Rohit A. Kale

Ecology, Botany, Physiology

MSc, M.Phil, PhD (in progress)
2.62

Publications

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    Rohit A Kale · Vinayak H Lokhande · Avinash · B Ade
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    ABSTRACT: The present investigation was undertaken to study the growth, biomass, physiological-biochemical responses and chromium (Cr) accumulation capacity of hydroponically grown Portulaca oleracea cuttings exposed to Hoagland solution supplemented with Cr(VI) (0.0, 0.1, 0.5, 1.0, 2.5, 5.0, 10 mg/L) for 30 days. The cuttings exhibited effective regeneration in Hoagland solution in comparison to deionized water. Plants demonstrated significant reduction in growth (root and shoot length, leaf area), biomass (root and shoot dry weight), pigments (total chlo-rophylls and carotenoids) and total soluble sugar content at higher concentration of Cr(VI) (10 mg/L). However, plants could tolerate Cr stress through significantly higher accumulation of proline and increased activity of peroxidase resulting in significant Cr accumulation (150–190 mg/kg dry weight) in harvestable parts of Portulaca. Thus, the results suggest application of P. oleracea for phytoremediation of Cr-contaminated sites for the protection of environment.
    Full-text · Article · Feb 2015 · Water and Environment Journal
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    Rohit A. Kale · Avinash B. Ade
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    ABSTRACT: Purslane (Portulaca oleracea L.) cuttings were grown in a hydroponic system containing Hoagland nutrient solution with different concentrations (0.0, 0.1, 0.5, 1.0 mg L-1) of cadmium (Cd) for 30 days. The growth, biomass productivity and biochemical responses of Purslane against Cd were analyzed. Experimental plants exhibit significant reductions in growth (root and shoot length, leaf area) and biomass productivity (root and shoot fresh weight and dry weight). However, shoot and root water contents were enhanced with increasing concentrations of cadmium. Photosynthetic pigment (total chlorophyll and carotenoid) contents were decreased whereas antioxidant proline accumulation was increased in metal accumulator plants. Similarly the antioxidant enzyme activity such as peroxidase was increased with decrease in catalase activity. These results collectively indicate the applicability of P. oleracea for phytoremediation of Cd contaminated sites. Keywords: Hydroponics, Phytoremediation, Purslane, cadmium, heavy metals, growth, biomass, pigments, antioxidants.
    Full-text · Conference Paper · Sep 2014
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    Rohit Kale · Venkat Gunale
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    ABSTRACT: This book gives detailed idea of effect of air pollution on roadside plants in major cities of India, a case study being Pune city. In this work plant morphological, anatomical, physiological and biochemical response of naturally growing roadside plants viz., Polyalthia longifolia, Ficus benjamina and Mangifera indica were investigated. Along with this, special stress was given on plant anatomical changes. Rohit Kale I am Mr. Rohit Kale, pursuing PhD in the area of Heavy metal Phytoremediation with Prof. V. R. Gunale, Dept. of Botany, University of Pune, India. My research interests lies in abiotic stress to plants, Plant physiology under stress, Plant ecology. We are studying metal phytoextraction capacity of some weed plants, using various chelating agents.
    Full-text · Book · Nov 2013
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    Rohit A. Kale · Avinash B. Ade
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    ABSTRACT: Portulaca oleracea L. an annual weed is considered as a potential candidate for the phytoremediation of heavy metals. The effect of chromium on seed germination, growth and antioxidants such as proline and peroxidase in P. oleracea was investigated. The seeds were exposed to Hoagland solution with six different concentrations (5, 10, 25, 50, 100, 200 ppm) of chromiumVI. Hoagland solution was used as a control. Seed germination and growth was affected by all six concentrations of chromiumas comparedwith the control. Root growth was affected more at all concentrations. The antioxidant response (proline and peroxidase) also increased under heavy metal stress. The results obtained suggest that the P. oleracea can be employed at moderately polluted sites of chromium. Keywords: Antioxidants, Hoagland solution, Phytoremediation, Purslane
    Full-text · Conference Paper · Oct 2013

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