Academic Journal
Cadmium exclusion a key factor in differential Cd-resistance in Thlaspi arvense ecotypes
| العنوان: | Cadmium exclusion a key factor in differential Cd-resistance in Thlaspi arvense ecotypes |
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| المؤلفون: | S. R. Martin, M. Llugany, J. Barceló, C. Poschenrieder |
| المصدر: | Biologia Plantarum, Vol 56, Iss 4, Pp 729-734 (2012) |
| بيانات النشر: | Institute of Experimental Botany of the Czech Academy of Sciences |
| سنة النشر: | 2012 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | ascorbate peroxidase, catalase, iron, superoxide dismutase, zinc, Biology (General), QH301-705.5, Plant ecology, QK900-989 |
| الوصف: | Differences in Cd accumulation and Cd tolerance between Thlaspi arvense ecotype Aigues Vives (AV) from a commercial grower in South France and ecotype Jena collected in the polluted urban area of Jena (Germany) were reported here. Ecotype Jena exhibited considerable Cd-tolerance. Shoot and root masses were unaffected and root elongation was even enhanced by exposure to 50 μM Cd. In contrast, growth of ecotype AV was severely affected by this Cd treatment. Ecotype Jena was much more efficient in excluding Cd from both roots and shoots than ecotype AV. Despite the efficient restriction of Cd transport from roots to shoots in Jena, this ecotype maintained high root to shoot transport of Zn and Fe under Cd exposure. Cd supply strongly decreased the activities of antioxidant enzymes in AV, while in the Cd resistant Jena these activities either remained unaffected (SOD, APX) or were increased (CAT) by Cd supply. In conclusion, naturally selected Cd-tolerance in Thlaspi arvense is due to efficient Cd exclusion. The mechanisms underlying exclusion of Cd from the shoots seem Cd-specific yet they did not affect the homeostasis of Fe and Zn in the shoots. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1573-8264 |
| Relation: | https://bp.ueb.cas.cz/artkey/bpl-201204-0019_Cadmium-exclusion-a-key-factor-in-differential-Cd-resistance-in-Thlaspi-arvense-ecotypes.php; https://doaj.org/toc/1573-8264; https://doaj.org/article/3344e8f280ea41abb8749510953c6dec |
| DOI: | 10.1007/s10535-012-0056-8 |
| الاتاحة: | https://doi.org/10.1007/s10535-012-0056-8 https://doaj.org/article/3344e8f280ea41abb8749510953c6dec |
| رقم الانضمام: | edsbas.67B99FC7 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 15738264 |
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| DOI: | 10.1007/s10535-012-0056-8 |