Copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in Antarctic Colobanthus quitensis (Kunth) Bartl.
Abstract Background: In field, C. quitensis Is subjected to many abiotic extreme environmental conditions, such as low temperatures, high UV-B, salinity and reduced water potentials, but not metal or metalloid high concentrations in soil, however, other members of Caryophyllaceae family have tolera...
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| Lenguaje: | English |
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Sociedad de Biología de Chile
2018
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| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602018000100238 |
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oai:scielo:S0716-976020180001002382018-12-05Copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in Antarctic Colobanthus quitensis (Kunth) Bartl.Contreras,Rodrigo A.Pizarro,MarisolKöhler,HansSáez,Claudio A.Zúñiga,Gustavo E. C. quitensis Metal Antioxidants Phytochelatins Sugars Antarctica Abstract Background: In field, C. quitensis Is subjected to many abiotic extreme environmental conditions, such as low temperatures, high UV-B, salinity and reduced water potentials, but not metal or metalloid high concentrations in soil, however, other members of Caryophyllaceae family have tolerance to high concentrations of metals, this is the case of Silene genre. In this work, we hypothesize that C. quitensis have the same mechanisms of Silene to tolerate metals, involving accumulation and induction of antioxidant systems, sugar accumulation and the induction of thiols such as phytochelatins to tolerate. Results: The results showing an effective antioxidant defensive machinery involving non-enzymatic antioxidants such as phenolics, GSH and ascorbic acid, in another hand, GSH-related oligomers (phytochelatins) and sugars was induced as a defensive mechanism. Conclusions: Colobanthus quitensis exhibits certain mechanisms to tolerate copper in vitro demonstrating its plasticity to tolerate several abiotic stress conditions.info:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.51 20182018-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602018000100238en10.1186/s40659-018-0197-0 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
C. quitensis Metal Antioxidants Phytochelatins Sugars Antarctica |
| spellingShingle |
C. quitensis Metal Antioxidants Phytochelatins Sugars Antarctica Contreras,Rodrigo A. Pizarro,Marisol Köhler,Hans Sáez,Claudio A. Zúñiga,Gustavo E. Copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in Antarctic Colobanthus quitensis (Kunth) Bartl. |
| description |
Abstract Background: In field, C. quitensis Is subjected to many abiotic extreme environmental conditions, such as low temperatures, high UV-B, salinity and reduced water potentials, but not metal or metalloid high concentrations in soil, however, other members of Caryophyllaceae family have tolerance to high concentrations of metals, this is the case of Silene genre. In this work, we hypothesize that C. quitensis have the same mechanisms of Silene to tolerate metals, involving accumulation and induction of antioxidant systems, sugar accumulation and the induction of thiols such as phytochelatins to tolerate. Results: The results showing an effective antioxidant defensive machinery involving non-enzymatic antioxidants such as phenolics, GSH and ascorbic acid, in another hand, GSH-related oligomers (phytochelatins) and sugars was induced as a defensive mechanism. Conclusions: Colobanthus quitensis exhibits certain mechanisms to tolerate copper in vitro demonstrating its plasticity to tolerate several abiotic stress conditions. |
| author |
Contreras,Rodrigo A. Pizarro,Marisol Köhler,Hans Sáez,Claudio A. Zúñiga,Gustavo E. |
| author_facet |
Contreras,Rodrigo A. Pizarro,Marisol Köhler,Hans Sáez,Claudio A. Zúñiga,Gustavo E. |
| author_sort |
Contreras,Rodrigo A. |
| title |
Copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in Antarctic Colobanthus quitensis (Kunth) Bartl. |
| title_short |
Copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in Antarctic Colobanthus quitensis (Kunth) Bartl. |
| title_full |
Copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in Antarctic Colobanthus quitensis (Kunth) Bartl. |
| title_fullStr |
Copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in Antarctic Colobanthus quitensis (Kunth) Bartl. |
| title_full_unstemmed |
Copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in Antarctic Colobanthus quitensis (Kunth) Bartl. |
| title_sort |
copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in antarctic colobanthus quitensis (kunth) bartl. |
| publisher |
Sociedad de Biología de Chile |
| publishDate |
2018 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602018000100238 |
| work_keys_str_mv |
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| _version_ |
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