کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8843878 | 1616289 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Citric acid and EDTA on the growth, photosynthetic properties and heavy metal accumulation of Iris halophila Pall. cultivated in Pb mine tailings
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
علوم زیست محیطی (عمومی)
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چکیده انگلیسی
The effect of citric acid (CA) and EDTA on the growth, root and leaf anatomical structure, photosynthetic properties and lead (Pb) accumulation in Iris halophila seedlings cultivated in Pb mine tailings for 30 days were studied. Results showed that the dry weights of above-ground parts and underground parts of I. halophila under the treatments of 2 mmol kgâ1 CA increased significantly and the tolerant index (IT) value treated with 2 mmol kgâ1 EDTA was 19% lower than the control. The contents of photosynthetic pigments increased and decreased significantly with 0.5 mmol kgâ1 CA and 2.0 mmol kgâ1 EDTA, respectively. The leaf anatomic structure was negatively impacted by 2.0 mmol kgâ1 EDTA. Treatment of 2 mmol kgâ1 CA enhanced Cd and Zn accumulation in the above-ground parts, and Pb, Cu, Cd and Zn accumulation in the underground parts. EDTA treatments promoted Pb and Cd accumulation in both parts of I. halophila. The results indicated that the addition of organic acids could promote Pb and Cd accumulation and I. halophila could serve as pioneer species to be used in remediation of Pb mine tailings to improve the harsh environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Biodeterioration & Biodegradation - Volume 128, March 2018, Pages 15-21
Journal: International Biodeterioration & Biodegradation - Volume 128, March 2018, Pages 15-21
نویسندگان
Yulin Han, Lili Zhang, Jiguang Gu, Jiuzhou Zhao, Jiajia Fu,