The Effects of Iron Deficiency on Lead Accumulation in Ailanthus altissima (Mill.) Swingle Seedlings
Нема приказа
Аутори
Djunisijevic-Bojović, Danijela MDukic, Matilda
Maksimović, Vuk
Skocajic, Dragana
Surucic, Ljiljana T
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Understanding the effects of root Fe deficiency on the uptake and translocation of toxic metals can be important for improving the phytoremediation strategies of polluted soils. The present study investigated how Fe nutritional status affects the uptake and root-to-shoot-translocation of Pb in hydroponically grown seedlings of Ailanthus altissima (Mill.) Swingle. The interactions of Fe deficiency and Pb were assessed by measuring the root Fe(III) reductase activity, carboxylic acids concentration in root exudates, root and shoot biomass, and accumulation of Pb and other metals (Fe, Zn, Mn, and Cu) in roots and leaves of Fe-sufficient (+Fe) and Fe-deficient (-Fe) A. altissima plants. The results indicate that Fe deficiency induced 18-fold higher Fe(III) reductase activity in roots compared with +Fe plants, which was followed by increased root exudation of citric acid (28.2 +/- 1.39 in +Fe and 498 +/- 256.4 mu mol g DW-1 2 h(-1) in -Fe plants). Iron deficiency also induces a significant ...decrease of root and shoot dry weight compared with the control +Fe plants, whereas 2-wk Pb (20 mu M) treatment did not influence root and shoot growth. Iron-sufficient plants accumulated more Pb (56.8 +/- 17.29 mu g g(-1)) in leaves than -Fe plants (21.5 +/- 8.10 mu g g(-1)). Two weeks of exposure to Pb significantly decreased Fe(III) reductase activity and accumulation of Fe, Zn, and Mn in the roots of -Fe plants. It is hypothesized that 2 wk of root exposure to Pb blocks functioning of a specific Fe transport system activated under Fe deficiency.
Кључне речи:
iron / Ailanthus altissima / organic acids / rhisosphere / root exudatesИзвор:
Journal of Environmental Quality, 2012, 41, 5, 1517-1524Издавач:
- Wiley, Hoboken
Финансирање / пројекти:
- Истраживање климатских промена и њиховог утицаја на животну средину - праћење утицаја, адаптација и ублажавање (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43007)
- Минерални стрес и адаптације биљака на маргиналним пољопривредним земљиштима (RS-MESTD-Basic Research (BR or ON)-173028)
- Нове технологије за мониторинг и заштиту животног окружења од штетних хемијских супстанци и радијационог оптерећења (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
DOI: 10.2134/jeq2011.0450
ISSN: 0047-2425
PubMed: 23099943
WoS: 000308931700018
Scopus: 2-s2.0-84869473309
Институција/група
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Djunisijevic-Bojović, Danijela M AU - Dukic, Matilda AU - Maksimović, Vuk AU - Skocajic, Dragana AU - Surucic, Ljiljana T PY - 2012 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/541 AB - Understanding the effects of root Fe deficiency on the uptake and translocation of toxic metals can be important for improving the phytoremediation strategies of polluted soils. The present study investigated how Fe nutritional status affects the uptake and root-to-shoot-translocation of Pb in hydroponically grown seedlings of Ailanthus altissima (Mill.) Swingle. The interactions of Fe deficiency and Pb were assessed by measuring the root Fe(III) reductase activity, carboxylic acids concentration in root exudates, root and shoot biomass, and accumulation of Pb and other metals (Fe, Zn, Mn, and Cu) in roots and leaves of Fe-sufficient (+Fe) and Fe-deficient (-Fe) A. altissima plants. The results indicate that Fe deficiency induced 18-fold higher Fe(III) reductase activity in roots compared with +Fe plants, which was followed by increased root exudation of citric acid (28.2 +/- 1.39 in +Fe and 498 +/- 256.4 mu mol g DW-1 2 h(-1) in -Fe plants). Iron deficiency also induces a significant decrease of root and shoot dry weight compared with the control +Fe plants, whereas 2-wk Pb (20 mu M) treatment did not influence root and shoot growth. Iron-sufficient plants accumulated more Pb (56.8 +/- 17.29 mu g g(-1)) in leaves than -Fe plants (21.5 +/- 8.10 mu g g(-1)). Two weeks of exposure to Pb significantly decreased Fe(III) reductase activity and accumulation of Fe, Zn, and Mn in the roots of -Fe plants. It is hypothesized that 2 wk of root exposure to Pb blocks functioning of a specific Fe transport system activated under Fe deficiency. PB - Wiley, Hoboken T2 - Journal of Environmental Quality T1 - The Effects of Iron Deficiency on Lead Accumulation in Ailanthus altissima (Mill.) Swingle Seedlings EP - 1524 IS - 5 SP - 1517 VL - 41 DO - 10.2134/jeq2011.0450 ER -
@article{ author = "Djunisijevic-Bojović, Danijela M and Dukic, Matilda and Maksimović, Vuk and Skocajic, Dragana and Surucic, Ljiljana T", year = "2012", abstract = "Understanding the effects of root Fe deficiency on the uptake and translocation of toxic metals can be important for improving the phytoremediation strategies of polluted soils. The present study investigated how Fe nutritional status affects the uptake and root-to-shoot-translocation of Pb in hydroponically grown seedlings of Ailanthus altissima (Mill.) Swingle. The interactions of Fe deficiency and Pb were assessed by measuring the root Fe(III) reductase activity, carboxylic acids concentration in root exudates, root and shoot biomass, and accumulation of Pb and other metals (Fe, Zn, Mn, and Cu) in roots and leaves of Fe-sufficient (+Fe) and Fe-deficient (-Fe) A. altissima plants. The results indicate that Fe deficiency induced 18-fold higher Fe(III) reductase activity in roots compared with +Fe plants, which was followed by increased root exudation of citric acid (28.2 +/- 1.39 in +Fe and 498 +/- 256.4 mu mol g DW-1 2 h(-1) in -Fe plants). Iron deficiency also induces a significant decrease of root and shoot dry weight compared with the control +Fe plants, whereas 2-wk Pb (20 mu M) treatment did not influence root and shoot growth. Iron-sufficient plants accumulated more Pb (56.8 +/- 17.29 mu g g(-1)) in leaves than -Fe plants (21.5 +/- 8.10 mu g g(-1)). Two weeks of exposure to Pb significantly decreased Fe(III) reductase activity and accumulation of Fe, Zn, and Mn in the roots of -Fe plants. It is hypothesized that 2 wk of root exposure to Pb blocks functioning of a specific Fe transport system activated under Fe deficiency.", publisher = "Wiley, Hoboken", journal = "Journal of Environmental Quality", title = "The Effects of Iron Deficiency on Lead Accumulation in Ailanthus altissima (Mill.) Swingle Seedlings", pages = "1524-1517", number = "5", volume = "41", doi = "10.2134/jeq2011.0450" }
Djunisijevic-Bojović, D. M., Dukic, M., Maksimović, V., Skocajic, D.,& Surucic, L. T.. (2012). The Effects of Iron Deficiency on Lead Accumulation in Ailanthus altissima (Mill.) Swingle Seedlings. in Journal of Environmental Quality Wiley, Hoboken., 41(5), 1517-1524. https://doi.org/10.2134/jeq2011.0450
Djunisijevic-Bojović DM, Dukic M, Maksimović V, Skocajic D, Surucic LT. The Effects of Iron Deficiency on Lead Accumulation in Ailanthus altissima (Mill.) Swingle Seedlings. in Journal of Environmental Quality. 2012;41(5):1517-1524. doi:10.2134/jeq2011.0450 .
Djunisijevic-Bojović, Danijela M, Dukic, Matilda, Maksimović, Vuk, Skocajic, Dragana, Surucic, Ljiljana T, "The Effects of Iron Deficiency on Lead Accumulation in Ailanthus altissima (Mill.) Swingle Seedlings" in Journal of Environmental Quality, 41, no. 5 (2012):1517-1524, https://doi.org/10.2134/jeq2011.0450 . .