A Review on Curing of Onions Traditional gathering of Wild Vegetables used by local inhabitants of Theni district, Tamilnadu, India
P. Packiaraj, K. Suresh, and P. Venkadeswaran
MS No.ijbt151214102
Diversity of macrobenthic populations in Ramsagar reservoir: ecological determinant and taxonomic positions
R.K. Garg, R.J. Rao and D.N. Saksena
MS No.ijbt151214104
Studies on the impact of organic farming on physico-chemical and microbial properties of soil
T.M. Jothimani, A. Saravanakumar, R. Ravikumar
MS No.ijbt151214105
Development Of Molecular Markers For The Study Of Fish Fauna Of Manimala River Of Kerala, India
Mathews Plamoottil, Nelson P. Abraham and Sanil George
MS No.ijbt151214106
Biodiversity of Cyanobacteria in Manakudy estuary, Southwest coast of Tamilnadu, India
T. Nagarajan, G. Santhanakumar, R. Asirselin Kumar and A. Babu
MS No.ijbt151214101
Karyotypic Descriptions of Five Cyprinid Fish Species from Western Ghats, India
N. Agnes Flora, M. Raja and M. Arunachalam
MS No.ijbt151214103
Phycochemistry and Anti Bacterial activity of Freshwater Green Algae Nitella tenuissima (Desv.) Kiitz
S. Hilda, Sheeja S Sivaprasad and G.Rani
MS No.ijbt151214107
Volume No.5(3) December,2014
Table and Contents
Abstract
An ethnobotanical inventory was conducted in the rural areas of Theni district, Tamilnadu, India, during 2013-2014 following standard ethnobotanical methods for documentation of underexploited, non-conventional, traditional and indigenous wild vegetables for further studies leading to sustainable utilization of these resources to overcome malnutrition in vegetarian diet. During present study 19 species belonging to 18 genus and 15 families have been documented. Chenopodium album is the most common and popularly used wild vegetable followed by Ipomoea aquatica and Coccinea grandis in the study area. Seven species are reported as wild vegetable for the first time in India. Leaves and young stem are used in majority of the cases. Only 56% wild vegetables used in the study area are easily available, it means 44% wild vegetables are threatened to be lost if not conserved properly. The highly endangered wild vegetables in the study area are Abrus precatorius, Centella asiatica and Solanum nigram.
Key words: Wild vegetables, Rural communities, Ethnobotany, Theni District
Citation: Packiaraj,P., Suresh,K. and Venkadeswaran, P. 2014. A Review on Curing of Onions Traditional gathering of Wild Vegetables used by local inhabitants of Theni district, Tamilnadu, India. Int.J.Biol.Technology,5(3):9-13
Abstract
In coastal and estuarine waters, there were algae ranges from single-celled forms to the seaweeds. Cyanobacteria are algal organisms with some characteristics of bacteria. The spatial and seasonal patterns of distribution of Cyanobacterial species and their abundance in relation to physicochemical parameters were studied during March, 2012 to February 2013 from six stations of Manakudy estuary situated on the southwest coast of India, it has a total area of about 150ha, extending over 2Km and is located between 08o 04’N and 77o 26’E longitude. In the present study 31 species of Cyanobacteria from 17 genera were obtained from the study sites. Among these 31 species belong to 17 genera. Maximum 26 species of 15 genera were recorded from station 3 followed by 24 species belonging 14 genera, 21 species belonging 14 genera, 16 species belonging 10 genera, 14 species belonging 9 genera and 12 species belonging 7 genera in station 2, station 4, station 1, station 5 and station 6 respectively.
Key words: Cyanobacteria, Manakudy, Estuary, Air temperature, Water temperature
Citation: Nagarajan, T., Santhanakumar, G., Asirselin Kumar, R. and Babu, A. 2014. Biodiversity of Cyanobacteria in Manakudy estuary, Southwest coast of Tamilnadu, India. Int.J.Biol.Technology,5(3):1-8.
Abstract The karyotypic and cytological characteristics of five native cyprinid fishes of Western Ghats of peninsular India were investigated by examining the metaphase chromosomes spreads obtained by Giemsa staining method. The diploid chromosome numbers of Barilius canarensis, Chela fasciatus Puntius conchonius and Garra mullya were 2n=50 and Osteochilichthys nashii has 2n=48. Chromosome number of Puntius conchonius and Garra mullya is in agreement with the previous published work but with different chromosome formula. This is the first report of karyotypic information on these species such as Barilius canarensis, Chela fasciatus and Osteochilichthys nashii from Western Ghats, Ideogram was prepared for each species by measuring the chromosome. The results may be useful for population study, taxonomic problems and conservation of this native fishes.
Keywords: Cyprinid fishes- Chromosome- Karyotyping- Western Ghats.
Abstract The structure of benthic community in Ramsagar reservoir was studied in two distinct periods of two years comprised between April, 2003 to March, 2005 which contains the results of an investigation of the relationships between the environmental variables and the taxonomic diversity of common and important groups of benthic macrofauna i.e., Oligochaeta, Hirudinea, Decapoda, Diptera, Hemiptera, Coleoptera, Gastropoda and Pelecypoda. Nutrient and other limnological parameters i.e., water temperature, transparency, electrical conductivity, pH, free carbon dioxide, total alkalinity, total hardness, chloride, calcium, nitrate-nitrogen, phosphates analyses revealed that the reservoir is in advanced eutrophication process and categorized as mesotrphic water body and most important factors controlling the distribution and abundance of the benthic fauna in the reservoir. Bottom fauna of the reservoir was composed by 32 invertebrate species, belonging to the following faunistic groups: Oligochaeta, Hirudinea, Decapoda, Diptera, Hemiptera, Coleoptera, Gastropoda and Pelecypoda. The majority of species showed low densities, being that the gastropoda formed the most important components of benthos densities followed by oligochaetes, whereas, Vivipara dissimilis was the dominant taxa, representing 14.04% (2003-04) and 10.02% (2004-05) of total benthos. Comparing both periods, major densities were registered in dry season for most of the taxa. Cluster analysis revealed population densities as group wise distribution which shows relation of the group in which group gastropoda is not related with other group and gone away from other groups. The actual structure of benthic community in Ramsagar reservoir is probably a consequence of the advanced state of environmental degradation.
Keywords: Benthic macroinvertebrates, biodiversity indices, eutrophication, biodiversity, threats to biodiversity.
Abstract
Soil health was a key founding principle for the development and practice of organic farming. Such farming practices, combined with the proper management of the farm and concurrently available renewable resources, can result in the rejuvenation of the soils and sustainable, improved crop productivity. Effective use of farmyard manure, vermicompost and organic liquids are a key to nutrient cycling on organic farms. These organic fertilizers enhance the soil physical, chemical and microbial properties, so that it can become a potential alternative to conventional farming systems. The present study assesses the impacts on soil macro and micronutrients of organic farming. It also identifies and assesses soil processes regulated by microbes under organic and conventional management practices. Our findings supports the view that organically treated soil (OS) activates the growth of microorganisms as compared with conventionally used synthetic chemical fertilizers. This enrichment of microbes possibly leads to the enhanced level of soil organic carbon, soil organic nitrogen, and microbial biomass in OS.
Keywords: Soil health; vermicompost; organic liquids
Abstract
Molecular level Studies on the freshwater fishes of Kerala is posed a difficulty due to the non availability of molecular markers. In the present paper we describe the development of Cyt b gene sequences of some of the freshwater fishes of Manimala River of Kerala. A total of 16 cyt b sequences were generated in which 37 % of the sequences are deposited for the first time in GenBank. Neighbor joining tree along with the K2P genetic distance were also provided. This may be useful as a baseline data for further studies on the fish fauna of Kerala Rivers.
Key words: Manimala River, fish taxonomy, molecular markers, mitochondrial DNA, cyt b gene sequence
Abstract
Antibacterial activity of stonewort green macro alga, Nitella tenuissima (Desv.) Kiitz was studied in five different solvents viz., methanol, ethanol, ethyl acetate, chloroform and distilled water against four human pathogenic bacteria Staphylococcus aureus, Bacillus cereus, Streptococcus mutans, Citrobacter koseri by two different methods viz., agar well diffusion method and paper disc method. A preliminary phycochemical screening for protein, carbohydrate, total chlorophyll and total phenol content estimation were also studied in all the algal extract. The results showed that the methanolic extract of Nitella tenuissima (Desv.) Kiitz recorded appreciable anti bacterial activity. The zone of inhibition in methanol extract of disc method was 20 mm (against Staphylococcus aureus and Bacillus cereus) and 20 & 28 mm in methanol & ethyl acetate of well diffusion method respectively (against Staphylococcus aureus). Among the algal extracts studied, the methanol extracts registered high zone of inhibition against all the bacterial strain tested in both the methods.
Keywords: Nitella tenuissima (Desv.) Kiitz, Phycochemical, Antibacterial activity, Freshwater, Macro algae, Methanoilic extract.
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