ENDOSULFAN RESISTANCE PROFILE OF SOIL BACTERIA AND POTENTIAL APPLICATION OF RESISTANT STRAINS IN BIOREMEDIATION
Journal Title: Present Environment and Sustainable Development - Year 2014, Vol 8, Issue 1
Abstract
In the present study, bacterial strains were isolated from the soils of Wayanad District, Kerala, India and the isolates were tested for their tolerance to endosulfan and potential in bioremediation technology. Pesticide contamination in the soils, soil physico-chemical characteristics and socio-economic impacts of pesticide application were also analyzed. 28 pesticide compounds in the soil samples were analyzed and the results revealed that there was no pesticide residues in the soils. As per the survey conducted the pesticide application is very high in the study area and the level of awareness among the farmers was very poor regarding the method of application and its socio-economic and ecological impacts. A total of 9 bacterial strains were isolated with 50μg/ml of endosulfan in the isolating media and the results showed that most of the bacterial strains were highly resistance to endosulfan. Out of the 9 strains isolated 6 were highly resistant to endosulfan (500-700μg/ml) and the other 3 isolates showed the resistance of 250-500μg/ml. From the studied isolate, isolate 9 demonstrating prolific growth and high resistance was selected to check their capability to degrade endosulfan over time. Identification of the selected strain reveals that it belongs to the genus Bacillus. Results of endosulfan removal studies showed that with increase in time, the biomass of the bacterial increased. The complete disappearance of endosulfan from the spiked and inoculated broth during the first day of incubation (24 hour interval) was observed. While the control flask showed the presence of endosulfan during the experimental period. Pesticide resistant bacteria are widely distributed in the soils of selected study area and the tolerance varied between bacteria even though they were isolatedfrom the soils of the same area. The selected Bacillus species carry the ability to degrade endosulfan at accelerated rates and it could be useful in framing a bioremediation strategy for pesticide contaminated soil and water environments.
Authors and Affiliations
P. K. Chandini, K. K. Jaysooryan, K. Sreedharan, K. P. Smitha
Keywords
Related Articles
- EP ID EP116592
- DOI -
- Views 118
- Downloads 0
ACADEMICIAN TATIANA CONSTANTINOV AT THE 70TH ANNIVERSARY
HYDROLOGICAL RISK CHARACTERISTICS OF THE OZANA RIVER VALLEY
The occurrence of hydrological risk phenomena is conditioned by a series of factors, related to climatic, geologic, geomorphologic, pedologic, vegetal aspects etc., which are specific to the drainage basin of the Ozana r...
IS THE BIOCLIMATE OF THE SUCEAVA PLATEAU COMFORTABLE OR UNCOMFORTABLE? ANALYSIS BASED ON WIND COOLING POWER INDEX AND SKIN AND LUNG STRESS INDEX
IS THE BIOCLIMATE OF THE SUCEAVA PLATEAU COMFORTABLE OR UNCOMFORTABLE? ANALYSIS BASED ON WIND COOLING POWER INDEX AND SKIN AND LUNG STRESS INDEX[sup][/sup]
THE ROLE OF NGOs IN THE SUSTAINABLE DEVELOPMENT IN BANGLADESH
Non-governmental organizations are claimed to have impacts on the sustainable development in rural areas of the developing countries and the Bangladesh Rural Advancement Committee (BRAC) is identified as an example...
HYDROUS EROSION IN THE CATCHMENT AREA OF THE WADI LARBAA (RIF MOUNTAINS, MOROCCO): AGENTS, PROCESSES AND MODELING
The watershed of Wadi Larbaa, in the Prerif area at the north of Taza, is a fragile and vulnerable milieu, where water erosion is causing annually important loss of land (soils) and excessive production of sediments. The...