Mosquitoes act as a vector to transmit the life threatening diseases to humans. Mosquito control ... more Mosquitoes act as a vector to transmit the life threatening diseases to humans. Mosquito control and management practice have played an essential role in the significant reduction of mosquito-borne diseases. The present study is focusing on the mapping of filariasis vector surveillance in urban environment (Tiruchirappalli City Corporation) and forest environment (Sitheri Hills) using remote sensing and GIS techniques. The study in urban environment reveals that the presences of risk occurrence of diseases like malaria, chikungunya and dengue. At Sitheri Hills the highest number of mosquito species was observed due to the presence of more number of mosquito breeding sites. Moreover, spatial analysis and entomological study results show that the people were affected by lymphatic filariasis. Therefore, the study concludes that the monitoring and controlling of filariasis vector are needed to solve public health problems.
Wetland contributes to human well-being and poverty alleviation. The increase in human population... more Wetland contributes to human well-being and poverty alleviation. The increase in human population leads to more demand for water and degradation of the water bodies around the globe, resulting in scarcity of water. The aim of the present study was to assess the impact of anthropogenic activity on the water quality of the Loktak lake. Water samples were collected seasonally, namely, monsoon, post monsoon, winter and pre-monsoon, during 2013-2014 from 10 sites. For each water sample, 20 physicochemical parameters were analysed using the American Public Health Association method. Furthermore, 11 significant parameter values were used to develop the water quality index (WQI). The result shows high concentrations of nitrite (5.45-11.83 mg/l) and nitrate (93.67-177.75 mg/l) in rivers which is beyond the permissible limit and higher compared to the Loktak. Highest turbidity was observed at Langthabal with 21 NTU, which is above the permissible limit. The WQI of the Loktak ranged from 64 to 77, while for rivers they ranged from 53 to 95, which indicates that the water is in a very poor state. The WQI values of rivers are higher compared with those of the lake, and it was identified that water from the rivers is a major reason for increase in pollution in the lake water. The study suggests the need for long-term monitoring of the lake aquatic ecosystem and identification of pollution sites for proper management of the lake water. The WQI is an important tool to enable the public and decision makers to evaluate the water quality of the Loktak lake.
Isozyme studies provide preliminary indications that genetic variation may be differently apporti... more Isozyme studies provide preliminary indications that genetic variation may be differently apportioned in some crops compared to their wild relatives. The present investigation was undertaken to study the Isozyme banding patterns and its inheritance in rice with an aim to establish the genetic diversity among the 9 cultivated and wild rice species of Manipur. The indigenous rice collections were subjected to analysis of Isozyme polymorphism at three loci by Polyacrylamide gel electrophoresis. Zymograms of all the tested enzyme system (esterase, alcohol dehydrogenase, glutamate dehydrogenase) were then constructed, genetic relationships between the nine varieties on the number of loci at which Isozyme pattern differs were determined. In all the enzyme systems studied, only one zone of isozymatic activity defined by the degree of mobility could be observed. Maximum number of bands was observed in Taothabi and Wainuchara (O. rufipogon) local collection I in comparison to other germplasm...
The analysis of variance revealed considerable variation among the cultivars and the wild species... more The analysis of variance revealed considerable variation among the cultivars and the wild species for yield and other quantitative characters in both the years of investigation. The highly significant differences among the cultivars in year wise and pooled analysis of variance for all the 12 characters reveal that there are enough genetic variabilities for all the characters studied. The existence of genetic variability is of paramount importance for starting a judicious plant breeding programme. Since introduced high yielding rice cultivars usually do not perform well. Improvement of indigenous cultivars is a clear choice for increase of rice production. The genetic variability of 37 rice germplasms in 12 agronomic characters estimated in the present study can be used in breeding programme
Aberrantly expressed PTEN-induced putative kinase 1 (PINK1) is a mitochondrial serine/threonine-p... more Aberrantly expressed PTEN-induced putative kinase 1 (PINK1) is a mitochondrial serine/threonine-protein kinase and are found to be responsible for various disease etiologies such as heart failure and Parkinson’s disorder. It is encoded by the PINK1 gene. PINK1 mutation is found to be one among the various diverse etiologies causing Parkinson’s disorder. Researchers found that absence of a protein PINK1 affects heart cells. It causes heart cell to produce less energy. Due to insufficiency of energy in the heart cell, some of the cells die. This puts a pressure on other remaining cells to work harder to compensate the effect to cell death and to keep the heart going. Due to this emphasis on a few heart muscle cells, it becomes dense. These kinds of changes and stress on heart muscle cells, leads to a functional degradation in turn lead to heart failure. Seeing the causes and lack of pharmacotherapeutic perspective, this study aims at studying the physicochemical characterization of th...
Rice is life for Asians and Indians in particular. The studies of rice germplasms are essential f... more Rice is life for Asians and Indians in particular. The studies of rice germplasms are essential for identification of rice cultivator for producing new hybrid varieties. Thirtyseven rice germplasms consisting of thirty-five indigenous rice including three wild rice varieties Oryza rufipogon local collection I, II and III from Manipur and two wild rice O. rufipogon and O. nivara were studied during the present investigation. Morphoqualitative and numerical taxonomic analyses were used to classify rice cultivars on the basis of phenotypic traits. Dendrogram was generated for the Euclidian distance, phenotypically all the cultivars were classified into different groups based on morphoqualitative characters. Possession of primary green colour is considered the most advanced form and thus occupy top position in the evolutionary sequence of the all the 37 germplasms. Anthocyanin pigmentation, in the present studies, varied from completely non-pigmented (green) to pigmented in, as many as ...
The present paper deals with the study of Nucleogenesis and nucleolar behavior during microsporog... more The present paper deals with the study of Nucleogenesis and nucleolar behavior during microsporogenesis of Rheo discolor using silver- nucleolar organizer regions (NOR) staining technique. It is observed that only one nucleolar organizer regions is present in each genome of R. discolor and NORs are achieved during the Pre-meiotic and meiotic stages. It is observed that common pattern of nucleolar activity is not conserved in the present plants and process of nucleogenesis is similar in both mitotic and meiotic cell divisions.
There is a need for accurate and timely information about forest resources and its changes for su... more There is a need for accurate and timely information about forest resources and its changes for sustainable conservation practices. The present study evaluates forest ecology and its changes in Pachamalai reserve forest using remote sensing and geographic information system. Comprehensive analysis of the satellite imageries where performed at ArcGIS 2010 imagines to understand the changes of landscape ecology over the period of the past 15 years from 1998 to 2012. The study area covers a total geographical area of 525.23 km2. Different types of thematic layers were generated using vis-ual image interpretation techniques at ArcGIS 2010 envi-ronment. Accuracy assessment was made using GPS data and ground truth verifications.The forest area was classified into different classes such as evergreen, semi evergreen, dry every green, southern thorn and dry mixed deciduous forest, non forest area and wasteland. The total raise in forest cover is 5.56 km2 within the geographical area. Forest c...
Geographical Indication is a name or sign used to protect certain products which are located in g... more Geographical Indication is a name or sign used to protect certain products which are located in geographical specific or origin within the frame work of Intellectual property. The aim of this study is to provide an overview and importance of geographical Indication on the traditional products under the Indian GI and also to provide awareness among the people on the importance of it in social upliftment for rural development. The study highlighted the present status of the GI registration in India and general information for filling a GI.
A land resource plays a significant role to understand the interactions between human activities ... more A land resource plays a significant role to understand the interactions between human activities and environmental sustainability. This study was investigated to assess the land use /land cover changes in Pachamalai reserved forest, a part of Eastern Ghats situated in Tamil Nadu. To solve the purpose multi-dated satellite images were used for analysis during the period of 15 years (1998–2012). Different types of thematic layers were generated using visual image interpretation techniques using ERDAS imagine and thematic maps were prepared at ArcGIS environment. Accuracy assessment was made using GPS data and ground truth verifications. Land use/land cover changes were observed that the forest area (5.56 km²) settlement (7.94 km²) and crop land (12.76 km²) increased, while area under waste land decreases by 26.26 km². Waste land has been converted into forest, settlement, crop land and was inversely proportional with other LU/LC classes. The conversion of wasteland to forest land show...
Rice is an integral part of culture and tradition in Manipur. Manipur valley which is considered ... more Rice is an integral part of culture and tradition in Manipur. Manipur valley which is considered as a rice bowl of the state is bestowed with an array of traditional rice cultivars with medicinal, aromatic and nutraceutical properties. The wealth of Manipur in terms of local rice germplasms is threatened by the rapid spread of newly developed improved rice varieties. Old and obscure rice varieties are being rapidly replaced by new ones in many areas. Primitive and wild forms are being wiped out by land clearing associated with irrigation and drainage projects, housing and urbanization etc. for several decades, it was taken for granted that diverse rice germplasms were readily available in the native habitats of the crop. However, the gradual widespread disappearance of the diverse and less productive indigenous land races by replacement with improved cultivators went on unnoticed. It is in this context that scientists, particularly the plant breeders, of the state started giving their thought with all seriousness for the conservation of local rice germplasms. Realizing the importance, attempts were made for collection, varietal descriptions and cataloguing of local rice germplasms of Manipur. The paper throws light on a general survey of the indigenous rice biodiversity available in the state and its conservation for the welfare of mankind
The present study evaluated the knowledge about environmental education among the students group ... more The present study evaluated the knowledge about environmental education among the students group from class 6 to 12 during 2007-2008 with around 1200 participants from five schools of Manipur. In the study, the students were educated about the local bioresources of the regions and their importance to the environment. The increase in the anthropogenic activity in the name of development in the last few decades has decline a number of known and unknown species of the region. In order to safeguard the rich resources for the generation to come, the role of younger generation is the need of the time and a proper environmental education will be a boon for conservation efforts in the region. The result from the study is very positive as from feedbacks given by the students and the schools authority emphasized on promotion the feelings of concern for the environment, development of awareness and sensitivity to the total environment. The results also revealed that these students had favorabl...
Mosquitoes act as a vector to transmit the life threatening diseases to humans. Mosquito control ... more Mosquitoes act as a vector to transmit the life threatening diseases to humans. Mosquito control and management practice have played an essential role in the significant reduction of mosquito-borne diseases. The present study is focusing on the mapping of filariasis vector surveillance in urban environment (Tiruchirappalli City Corporation) and forest environment (Sitheri Hills) using remote sensing and GIS techniques. The study in urban environment reveals that the presences of risk occurrence of diseases like malaria, chikungunya and dengue. At Sitheri Hills the highest number of mosquito species was observed due to the presence of more number of mosquito breeding sites. Moreover, spatial analysis and entomological study results show that the people were affected by lymphatic filariasis. Therefore, the study concludes that the monitoring and controlling of filariasis vector are needed to solve public health problems.
Wetland contributes to human well-being and poverty alleviation. The increase in human population... more Wetland contributes to human well-being and poverty alleviation. The increase in human population leads to more demand for water and degradation of the water bodies around the globe, resulting in scarcity of water. The aim of the present study was to assess the impact of anthropogenic activity on the water quality of the Loktak lake. Water samples were collected seasonally, namely, monsoon, post monsoon, winter and pre-monsoon, during 2013-2014 from 10 sites. For each water sample, 20 physicochemical parameters were analysed using the American Public Health Association method. Furthermore, 11 significant parameter values were used to develop the water quality index (WQI). The result shows high concentrations of nitrite (5.45-11.83 mg/l) and nitrate (93.67-177.75 mg/l) in rivers which is beyond the permissible limit and higher compared to the Loktak. Highest turbidity was observed at Langthabal with 21 NTU, which is above the permissible limit. The WQI of the Loktak ranged from 64 to 77, while for rivers they ranged from 53 to 95, which indicates that the water is in a very poor state. The WQI values of rivers are higher compared with those of the lake, and it was identified that water from the rivers is a major reason for increase in pollution in the lake water. The study suggests the need for long-term monitoring of the lake aquatic ecosystem and identification of pollution sites for proper management of the lake water. The WQI is an important tool to enable the public and decision makers to evaluate the water quality of the Loktak lake.
Isozyme studies provide preliminary indications that genetic variation may be differently apporti... more Isozyme studies provide preliminary indications that genetic variation may be differently apportioned in some crops compared to their wild relatives. The present investigation was undertaken to study the Isozyme banding patterns and its inheritance in rice with an aim to establish the genetic diversity among the 9 cultivated and wild rice species of Manipur. The indigenous rice collections were subjected to analysis of Isozyme polymorphism at three loci by Polyacrylamide gel electrophoresis. Zymograms of all the tested enzyme system (esterase, alcohol dehydrogenase, glutamate dehydrogenase) were then constructed, genetic relationships between the nine varieties on the number of loci at which Isozyme pattern differs were determined. In all the enzyme systems studied, only one zone of isozymatic activity defined by the degree of mobility could be observed. Maximum number of bands was observed in Taothabi and Wainuchara (O. rufipogon) local collection I in comparison to other germplasm...
The analysis of variance revealed considerable variation among the cultivars and the wild species... more The analysis of variance revealed considerable variation among the cultivars and the wild species for yield and other quantitative characters in both the years of investigation. The highly significant differences among the cultivars in year wise and pooled analysis of variance for all the 12 characters reveal that there are enough genetic variabilities for all the characters studied. The existence of genetic variability is of paramount importance for starting a judicious plant breeding programme. Since introduced high yielding rice cultivars usually do not perform well. Improvement of indigenous cultivars is a clear choice for increase of rice production. The genetic variability of 37 rice germplasms in 12 agronomic characters estimated in the present study can be used in breeding programme
Aberrantly expressed PTEN-induced putative kinase 1 (PINK1) is a mitochondrial serine/threonine-p... more Aberrantly expressed PTEN-induced putative kinase 1 (PINK1) is a mitochondrial serine/threonine-protein kinase and are found to be responsible for various disease etiologies such as heart failure and Parkinson’s disorder. It is encoded by the PINK1 gene. PINK1 mutation is found to be one among the various diverse etiologies causing Parkinson’s disorder. Researchers found that absence of a protein PINK1 affects heart cells. It causes heart cell to produce less energy. Due to insufficiency of energy in the heart cell, some of the cells die. This puts a pressure on other remaining cells to work harder to compensate the effect to cell death and to keep the heart going. Due to this emphasis on a few heart muscle cells, it becomes dense. These kinds of changes and stress on heart muscle cells, leads to a functional degradation in turn lead to heart failure. Seeing the causes and lack of pharmacotherapeutic perspective, this study aims at studying the physicochemical characterization of th...
Rice is life for Asians and Indians in particular. The studies of rice germplasms are essential f... more Rice is life for Asians and Indians in particular. The studies of rice germplasms are essential for identification of rice cultivator for producing new hybrid varieties. Thirtyseven rice germplasms consisting of thirty-five indigenous rice including three wild rice varieties Oryza rufipogon local collection I, II and III from Manipur and two wild rice O. rufipogon and O. nivara were studied during the present investigation. Morphoqualitative and numerical taxonomic analyses were used to classify rice cultivars on the basis of phenotypic traits. Dendrogram was generated for the Euclidian distance, phenotypically all the cultivars were classified into different groups based on morphoqualitative characters. Possession of primary green colour is considered the most advanced form and thus occupy top position in the evolutionary sequence of the all the 37 germplasms. Anthocyanin pigmentation, in the present studies, varied from completely non-pigmented (green) to pigmented in, as many as ...
The present paper deals with the study of Nucleogenesis and nucleolar behavior during microsporog... more The present paper deals with the study of Nucleogenesis and nucleolar behavior during microsporogenesis of Rheo discolor using silver- nucleolar organizer regions (NOR) staining technique. It is observed that only one nucleolar organizer regions is present in each genome of R. discolor and NORs are achieved during the Pre-meiotic and meiotic stages. It is observed that common pattern of nucleolar activity is not conserved in the present plants and process of nucleogenesis is similar in both mitotic and meiotic cell divisions.
There is a need for accurate and timely information about forest resources and its changes for su... more There is a need for accurate and timely information about forest resources and its changes for sustainable conservation practices. The present study evaluates forest ecology and its changes in Pachamalai reserve forest using remote sensing and geographic information system. Comprehensive analysis of the satellite imageries where performed at ArcGIS 2010 imagines to understand the changes of landscape ecology over the period of the past 15 years from 1998 to 2012. The study area covers a total geographical area of 525.23 km2. Different types of thematic layers were generated using vis-ual image interpretation techniques at ArcGIS 2010 envi-ronment. Accuracy assessment was made using GPS data and ground truth verifications.The forest area was classified into different classes such as evergreen, semi evergreen, dry every green, southern thorn and dry mixed deciduous forest, non forest area and wasteland. The total raise in forest cover is 5.56 km2 within the geographical area. Forest c...
Geographical Indication is a name or sign used to protect certain products which are located in g... more Geographical Indication is a name or sign used to protect certain products which are located in geographical specific or origin within the frame work of Intellectual property. The aim of this study is to provide an overview and importance of geographical Indication on the traditional products under the Indian GI and also to provide awareness among the people on the importance of it in social upliftment for rural development. The study highlighted the present status of the GI registration in India and general information for filling a GI.
A land resource plays a significant role to understand the interactions between human activities ... more A land resource plays a significant role to understand the interactions between human activities and environmental sustainability. This study was investigated to assess the land use /land cover changes in Pachamalai reserved forest, a part of Eastern Ghats situated in Tamil Nadu. To solve the purpose multi-dated satellite images were used for analysis during the period of 15 years (1998–2012). Different types of thematic layers were generated using visual image interpretation techniques using ERDAS imagine and thematic maps were prepared at ArcGIS environment. Accuracy assessment was made using GPS data and ground truth verifications. Land use/land cover changes were observed that the forest area (5.56 km²) settlement (7.94 km²) and crop land (12.76 km²) increased, while area under waste land decreases by 26.26 km². Waste land has been converted into forest, settlement, crop land and was inversely proportional with other LU/LC classes. The conversion of wasteland to forest land show...
Rice is an integral part of culture and tradition in Manipur. Manipur valley which is considered ... more Rice is an integral part of culture and tradition in Manipur. Manipur valley which is considered as a rice bowl of the state is bestowed with an array of traditional rice cultivars with medicinal, aromatic and nutraceutical properties. The wealth of Manipur in terms of local rice germplasms is threatened by the rapid spread of newly developed improved rice varieties. Old and obscure rice varieties are being rapidly replaced by new ones in many areas. Primitive and wild forms are being wiped out by land clearing associated with irrigation and drainage projects, housing and urbanization etc. for several decades, it was taken for granted that diverse rice germplasms were readily available in the native habitats of the crop. However, the gradual widespread disappearance of the diverse and less productive indigenous land races by replacement with improved cultivators went on unnoticed. It is in this context that scientists, particularly the plant breeders, of the state started giving their thought with all seriousness for the conservation of local rice germplasms. Realizing the importance, attempts were made for collection, varietal descriptions and cataloguing of local rice germplasms of Manipur. The paper throws light on a general survey of the indigenous rice biodiversity available in the state and its conservation for the welfare of mankind
The present study evaluated the knowledge about environmental education among the students group ... more The present study evaluated the knowledge about environmental education among the students group from class 6 to 12 during 2007-2008 with around 1200 participants from five schools of Manipur. In the study, the students were educated about the local bioresources of the regions and their importance to the environment. The increase in the anthropogenic activity in the name of development in the last few decades has decline a number of known and unknown species of the region. In order to safeguard the rich resources for the generation to come, the role of younger generation is the need of the time and a proper environmental education will be a boon for conservation efforts in the region. The result from the study is very positive as from feedbacks given by the students and the schools authority emphasized on promotion the feelings of concern for the environment, development of awareness and sensitivity to the total environment. The results also revealed that these students had favorabl...
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