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RISS 인기검색어
- 검색키워드
- 저자 : Priyanka Chandra (검색결과 3 건)
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Priyanka Chandra,Arvind Kumar Rai,Nirmalendu Basak,Parul Sundha,Kailash Prajapat,Awtar Singh,Rajender Kumar Yadav 대한환경공학회 2024 Environmental Engineering Research Vol.29 No.6
Some fungi have a unique ability to adapt and establish beneficial association with crop in salt–affected soils. Therefore, present study was conducted to characterize the salinity–tolerance, P–solubilization and growth promotion ability of the fungal isolates from the rhizosphere of salt–tolerant crops. The rhizospheric soil showed an assemblage of fifteen phosphate–solubilizing fungal (PSF) isolates tolerant to salinity (5% NaCl w/v), alkalinity (pH 8.0), and thermal stress (up to 40℃). Soil pH, EC, organic carbon, KMnO₄–N, Olsen’s P, and NH₄OAc–K explained about 51.6% variability in the rhizosphere assemblage of the microorganisms. The genera Aspergillus and Penicillium were abundant in rhizosphere. The association of Penicillium spp. with crops was greater in soil of higher salinity than Aspergillus. The salt–tolerant fungi demonstrated variable effects on the germination of different crops. Siderophore and fungal biomass of the isolates cause 23% variability in plant growth parameters. The PSF strains PP3 and SA1 of the Penicillium and Aspergillus, respectively, showed high P solubilization without any appreciable change at high salinity. This study concluded that the PSF producing siderophores and phytohormones has significant importance for promoting growth and survival of crops in salt–affected soils.
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Khatun, Amina,Pal, Sandipan,Mukherjee, Aloke Kumar,Samanta, Palas,Mondal, Subinoy,Kole, Debraj,Chandra, Priyanka,Ghosh, Apurba Ratan The Korean Society of Environmental Toxicology 2016 환경독성보건학회지 Vol.31 No.-
Objectives The present study analyzes metal contamination in sediment of the East Kolkata Wetlands, a Ramsar site, which is receiving a huge amount of domestic and industrial wastewater from surrounding areas. The subsequent uptake and accumulation of metals in different macrophytes are also examined in regard to their phytoremediation potential. Methods Metals like cadmium (Cd), copper (Cu), manganese (Mn), and lead (Pb) were estimated in sediment, water and different parts of the macrophytes Colocasia esculenta and Scirpus articulatus. Results The concentration of metals in sediment were, from highest to lowest, Mn ($205.0{\pm}65.5mg/kg$)>Cu ($29.9{\pm}10.2mg/kg$)>Pb ($22.7{\pm}10.3mg/kg$)>Cd ($3.7{\pm}2.2mg/kg$). The phytoaccumulation tendency of these metals showed similar trends in both native aquatic macrophyte species. The rate of accumulation of metals in roots was higher than in shoots. There were strong positive correlations (p <0.001) between soil organic carbon (OC) percentage and Mn (r =0.771), and sediment OC percentage and Pb (r=0.832). Cation exchange capacity (CEC) also showed a positive correlation (p <0.001) with Cu (r=0.721), Mn (r=0.713), and Pb (r=0.788), while correlations between sediment OC percentage and Cu (r=0.628), sediment OC percentage and Cd (r=0.559), and CEC and Cd (r=0.625) were significant at the p <0.05 level. Conclusions Bioaccumulation factor and translocation factors of these two plants revealed that S. articulatus was comparatively more efficient for phytoremediation, whereas phytostabilization potential was higher in C. esculenta.
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Amina Khatun,Sandipan Pal,Aloke Kumar Mukherjee,Palas Samanta,Subinoy Mondal,Debraj Kole,Priyanka Chandra,Apurba Ratan Ghosh 환경독성보건학회 2016 환경독성보건학회지 Vol.31 No.-
Objectives The present study analyzes metal contamination in sediment of the East Kolkata Wetlands, a Ramsar site, which is receiving a huge amount of domestic and industrial wastewater from surrounding areas. The subsequent uptake and accumulation of metals in different macrophytes are also examined in regard to their phytoremediation potential. Methods Metals like cadmium (Cd), copper (Cu), manganese (Mn), and lead (Pb) were estimated in sediment, water and different parts of the macrophytes Colocasia esculenta and Scirpus articulatus. Results The concentration of metals in sediment were, from highest to lowest, Mn (205.0±65.5 mg/kg)>Cu (29.9±10.2 mg/kg)>Pb (22.7±10.3 mg/kg)>Cd (3.7±2.2 mg/kg). The phytoaccumulation tendency of these metals showed similar trends in both native aquatic macrophyte species. The rate of accumulation of metals in roots was higher than in shoots. There were strong positive correlations (p <0.001) between soil organic carbon (OC) percentage and Mn (r =0.771), and sediment OC percentage and Pb (r=0.832). Cation exchange capacity (CEC) also showed a positive correlation (p <0.001) with Cu (r=0.721), Mn (r=0.713), and Pb (r=0.788), while correlations between sediment OC percentage and Cu (r=0.628), sediment OC percentage and Cd (r=0.559), and CEC and Cd (r=0.625) were significant at the p <0.05 level. Conclusions Bioaccumulation factor and translocation factors of these two plants revealed that S. articulatus was comparatively more efficient for phytoremediation, whereas phytostabilization potential was higher in C. esculenta .
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