• Início
  • Resultados da busca
  • Citric acid improves lead (pb) phytoextraction in brassica napus L. by mitigating pb-induced morphological and biochemical damages.

Citric acid improves lead (pb) phytoextraction in brassica napus L. by mitigating pb-induced morphological and biochemical damages.

Ecotoxicology and environmental safety (2014-08-29)
Muhammad Bilal Shakoor, Shafaqat Ali, Amjad Hameed, Mujahid Farid, Sabir Hussain, Tahira Yasmeen, Ullah Najeeb, Saima Aslam Bharwana, Ghulam Hasan Abbasi
RESUMO

Phytoextraction is an environmentally friendly and a cost-effective strategy for remediation of heavy metal contaminated soils. However, lower bioavailability of some of the metals in polluted environments e.g. lead (Pb) is a major constraint of phytoextraction process that could be overcome by applying organic chelators. We conducted a glasshouse experiment to evaluate the role of citric acid (CA) in enhancing Pb phytoextraction. Brassica napus L. seedlings were grown in hydroponic media and exposed to various treatments of Pb (50 and 100 μM) as alone or in combination with CA (2.5mM) for six weeks. Pb-induced damage in B. napus toxicity was evident from elevated levels of malondialdehyde (MDA) and H2O2 that significantly inhibited plant growth, biomass accumulation, leaf chlorophyll contents and gas exchange parameters. Alternatively, CA application to Pb-stressed B. napus plants arrested lipid membrane damage by limiting MDA and H2O2 production and by improving antioxidant enzyme activities. In addition, CA significantly increased the Pb accumulation in B. napus plants. The study concludes that CA has a potential to improve Pb phytoextraction without damaging plant growth.

MATERIAIS
Número do produto
Marca
Descrição do produto

Sigma-Aldrich
Hydrogen peroxide solution, 30 % (w/w) in H2O, contains stabilizer
Sigma-Aldrich
Citric acid, ACS reagent, ≥99.5%
Sigma-Aldrich
Citric acid, 99%
Millipore
Hydrogen peroxide solution, 3%, suitable for microbiology
Sigma-Aldrich
Hydrogen peroxide solution, contains ~200 ppm acetanilide as stabilizer, 3 wt. % in H2O
Sigma-Aldrich
Citric acid, anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99.5%
Sigma-Aldrich
Citric acid, meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)
Supelco
Citric acid, Anhydrous, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
Citric acid, anhydrous, suitable for cell culture, suitable for plant cell culture
Sigma-Aldrich
Hydrogen peroxide solution, contains inhibitor, 30 wt. % in H2O, meets USP testing specifications
Sigma-Aldrich
Citric acid, BioUltra, anhydrous, ≥99.5% (T)
Sigma-Aldrich
Lead, powder, −100 mesh, 99.95% trace metals basis
Sigma-Aldrich
Citric acid, ≥99.5%, FCC, FG
Supelco
Citric acid, analytical standard
Supelco
Citric acid, certified reference material, TraceCERT®
Sigma-Aldrich
Lead, powder, −325 mesh, ≥99% trace metals basis
Citric acid, anhydrous, European Pharmacopoeia (EP) Reference Standard
Sigma-Aldrich
Lead, wire, diam. 1.0 mm, 99.99% trace metals basis
Sigma-Aldrich
Lead, shot, 1-3 mm, 99.995% trace metals basis
Sigma-Aldrich
Lead, shot, <2 mm, 99.9% trace metals basis
Lead, foil, 150x150mm, thickness 0.5mm, as rolled, 99.95%
Lead, foil, 50x50mm, thickness 0.25mm, as rolled, 99.95%
Lead, foil, 50x50mm, thickness 0.1mm, as rolled, 99.95%
Lead, wire reel, 10m, diameter 0.25mm, as drawn, 99.95%
Lead, wire reel, 2m, diameter 0.125mm, as drawn, 99.5%
Lead, foil, 100x100mm, thickness 3.0mm, as rolled, 99.95%
Lead, foil, 100x100mm, thickness 3.0mm, as rolled, 99.99+%
Lead, foil, 100x100mm, thickness 6.0mm, as rolled, 99.99+%
Lead, foil, 150x150mm, thickness 0.125mm, as rolled, 99.95%
Lead, foil, 150x150mm, thickness 0.15mm, as rolled, 99.95%

Redes sociais

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

Merck

Pesquisa. Desenvolvimento. Produção.

Somos um fornecedor global líder para o setor de ciências biológicas, com soluções e serviços para pesquisa, desenvolvimento e produção de biotecnologia, além de produção e desenvolvimento de terapias farmacológicas com medicamentos.

© 2021 Merck KGaA, Darmstadt, Alemanha e/ou suas filiais. Todos os direitos reservados.

A reprodução não autorizada de quaisquer materiais deste site é estritamente proibida.