Adenosine phosphates in germinating radish (Raphanus sativus L.) seeds
Changes in concentrations of adenosine phosphates (AMP, ADP, and ATP), oxygen utilization, and fresh weights were measured during the first 48 hours after imbibition of water by quiescent radish seeds (Raphanus sativus L.) at 22.5 C. The changes in ATP concentrations, oxygen utilization, and fresh w...
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Veröffentlicht in: | Plant physiology (Bethesda) 1974-10, Vol.54 (4), p.560-563 |
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description | Changes in concentrations of adenosine phosphates (AMP, ADP, and ATP), oxygen utilization, and fresh weights were measured during the first 48 hours after imbibition of water by quiescent radish seeds (Raphanus sativus L.) at 22.5 C. The changes in ATP concentrations, oxygen utilization, and fresh weights followed a triphasic time course, characterized by a rapid initial increase, which extended from 0 to approximately 1.5 hours, a lag phase from 1.5 to 16 hours, and a sharp linear increase from 16 to 48 hours. In unimbibed seeds, the concentrations of ATP, ADP, and AMP were |
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The changes in ATP concentrations, oxygen utilization, and fresh weights followed a triphasic time course, characterized by a rapid initial increase, which extended from 0 to approximately 1.5 hours, a lag phase from 1.5 to 16 hours, and a sharp linear increase from 16 to 48 hours. In unimbibed seeds, the concentrations of ATP, ADP, and AMP were <0.1, 0.9, and 2.2 nmoles/seed, respectively. After imbibition of water by the quiescent seeds, for 1 hour, the ATP concentration had increased to 2.5, and ADP and AMP concentrations had decreased to 0.3 and 0.1 nmole/seed, respectively. These early changes occurred also in seeds maintained under anaerobic conditions (argon), or when treated with either 5 mM fluoroacetate, or 5 mM iodoacetate. The concentrations of ADP and AMP did not change significantly from 1 to 48 hours. The termination of the lag phase at 16 hours correlated with radicle emergence. Cell division in the radicles was initiated at approximately 28 hours. ATP concentrations in seeds maintained under argon or treated with fluoroacetate remained relatively constant from approximately 2 to 48 hours. In contrast, the ATP concentration of iodoacetate-treated seeds decreased curvilinearly from 4 to 48 hours. Oxidative phosphorylation was estimated to have contributed 15, 20, and 65% of the pool ATP at 1.5, 16, and 48 hours, respectively.</description><identifier>ISSN: 0032-0889</identifier><identifier>EISSN: 1532-2548</identifier><identifier>DOI: 10.1104/pp.54.4.560</identifier><identifier>PMID: 16658928</identifier><language>eng</language><publisher>United States: American Society of Plant Physiologists</publisher><subject>Adenine nucleotides ; Argon ; Germination ; Imbibition ; Oxygen ; Plants ; Radishes ; Seedlings ; Seeds ; Water uptake</subject><ispartof>Plant physiology (Bethesda), 1974-10, Vol.54 (4), p.560-563</ispartof><rights>Copyright 1974 The American Society of Plant Physiologists</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c388t-42680adfb794489146fede27591e0c3715b0c311486fe7ecbf66106f7307adef3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/4263769$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/4263769$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,776,780,799,881,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16658928$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Moreland, D E</creatorcontrib><creatorcontrib>Hussey, G G</creatorcontrib><creatorcontrib>Shriner, C R</creatorcontrib><creatorcontrib>Farmer, F S</creatorcontrib><creatorcontrib>Landwirtschaftliche Forschungsanstalt Buentehof, Hannover (Germany, F.R.)</creatorcontrib><title>Adenosine phosphates in germinating radish (Raphanus sativus L.) seeds</title><title>Plant physiology (Bethesda)</title><addtitle>Plant Physiol</addtitle><description>Changes in concentrations of adenosine phosphates (AMP, ADP, and ATP), oxygen utilization, and fresh weights were measured during the first 48 hours after imbibition of water by quiescent radish seeds (Raphanus sativus L.) at 22.5 C. The changes in ATP concentrations, oxygen utilization, and fresh weights followed a triphasic time course, characterized by a rapid initial increase, which extended from 0 to approximately 1.5 hours, a lag phase from 1.5 to 16 hours, and a sharp linear increase from 16 to 48 hours. In unimbibed seeds, the concentrations of ATP, ADP, and AMP were <0.1, 0.9, and 2.2 nmoles/seed, respectively. After imbibition of water by the quiescent seeds, for 1 hour, the ATP concentration had increased to 2.5, and ADP and AMP concentrations had decreased to 0.3 and 0.1 nmole/seed, respectively. These early changes occurred also in seeds maintained under anaerobic conditions (argon), or when treated with either 5 mM fluoroacetate, or 5 mM iodoacetate. The concentrations of ADP and AMP did not change significantly from 1 to 48 hours. The termination of the lag phase at 16 hours correlated with radicle emergence. Cell division in the radicles was initiated at approximately 28 hours. ATP concentrations in seeds maintained under argon or treated with fluoroacetate remained relatively constant from approximately 2 to 48 hours. In contrast, the ATP concentration of iodoacetate-treated seeds decreased curvilinearly from 4 to 48 hours. Oxidative phosphorylation was estimated to have contributed 15, 20, and 65% of the pool ATP at 1.5, 16, and 48 hours, respectively.</description><subject>Adenine nucleotides</subject><subject>Argon</subject><subject>Germination</subject><subject>Imbibition</subject><subject>Oxygen</subject><subject>Plants</subject><subject>Radishes</subject><subject>Seedlings</subject><subject>Seeds</subject><subject>Water uptake</subject><issn>0032-0889</issn><issn>1532-2548</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1974</creationdate><recordtype>article</recordtype><recordid>eNpVkUtrGzEUhUVpqJ00q25LmV0TgifS6DmLLoLJCwyBPNZCnrljy9jSVHdsyL-Pik3SrM5F5zuSOJeQH4yWjFFx2felFKUopaJfyJhJXk0qKcxXMqY0z9SYekSOEVeUUsaZ-EZGTClp6sqMyc1VCyGiD1D0y4j90g2AhQ_FAtLGBzf4sCiSaz0ui7NHl_2wxQLz-S7rrDwvEKDF7-Soc2uE04OekJeb6-fp3WT2cHs_vZpNGm7MMBGVMtS13VzXQpiaCdVBC5WWNQPacM3kPAtjwmRDQzPvlGJUdZpT7Vro-An5s7-338430DYQhuTWtk9-49Krjc7bz07wS7uIO8uVFpLn_O9DPsW_W8DBbjw2sF67AHGLVnMujFBGZPJiTzYpIibo3h9h1P7r3fa9lcIKm3vP9K____XBHorOwM89sMIhpnc_F8K1qj_ynYvWLZJH-_LEai3zzpSWmr8BE7CROQ</recordid><startdate>19741001</startdate><enddate>19741001</enddate><creator>Moreland, D E</creator><creator>Hussey, G G</creator><creator>Shriner, C R</creator><creator>Farmer, F S</creator><general>American Society of Plant Physiologists</general><scope>FBQ</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>19741001</creationdate><title>Adenosine phosphates in germinating radish (Raphanus sativus L.) seeds</title><author>Moreland, D E ; Hussey, G G ; Shriner, C R ; Farmer, F S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c388t-42680adfb794489146fede27591e0c3715b0c311486fe7ecbf66106f7307adef3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1974</creationdate><topic>Adenine nucleotides</topic><topic>Argon</topic><topic>Germination</topic><topic>Imbibition</topic><topic>Oxygen</topic><topic>Plants</topic><topic>Radishes</topic><topic>Seedlings</topic><topic>Seeds</topic><topic>Water uptake</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Moreland, D E</creatorcontrib><creatorcontrib>Hussey, G G</creatorcontrib><creatorcontrib>Shriner, C R</creatorcontrib><creatorcontrib>Farmer, F S</creatorcontrib><creatorcontrib>Landwirtschaftliche Forschungsanstalt Buentehof, Hannover (Germany, F.R.)</creatorcontrib><collection>AGRIS</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Plant physiology (Bethesda)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Moreland, D E</au><au>Hussey, G G</au><au>Shriner, C R</au><au>Farmer, F S</au><aucorp>Landwirtschaftliche Forschungsanstalt Buentehof, Hannover (Germany, F.R.)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Adenosine phosphates in germinating radish (Raphanus sativus L.) seeds</atitle><jtitle>Plant physiology (Bethesda)</jtitle><addtitle>Plant Physiol</addtitle><date>1974-10-01</date><risdate>1974</risdate><volume>54</volume><issue>4</issue><spage>560</spage><epage>563</epage><pages>560-563</pages><issn>0032-0889</issn><eissn>1532-2548</eissn><abstract>Changes in concentrations of adenosine phosphates (AMP, ADP, and ATP), oxygen utilization, and fresh weights were measured during the first 48 hours after imbibition of water by quiescent radish seeds (Raphanus sativus L.) at 22.5 C. The changes in ATP concentrations, oxygen utilization, and fresh weights followed a triphasic time course, characterized by a rapid initial increase, which extended from 0 to approximately 1.5 hours, a lag phase from 1.5 to 16 hours, and a sharp linear increase from 16 to 48 hours. In unimbibed seeds, the concentrations of ATP, ADP, and AMP were <0.1, 0.9, and 2.2 nmoles/seed, respectively. After imbibition of water by the quiescent seeds, for 1 hour, the ATP concentration had increased to 2.5, and ADP and AMP concentrations had decreased to 0.3 and 0.1 nmole/seed, respectively. These early changes occurred also in seeds maintained under anaerobic conditions (argon), or when treated with either 5 mM fluoroacetate, or 5 mM iodoacetate. The concentrations of ADP and AMP did not change significantly from 1 to 48 hours. The termination of the lag phase at 16 hours correlated with radicle emergence. Cell division in the radicles was initiated at approximately 28 hours. ATP concentrations in seeds maintained under argon or treated with fluoroacetate remained relatively constant from approximately 2 to 48 hours. In contrast, the ATP concentration of iodoacetate-treated seeds decreased curvilinearly from 4 to 48 hours. Oxidative phosphorylation was estimated to have contributed 15, 20, and 65% of the pool ATP at 1.5, 16, and 48 hours, respectively.</abstract><cop>United States</cop><pub>American Society of Plant Physiologists</pub><pmid>16658928</pmid><doi>10.1104/pp.54.4.560</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Adenine nucleotides Argon Germination Imbibition Oxygen Plants Radishes Seedlings Seeds Water uptake |
title | Adenosine phosphates in germinating radish (Raphanus sativus L.) seeds |
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