Tags

Type your tag names separated by a space and hit enter

Genotype variations in cadmium and lead accumulations of leafy lettuce (Lactuca sativa L.) and screening for pollution-safe cultivars for food safety.
Environ Sci Process Impacts. 2013 Jun; 15(6):1245-55.ES

Abstract

Heavy-metals in polluted soils can accumulate in plants and threaten crop safety. To evaluate the risk of heavy-metal pollution in leafy lettuce (Lactuca sativa L.), two pot experiments were conducted to investigate Cd and Pb accumulation and transfer potential in 28 cultivars of lettuce and to screen for low-Cd and low-Pb accumulative cultivars. In the three treatments, 5.2-fold, 4.8-fold and 4.8-fold differences in the shoot Cd concentration were observed between the cultivars with the highest and the lowest Cd concentrations, respectively. This genotype variation was sufficiently large to identify low-Cd accumulative genotypes to reduce Cd contamination in food. Cadmium accumulation in the low-Cd accumulative genotypes was significantly positively correlated with Pb accumulation. At the cultivar level, Cd and Pb accumulation in lettuce was stable and genotype-dependent. High Pb soil levels did not affect shoot Cd accumulation in lettuce. Lettuce was concluded to be at high risk for Cd pollution and low risk for Pb pollution. Among the tested cultivars, cvs. SJGT, YLGC, N518, and KR17 had the lowest Cd and Pb accumulation abilities in shoots and are thus important parental material for breeding pollution-safe cultivars to minimize Cd and Pb accumulation.

Authors+Show Affiliations

State Key Laboratory for Biocontrol, and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23665926

Citation

Zhang, Kun, et al. "Genotype Variations in Cadmium and Lead Accumulations of Leafy Lettuce (Lactuca Sativa L.) and Screening for Pollution-safe Cultivars for Food Safety." Environmental Science. Processes & Impacts, vol. 15, no. 6, 2013, pp. 1245-55.
Zhang K, Yuan J, Kong W, et al. Genotype variations in cadmium and lead accumulations of leafy lettuce (Lactuca sativa L.) and screening for pollution-safe cultivars for food safety. Environ Sci Process Impacts. 2013;15(6):1245-55.
Zhang, K., Yuan, J., Kong, W., & Yang, Z. (2013). Genotype variations in cadmium and lead accumulations of leafy lettuce (Lactuca sativa L.) and screening for pollution-safe cultivars for food safety. Environmental Science. Processes & Impacts, 15(6), 1245-55. https://doi.org/10.1039/c3em00158j
Zhang K, et al. Genotype Variations in Cadmium and Lead Accumulations of Leafy Lettuce (Lactuca Sativa L.) and Screening for Pollution-safe Cultivars for Food Safety. Environ Sci Process Impacts. 2013;15(6):1245-55. PubMed PMID: 23665926.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Genotype variations in cadmium and lead accumulations of leafy lettuce (Lactuca sativa L.) and screening for pollution-safe cultivars for food safety. AU - Zhang,Kun, AU - Yuan,Jiangang, AU - Kong,Wei, AU - Yang,Zhongyi, PY - 2013/5/14/entrez PY - 2013/5/15/pubmed PY - 2013/12/18/medline SP - 1245 EP - 55 JF - Environmental science. Processes & impacts JO - Environ Sci Process Impacts VL - 15 IS - 6 N2 - Heavy-metals in polluted soils can accumulate in plants and threaten crop safety. To evaluate the risk of heavy-metal pollution in leafy lettuce (Lactuca sativa L.), two pot experiments were conducted to investigate Cd and Pb accumulation and transfer potential in 28 cultivars of lettuce and to screen for low-Cd and low-Pb accumulative cultivars. In the three treatments, 5.2-fold, 4.8-fold and 4.8-fold differences in the shoot Cd concentration were observed between the cultivars with the highest and the lowest Cd concentrations, respectively. This genotype variation was sufficiently large to identify low-Cd accumulative genotypes to reduce Cd contamination in food. Cadmium accumulation in the low-Cd accumulative genotypes was significantly positively correlated with Pb accumulation. At the cultivar level, Cd and Pb accumulation in lettuce was stable and genotype-dependent. High Pb soil levels did not affect shoot Cd accumulation in lettuce. Lettuce was concluded to be at high risk for Cd pollution and low risk for Pb pollution. Among the tested cultivars, cvs. SJGT, YLGC, N518, and KR17 had the lowest Cd and Pb accumulation abilities in shoots and are thus important parental material for breeding pollution-safe cultivars to minimize Cd and Pb accumulation. SN - 2050-7895 UR - https://www.unboundmedicine.com/medline/citation/23665926/Genotype_variations_in_cadmium_and_lead_accumulations_of_leafy_lettuce__Lactuca_sativa_L___and_screening_for_pollution_safe_cultivars_for_food_safety_ L2 - https://doi.org/10.1039/c3em00158j DB - PRIME DP - Unbound Medicine ER -