Effects of magnesium deficiency on magnesium uptake activity of rice root, evaluated using ^sup 28^Mg as a tracer
Issue Title: Improving Crop Mineral Nutrition The mechanisms underlying magnesium (Mg) uptake by plant roots remain to be fully elucidated. In particular, there is little information about the effects of Mg deficiency on Mg uptake activity. A Mg uptake kinetic study is essential for better understan...
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| Veröffentlicht in: | Plant and soil 2014-11, Vol.384 (1-2), p.69 |
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| creator | Tanoi, Keitaro Kobayashi, Natsuko I Saito, Takayuki Iwata, Naoko Kamada, Risa Iwata, Ren Suzuki, Hisashi Hirose, Atsushi Ohmae, Yoshimi Sugita, Ryohei Nakanishi, Tomoko M |
| description | Issue Title: Improving Crop Mineral Nutrition The mechanisms underlying magnesium (Mg) uptake by plant roots remain to be fully elucidated. In particular, there is little information about the effects of Mg deficiency on Mg uptake activity. A Mg uptake kinetic study is essential for better understanding the Mg uptake system. We performed a Mg uptake tracer experiment in rice plants using ^sup 28^Mg. Mg uptake was mediated by high- and low-affinity transport systems. The K ^sub m^ value of the high-affinity transport system was approximately 70 [mu]M under Mg-deficient conditions. The Mg uptake activity was promoted by Mg deficiency, which in turn fell to the basal level after 5- min of Mg resupply. The induced uptake rate was inhibited by ionophore treatment, suggesting that an energy-dependent uptake system is enhanced by Mg deficiency. The Mg uptake changes rapidly with Mg conditions in rice, as revealed by a ^sup 28^Mg tracer experiment. This technique is expected to be applicable for Mg uptake analyses, particularly in mutants or other lines.[PUBLICATION ABSTRACT] |
| doi_str_mv | 10.1007/s11104-014-2197-3 |
| format | Article |
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In particular, there is little information about the effects of Mg deficiency on Mg uptake activity. A Mg uptake kinetic study is essential for better understanding the Mg uptake system. We performed a Mg uptake tracer experiment in rice plants using ^sup 28^Mg. Mg uptake was mediated by high- and low-affinity transport systems. The K ^sub m^ value of the high-affinity transport system was approximately 70 [mu]M under Mg-deficient conditions. The Mg uptake activity was promoted by Mg deficiency, which in turn fell to the basal level after 5- min of Mg resupply. The induced uptake rate was inhibited by ionophore treatment, suggesting that an energy-dependent uptake system is enhanced by Mg deficiency. The Mg uptake changes rapidly with Mg conditions in rice, as revealed by a ^sup 28^Mg tracer experiment. This technique is expected to be applicable for Mg uptake analyses, particularly in mutants or other lines.[PUBLICATION ABSTRACT]</description><identifier>ISSN: 0032-079X</identifier><identifier>EISSN: 1573-5036</identifier><identifier>DOI: 10.1007/s11104-014-2197-3</identifier><language>eng</language><publisher>Dordrecht: Springer Nature B.V</publisher><subject>Kinetics ; Magnesium ; Radioisotopes ; Rice ; Soil fertility</subject><ispartof>Plant and soil, 2014-11, Vol.384 (1-2), p.69</ispartof><rights>Springer International Publishing Switzerland 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Tanoi, Keitaro</creatorcontrib><creatorcontrib>Kobayashi, Natsuko I</creatorcontrib><creatorcontrib>Saito, Takayuki</creatorcontrib><creatorcontrib>Iwata, Naoko</creatorcontrib><creatorcontrib>Kamada, Risa</creatorcontrib><creatorcontrib>Iwata, Ren</creatorcontrib><creatorcontrib>Suzuki, Hisashi</creatorcontrib><creatorcontrib>Hirose, Atsushi</creatorcontrib><creatorcontrib>Ohmae, Yoshimi</creatorcontrib><creatorcontrib>Sugita, Ryohei</creatorcontrib><creatorcontrib>Nakanishi, Tomoko M</creatorcontrib><title>Effects of magnesium deficiency on magnesium uptake activity of rice root, evaluated using ^sup 28^Mg as a tracer</title><title>Plant and soil</title><description>Issue Title: Improving Crop Mineral Nutrition The mechanisms underlying magnesium (Mg) uptake by plant roots remain to be fully elucidated. In particular, there is little information about the effects of Mg deficiency on Mg uptake activity. A Mg uptake kinetic study is essential for better understanding the Mg uptake system. We performed a Mg uptake tracer experiment in rice plants using ^sup 28^Mg. Mg uptake was mediated by high- and low-affinity transport systems. The K ^sub m^ value of the high-affinity transport system was approximately 70 [mu]M under Mg-deficient conditions. The Mg uptake activity was promoted by Mg deficiency, which in turn fell to the basal level after 5- min of Mg resupply. The induced uptake rate was inhibited by ionophore treatment, suggesting that an energy-dependent uptake system is enhanced by Mg deficiency. The Mg uptake changes rapidly with Mg conditions in rice, as revealed by a ^sup 28^Mg tracer experiment. This technique is expected to be applicable for Mg uptake analyses, particularly in mutants or other lines.[PUBLICATION ABSTRACT]</description><subject>Kinetics</subject><subject>Magnesium</subject><subject>Radioisotopes</subject><subject>Rice</subject><subject>Soil fertility</subject><issn>0032-079X</issn><issn>1573-5036</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqNi7tOAzEQRS0EEsvjA-hGosUws07spEZBNOkoqBJZznjlkNgbPyLl7yESBSXV1T33XCEeCJ8J0bwUIsKJRJrInuZGqgvR0dQoOUWlL0WHqHqJZv55LW5K2eK5k-7EYeE9u1ogedjbIXIJbQ8b9sEFju4EKf7hbaz2i8G6Go6hns6nHBxDTqk-AR_trtnKG2glxAFWpY3Qz1bLAWwBCzVbx_lOXHm7K3z_m7fi8W3x8foux5wOjUtdb1PL8WdakyaNRumZUf-zvgF8uVEr</recordid><startdate>20141101</startdate><enddate>20141101</enddate><creator>Tanoi, Keitaro</creator><creator>Kobayashi, Natsuko I</creator><creator>Saito, Takayuki</creator><creator>Iwata, Naoko</creator><creator>Kamada, Risa</creator><creator>Iwata, Ren</creator><creator>Suzuki, Hisashi</creator><creator>Hirose, Atsushi</creator><creator>Ohmae, Yoshimi</creator><creator>Sugita, Ryohei</creator><creator>Nakanishi, Tomoko M</creator><general>Springer Nature B.V</general><scope>3V.</scope><scope>7SN</scope><scope>7ST</scope><scope>7T7</scope><scope>7X2</scope><scope>88A</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>LK8</scope><scope>M0K</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>RC3</scope><scope>SOI</scope></search><sort><creationdate>20141101</creationdate><title>Effects of magnesium deficiency on magnesium uptake activity of rice root, evaluated using ^sup 28^Mg as a tracer</title><author>Tanoi, Keitaro ; 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In particular, there is little information about the effects of Mg deficiency on Mg uptake activity. A Mg uptake kinetic study is essential for better understanding the Mg uptake system. We performed a Mg uptake tracer experiment in rice plants using ^sup 28^Mg. Mg uptake was mediated by high- and low-affinity transport systems. The K ^sub m^ value of the high-affinity transport system was approximately 70 [mu]M under Mg-deficient conditions. The Mg uptake activity was promoted by Mg deficiency, which in turn fell to the basal level after 5- min of Mg resupply. The induced uptake rate was inhibited by ionophore treatment, suggesting that an energy-dependent uptake system is enhanced by Mg deficiency. The Mg uptake changes rapidly with Mg conditions in rice, as revealed by a ^sup 28^Mg tracer experiment. 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| subjects | Kinetics Magnesium Radioisotopes Rice Soil fertility |
| title | Effects of magnesium deficiency on magnesium uptake activity of rice root, evaluated using ^sup 28^Mg as a tracer |
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