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Dubey, Suresh Kumar
- Challenges and Knowledge Gaps in Ecological Sciences
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Authors
Affiliations
1 Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi 221 005, IN
1 Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi 221 005, IN
Source
Current Science, Vol 114, No 01 (2018), Pagination: 19-21Abstract
As a science, the subject of ecology is relatively young, although India’s ecological concerns are ischolar_mained deep in our civilization as evidenced in Vedic literature. In the modern context, the subject has grown enormously and many potential areas have been identified. However, there are still a number of challenges and knowledge gaps. A symposium was organized to address these issues which was attended by about 250 delegates from all over the country.Full Text
- Changes in pmoA Gene Containing Methanotrophic Population and Methane Oxidation Potential of Dry Deciduous Tropical Forest Soils
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PDF Views:78
Authors
Affiliations
1 Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi 221 005, IN
1 Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi 221 005, IN
Source
Current Science, Vol 118, No 5 (2020), Pagination: 750-758Abstract
In natural ecosystems such as forests topographical gradients, species composition variability and seasonality, are the potential drivers of methane (CH4) metabolism, and thus, of the population size and activities of methane oxidizing bacteria (MOB). To test the hypothesis that topography, tree species and seasonal variability influence MOB population and soil methane oxidation potential (MOP), we conducted two consecutive years of study selecting three sites in a dry deciduous tropical forest in Chandauli district of eastern Uttar Pradesh, India. The qPCR results showed a large variation in MOB population size (copies g−1 dws), ranging from 1.0 × 106 to 2.1 × 107 and 9.0 × 105 to 2.2 × 107 during 2016 and 2017 respectively. The distribution of MOB population revealed the trend: hilltop > middle > hillbase with its maxima in the winter and minima in the rainy season. Laboratory incubation study revealed a similar trend in soil MOP (ng CH4 g−1 h−1 dws), it varied from 10.6 to 20.6 and 10.5 to 20.7 during 2016 and 2017 respectively. The outer canopy soils showed lower MOB population and MOP compared to under canopy soils of tree species Butea monosperma, Madhuca indica and Tectona grandis during both years of study. The topography, season and tree species significantly influenced the MOB population size and MOP. Soil MOP showed a highly significant correlation (r = 0.89; p < 0.01) with MOB population, and a negative correlation was found with soil moisture (r = 0.76; p < 0.01). The results indicate that the dry deciduous tropical forest soils are potential sinks of atmospheric CH4 wherein, the MOB population characteristically responds to topographical changes, tree species and seasonal shifts driving collectively the overall MOP of forest soils.Keywords
Methanotrophs, Topography, Season, Tree Species, Tropical Dry Deciduous Forest.Full Text
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- Spreading of Antimicrobial Resistance in Agro-Ecosystems : Urgent Need of Assessment
Abstract Views :105 |
PDF Views:69
Authors
Affiliations
1 Department of Botany, Banaras Hindu University, Varanasi 221 005, IN
2 School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar 751 024, IN
1 Department of Botany, Banaras Hindu University, Varanasi 221 005, IN
2 School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar 751 024, IN
Source
Current Science, Vol 124, No 3 (2023), Pagination: 287-288Abstract
No Abstract.Keywords
No Keywords.Full Text
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