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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Ethnomedical value of plants in Nagapattinam district of Tamil Nadu, India

100%
Vinoth B., Manivasagaperumal R.
International Letters of Natural Sciences
|
2014
|
tom 12
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nr 2
The present survey was undertaken to explore the traditional knowledge of plant species found in four villages (Athamangalam, Vadukkuveli, Thalainayar and Perumangalam) in Sirkali taluk of Nagapattinam district, Tamilnadu state, The ethnomedicinal information was collected through oral interviews to village elders and vaidyas (those who cure disease by traditional methods) of the rural areas of this district. The knowledge available to the rural population of the area is transmitted only through oral language from generation to generation over time and therefore it needs to be recorded in order to be preserved. Medicinal plants are listed by botanical name, family name, local name, plant parts used and mode of preparation and the names of the diseases cured. About 50 plant species belonging to 27 families were described as effective herbal drugs for various ailments. The documented ethnobotanical uses of plants mostly related to the treatment in curing stomach pain, breast pain, headache, bleeding, yellow fever, muscle pain and blood purifier.
2
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Occurrence of microcystis aeruginosa Kutz. water blooms in a eutrophic pond of Chidambaram taluk

100%
Elayaraj B., Selvaraju M.
International Letters of Natural Sciences
|
2015
|
tom 47
The occurrence and abundance of Microcystis aeruginosa were monitored monthly in eutrophic pond water of Ilamiyakkinar temple pond from July 2014 to June 2015. Some environmental factors such as water temperature, pH, free carbon-dioxide (FCO2), total alkalinity, Dissolved oxygen (DO2), biological oxygen demand (BOD), nitrate (NO2-N) and phosphate are recorded and their relationship with the bloom formation by Microcystis aeruginosa were discussed. The initiation and persistence of Microcystis aeruginosa were founded to be triggered by relatively high water temperature (24 °C to 36.5 °C), pH (7.3 to 8.72) and NO2-N concentration.
3
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Coastal processes of Central Tamil Nadu, India: clues from grain size studies

100%
Angusamy N., Rajamanickam G. V.
Oceanologia
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2007
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tom 49
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nr 1
The sediments of the beaches along the central coast of Tamil Nadu from Pondicherry to Vedaranyam were studied for their textural variation. 108 sediment samples collected from the low-, mid-, and high-tidal zones, as well as the berms and dunes of different beach morpho-units were analysed. The study area was divided into three sectors (northern, central and southern) on the basis of prevailing energy conditions and oceanographic parameters. The poorly sorted, negatively skewed, coarser sediments of the northern sector are indicative of denudational processes taking place there. Medium-to-fine, moderately-to-well sorted, positivesymmetrically skewed sediments dominate the central sector, probably as a result of the influence of palaeo-sediments deposited by rivers from inland as well as by waves and currents from offshore. Fine, poorly sorted, positive-symmetrically skewed sediments dominate the southern sector, highlighting depositional processes. Linear Discriminant Function Analysis (LDF) of the samples indicates a shallow marine environment origin for all the three sectors. These results show that reworked sediments, submerged during the Holocene marine transgression, are being deposited on present-day beaches by waves, currents and rivers in the study area.
4
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Documentation of traditional knowledge of herbal plant in Kalvarayan Hills, Vallupuram District, Tamil Nadu

84%
Nithyadevi J., Sivakumar R.
International Letters of Natural Sciences
|
2014
|
tom 07
The study was carried out to assess the traditional knowledge of herbal plants in a Kalvarayan Hills, Villupuram District, Tamil Nadu. It was carried out through face to face interview with respondent, collection and identification of herbal plants in the hills. A total number of 60 species of herbal plants were recorded during a series of folk botanical surveys at a hill at Villupuram District, Tamil Nadu. A majority of these species are herbaceous angiosperms, followed by trees and shrubs. The most common part of the plant used in preparing for herbal medicine is the bark, leaves, roots, stem, flowers, and fruits. Mostly the plants are used for general health, to treat dermatological complaints, reproductive system, abdominal problems and fever compared to other ailments. The most common method of herbal preparation is poultice, followed by decoction and infusion. Thus, more medicinal plants are used topically than orally.
5
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Ethnoveterinary practices in Villupuram district, Tamil Nadu, India

84%
Dhanam S., Elayaraj B.
International Letters of Natural Sciences
|
2014
|
tom 19
Ayurvedic medicines are considered to be the best systems of treatment in India and this system is spreading now globally. Natural products are also a part of our everyday life. Ethno veterinary medicine is developed by farmers in field and barns rather than and in scientific laboratories. It is less systematic, less formalized and usually transferred by word of mouth rather than writing. An ethnobotanical survey was conducted in 10 selected sites of Villupuram district. Twenty six plant species belonging to fourteen families were documented in the present study, to cure different diseases in animals. Interviews and detailed personal discussions were conducted with the traditional healers and local people to identify the plants and their medicinal information for six months. The study revealed that the different parts of these plants were used for treatment of different diseases. Leaves are the mostly used part to prepare medicine.
6
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Ethnobotanical survey of medicinal plants in kalrayan hills, eastern Ghats, Tamil Nadu

84%
International Letters of Natural Sciences
|
2014
|
tom 12
|
nr 2
An ethnomedicinal survey among the kalrayan hills, Salem district, Tamil Nadu during September 2010 to February 2012. A total of 64 species of ethnomedicinal plants belonging to 34 families and 10 species of ethno veterinary plants belonging to 10 families were reported with the help of standard flora among local healers, village head man and elderly tribal persons. The medicinal plants used by village people, tribal and are arranged alphabetically followed by botanical name, family name, local and English name and their therapeutic uses.
7
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Biosystematics studies on the greens used by local inhabitants of Pothamalai Hills In, Namakkal District, Tamil Nadu, India

84%
Sathiyaraj G., Kumuthakalavalli R.
International Letters of Natural Sciences
|
2014
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tom 11
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nr 1
The present study mainly focuses on the ethno-botanical importance of greens, used by the Pothamalai, Puduppatti, Vadugam, Malaiyampatti, Seerappalli and Rasipuram local people in Namakkal districts. From this investigation 25 species of green belonging to19 genera and 13 families are recorded. This information regarding on correct botanical identity with family, vernacular name, systematic description and medicinal uses was observed. During the survey brought out some popular medicinal plants frequently used by the local villagers for minor ailments such as felt by the respondents were greens are good for health, increase the blood level, clear vision, to cure sore in the stomach and mouth, prevent the jaundice, cure the heart diseases, release the knees pain, and sugar disorder. The greens are good food for children and give essential nutrient for pregnant women.
8
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Studies on some physico-chemical parameters of cyanophycean members and correlation coefficient of eutrophic ponds in Chidambaram, Tamil Nadu, India

84%
Elayaraj B., Selvaraju M.
International Letters of Natural Sciences
|
2014
|
tom 11
|
nr 2
The present study deals with the statistical analysis of physico-chemical parameters and cyanophycean members of two pond water quality of Chidambaram, Cuddalore district (Tamil Nadu). The qualities of pond water were analyzed for six months. Eleven important parameters were included in statistical analysis. The qualities of pond water have been assessed by calculating mean, standard deviation and correlation coefficient. Correlation studies of hydrobiology with physico-chemical parameters revealed that the relationship between phytoplankton density in general and that of the specific groups are highly complex and often controlled by interactions of different factors. In the both pond water the correlation coefficient test revealed that cyanophycean members positively correlated with temperature, pH, CO2, alkalinity, hardness, nitrate, BOD and COD at 1 % and 5 % level significant, where as it is negatively correlated with acidity and dissolved oxygen. In the present study it can be concluded that the cyanophycean members are highly tolerant organisms. They prefer to grow at higher temperatures and in highly alkaline, BOD and COD waters. Hence they can with stand high levels of contaminated waters of Thillai Kali Kovil pond, when compared to Ilamiyakkinar Kovil pond.
9
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Ethnomedicinal aspects of some weeds from paddy fields of Villupuram district in Tamil Nadu, India

84%
Dhanam S., Elayaraj B.
International Letters of Natural Sciences
|
2014
|
tom 14
The present investigation has been carried out to enumerate the ethnomedicinal plant growing in the paddy field of Villupuram district, Tamil Nadu. Ten selected sites in the Villupuram district was taken for investigation. Random quadrate method was adapted for studying the phytosociological attributes of the weeds. A total of 145 plant species belonging to 22 families were identified, out of which 39 plant species are medicinally important to cure different diseases in human beings directly. Amaranthaceae and Euphorbiaceae was the dominant family seen during observation. Frequency, Relative frequency, Density, Relative density, Abundance, Relative abundance and Important Value Index (IVI) of the species were calculated.
10
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Acute toxicity and Dose fixation studies on Chloroxylon swietenia Dc bark extracts on streptozotocin induced diabetic rats

84%
Jayaprasad B., Sharavanan P. S., Sivaraj R.
International Letters of Natural Sciences
|
2015
|
tom 48
Diabetes mellitus (DM) is a chronic metabolic disease with the highest rates of prevalence and mortality worldwide. Chloroxylon swietenia has been used extensively in folkloric medicine. The present study aims to determine the acute toxicity of Chloroxylon swietenia bark methanol (CSBMEt) and aqueous extracts (CSBAEt) (100, 150, 250, 500 and 1000 mg/kg body weight) and dose fixation of CSBMEt and CSBAEt in streptozotocin induced diabetic rats. Diabetes was induced in male albino wistar rats by single intraperitoneal injection of streptozotocin (50mg/kg b.w). The diabetic rats were administered with Chloroxylon swietenia bark extracts (CSBMEt and CSBAEt) (75,125 and 250mg/kg b.w) orally by intragastric intubation for 15 days. Acute toxicity studies revealed the non-toxic nature of the CSBMEt and CSBAEt. No lethality or toxic reactions found at any doses until the end of study, whereas 75 and 125 mg/kg b.w. doses of CSBMEt and CSBAEt produce no significant changes in the diabetic rats and 250mg/kg b.w. of CSBMEt and CSBAEt have significant change in the blood glucose. The results conclude that, there was no toxicity observed up to 1000mg/kg b.w. of both the extracts and 250mg/kg b.w. of CSBMEt and CSBAEt can be used as effective dose to treat diabetes.
11
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Distribution and composition of aquatic macrophytes in Santhapettai Lake of Villupuram district in Tamil Nadu

84%
Dhanam S., Elayaraj B.
International Letters of Natural Sciences
|
2015
|
tom 47
Macrophytes are important component of the aquatic ecosystem and broad changes in the abundance of individual species and community composition provide valuable information on how and why an ecosystem might be changing. Santhapettai lake is one of the biggest fresh water lake in Villupuram district, Tamil Nadu. The physico-chemical parameters were analysed for one year (October 2012-September 2013). Quadrates were laid randomly and extending from shoreline towards the lake center. The macrophytes falling in each quadrate were sorted species wise, identified and data were recorded. The plants have been identified from fresh materials with the help of different floras. In this present investigation, a total of 33 species belonging to 23 families and 28 genera were identified under algae, pteridophytes, dicotyledons and monocotyledons. Further, the plants were classified in morphological group as floating (7), submerged (1), submerged anchored (13), floating leaved (1) and emergent anchored (11). The coverage/spread of macrophytes along the shorelines was higher compared to the centre of the lakes where the species composition was found reduced. Assessment of biota, continuous monitoring and conservation lake are the important components to safeguard the biological wealth of lentic and lotic freshwater ecosystem.
12
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Activity pattern and food habits of Grizzled Giant Squirrel (Ratufa macroura) in Srivilliputhur Grizzled Squirrel Wildlife Sanctuary, Tamil Nadu, Southern India

84%
Babu Rao G., Nagarajan R., Saravanan M., Baskaran N.
International Letters of Natural Sciences
|
2015
|
tom 05
Activity pattern and food habits of Grizzled Giant Squirrel were investigated in Srivilliputhur Grizzled Giant Squirrel Wildlife Sanctuary from December 2011 to March 2012. Focal animal sampling method was used to record the activity pattern and food habits. Sampling was done in three different habitats viz., Private land, Reserve forest and Temple land. Feeding was the dominant activity accounting for 35.4% of the activity period. Bimodal feeding pattern was observed in Squirrels, the observations were made from early morning hours to till (0600-1800) late evening hours. The Squirrels feed upon 23 plant species; among them 11 were trees species, 10 climbers and 2 shrubs. Seven types of plant parts were used by Squirrels. Leaf consumption was high (38%) followed by fruit (24%). The high consumption of leaves was due to easy availability of leaves and limited availability of other plant parts. Squirrel‟s invasion into Private Land and Temple Land was observed which can be attributed to abundance and easy availability of food plants, canopy continuity and less predatory pressure.
13
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Dynamics of micro algae in relation to water quality parameters of pasupatheswarar temple pond, Annamalai Nagar, Tamil Nadu

84%
Elayaraj B., Selvaraju M.
International Letters of Natural Sciences
|
2015
|
tom 46
The current study deals with water quality variations and micro algal community structure in the highly eutrophic pond. Several water quality parameters were evaluated during the period from July 2014 to June 2015 from sampling station sited from Annamalai Nagar viz., Pasupatheswarar temple pond. The water quality parameters like Air and water temperature, turbidity, electrical conductivity, total dissolved solids, total alkalinity, pH, free carbon-dioxide, dissolved oxygen, biological oxygen demand (BOD), chemical oxygen demand (COD), calcium, magnesium, phosphate and nitrate were analysed. A total 29 species were observed during the study period of which 11 species from the class Cynophyceae, 9 species from the class Chlorophyceae, 6 species from the class Bacillariophyceae and 3 species from the class Euglenophyceae. Maximum species of the class Cyanophyceae were observed during study period. The Microcystis aeruginosa species observed in the pond indicates the signs of eutrophication of pond. The water quality parameters such as temperature, alkalinity, phosphate and nitrates are favourable for the growth of phytoplankton.
14

Prevalence of aflatoxin B1 contamination in pre- and post-harvest maize kernels, food products, poultry and livestock feeds in Tamil Nadu, India

67%
Vijayasamundeeswari A., Mohankumar M., Karthikeyan M., Vijayanandraj S., Paranidharan V., Velazhahan R.
Journal of Plant Protection Research
|
2009
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tom 49
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nr 2
221-224
Aflatoxins, a group of mycotoxins mainly produced by Aspergillus flavus and A. parasiticus, have adverse health effects on humans and livestock that ingest aflatoxin- contaminated food products and feeds. To secure the safety of food and feed, regular monitoring of aflatoxin levels is necessary. In order to understand the magnitude of aflatoxin contamination, a survey was conducted in different agro-ecological zones of Tamil Nadu, India and 242 samples consisting of pre- and post-harvest maize kernels, food products, poultry and livestock feeds were collected from farmers' fields, poultry farms, retail shops and supermarkets and analyzed for aflatoxin B1 (AFB1) contamination by enzyme- linked immunosorbent assay (ELISA) using antiserum raised against aflatoxin B1-Bovine serum albumin (AFB1-BSA). The results indicated that 61.3% of the maize kernel samples were contaminated with AFB1 and the levels of AFB1 in 26% of the pre- and post-harvest maize kernels exceeded 20 μg/kg. The highest level of AFB1 (245 μg/kg) was recorded in post-harvest maize kernel samples. In food products AFB1 was detected only in two samples out of 30 samples tested. Furthermore, the levels ranged from 0.6 to 3.7 μg/kg. In poultry feeds, AFB1 was detected in 30 out of 53 samples and the levels ranged from 0.7 to 31.6 μg/kg. Among the 40 livestock feed samples evaluated 29 samples were contaminated with AFB1 at level ranging from 1.8 to 244.9 μg/kg.
15
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Isolation and identification of vibrio sp. in the hepatopancreas of cultured white pacific shrimp (Litopenaeus vannamei)

67%
Shanmugasundaram S., Mayavu P., Manikandarajan T., Suriva M., Enswar A., Anbarasu R.
International Letters of Natural Sciences
|
2015
|
tom 46
The Vibrio is the most common genera with crustaceans often causing various diseases in Aquaculture and significant economic losses. Many Vibrio species are pathogenic to human and have been implicated in food borne diseases. The present study was carried out, the isolation and identification of pathogenic bacterial flora were isolated from infected in hepatopancreas of vannamei. The SPDS Oceanic farm, RS Aqua farm of and Valli vilas Aqua farm Vellar estuary, Cuddalore District, Tamil Nadu, during the period of (September 2013 to November 2013). The collected samples were plated on TCBS- (Thiosulfate-Citrate-Bile salt-Sucrose) agar medium. The present study, totally 253 green colonies were isolated from TCBS agar plates and among these, 175colonies were identified by using the biochemical tests showed the V. parahaemolyticus, V. mimicus, V. vulnificus, V. damsela and P. shigelloides. The maximum species was recorded in V. parahaemolyticus (83.4 %) and minimum was observed in V. mimicus (1.7 %).
16
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Determination of ammonia, nitrate and nitrite concentrations in marine water samples with cultured marine ornamental fish water sample analysis

67%
Manikandarajan T., Ramamoorthy K., Shanmugasundaram S., Eswar A., Kathirvel K., Sankar G.
International Letters of Natural Sciences
|
2015
|
tom 42
The present studies were concentration of ammonia, nitrite, nitrate, dissolved oxygen, temperature, salinity and pH. For seven physicochemical parameters were determined in marine water samples along with marine ornamental fish water sources from CAS in marine biology laboratory conditions at Parangipettai. Water sample have been studied at a marine water sources. The study concentrations of parameters like ammonia, nitrite, nitrate, dissolved oxygen, temperature, salinity, and pH. And physicochemical parameters have been calculated. The data showed the difference of the investigated parameters in samples as follows; Concentration of water quality parameters like ammonia was maximum level above 1.158 μmol¯1, nitrite was ranging from 0.811 to 0.922 μmol¯1, nitrate was range maximum level above 4.84 μmol¯1, dissolved oxygen content was maximum level above 2.4 mg¯1, temperature was ranging from 32.3 to 100 °C, salinity values ranging from 0 to 36ppt and pH was ranging from 6.5 to 8.0. During the study period of from July 2013 to June 2014 we investigated concentration of seven physicochemical parameters value Marine water samples with cultured fish species in presence of water from CAS in Marine Biology laboratory Annamalai University at Parangipettai.
17

Life history and description of Leidyana subramanii sp.n.[Apicomplexa: Eugregarinida]. A new cephaline gregarine parasite of a grasshopper [Insecta: Orthoptera] in Tamil Nadu, India

67%
Pushkala K., Muralirangan M.
Acta Protozoologica
|
1998
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tom 37
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nr 4
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