...
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Published in: | Journal of agricultural and food chemistry 2020-11, Vol.68 (44), p.12229-12240 |
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container_title | Journal of agricultural and food chemistry |
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creator | Detterbeck, Amelie Pongrac, Paula Persson, Daniel P Vogel-Mikuš, Katarina Kelemen, Mitja Vavpetič, Primož Pelicon, Primož Arčon, Iztok Husted, Søren Kofod Schjoerring, Jan Clemens, Stephan |
description | Breeding and engineering of biofortified crops will benefit from a better understanding of bottlenecks controlling micronutrient loading within the seeds. However, few studies have addressed the changes in micronutrient concentrations, localization, and speciation occurring over time. Therefore, we studied spatial patterns of zinc and iron accumulation during grain development in two barley lines with contrasting grain zinc concentrations. Microparticle-induced-X-ray emission and laser ablation-inductively coupled plasma mass spectrometry were used to determine tissue-specific accumulation of zinc, iron, phosphorus, and sulfur. Differences in zinc accumulation between the lines were most evident in the endosperm and aleurone. A gradual decrease in zinc concentrations from the aleurone to the underlying endosperm was observed, while iron and phosphorus concentrations decreased sharply. Iron co-localized with phosphorus in the aleurone, whereas zinc co-localized with sulfur in the sub-aleurone. We hypothesize that differences in grain zinc are largely explained by the endosperm storage capacity. Engineering attempts should be targeted accordingly. |
doi_str_mv | 10.1021/acs.jafc.0c04833 |
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Engineering attempts should be targeted accordingly.</description><identifier>ISSN: 0021-8561</identifier><identifier>EISSN: 1520-5118</identifier><identifier>DOI: 10.1021/acs.jafc.0c04833</identifier><identifier>PMID: 33070613</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>Agricultural and Environmental Chemistry ; Edible Grain - chemistry ; Edible Grain - growth & development ; Edible Grain - metabolism ; Endosperm - chemistry ; Endosperm - metabolism ; Hordeum - chemistry ; Hordeum - growth & development ; Hordeum - metabolism ; Iron - analysis ; Iron - metabolism ; Micronutrients - analysis ; Micronutrients - metabolism ; Seeds - chemistry ; Seeds - growth & development ; Seeds - metabolism ; Zinc - analysis ; Zinc - metabolism</subject><ispartof>Journal of agricultural and food chemistry, 2020-11, Vol.68 (44), p.12229-12240</ispartof><rights>2020 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a336t-2077ec6fb0101a800dd1ad1e7bf60cff7fb5eb3c45191fa48b81879673c0ae703</citedby><cites>FETCH-LOGICAL-a336t-2077ec6fb0101a800dd1ad1e7bf60cff7fb5eb3c45191fa48b81879673c0ae703</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33070613$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Detterbeck, Amelie</creatorcontrib><creatorcontrib>Pongrac, Paula</creatorcontrib><creatorcontrib>Persson, Daniel P</creatorcontrib><creatorcontrib>Vogel-Mikuš, Katarina</creatorcontrib><creatorcontrib>Kelemen, Mitja</creatorcontrib><creatorcontrib>Vavpetič, Primož</creatorcontrib><creatorcontrib>Pelicon, Primož</creatorcontrib><creatorcontrib>Arčon, Iztok</creatorcontrib><creatorcontrib>Husted, Søren</creatorcontrib><creatorcontrib>Kofod Schjoerring, Jan</creatorcontrib><creatorcontrib>Clemens, Stephan</creatorcontrib><title>Temporal and Spatial Patterns of Zinc and Iron Accumulation during Barley (Hordeum vulgare L.) Grain Development</title><title>Journal of agricultural and food chemistry</title><addtitle>J. Agric. Food Chem</addtitle><description>Breeding and engineering of biofortified crops will benefit from a better understanding of bottlenecks controlling micronutrient loading within the seeds. However, few studies have addressed the changes in micronutrient concentrations, localization, and speciation occurring over time. Therefore, we studied spatial patterns of zinc and iron accumulation during grain development in two barley lines with contrasting grain zinc concentrations. Microparticle-induced-X-ray emission and laser ablation-inductively coupled plasma mass spectrometry were used to determine tissue-specific accumulation of zinc, iron, phosphorus, and sulfur. Differences in zinc accumulation between the lines were most evident in the endosperm and aleurone. A gradual decrease in zinc concentrations from the aleurone to the underlying endosperm was observed, while iron and phosphorus concentrations decreased sharply. Iron co-localized with phosphorus in the aleurone, whereas zinc co-localized with sulfur in the sub-aleurone. We hypothesize that differences in grain zinc are largely explained by the endosperm storage capacity. Engineering attempts should be targeted accordingly.</description><subject>Agricultural and Environmental Chemistry</subject><subject>Edible Grain - chemistry</subject><subject>Edible Grain - growth & development</subject><subject>Edible Grain - metabolism</subject><subject>Endosperm - chemistry</subject><subject>Endosperm - metabolism</subject><subject>Hordeum - chemistry</subject><subject>Hordeum - growth & development</subject><subject>Hordeum - metabolism</subject><subject>Iron - analysis</subject><subject>Iron - metabolism</subject><subject>Micronutrients - analysis</subject><subject>Micronutrients - metabolism</subject><subject>Seeds - chemistry</subject><subject>Seeds - growth & development</subject><subject>Seeds - metabolism</subject><subject>Zinc - analysis</subject><subject>Zinc - metabolism</subject><issn>0021-8561</issn><issn>1520-5118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kEFv1DAQRi1ERZfCnRPysUhkmVkncfZY2tJWWgkkyoVLNHHGVarEDnZcqf8et7tw62k88vs-aZ4QHxDWCBv8Qiau78maNRgoG6VeiRVWGygqxOa1WEFmiqaq8Vi8jfEeAJpKwxtxrBRoqFGtxHzL0-wDjZJcL3_OtAz5_YOWhYOL0lv5e3Dm-fMmeCfPjElTGjOWlz6Fwd3JrxRGfpSn1z70nCb5kMY7Cix360_yKtDg5AU_8Ojnid3yThxZGiO_P8wT8evb5e35dbH7fnVzfrYrSKl6KTagNZvadoCA1AD0PVKPrDtbg7FW267iTpmywi1aKpuuwUZva60MEGtQJ-J03zsH_ydxXNppiIbHkRz7FNtNmUVtqxIxo7BHTfAxBrbtHIaJwmOL0D55brPn9slze_CcIx8P7ambuP8f-Cc2A5_3wHPUp-DysS_3_QVYM4lp</recordid><startdate>20201104</startdate><enddate>20201104</enddate><creator>Detterbeck, Amelie</creator><creator>Pongrac, Paula</creator><creator>Persson, Daniel P</creator><creator>Vogel-Mikuš, Katarina</creator><creator>Kelemen, Mitja</creator><creator>Vavpetič, Primož</creator><creator>Pelicon, Primož</creator><creator>Arčon, Iztok</creator><creator>Husted, Søren</creator><creator>Kofod Schjoerring, Jan</creator><creator>Clemens, Stephan</creator><general>American Chemical Society</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>7X8</scope></search><sort><creationdate>20201104</creationdate><title>Temporal and Spatial Patterns of Zinc and Iron Accumulation during Barley (Hordeum vulgare L.) 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subjects | Agricultural and Environmental Chemistry Edible Grain - chemistry Edible Grain - growth & development Edible Grain - metabolism Endosperm - chemistry Endosperm - metabolism Hordeum - chemistry Hordeum - growth & development Hordeum - metabolism Iron - analysis Iron - metabolism Micronutrients - analysis Micronutrients - metabolism Seeds - chemistry Seeds - growth & development Seeds - metabolism Zinc - analysis Zinc - metabolism |
title | Temporal and Spatial Patterns of Zinc and Iron Accumulation during Barley (Hordeum vulgare L.) Grain Development |
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