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عنوان URL للمقالة


رقم المقالة : 539026 زيارة : 67 الصفحة: 61 - 70

10.22034/aej.2018.539026

نوع المخطوط: ابحاث

نقش کرم خاکی در پالایش زیستی فلزات سنگین سرب و کادمیوم در ذرت

الموضوعات : بوم شناسی گیاهان زراعی

علی افتخاری 1 (گروه زراعت، واحد چالوس، دانشگاه آزاد اسلامی، چالوس، ایران)
مرتضی سام دلیری 2 (گروه زراعت، واحد چالوس، دانشگاه آزاد اسلامی، چالوس، ایران)
حمیدرضا مبصر 3 (گروه زراعت، واحد قائمشهر، دانشگاه آزاد اسلامی، قائمشهر، ایران)
امیرحسین شیرانی‌راد 4 (بخش دانه‌های روغنی، مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، کرج، ایران)
علیرضا ولدآبادی 5 (گروه زراعت، واحد تاکستان، دانشگاه آزاد اسلامی، تاکستان، ایران)

تاريخ الإرسال : 21 الأربعاء , شعبان, 1438 تاريخ التأكيد : 18 الجمعة , ربيع الثاني, 1439 تاريخ الإصدار : 04 الأحد , جمادى الأولى, 1439

الکلمات المفتاحية:  آلودگی زیست‌محیطی,  سمیت فلزات سنگین,  شاخص تحمل,  گیاه‌پالایی,

ملخص المقالة :

به‌منظور بررسی نقش کرم خاکی بر پالایش زیستی فلزات سنگین سرب و کادمیوم و تغییرات روند جذب آن ها در ذرت، آزمایش گلدانی به‌صورت فاکتوریل در قالب طرح پایه کاملاً تصادفی با سه تکرار در سال 1390 اجرا شد. در این آزمایش، در گلدان های تیمار 20 نخ کرم خاکی همراه با سطوح 0، 150 و 300 میلی‌گرم در کیلوگرم خاک از سرب و کادمیوم استفاده شد. میزان تجمع سرب و کادمیوم در دانه با افزایش سطوح آلودگی خاک به سرب و کادمیوم افزایش یافت. فلز سرب بیشترین میزان انباشتگی را در ریشه نشان داد. در حالی که تجمع کادمیوم در ریشه 63% کمتر بود. همچنین، افزایش 14% شاخص تحمل در گیاه با حضور کرم خاکی مشاهده شد که علت آن جذب سهم بالایی از سرب و کادمیوم بود. شاخص تحمل گیاه در مقابل سرب بالاتر از کادمیوم بود که ناشی از نسبت انتقال کمتر سرب به اندام هوایی است. با افزایش سطوح فلزات سرب و کادمیوم تعداد کرم خاکی کاهش، تجمع این عناصر در کرم خاکی افزایش یافت که بیان کننده موفقیت کرم خاکی در پالایش زیستی فلزات سنگین است. به علاوه، سطوح بالاتری از سرب نسبت به کادمیوم در کرم خاکی انباشته شد. بنابراین، استفاده از کرم خاکی در زیست‌پالایی در خاک های آلوده به فلزات سنگین پیشنهاد می‌شود.

المصادر:


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_||_

  1. Avila GG, Gaete HH, Sauve SS, Neaman AA (2009) Organic matter reduces copper toxicity for the earthworm Eisenia fetida in soils from mining areas in Central Chile 85 p.
    2.
  2. Darling CTR, Thomas VG (2005) Lead bioaccumulation in earthworms, Lumbricus terrestris, from exposure to lead compounds of differing solubility. Science of the Total Environment 346(1): 70-80.
    3.
  3. Farooqi ZR, Shafiq D (2009) Toxic effects of lead and cadmium on germination and seeding growth of Albizia lebbeck (L.) Benth. Pakistan Journal of Botany 41(1): 27-33.
    4.
  4. Garcia M, Römbke J, de Brito MT, Scheffczyk A (2008) Effects of three pesticides on the avoidance behavior of earthworms in laboratory tests performed under temperate and tropical conditions. Environmental Pollution 153(2): 450-456.
    5.
  5. Irizar A, Rodriguez MP, Izquierdo A, Cancio I, Marigomez I, Soto M (2015) Effects of soil organic matter content on cadmium toxicity in Eisenia fetida: Implications for the use of biomarkers and standard toxicity tests. Archives of Environmental Contamination and Toxicology 68(1): 181-192.
    6.
  6. Jamshidi Z, Golchin A, Pari-Zanganeh A (2013) The effect of different levels of chromium and exposure time on growth parameters of earthworms. Journal of Kashan University of Medical Sciences 16(7): 625-626. [in Persian with English abstract]
    7.
  7. Khan NA, Ahmad I, Singh S, Nazar R (2006) Variation in growth, photosynthesis and yield of five wheat cultivars exposed to cadmium stress. World Journal of Agricultural Sciences 2(2): 223-226
    8.
  8. Liu L, Chen H, Cai P, Liang W, Huang Q (2009) Immobilization and phyto-toxicity of Cd in contaminated soil amended with chicken manure compost. Journal of Hazardous Materials 163: 563-567.
    9.
  9. Mahdavi SM, Sarfam M, Choab A (2011) Investigation effect of vermin-compost, poultry manure and cow manure on soil cadmium transition. Proceedings of the 1st National Conference of Strategic Achievements in Sustainable Agriculture. Khouzestan Payam Nour University. 1-9 pp. [in Persian with English Abstract]
    10.
  10. Manteghi N (1986) Methods description and experimental investigation on soil and water samples. Soil and Water Research Institute 168: 175 pp. [in Pesian]
    11.
  11. Marchiol L, Assolari S, Sacco P, Zerabi G (2004) Phytoextraction of heavy metals by canola (Brassica napus) and raddish (Raphanus sativus) grown on multicontaminated soil. Environmental Pollution 132(1): 21-24.
    12.
  12. Mertens J, Vervaeke P, Meers E, Tack FM (2006) Seasonal changes of metals in willow (Salix sp.) stands for phytoremdiation on dredged sediment. Environmental Science Technology 40: 1962-1968.
    13.
  13. Naderi M, Danesh Shahraki AR (2011) Phyto-remediation: towards to improved environment safety. Proceedings of the First National Conference of Strategic Achievement to Sustainable Aagriculture. Khouzestan Payam Nour University. 1-9 pp. [in Persian with English abstract]
    14.
  14. Khan AG, Kuek C, Chaudhry TM, Khoo CS, Hayes WJ  (2000) Role of Plants, mycorrhizae and phytochelators in heavy metal contaminated lend remediation. Chemosphere 41: 197-207.
    15.
  15. Pinthus M J (1973) Loading in Wheat, barley and oats: the phenomenon, its causes, and preventive measures. Advance in Agronomy 25: 209-263.
    16.
  16. Todd LL, George E. Taylor Jr., Mae SG, George CJF (1998) Mercury and plants in contaminated soil: 1: Uptake, partitioning, and emission to the atmosphere. Environmental Toxicology and Chemistry 17: 2063–2071.
    17.
  17. Soltani M (2009) Research on the effectiveness of Trichoderma in improving soil fertility, disease control and reduction of chemical fertilizers and pesticides application inclusion in cultivation of leafy vegetables in pilon-Smitse phyto-remediation. Plant Biology 56:1539.
    18.
  18. Kelly JJ, Häggblom MM, Tate RL (1998) Effects of heavy metal concentration and remediation on soil microbial on soil microbial communities in the vicinity of a zinc smelter. Journal of Environmental Quality 27: 609-617.
    19.
  19. Wang G, Su MY, Chen YH, Lin FF, Luo D, Gao SF (2006) Transfer characteristics of cadmium and lead from soil to the edible parts of six vegetable species in south eastern China. Environmental Pollution 144: 127-135.
    20.
  20. Yang XE, Long Ye HB, Calvert D, Sfoffella PJ (2004) Cadmium tolerance and hyperaccumulation in a new Zn- hyperaccumulating plant species. Plant and Soil 259: 181-189.
    21.

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