Tetraploidization of diploid Dioscorea results in activation of the antioxidant defense system and increased heat tolerance
Polyploidy is reported to show increased tolerance to environmental stress. In this work, tetraploid plants of Dioscorea zingiberensis were obtained by colchicine treatment of shoots propagated in vitro. The highest tetraploid induction rate was achieved by treatment with 0.15% colchicine for 24 h....
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| Veröffentlicht in: | Journal of plant physiology 2010-01, Vol.167 (2), p.88-94 |
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| creator | Zhang, Xiao-Yi Hu, Chun-Gen Yao, Jia-Ling |
| description | Polyploidy is reported to show increased tolerance to environmental stress. In this work, tetraploid plants of
Dioscorea zingiberensis were obtained by colchicine treatment of shoots propagated
in vitro. The highest tetraploid induction rate was achieved by treatment with 0.15% colchicine for 24
h. Diploid and tetraploid plants were exposed to normal (28
°C) and high temperature (42
°C) for 5
d during which physiological indices were measured. Compared with diploid plants, relative electrolyte leakage and contents of malondialdehyde, superoxide anions and hydrogen peroxide were lower in tetraploids, while activities of antioxidant enzymes, such as superoxide dismutase, peroxidase, catalase, ascorbate peroxidase and glutathione reductase, were stimulated and antioxidants (ascorbic acid and glutathione) were maintained at high concentrations. These results indicate that tetraploid plants possess a stronger antioxidant defense system and increased heat tolerance. |
| doi_str_mv | 10.1016/j.jplph.2009.07.006 |
| format | Article |
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Dioscorea zingiberensis were obtained by colchicine treatment of shoots propagated
in vitro. The highest tetraploid induction rate was achieved by treatment with 0.15% colchicine for 24
h. Diploid and tetraploid plants were exposed to normal (28
°C) and high temperature (42
°C) for 5
d during which physiological indices were measured. Compared with diploid plants, relative electrolyte leakage and contents of malondialdehyde, superoxide anions and hydrogen peroxide were lower in tetraploids, while activities of antioxidant enzymes, such as superoxide dismutase, peroxidase, catalase, ascorbate peroxidase and glutathione reductase, were stimulated and antioxidants (ascorbic acid and glutathione) were maintained at high concentrations. These results indicate that tetraploid plants possess a stronger antioxidant defense system and increased heat tolerance.</description><identifier>ISSN: 0176-1617</identifier><identifier>EISSN: 1618-1328</identifier><identifier>DOI: 10.1016/j.jplph.2009.07.006</identifier><identifier>PMID: 19692145</identifier><identifier>CODEN: JPPHEY</identifier><language>eng</language><publisher>Munich: Elsevier GmbH</publisher><subject>antioxidant activity ; Antioxidant system ; Antioxidants - metabolism ; Ascorbate Peroxidases ; ascorbic acid ; Ascorbic Acid - metabolism ; autopolyploidy ; Biological and medical sciences ; Catalase - metabolism ; Dioscorea ; Dioscorea - genetics ; Dioscorea - metabolism ; Dioscorea zingiberensis ; diploidy ; enzyme activity ; Fundamental and applied biological sciences. Psychology ; glutathione ; Glutathione - metabolism ; Glutathione Reductase - metabolism ; heat stress ; heat tolerance ; High-temperature stress ; Hot Temperature - adverse effects ; hydrogen peroxide ; Hydrogen Peroxide - metabolism ; malondialdehyde ; Malondialdehyde - metabolism ; Peroxidase - metabolism ; Peroxidases - metabolism ; physiological response ; Plant physiology and development ; plant response ; plant stress ; Polyploidy ; relative electrolyte leakage ; superoxide anion ; Superoxide Dismutase - metabolism ; Tetraploid ; tetraploidy</subject><ispartof>Journal of plant physiology, 2010-01, Vol.167 (2), p.88-94</ispartof><rights>2009 Elsevier GmbH</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c509t-e4fb45447239eef1c0bafe66ee5db5c8c5e983a8888a84493d438dc815708c6a3</citedby><cites>FETCH-LOGICAL-c509t-e4fb45447239eef1c0bafe66ee5db5c8c5e983a8888a84493d438dc815708c6a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0176161709003034$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22405535$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19692145$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Xiao-Yi</creatorcontrib><creatorcontrib>Hu, Chun-Gen</creatorcontrib><creatorcontrib>Yao, Jia-Ling</creatorcontrib><title>Tetraploidization of diploid Dioscorea results in activation of the antioxidant defense system and increased heat tolerance</title><title>Journal of plant physiology</title><addtitle>J Plant Physiol</addtitle><description>Polyploidy is reported to show increased tolerance to environmental stress. In this work, tetraploid plants of
Dioscorea zingiberensis were obtained by colchicine treatment of shoots propagated
in vitro. The highest tetraploid induction rate was achieved by treatment with 0.15% colchicine for 24
h. Diploid and tetraploid plants were exposed to normal (28
°C) and high temperature (42
°C) for 5
d during which physiological indices were measured. Compared with diploid plants, relative electrolyte leakage and contents of malondialdehyde, superoxide anions and hydrogen peroxide were lower in tetraploids, while activities of antioxidant enzymes, such as superoxide dismutase, peroxidase, catalase, ascorbate peroxidase and glutathione reductase, were stimulated and antioxidants (ascorbic acid and glutathione) were maintained at high concentrations. These results indicate that tetraploid plants possess a stronger antioxidant defense system and increased heat tolerance.</description><subject>antioxidant activity</subject><subject>Antioxidant system</subject><subject>Antioxidants - metabolism</subject><subject>Ascorbate Peroxidases</subject><subject>ascorbic acid</subject><subject>Ascorbic Acid - metabolism</subject><subject>autopolyploidy</subject><subject>Biological and medical sciences</subject><subject>Catalase - metabolism</subject><subject>Dioscorea</subject><subject>Dioscorea - genetics</subject><subject>Dioscorea - metabolism</subject><subject>Dioscorea zingiberensis</subject><subject>diploidy</subject><subject>enzyme activity</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>glutathione</subject><subject>Glutathione - metabolism</subject><subject>Glutathione Reductase - metabolism</subject><subject>heat stress</subject><subject>heat tolerance</subject><subject>High-temperature stress</subject><subject>Hot Temperature - adverse effects</subject><subject>hydrogen peroxide</subject><subject>Hydrogen Peroxide - metabolism</subject><subject>malondialdehyde</subject><subject>Malondialdehyde - metabolism</subject><subject>Peroxidase - metabolism</subject><subject>Peroxidases - metabolism</subject><subject>physiological response</subject><subject>Plant physiology and development</subject><subject>plant response</subject><subject>plant stress</subject><subject>Polyploidy</subject><subject>relative electrolyte leakage</subject><subject>superoxide anion</subject><subject>Superoxide Dismutase - metabolism</subject><subject>Tetraploid</subject><subject>tetraploidy</subject><issn>0176-1617</issn><issn>1618-1328</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kU1vEzEQhi0EomnhFyCBL5TTBnv9sd5DD6h8SpU40J4tx54ljjbrxXYqCn-eSROVW-3DaMbPO7Lel5BXnC054_r9ZrmZx3m9bBnrl6xbMqafkAXX3DRctOYpWTDe6QYH3Qk5LWXDsFdGPCcnvNd9y6VakL_XULObxxRD_ONqTBNNAw3xfkI_xlR8yuBohrIba6Fxos7XePuA1jVQN2H3OwasNMAAUwFa7kqFLT4F1HhcUSDQNbhKaxohu8nDC_JscGOBl8d6Rm4-f7q-_Npcff_y7fLDVeMV62sDclhJJWXXih5g4J6t3ABaA6iwUt54Bb0RzuBxRspeBClM8IarjhmvnTgj7w5755x-7aBUu43Fwzi6CdKu2E5INKRlPZLnj5JC4-VcIigOoM-plAyDnXPcunxnObP7dOzG3qdj9-lY1llMB1Wvj-t3qy2E_5pjHAi8PQKueDcOe5tieeDaVjKlxJ57c-AGl6z7mZG5-dEyLjBhro3qkLg4EIDG3kbItvgIaHqIGXy1IcVHv_oPZ9u6XQ</recordid><startdate>20100101</startdate><enddate>20100101</enddate><creator>Zhang, Xiao-Yi</creator><creator>Hu, Chun-Gen</creator><creator>Yao, Jia-Ling</creator><general>Elsevier GmbH</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><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>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>7X8</scope></search><sort><creationdate>20100101</creationdate><title>Tetraploidization of diploid Dioscorea results in activation of the antioxidant defense system and increased heat tolerance</title><author>Zhang, Xiao-Yi ; Hu, Chun-Gen ; Yao, Jia-Ling</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c509t-e4fb45447239eef1c0bafe66ee5db5c8c5e983a8888a84493d438dc815708c6a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>antioxidant activity</topic><topic>Antioxidant system</topic><topic>Antioxidants - metabolism</topic><topic>Ascorbate Peroxidases</topic><topic>ascorbic acid</topic><topic>Ascorbic Acid - metabolism</topic><topic>autopolyploidy</topic><topic>Biological and medical sciences</topic><topic>Catalase - metabolism</topic><topic>Dioscorea</topic><topic>Dioscorea - genetics</topic><topic>Dioscorea - metabolism</topic><topic>Dioscorea zingiberensis</topic><topic>diploidy</topic><topic>enzyme activity</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>glutathione</topic><topic>Glutathione - metabolism</topic><topic>Glutathione Reductase - metabolism</topic><topic>heat stress</topic><topic>heat tolerance</topic><topic>High-temperature stress</topic><topic>Hot Temperature - adverse effects</topic><topic>hydrogen peroxide</topic><topic>Hydrogen Peroxide - metabolism</topic><topic>malondialdehyde</topic><topic>Malondialdehyde - metabolism</topic><topic>Peroxidase - metabolism</topic><topic>Peroxidases - metabolism</topic><topic>physiological response</topic><topic>Plant physiology and development</topic><topic>plant response</topic><topic>plant stress</topic><topic>Polyploidy</topic><topic>relative electrolyte leakage</topic><topic>superoxide anion</topic><topic>Superoxide Dismutase - metabolism</topic><topic>Tetraploid</topic><topic>tetraploidy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Xiao-Yi</creatorcontrib><creatorcontrib>Hu, Chun-Gen</creatorcontrib><creatorcontrib>Yao, Jia-Ling</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of plant physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Xiao-Yi</au><au>Hu, Chun-Gen</au><au>Yao, Jia-Ling</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Tetraploidization of diploid Dioscorea results in activation of the antioxidant defense system and increased heat tolerance</atitle><jtitle>Journal of plant physiology</jtitle><addtitle>J Plant Physiol</addtitle><date>2010-01-01</date><risdate>2010</risdate><volume>167</volume><issue>2</issue><spage>88</spage><epage>94</epage><pages>88-94</pages><issn>0176-1617</issn><eissn>1618-1328</eissn><coden>JPPHEY</coden><abstract>Polyploidy is reported to show increased tolerance to environmental stress. In this work, tetraploid plants of
Dioscorea zingiberensis were obtained by colchicine treatment of shoots propagated
in vitro. The highest tetraploid induction rate was achieved by treatment with 0.15% colchicine for 24
h. Diploid and tetraploid plants were exposed to normal (28
°C) and high temperature (42
°C) for 5
d during which physiological indices were measured. Compared with diploid plants, relative electrolyte leakage and contents of malondialdehyde, superoxide anions and hydrogen peroxide were lower in tetraploids, while activities of antioxidant enzymes, such as superoxide dismutase, peroxidase, catalase, ascorbate peroxidase and glutathione reductase, were stimulated and antioxidants (ascorbic acid and glutathione) were maintained at high concentrations. These results indicate that tetraploid plants possess a stronger antioxidant defense system and increased heat tolerance.</abstract><cop>Munich</cop><pub>Elsevier GmbH</pub><pmid>19692145</pmid><doi>10.1016/j.jplph.2009.07.006</doi><tpages>7</tpages></addata></record> |
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| subjects | antioxidant activity Antioxidant system Antioxidants - metabolism Ascorbate Peroxidases ascorbic acid Ascorbic Acid - metabolism autopolyploidy Biological and medical sciences Catalase - metabolism Dioscorea Dioscorea - genetics Dioscorea - metabolism Dioscorea zingiberensis diploidy enzyme activity Fundamental and applied biological sciences. Psychology glutathione Glutathione - metabolism Glutathione Reductase - metabolism heat stress heat tolerance High-temperature stress Hot Temperature - adverse effects hydrogen peroxide Hydrogen Peroxide - metabolism malondialdehyde Malondialdehyde - metabolism Peroxidase - metabolism Peroxidases - metabolism physiological response Plant physiology and development plant response plant stress Polyploidy relative electrolyte leakage superoxide anion Superoxide Dismutase - metabolism Tetraploid tetraploidy |
| title | Tetraploidization of diploid Dioscorea results in activation of the antioxidant defense system and increased heat tolerance |
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