Alleviation of phytotoxic effect of heavy metals on wheat by multiple heavy

Overview

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Key numbers

The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:

• lead, zinc and iron ranging from 1 to 7%. Significant quantities of cadmium and silver are also present in them. After processing of different ores, large
• amount of waste (90%) is produced which is dumped in the tailing dams. The waste contains 0.05-0.1% lead, 0.16-0.3% zinc, 3-5% iron, 3-4% sulphur, 13-14%
• calcium, 8-9% magnesium and 31-33% acid insolubles. The finer particles from the tailing dams are carried away by the wind during the dry season and the
• The plasmid DNA samples were checked by electrophoresis on 0.8% horizontal agarose gel.
• centrifugation (6000 rpm, 10 min), washed twice with sterile distilled water, and resuspended in biological saline (0.85% NaCl). Bacterial suspensions were
• student test (t-test) with confidence levels of 5% or P ≤ 0.05 being considered significant.
• DNA was amplified using universal primers, 27 f and 1492 r in PCR and an amplified product of 1.5Kb was obtained (Fig. 2). Isolate HMT 7 showed 99%
• HMT 7 maintained fairly high growth (96%) in presence of multiple heavy metals thereby confirming multiple heavy metal tolerance.
• experiment data were recorded under heavy metals stress condition after 45 days of germination and summarized in Table 3.In uninoculated control TZ1
• Zn/kg, 1 mg Cd/Kg and 1mg Pb/Kg amended soil). Data are recorded after 45 days of germination; datais presented as means of 3 replicates ± SD (standard
• 10. Ozlu E, Kumar S (2018) Response of soil organic carbon, pH, electrical conductivity, and water stable aggregates to long-term annual manure and

Methods (brief)

• soil bacterial strain isolated from heavy metal contaminated soil collected from Zawar, Udaipur (India) with the aim of exploring the impacts of land use on
• Physicochemical analysis of soil samples
• Soil samples were collected from rhizosphere of Tridex plant growing in tailing dam in Zawar, Udaipur (India). Zawar (24° 21’ N; 73° 41’E), is an ancient zinc
• smelting site, situated about 40 km southeast of Udaipur. Collection of these samples was done in sterilized zipper polythenes. The soil samples were air
• samples was carried out using atomic absorption spectrophotometer.
• The plasmid DNA samples were checked by electrophoresis on 0.8% horizontal agarose gel.
• Physicochemical analysis of soil samples
• In the present study, the soil samples were collected from rhizosphere of Tridax sp. plant growing in tailing dam in Zawar, Udaipur (India). The soil of the area
• Heavy metal content of rhizospheric soil sample collected from Zawar, Udaipur, India
• Sample collection site Satellite location EC (dS/m) pH OC Heavy Metal Content (mg/Kg)
• Occurrence of heavy metals in soil samples is a direct evidence of contamination through ore mining and other anthropogenic activities in nearby area. The
• rhizospheric soil samples of the present study were found contaminated with a high degree of heavy metals including Zn, Cd, Pb and Fe. The excess of heavy
• metals in the soil samples collected from Zawar region is due to the ore mining activity of the Zawar group. Several reports have confirmed the accumulation

Implications

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Wiki pages this source may touch

• Fish — marine, non-predatory (sardines, anchovies, salmon, cod)
• Shellfish (shrimp, crab, lobster, clams, oysters, mussels)
• Cadmium
• Nickel
• Chromium

Verification notes

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• Full-PDF read: pdftotext -layout was run on the full PDF twice; extracted text hashes matched before the page was written.
• Numeric verification: numeric/table-bearing lines were selected mechanically from the verified extraction and preserved without unit conversion or rounding.
• Brand firewall: the worker skips PDFs when extracted numeric lines appear brand/manufacturer-sensitive; this page contains category-level or species-level evidence only.
• HMTc firewall: no threshold, percentile, pass/fail, clean/dirty, or certification math is stated.

Update history

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