Heavy metals toxicity, health risk index and plant survival strategies in wild vegetables of Islamabad, Pakistan | [Abstract Book on Second International Conference on Recent Approaches in Plant Sciences (RAPS-23) 4-5 May 2023 • 2023]

Author(s):

1. Sadaf Aftab Choudhary: Department of Botany, University of Poonch Rawalakot,12350, AJK, Pakistan

2. Khawaja S. Ahmad: Department of Botany, University of Poonch Rawalakot, 12350, AJK, Pakistan

3. Ansar Mehmood: Department of Botany, University of Poonch Rawalakot, 12350, AJK, Pakistan

4. Mazhar Iqbal: Department of Environmental Sciences, Faculty of Biological Sciences, Quaidi-Azam University, Islamabad 45320, Pakistan

Abstract:

Wild vegetables are best nutrition meal for human and other organisms but contamination of heavy metals in them cause many health risk problems. The present study was conducted to determine heavy metals accumulation in wild vegetables of Islamabad and leaf traits response to metal toxicity. Result showed that vegetables were rich in nutrition value. Although moisture, fat, ash and fiber content were not present in enough amount but carbohydrate, protein was higher in all wild vegetables. Total energy was maximum 409.39 in Solanum nigrum. Health risk index was higher in all vegetables due to Pb and Cd. THQ values were safe limit for Zn, Cu and Cd. However, it was higher for Pb then standard limit 1.0. Translocation of Zn from soil to vegetables was 1.84 which was higher than other metals. In species, Cu show strong negative correlation with Zn (0.073) while show strong positive correlation with Pb (0.613). In soil, Cd show highly positive correlation with Pb (0.941) while Pb showed highly negative correlation with Zn (-0.053). Cluster heatmap among species and their functional trait showed that leaf mass area and dry mater were clustered togethere while stomatal pore index, cell tensio ratio and stomatal thickness were cluster together showing close associations. Leaf mass area was closey associated with Taraxacum officinale and negatively associated with Rumex dentatus. Stomatal density and stomatal pore index had strong positive associations with Rumex dentatus while cell tense ratio had strong negative association with Plantago lanceolata.PCA biplot Dim1 accounted 49% variation while Dim2 accounted 33.3% variation showed strong association between LDM and Zn in Chenopodium album, Plantago lanceolata and Solanum nigrum. The study concluded that wild vegetables are best nutrition food and energy but the presence of unsafe amount of Cd and Pb in vegetables caused much health risk for human.

Page(s): 97-97

DOI: DOI not available

Published: Journal: Abstract Book on Second International Conference on Recent Approaches in Plant Sciences (RAPS-23) 4-5 May 2023 , Volume: 0, Issue: 0, Year: 2023

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