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Asian J. Exp. Sci, Vol. 17, No. 1&2, 2003, 1-9

Alteration of Acid Phosphatase Activity in the Liver of Gamma Irradiated Mouse by Centella asiatica

Radha Sharma and Jaimala
Department of Zoology
University of Rajasthan, Jaipur-3020004 (India)

Abstract: Acid phosphatase activity increases above normal in the liver of whole body irradiated animals. It is considered to be one of the adverse radiation effects. Increase in the acid phosphatase activity was dose dependent. Centella asiatica extract, which increased the survival of gamma irradiated Swiss albino mouse when given prior to irradiation was tested to observe changes in the acid phosphatase activity in the liver of irradiated mouse. It was observed that Centella asiatica extract when given orally one hour prior to irradiation, significantly decreased acid phosphatase activity towards normal in the liver of irradiated mouse. This shows sign of protection offered by the plant extract.

Key Words : Gamma Radiation, Centella asiatica, Liver, Acid Phosphatate.

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Asian J. Exp. Sci, Vol. 17, No. 1&2, 2003, 11-15

Life Cycle Duration of Philosamia ricinii (L.) on Thirteen Released Castor Varieties as Different Host Plants for Appraisal of Best Variety / Varieties.

Dinesh Hans¹ and S. Sundaramoorthy²
1.     Lecturer in Botany, Govt. L.B.S. (PG) College,
        Kotputli - 303108, Jaipur (Rajasthan) India.
2.    Department of Botany
       Jai Narain Vyas University, Jodhpur - 342001 (Rajasthan)

Abstract: Life cycle duration of philosamia ricinii (L.) was studied on thirteen released castor varieties for the evaluation of best host variety, in the experiment designed as bio-assay of the castor leaves using erisilk worm and it was found that variety RHC-1 to be the best as the eriworm complete its life cycle very early about (35.2 ± 6.1) days, followed by variety TMV-5  (35.3 ± 4.8) days and on Aruna (36.0 ± 4.8) days respectively. This worm takes longer time to complete its life cycle when reared on variety SKI-73 (41.7 ± 9.6) days and longest on variety CO-1 (44.7 ± 12.5) days. Temperature light, humidity and overcrowding of the worms in the container was also considered to be the factors responsible for effecting the life cycle duration of the worm.

Keyword : Philosamia ricinii (L.), Castor, Larvae and Bio-assay.

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Asian J. Exp. Sci, Vol. 17, No. 1&2, 2003, 17-21

Plasma Magnesium Levels in the Stingray, Dasyatis akajei in Response to Administration of Salmon Calcitonin

Ajai Kumar Srivastav¹, Sunil K. Srivastav¹
Yuichi Shasayama² and Nobuo Suzuki²
1.       Department of Zoology
          University of Gorakhpur, Gorakhpur 273009, India
2.       Noto Marine Laboratory
          University of Kanazawa, Ogi-Uchiura
          Ishikawa 92705, Japan

Abstract:Salmon calcitonin was administered to the stingray, Dasyatis akajei to investigate effects on plasma magnesium levels. The plasma magnesium levels remained unchanged in the 6-hr period following the calcitonin injection. From these data, it appears that calcitonin plays no role in the endocrine regulation of magnesium.

Key words : Calcitonin, Magnesium, Stingray, Elasmobranch.

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Asian J. Exp. Sci, Vol. 17, No. 1&2, 2003, 23-34

Critical load – A New Approach, Concept and Applications

Ajay Taneja and  Gur Sumiran Satsangi
School of Chemical Sciences
Department of Chemistry
St. John’s College, Agra – 282 002

Abstract:Deposition of S and N oxides causes acidification and eutrophication of aquatic ecosystem. Critical load is being used by most of the European countries as a tool to set goals for future acid deposition such that the environment is protected. In present communication, critical load concept, steady state mass method, which is commonly used for deriving this load and its application for aquatic ecosystem have been discussed. The method is very simple to apply but major problem lies primarily in the estimation of authentic input data. By using this approach it is possible to identify the controls on ‘S’ and ‘N’ deposition which may be required to protect the ecosystem in future thus making it as a powerful tool for planning acidification abatement policies for a region.

Key words :Critical load, Acidification, Aquatic ecosystem and Abatement policies.

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Asian J. Exp. Sci, Vol. 17, No. 1&2, 2003, 35-41

Effect of Certain Antibiotics on Pollen Germination and Pollen Tube Growth in Tecomella undulata and Haplophragma adenophyllum.

U. Jain, D. K. Soni and R. P. Ahrodia

Department of Botany,
University of Rajasthan,
Jaipur-302004, Rajasthan.

Absrtact: Antibiotics show favourable effect on pollen germination and pollen tube growth in both the plants. Among all the antibiotics tried penicillin proved to the most effective and norfloxacin the least in both the plants.

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Asian J. Exp. Sci, Vol. 17, No. 1&2, 2003, 43-49

Scourge of High Fluoride in Ground Waters of Arid Rajasthan and Strategy of Its Mitigation.

D.D. Ozha¹, K.M.L. Mathur² and F.M. Golani³
    1. IWWA, Jodhpur Centre, CWD, Jodhpur  342 001.
   2. IWWA, Jodhpur Centre, PHED, District Circle, Jodhpur.
   3.Ground Water Department, Jodhpur - 342 003.

Abstract:The occurrence of high fluoride concentration in ground water has now become one of the most important health related geoenvironmental issues in many countries of the world. Our country is also confronting the same problem where the high fluoride concentration in ground water resources and the resultant disease “Fluorosis” is evenly distributed in nearly 150 districts of 15 states. It has been observed that about 25 million people in 8700 village in india are using ground water having fluoride content more than 1.5 mg/l. In Rajasthan, ground waters of the western and some southern part of the state are enriched with high fluoride concentration. The arid areas of the state are prone to both dental and skeletal fluorosis. As per P.h.e. Deptt. out of 37,889 villages and 45,311 habitations. 9741 villages and 6819 habitations, ground waters are enriched with excess fluoride content. The extent of severity was observed in Nagaur, Pali, Barmer, Jalore and Sikar district. It has also been observed that besides water other factors viz. nutritional deficiencies, high ambient temperature, high alkalinity and low calcium content and vitamin C are also responsible for endemic fluorosis. In recent years there has been a tremendous increase in the sale of sachets of Pan masala, Gutka, mouthwash and mouth ringes in north India in general and Rajasthan in particular, these are also rich sources of fluoride. Therefore, for the welfare of mankind such items must be banned. Since it is a socio-economic disease, therefore, it is imperative to mitigate the problem by adopting suitable scientific measures to protect the consumers.