Multivariate Analysis of Metal Levels in Paddy Soil, Rice Plants, and Rice Grains: A Case Study from Shakargarh, Pakistan

Tariq, Saadia R.; Rashid, Nabila

doi:10.1155/2013/539251

Cited by 30 publications

(19 citation statements)

References 43 publications

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“…TF from shoot to rice grains was in the following order: japonica < indica < hybrid indica. However, TF of lead from root to shoot was non-significant also reported by Tariq and Rashid (2013) and Sharma and Dubey (2005). However, Burzynski and Grabowski (1984) concluded that decline in nitrate uptake might be due to moisture stress caused by Pb in the soil.…”

Section: Plant-nutrient Relationshipmentioning

confidence: 71%

Lead toxicity in rice: effects, mechanisms, and mitigation strategies—a mini review

Ashraf

Kanu

et al. 2015

Environ Sci Pollut Res

213

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Lead (Pb) is a major environmental pollutant that affects plant morpho-physiological and biochemical attributes. Its higher levels in the environment are not only toxic to human beings but also harmful for plants and soil microbes. We have reviewed the uptake, translocation, and accumulation mechanisms of Pb and its toxic effects on germination, growth, yield, nutrient relation, photosynthesis, respiration, oxidative damage, and antioxidant defense system of rice. Lead toxicity hampers rice germination, root/shoot length, growth, and final yield. It reduces nutrient uptake through roots, disrupts chloroplastic ultrastructure and cell membrane permeability, induces alterations in leaves respiratory activities, produces reactive oxygen species (ROS), and triggers some enzyme and non-enzymatic antioxidants (as defense to oxidative damage). In the end, biochar amendments and phytoremediation technologies have been proposed as soil remediation approaches for Pb tainted soils.

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Section: Plant-nutrient Relationshipmentioning

confidence: 71%

Lead toxicity in rice: effects, mechanisms, and mitigation strategies—a mini review

Ashraf

Kanu

et al. 2015

Environ Sci Pollut Res

213

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“…Cluster analysis has proved to be a milestone toward the source apportionment studies of various pollutants like metals and pesticides in the soil and other media [ 47 , 48 ]. In this analysis ( Figure 3 ), linkage distance is used as the measure of degree of closeness and hence relation among the various parameters [ 49 ].…”

Section: Resultsmentioning

confidence: 99%

Distribution of Heavy Metals in the Soils Associated with the Commonly Used Pesticides in Cotton Fields

2016

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Agricultural soils contain both heavy metals and pesticides originating from various agricultural practices. It is quite important to study the relationships between these two classes of compounds. To accomplish this, 52 soil samples were collected from cotton fields and analyzed for their metal contents (Ni, Cu, Co, Pb, Cr, and Cd) and levels of most commonly used pesticides (imidacloprid, acetamiprid, and emamectin). FAAS was used for metal estimation and the pesticides were determined by HPLC equipped with UV detector. The results of the study revealed slightly enhanced levels of Ni and Cd in these samples while the rest of the metals were present within tolerable range. Acetamiprid residues in soil were strongly positively correlated with Cu and negatively correlated with Cr. Similarly, imidacloprid in soil was negatively correlated with Ni. Thus it was evidenced that Cu stabilizes acetamiprid while Cr and Ni facilitate the degradation of acetamiprid and imidacloprid in the soil.

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“…Trace element accumulation in paddy systems is determined by several influences, such as the bioavailability of the metals, the physicochemical properties of the paddy soil, and the plant species of interest [272]. According to Tariq and Rashid (2012), the trace element concentrations in paddy soil are significantly correlated with plant uptake but insignificantly correlated with the physicochemical properties of paddy soils and the plant species. Therefore, through plant rhizosphere processes, trace element uptake is generally governed by the physicochemical properties of paddy soil.…”

Section: Trace Element Accumulation Influences In Paddy Soil-rice Systemsmentioning

confidence: 99%

Comprehensive review of the basic chemical behaviours, sources, processes, and endpoints of trace element contamination in paddy soil-rice systems in rice-growing countries

Ali

Mao

Zhang

et al. 2020

Journal of Hazardous Materials

158

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Rice is the leading staple food for more than half of the world's population, and approximately 160 million hectares of agricultural area worldwide are under rice cultivation. Therefore, it is essential to fulfil the global demand for rice while maintaining food safety. Rice acts as a sink for potentially toxic metals such as arsenic (As), selenium (Se), cadmium (Cd), lead (Pb), zinc (Zn), manganese (Mn), nickel (Ni), and chromium (Cr) in paddy soil-rice systems due to the natural and anthropogenic sources of these metals that have developed in the last few decades. This review summarizes the sources and basic chemical behaviours of these trace elements in the soil system and their contamination status, uptake, translocation, and accumulation mechanisms in paddy soil-rice systems in major rice-growing countries. Several human health threats are significantly associated with these toxic and potentially toxic metals not only due to their presence in the environment (i.e., the soil, water, and air) but also due to the uptake and translocation of these metals via different transporters. Elevated concentrations of these metals are toxic to plants, animals, and even humans that consume them regularly, and the uniform deposition of metals causes a severe risk of bioaccumulation. Furthermore, the contamination of rice in the global rice trade makes this a critical problem of worldwide concern. Therefore, the global consumption of contaminated rice causes severe human health effects that require rapid action. Finally, this review also summarizes the available management/remediation measures and future research directions for addressing this critical issue.

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Multivariate Analysis of Metal Levels in Paddy Soil, Rice Plants, and Rice Grains: A Case Study from Shakargarh, Pakistan

Cited by 30 publications

References 43 publications

Lead toxicity in rice: effects, mechanisms, and mitigation strategies—a mini review

Lead toxicity in rice: effects, mechanisms, and mitigation strategies—a mini review

Distribution of Heavy Metals in the Soils Associated with the Commonly Used Pesticides in Cotton Fields

Comprehensive review of the basic chemical behaviours, sources, processes, and endpoints of trace element contamination in paddy soil-rice systems in rice-growing countries

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