Zinc in Crops and Human Health

Das, Sudipta; Green, Andrew

doi:10.1007/978-81-322-2716-8_3

Cited by 50 publications

(61 citation statements)

References 2 publications

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“…Zn deficiency in plants decreases yield and quality, and results in sub-optimal nutrient-use efficiency. 5 In addition, an improvement of NUE is a major goal for crops, in which the selection and growth of N-efficient crops is a special issue. 10 -38 However, there is still a lack of sufficient experimental data to enable conclusions to be made about the effects of micronutrients on the uptake and utilization of other essential plant nutrients.…”

Section: Discussionmentioning

confidence: 99%

“…Although this strategy for biofortification is unproven as yet, it has the potential to become both sustainable and cost effective and to reach remote rural populations. 4 Concern about Zn, and the impact of its application on increasing crop yields has been recorded for most crops, both under irrigated and rainfed conditions, 5 and the recent literature indicates that the combination of agronomic biofortification with breeding is an applicable and sustainable approach to the Zn-deficiency problem in humans. 6 In addition to the nutritional quality of agricultural products destined for human consumption, another aspect to consider is the fact that the rapid population growth over recent decades has generated an increase in the demand for vegetable products.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Zn-biofortification enhanced nitrogen metabolism and photorespiration process in green leafy vegetableLactuca sativaL

Barrameda-Medina

Lentini

Esposito

et al. 2016

J. Sci. Food Agric.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Zn-biofortification enhanced nitrogen metabolism and photorespiration process in green leafy vegetableLactuca sativaL

Barrameda-Medina

Lentini

Esposito

et al. 2016

J. Sci. Food Agric.

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“…Agriculture plays a significant role in the overall socio-economic fabric of India. Indian soils are zinc deficient and it has been recommended that 15 to 30 kg/ha of zinc be applied annually in order to maintain an adequate zinc nutritional status of crop plants in India [10]. Much of this zinc may be applied as nanoparticulate formulations [11,12].…”

Section: Introductionmentioning

confidence: 99%

Effects of Nanoparticles on Plant Growth-Promoting Bacteria in Indian Agricultural Soil

Chavan

Vigneshwaran

2019

Agronomy

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Soil bacteria are some of the key players affecting plant productivity. Soil today is exposed to emerging contaminants like metal engineered nanoparticles. The objective of this study was to evaluate the toxicological effects of silver and zinc oxide nanoparticles on bacteria classified as plant growth-promoting bacteria. Three types of bacteria-nitrogen fixers, phosphate solubilizers, and biofilm formers-were exposed to engineered nanoparticles. Initially, the effect of silver and zinc oxide nanoparticles was determined on pure cultures of the bacteria. These nanoparticles were then applied to soil to assess changes in composition of bacterial communities. Impacts of the nanoparticles were analyzed using Illumina MiSeq sequencing of 16S rRNA genes. In the soil used, relative abundances of the dominant and agriculturally significant phyla, namely, Proteobacteria, Actinobacteria, and Firmicutes, were altered in the presence of silver nanoparticles. Silver nanoparticles changed the abundance of the three phyla by 25 to 45%. Zinc oxide nanoparticles showed negligible effects at the phylum level. Thus, silver nanoparticles may impact bacterial communities in soil, and this in turn may influence processes carried out by soil bacteria.

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“…The soil conditions that commonly lead to zinc deficiency in crops are low total zinc concentrations, such as sandy soils; highly weathered parent materials with low total zinc contents, such as tropical soils; high calcium carbonate contents, such as calcareous soils; neutral or alkaline pH, as in heavily limed soils or calcareous soils; high salt concentrations, i.e., saline soils; peat and muck, as inorganic soils; and high phosphate status; prolonged waterlogging or flooding, as in rice soils; and high magnesium and/or bicarbonate concentrations in soils or irrigation water (Das & Green, 2013, Alloway, 2008.…”

Section: Discussionmentioning

confidence: 99%

Distribution of Zinc in Selected Benchmark Soils of South Western Nigeria

Thomas¹,

Omueti²,

Adebisi³

2018

JAS

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The Understanding of the different fractions of Zinc in soils is important to effectively manage fertilizer resources due to the low availability of Zinc in the native soil worldwide. Bioavailability, uptake of Zinc by plant and its fractions depend largely on the soil parent material, the type of chemical transformation the soil has been expose to over times and some anthropogenic intervention. This study examined five different Zn pools.The distribution of Zn in soil fractions was determined for seven selected soils of South Western Nigeria. A sequential batch extraction which had been modified was used to identify Zn fractions and were separated into: the extractable zinc (Ex-Zn), zinc associated with the carbonate (CO 3 -Zn), the organically bound zinc (Org-Zn), sesquioxide (Ox-Zn) and residual (Res-Zn) in each soil. Total Zn was estimated as a sum of all the pools.Result showed that Zinc fractions in the soils were in this order: extractible pool (3.8%) < organic pool (13.6%) < carbonate pool (14.8%) < sesquioxide pool (22.8%) < residual pool (45.1%). The residual pool amounts for almost half of the zinc that made up the total zinc in the soil. The distribution of zinc into these pools were determined by selected physical and chemical properties of the soil; the pH, organic carbon, clay, CEC, and phosphorus. However, soil phosphorus and pH had the highest influence on the zinc in the experimental soils. The stable fraction that dominated the soil was evident in the low extractable Zn fractions in the soil. Which is an indication of the inherently low levels of the bioavailability of Zn in the selected soils used in this study.

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Zinc in Crops and Human Health

Cited by 50 publications

References 2 publications

Zn-biofortification enhanced nitrogen metabolism and photorespiration process in green leafy vegetableLactuca sativaL

Zn-biofortification enhanced nitrogen metabolism and photorespiration process in green leafy vegetableLactuca sativaL

Effects of Nanoparticles on Plant Growth-Promoting Bacteria in Indian Agricultural Soil

Distribution of Zinc in Selected Benchmark Soils of South Western Nigeria

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