prasad m n v
TRANSCRIPT
Emerging phytotechnologies for remediation of heavy meal polluted and contaminated soil and water
M.N.V. Prasad
Department of Plant Sciences University of HyderabadHyderabad 500046, A.P : 040-23011604; 23134509: [email protected][email protected]
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
• This talk is confined to trace elements (non-mutable) (= metals, metalloids and radionuclides) in the environment
• Plants control 80% of the energy in most ecosystems (via solar radiation) and do not need external energy sources.
• Plants grow extensive root systems (the hidden half of the plant, often measures 1000s of km/acre/yr
• Phytotechnologies are ecologically sound alternatives and non-destructive compared to physical/chemical remediation methods feasible to apply to different ecosystems:
• Phytotechnologies provide "Green solution” to a variety of environmental problems rapidly growing in contemporary world
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Frequently Asked Questions(Mechanisms, Diversity, efficacy & safety related)
• How does phytotechnology works ?• Disbelief among scientists ? • Some say it is only temporary solution?• How are plants selected ?• How to dispose of the plants contaminated in the
process of phytoremediation ?• Will phytoremediation work on every contaminated/
polluted site ?• How do we know that phytoremediaiton is working ?• Are products of phytoremediation usable ?
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Biological Science
EngineeringChemical Science
Biochemistry
Biotechnology
Bioengineering
Chemical engineering
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
Biotechnology
Environmental biologyGeology
Biogeotechnology
Environmental
Bio-Geo-technology
Environmental Geology
Environmental Biotechnology
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
Use of plants well beyond food, fodder, fuel, fiber and fertilizer is beginning of environmental biogeotechnology. Air, water and soil is polluted with toxic levels of trace elements and is a global issue Metal tolerant plants, and plants that hyperaccumulate toxic levels of metals are the useful tools for phytotechnologiesIn wealthy countries contamination is often highly localized, and the pressure to use contaminated land and water for agricultural food production or for human consumption, respectively, is minimal. However, pollution and contamination is wide spread in eastern European and some Asian countries [1] and is dramatically increasing in large parts of the developing world – egs India and China [2].[1] Meharg A.A: Arsenic in rice – understanding a new disaster for South-East Asia. Trends Plant Sci2004, 9:415-417.[2] Cheng S: Heavy metal pollution in China: origin, pattern and control. Environ Sci Pollut Res Int 2003, 10:192-198.Prasad, M.N.V. (1998) Metal-biomolecule complexes in plants: occurrence, functions and applications. Analusis 26: 25-28
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Heavy metal availability
Industry:
Plastic, textiles, microelectronics,
wood preservatives
Mining: mine refuse,
tainings, smelting
Agrochemicals:
FYM, pesticides, ground water
irrigation
Fly ash:Coal
combustion products
Aerosols:Pyrometallurgy,
Automobile exhausts
Biosolids: Sewage sludge,Domestic waste
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Phytotechnologies
Prasad M.N.V., Sajwan K.S, and Ravi Naidu (eds) (2006) Trace elements in the environment: Biogeochemistry, Biotechnology and Bioremediation.CRC Press. Boca Raton. USA. pages 726, Taylor and Francis Group
xxM.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
M.N.V.PrasadDept. Plant Sciences
Soil
WaterAir
Other uses
RhizofiltrationHydraulic barriersConstructed wetlands Vegetation caps
Buffer zones for storm water retention bioengineering for erosion control
Green belts Green live walls
Green roofs
Phytoextraction, PhytostabilizationPhytoimmobilization, Phytovolatilization
Prasad, M.N.V. and H. Freitas (2003) Metal hyperaccumulation inplants – Biodiversity prospecting for phytoremediation technology. Electronic J. of Biotechnology 6(3):275-321 Online electronic journal.http://www.ejbiotechnology.info/content/vol6/issue3/index.html
University of Hyderabad
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
2002 US-EPA prioritized phytotech projects
Prasad, M.N.V. (2003). Phytoremediation of Metal-Polluted
Ecosystems: Hype for Commercialization Russian Journal of Plant
Physiology, 50 (5) 686–700.
Fiziologiya Rastenii, Vol. 50, No. 5, 2003, pp. 764–780.(in Russian)
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
is up to 1% in dry matter (depends on metal)
Prasad, M.N.V. (ed) (2001) Metals in the Environment: Analysis by biodiversity. Marcel Dekker Inc. New York. pp. 504
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
Environmental crops (annual and perennials)
Prasad, M.N.V. and H. Freitas (2003) Metal hyperaccumulation in plants – Biodiversity prospecting for phytoremediation technology. Electronic J. of Biotechnology 6(3):275-321 Online journalhttp://www.ejbiotechnology.info/content/vol6/issue3/index.html
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Prasad, M.N.V. and H. Freitas (2003) Metal hyperaccumulation in plants – Biodiversity prospecting for phytoremediation technology. Electronic J. of Biotechnology 6(3):275-321. Online journal. http://www.ejbiotechnology.info/content/vol6/issue3/index.html
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
Prasad, M.N.V. and H. Freitas (2003) Metal hyperaccumulation in plants – Biodiversity prospecting for phytoremediation technology. Electronic J. of Biotechnology 6(3):275-321. Online journal. http://www.ejbiotechnology.info/content/vol6/issue3/index.html
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
Metal (Pb)
Metal (Pb)Phytoextraction
Composting/Landfill pits
Incineration/ Cofiring with coal
26 wt%
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Prosopis juliflora was found to be occurring extensively on the pegmatitic tailings Leaves and twigs accumulated large concentrations of Sr, B, and Ba. (Nagaraju and Prasad Envir Geol. 36: 320-324, 1998)
The ubiquitous thorny tree has an extraordinary ecologic amplitude and tolerance for a variety of elements.
M.N.V.PrasadDept. Plant Sciences
University with potential for ExcellenceAwarded 5 stars by NAAC
University of Hyderabad
Biomass power plant near Vijayawa > 30 % feedstock is from P.juliflora
Charcoal production using Prosopis juliflora
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Composting Incineration
Extraction
Recovery and use Biodiesel, Industrial use and fibres etc.
Harvested biomass of the selected industrial, fibreand energy crops is processed for metal recovery
Radionuclides
Trace elements
Environmental crops
Appropriate agrotechnology isbeing developed via “-omics” and biogeotechnologyfor sustainabledevelopment
Gratão PL, Prasad, M.N.V., Lea P.J. and Azevedo R.A. (2005) Phytoremediation: green technology for the clean up of toxic metals in the environment . Brazilian J Plant Physiology 17(1):53-64
IndustrialUse
BiodieselPrasad 2006
Prasad M.N.V., Sajwan K.S, and Ravi Naidu (eds) (2006) Trace elements in the environment: Biogeochemistry, Biotechnology and Bioremediation.CRC Press. Boca Raton. USA. pages 726, Taylor and Francis Group
Rhizosphere biogeotechnology
Soil solution pool
Metal + Ligand = complex
biogeochemical processes
Uptake
Excretion
Respiration
Leakage
Exudation
H2O
C+/A-
H+/HCO3
CO2
OC
O2
Inorganic\organic phase
pe
L-
pH
C+/A-
Plant root
Organic
matter
Organic acids
Root exudate
Bacteria
Mycorrhizae
Phytosiderophores
Iron plaque Transporter
M.N.V.Prasad, Dept. Plant Sciences, University of Hyderabad
DesorptionAdsorption
DissociationPrecipitation
Redoxreaction
ChelationComplexation
H+HCO3-
Organic acids
Phytochelatins
Phytosiderophores
EnzymesInorganic ligands
Root-microbial associations
Acidification
Alkalinization
Precipitation
Chelation
SolubilizationImmobilization
Reduction
Transformation
Volatilization
Phytoimmobilization Phytoextraction Phytovolatiolization
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Relevant publications Walker T S, Bais H P, Grotewold E, Vivanco J M (2003) Root exudation and rhizosphere biology; Plant Physiology132 44-51.
Barceló J, Poschenrieder C, Tolrà R.P. (2003) Importance of Phenolics in Rhizosphere and Roots for Plant–Metal Relationships. Proc. 7th Intern. Conf. on the Biogeochem. of Trace Elements, Uppsala
Barcelo J and Poschenrieder C (2002) Fast root growth responses, root exudates, and internal detoxification as clues to the mechanisms of aluminium toxicity and resistance: a review; Environ Exp Bot 48 75-92.
Stem cutting
Roots in 100% humidity
Humid soil
Nylon net 25 µmto prevent root penetration into soil
M.N.V.Prasad, University of Hyderabad
Rhizosphere biotechnology - The rhizobox system with blotting
devices to collect the rhizospheric exudates - A suitable absorbing
matrix will be used.
Most simplified rhizobox systems used for collecting the rhizospheric exudates
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Proteomics
Metabalomics
Metallomics
Proteins
TranscriptomecDNA mRNA
Metabollomes
Metallome
Genomics
Biosysthesis/
Metabolism
phosphorus, sulfur, or nitrogen interaction with other cellular systems such as the genome, proteome, metabolome, and physical environment
Metal Transporters
Metallic ions
Proteomes
Plasma membrane
Genome
NUCLEUS
M
M
M
M
M
IonomicsPrasad 2006
Cell wall
Prasad (2004) Proc. Indian natn Sci Acad. B70 No. 1 pp 73-100M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Brassicaceae are the best candidates for
phytoremediation and are amenable to
biotechnology
Arabidopsis thalianaArmoracia rusticana
Brassica juncea
A novel family of
ubiquitous heavy metal
transport proteins and
cation transporter
families have been
characterizeds
Electroporation, PEG
mediated DNA uptake, particle
bombardme nt microinjection,
Agrobacterium cocultivation
etc. successful
Tissue culture techniques
and Agrobacterium
mediated transformations
have been well established
Prasad, M.N.V. and H. Freitas (2003) Metal hyperaccumulation in plantsBiodiversity prospecting for phytoremediation technology. Electronic J. of Biotechnology 6(3):275-321 Online electronic journal. http://www.ejbiotechnology.info/content/vol6/issue3/index.html
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Prof Richard S. Gordon, School of Agribusiness and Resource Management Arizona State University East, Mesa AZ, USA for hosting and arranging field visits to copper mines in the vicinity of Tucson and Globe. Thanks are due to Mr Stuart A. Bengson, Engineer for Ecosystem Rehabilitation, ASARCO Inc. Copper Operations, Tucson AZ, USA and Mr Terence O. Wheeler, President and General Manager, Arizona Ranch Management and Natural Resurce ManagementGlobe, AZ, USA.
World’s largest copper mine tailing remediation, Arizona, USA
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
50-100s of feet
Eichhornia crassipes
Elodea canadensis
Heteranthera dubia
Myriophyllum spicatum
Potamogeton pectinatus
P.richardsonii
Ceratophyllum demersum
Vallisneria american
V. spiralis
Aquatic macrophytes for phytotechnologies
Wolffia globosa
Lemna trisulca
Hydrilla verticillata
Typha latifolia
Concentration Factor:[Metal] plant (µg/g dry wt)
[Meta] water(µg/mL)
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
As contaminated ground water
Pretreatment and Conducive physico-chemical parameters for plant uptake
As As As As AsAs
Phytomass harvest – As recovery = phytoextraction
Water for
Domestic use
Phytovolatilization Arsenic hyperaccumulator
M.N.V.PrasadDept. Plant Sciences
University with potential for ExcellenceAwarded 5 stars by NAAC
Sedimentation pod
Air
Free water surface wetland Cell
Anoxic limestone drain Cell
SAPS Cell (Successive Alkalinity Producing Systems
(SAPS) Cell
Aerobic bioreactor Cell
Vertical sub-surface flow wetland Cell
Anaerobic bioreactor cell
Oxic limestone drain Cell
Compost Cell
Inflow
Sand
Gravel
M.N.V.PrasadDept. Plant Sciences
University with potential for ExcellenceAwarded 5 stars by NAAC
M.N.V.PrasadDept. Plant Sciences
University with potential for ExcellenceAwarded 5 stars by NAAC
Effluent
Influent
Influent
Cascade model for removal of xenobiotis and treatment of waste streams
Spartina alterniflora = Cord grass
Sporolobus virginicus = Coastal dropseed
Salicornia virginica = Perennial glasswort
Cladium jamaicense = Sawgrass
Salicornia alterniflora = Vermillon cordgrass
Scirpus validus = Great bulrush
Common Reed bedSettling tank
Buffering tank
Outlet
Treatment tank
Inflow
Outflow
Macrophytes
Sand and gravel layers
Vertical flow
M.N.V.PrasadDept. Plant Sciences
University with potential for ExcellenceAwarded 5 stars by NAAC
Inflow
Outflow
Subsurface horizontal flow Macrophytes
Sand and gravel layers
M.N.V.PrasadDept. Plant Sciences
University with potential for ExcellenceAwarded 5 stars by NAAC
Evidence for zinc protection to cadmium exposed Ceratophyllum demersum L.
Toxicity bioassay under different metal treatments
Cd-10 M + Zn-10 M +Zn-50 MControl + Zn-100 M +Zn-200 M
J.Analytical Atomic Spectrophotometry (RSC) 2004,19: 52-57 Plant Science 2004,166:1321-1327; 2005,169: 245-254 Bull Envir Contam Toxicology 2004,72,1038–1045; 2004,73,174–181Plant Physiol and Biochem 2003 41:, 391-397; 2005,43: 107-116Brasilian J Plant Physiol. 2005,17:3-20Chemosphere 2005,61: 1720-1733European J Mineral Processing and Envir Protection, 2005,4:95-101
M.N.V.PrasadDept. Plant Sciences
University with potential for ExcellenceAwarded 5 stars by NAAC
M.N.V.PrasadDept. Plant Sciences
University with potential for ExcellenceAwarded 5 stars by NAAC
An ideal experimental system for rhizofiltration of environmental pollutants and
contaminants
Nymphae nouchalii (Indian lotus) - a common tropical aquatic
macrophyte needed in constructed wetlands for water
purification. Wetlands are threatned ecosystems !!! (Ramsar
convention). Large lakes and water bodies are disappering
A constructed wetland near Vijayawada for water storage and purification (introduced aquatic macrophytes)
Vallisneria spiralis (Tape grass)Constructed wetland
Metal Conc. mg/g dry wt
No of taxa
No. of families
Classic e.g.
Cd > 0.1 1 1 Thlaspi caerulescensPb >1 14 6 Minuartia verna
Co >1 28 11 Aeollanthus biformifoliusCu >1 37 15 Aeollanthus biformifoliusNi >1 317 37 Alyssum bertolonii, Berkheya coddiMn >10 9 5 Macadamia neurophyllaZn >10 11 5 Sedum alfredii, Thlaspi caerulescens
As >22 2 1 Pteris vittata, Pityrogramma calomelanos
Ma et al, Nature 2001Arsenic accumulation in
ferns
As mg kg-1 Reference
Pteris vittata 22,630 Ma et al. 2001
Pityrogrammacalomelanos
8350 Francesconiet al 2002
P. umbrosa 7600 Zhao et al. 2002
P.cretica 3030 Zhao et al. 2002
Ceratophyllum demersum L.:A free floating aquatic macrophyte
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
Table 1: Dietary, environmental sources of arsenic and toxicity (Oliveira da Silva et al 2005, Kumaresan and Riyazuddon 2005, Li and Chen 2005, Nriagu 1989, Pacyna & Pacyna 2001)Natural sources
Windblown dusts,. Sea salt spray, Volcanoes, Forest fires, Continental particulates and volatiles, Marine
Anthropogenic sources
Fossil fuel combustion , Non-ferrous metal production,Iron and steel production,Cement production, Poultry and pig manure, Waste disposal
Food Bovine, chicken meat, sheep, sea food, Indian mustard, tomato, grape juice, wine, spinach, carrots, schrimps, green papaya, rice, milk, soya-sauce etc.
Industrial and veterinary products
Pigments, insecticides and herbicides, hematosis additives, wood preservatives, manufacturers of glass , alloys, and semiconductor materials electronics, catalysts, and veterinary chemicals
Toxicity The major arsenic species are: arsenite As(III), arsenate As(V), arsenious acids (H3AsO3, H2AsO3– ,HAsO3 2 –), arsenic acids (H3AsO4, H2AsO4–,, HAsO42 –), dimethylarsinate (DMA), monomethylarsonate (MMA), arsenobetaine (AB) and arsenocholine (AC). Oxidation states that arsenic commonly exhibits (– III, 0, III, V) . Arsenite is 10 times more toxic than arsenate and 70 times more toxic than the methylated species, DMA and MMA. DMA and MMA are moderately toxic, whereas AB and AC are virtually non-toxic.M.N.V.Prasad
Dept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
Phytochelatins
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
Elless MP, Poynton CY,. Willms CA, Doyle MP, Lopez AC, Sokkary DA, FergusonBW and Blaylock MJ (2005) Pilot-scale demonstration of phytofiltration for treatment of arsenic in New Mexico drinking water WaterResearch, 39: 3863-3872Photographs of the principal components of the phytofiltration system, (a) plant in potting mix, foam wrap, and cup, (b) plant suspension tray showing location of eight plants per tray, (c) an entire wrapped fern plant, (d) tray of eight fern plants, and (e) bank of ferns in phytofiltration nursery system used to develop the root system of the ferns.
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
University of Hyderabad
1. Low molecular weight organic acids and amino acids
Hall 2002; Deiana et al 2003; Delhaize et al 1993, Hall 2002; Ma et al 2001b; Pigna et al 2003; Sanità Di Toppi et al 2003; Wu et al 2003
2. Heat shock proteins
Reddy and Prasad 1993; Neumann et al 1994; Reddy and Prasad 1995
3. Vacuolar compartmentation
Prasad 1995, 1997, 1999, Clemens et al 2002;
4. Metal transporters (cation efflux family = cation diffusion family)
Assuncão et al 2001; Lasat et al 2000; Persans et al 2001, Pence et al 2000; Guerinot 2000, Prasad 2002a, 2003a; Mc Grath and Zhao 2003
Adaptive ecophysiological, biochemical and molecular basis for phytotechnologies
Prasad (2004) Proc. Indian natn Sci Acad. B70 No. 1 pp 73-100Contd… M.N.V.Prasad
Dept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Contd… previous slide
5. Rhizosphere biotechnology and Physiology and biochemistry of metal tolerance and toxicity
Wenzel et al 2003 in Prasad 2004; Prasad and Strzalaka 2002
6. Genetic and transgenic strategies for metal hyper accumulation
Clemens 2001, Clemens et al 2002, Karenlampi et al 2000, Pena and Seguin 2001, Gisbert et al 2003, Krämer and Chardonnens2001, Krämer 2005
7. Mycorrhizae
Bi et al 2003; Jan Colpaert 2001 in Prasad 2001; Khan 2001; Khan et al 2000;
8. Naturally occuring metal accumulators
Brooks 1998, Prasad 2001, Prasad and Freitas 2003
Prasad (2004) Proc. Indian natn Sci Acad. B70 No. 1 pp 73-100
Adaptive ecophysiological, biochemical and molecular basis for phytotechnologies
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Phytotechnologies - assessment and applicability
Site conditions Field pilot trials Post monitoring
• Site layouts
• Hydrological conditions
• Ground water
• Weather
• Agronomic studies
• Plant selection
• Planting techniques
• Soil amendments
•Fertilizer application
•Maintenance and
after care
• Soil sampling
• Ground water sampling
• Plant sampling
• Air monitoring
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
-omicsIonomics
MetallomicsMetabollomics
Proteomics Genomics
Rhizosphere biotechnologyConservation of metallophytes
Environmental cropsMetal hyperaccumulators
Global metallophyte initiative
Metal recovery and residue management
Amedments and environmental safety
Risks of remediation
Metallophyte regional mapping
Metallophyte data base and diverisity
SCOPE
LIMITATION
Phytotechnologies scope and limitations
Conclusion
M.N.V.PrasadDept. Plant Sciences
University with potential for ExcellenceAwarded 5 stars by NAAC
Double beam UV-VIS and NIR reflectance spectrophotometersCyclotec mill and Flame photometer
Research Labs
We have a well organized “Environmental Biotechnology laboratory” in the Dept. of Plant Sciences. Our research group in studies on Plant-Metals interactions from molecules to ecosystem (Phytotehnologies). Published extensively on metal-binding complexes, toxicity reversal mechanisms, metal-ion interactions with micronutrients, impact of metal-ions on growth, photosynthesis and co-stress phenomena. Metal resistance mechanisms have been investigated in wide range of experimental systems which include: green algae:Scenedesmus quadricauda, S.bijugatus, Chlamydomonasreinhardtii; crop plants: Oryza sativa, Sorghum bicolor, Zeamays, Vigna radiata and Brassica juncea; aquatic macrophytes: Ceratophyllum demersum, Vallisneriaamericana and Lemna trisulca.• Ferritin in Vigna mungo and transgenic Brassica juncea,itsfunctions on iron homeostasis, oxidative stress and heavy metal detoxification were investigated and published. • Phytoremediation of metal polluted terrestrial and aquatic ecosystems, characterization of plant community tolerant to toxic trace mentals, development of biofilters for toxic metals using the phytomass of Acacia nilotica and Quercus ilex have been investigated (selected publications: Analusis 1998, 26: 25-28; Ann. N.Y. Acad. Sci. 1988, 851: 216-223; Biochemical Archives 1992, 8: 101-106; 1993, 9: 25-32; 1994, 10: 185-188; Bulletin of Environmental Contamination and Toxicology, 1992, 49: 600-605; 1999, 60: 306-311; 1998, 61: 623-628; 62: 502-507; 2004, 72:1038-1045; 2004, 73:174-181; Current Science 1989, 58: 1380-1382; Eectronic J. Biotechnology1999, 2:36-50; 2003, 6:285-312; Environmental and. Experimental Botany 1990, 30:251-264; 1995, 35:525-545; Environmental Pollution 2000, 110: 277-283; 2005, 135: 209-220; International J. of Phytoremediation 2001, 3: 289-300; J Analytical Atomic Spectrophotometry (RSC) 2004, 19: 52-57; J Plant Physiology 1992, 140: 156- 162; 1995, 145: 67-70; 1999; 155: 652-655; Photosynthetica 1995, 31: 635-640; Plant Physiology and Biochemistry, 2003, 41: 391-397; 2005, 43: 107-116; Plant Science 1998, 138: 157-165; 2001, 160: 291-299; 2001,161: 881-889; 2005, 169:245-254; Russian J Plant Physiology 2003; 50: 686-701, 2005, 51: 233-237;Environmental International 2004, 30: 65-72; Chemosphere 2004, 54, 1625-1642; 2005, 61: 1720-1733, Brazilian J Plant Physiology 2005 17(1): 3-20, 53-64, 113-128; European J Mineral Processing & Envir Protection 2004, 4: 95-101, 136-143; Journal of Geochemical Exploration 2005, 85: 99-107.
Computers Lab
Prasad, M.N.V., Sajwan, K.S and Ravi Naidu (Eds) (2006) Trace elements in the environment: Biogeochemistry, Biotechnology and Bioremediation. CRC Press. Boca Raton Taylor and Francis Group. 726 pp.
Prasad, M.N.V. (ed) (2004). Heavy metal stress in plants: From biomolecules to ecosystems. Springer-VerlagHeidelberg. 2nd Ed. pp. 462+xiv. Simulateouslypublished by Narosa Publishing House. New Delhi 2nd Ed. pp. 462+xiv
Prasad, M.N.V. and K. Strzalka (eds) (2002)Physiology and biochemistry of metal toxicity and tolerance in plants. Kluwer Academic Publishers. Dordrecht. pp. 432.
Prasad, M.N.V. (ed) (2001) Metals in the Environment Analysis by biodiversity. Marcel Dekker Inc. New York. pp. 504
Prasad, M.N.V. and J. Hagemeyer (eds) (1999) Heavy Metal Stress in Plants: From molecules to ecosystems. Springer Verlag. Heidelberg. pp. 401
Prasad, M.N.V. (ed) (1997) Plant Ecophysiology, John Wiley and Sons Inc. New York USA. pp. 542
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC
Prof. Prasad is also the Coordinating the Post Gratudate Diploma in Environmental Education and Management (PGDEM) program since 1995 for the Centre for Distance Education. He had authored and also edited several lessons in the study material for the PGDEM.Established Infrastructure (with the financial support of DBT, DST, MNES MoEF, CSIR etc.): GBC 932 Plus Flame-Graphite furnace Atomic absorption spectrophotometer, Electrophoresis apparatus, refrigerated centrifuge, Cintra 5 UV-VIS and Chemito 2100 UV-VIS-NIR spectrophotometers with adequate computational facility. The research laboratories are furnished with the basic equipment such as Milli Q water distillation System, heavy duty horizontal autoclave, Refrigerators (-20oC), Sterilization equipment (Millipore), Laminar flow chambers, Stereo zoom and binocular microscopes, SLR/Digital Photographic cameras with a wide range of lenses are available. Some labs are air conditioned. Field research facility includes green house, net houses and seed storage module and is backed up by a 50 KVA diesel power generator.
Group leader: M.N.V. Prasad, ProfessorTel: +91-40-23011604; 040-23134509 Fax +91-40- 23010145; Email: [email protected]
Stereo zoom microscope UV-VIS spectrophotometer
GBC Atomic Absorption Spectrophotometer
Research Labs
M.N.V.PrasadDept. Plant Sciences
University with
potential for Excellence
Awarded 5* by NAAC