دورية أكاديمية
Oenothera biennis with strong copper toxicity resistance enriches trace copper in seeds under copper pollution soil
| العنوان: | Oenothera biennis with strong copper toxicity resistance enriches trace copper in seeds under copper pollution soil |
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| المؤلفون: | Jie Dong, Shuchang Yang, Zhiling Kou, Yunting Chen, Tao Yang, Peng Gao, Wuhua Zhang, Jinzhu Zhang, Daidi Che, Aoxue Wang |
| المصدر: | Ecotoxicology and Environmental Safety, Vol 277, Iss , Pp 116382- (2024) |
| بيانات النشر: | Elsevier, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Environmental pollution LCC:Environmental sciences |
| مصطلحات موضوعية: | Copper pollution, Oenothera biennis, Copper accumulation, Copper transport genes, Food safety, Evening primrose seed oil, Environmental pollution, TD172-193.5, Environmental sciences, GE1-350 |
| الوصف: | Excess copper (Cu) imparts negative effects on plant growth and productivity in soil. To develop the ability of O. biennis to govern pollution soil containing excessive Cu, we investigated seed germination, seedling growth, and seed yield. Furthermore, Cu content and the expression levels of Cu transport related genes in different tissues were measured under exogenous high concentration Cu. O. biennis seeds were sensitive to excess Cu, with an observed reduction in the germination rate, primary root length, fresh weight, and number of seeds germinated daily. Consecutive Cu stress did not cause fatal damage to evening primrose, yet it slowed down plant growth slightly by reducing the leaf water, chlorophyll, plant yield, and seed oil contents while increasing the soluble sugar, proline, malondialdehyde, and H2O2 contents. The Cu content in different organs of O. biennis was disrupted by excess Cu. In particular, the Cu content in O. biennis seeds and seed oil increased and subsequently decreased with the increase of exogenous Cu, reaching a peak under 600 mg·kg−1 consecutive Cu. Furthermore, the 4-month 900 mg·kg−1 Cu treatment did not induce the excessive accumulation of Cu in peels, seeds, and seed oil, maintaining the Cu content within the range required by the Chinese National Food Safety Standards. The treatment also resulted in an upregulation of Cu-uptake (ObCOPT5, ObZIP4, and ObYSL2) and vigorous efflux (ObHMA1) of transport genes, of which expression levels were significant positive correlation (p < 0.05) with the Cu content. Among all organs, the stem replaced the root as the organ exhibited the greatest ability to absorb and store Cu, and even the Cu transport genes could still function continuously in stem under excess Cu. This work identified a species that can tolerate high Cu content in soil while maintaining a high yield. Furthermore, the results revealed the enrichment of Cu to occur primarily in the O. biennis stem rather than the seeds and peel under excess Cu. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0147-6513 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S0147651324004585; https://doaj.org/toc/0147-6513 |
| DOI: | 10.1016/j.ecoenv.2024.116382 |
| URL الوصول: | https://doaj.org/article/4444171f44a645d084da0a3dc6c6270b |
| رقم الأكسشن: | edsdoj.4444171f44a645d084da0a3dc6c6270b |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 01476513 |
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| DOI: | 10.1016/j.ecoenv.2024.116382 |