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Faculty of Agriculture: Recent submissions

Now showing items 61-80 of 407

Comparative study on bioaccumulation of lead and cadmium by the cyanobacterium Synechocystis sp. PCC 6803 under laboratory conditions.

Arunakumara, K.K.I.U.; Xuecheng, Z.; Song, X. (PKP Publishing, 2007)

Bioremoval techniques have been employed in cleaning water bodies that suffer from detrimental effects of heavy metal pollution. In the present laboratory study, bioaccumulation of Pb2+ and Cd2+ was assessed using the ...
Optimum conditions for transformation of Synechocystis sp. PCC 6803.

Zang, X.; Liu, B.; Liu, S.; Arunakumara, K.K.I.U.; Zhang, Xuecheng (The Microbiological Society of Korea, 2007)

This study was conducted to determine the optimal conditions for introduction of exogenous DNA into Synechocystis sp. PCC 6803. Of the three transformation techniques studied, electroporation, ultrasonic transformation ...
Effect of Pb2+on phycobili protein content of Spirulina platensis, an edible cyanobacterium.

Arunakumara, K.K.I.U.; Zhang, X. (Postgraduate Institute of Agriculture, Peradeniya, Sri Lanka, 2007)

Among the commercialized microalgae, increasing attention is being focused on Spirulina plantensis, because of its multi-nutritional properties and other benefits. Taking in to consideration that the chemical composition ...
Plurispore development of Cladosiphon okamuranus Tokida (Chordariaceae, Phaeophyta).

Zhu, Q.; Zhang, X.; Xu, D.; Arunakumara, K.K.I.U.; Shi, Y.; Zhu, L. (Bangladesh Botanical Society, 2007)

Development of plurispores and effects of temperature on their attachment to substrata were studied using mature plurilocular sporangia of Cladosiphon okamuranus Tokida. Development of plurispore showed the disc type, ...
Growth and pigment biosynthesis of Spirulina platensis as affected by Pb2+ concentrations.

Arunakumara, K.K.I.U.; Xuecheng, Z.; Yijing, Z. (Bangladesh Botanical Society, 2007)

Growth and pigment biosynthesis of Spirulina platensis Geitler, an edible cyanobacterium were stimulated at low concentration (1 mg/l) of Pb2+ . The pigment biosynthesis was found to decrease with increasing Pb2+concentrations. ...
Heavy metal bioaccumulation and toxicity with special reference to microalgae.

Arunakumara, K.K.I.U.; Zhang, X.C. (Ocean University of China, 2008)

The bioaccumulation and toxicity of heavy metals were reviewed with special reference to microalgae, the key compo nent of the food web in aquatic ecosystems. Heavy metals enter algal cells either by means of active transport ...
Growth, feed efficiency, body muscle composition, and histology of flounder (Paralichthys olivaceus) fed GH transgenic Synechocystis.

Liu, S.; Zhang, X.; Zang, X.; Liu, B.; Arunakumara, K.K.I.U.; Xu, D.; Zhang, Xiaoqing (ELSEVIER, 2008)

Effects of transgenic Synechocystis sp. PCC6803 (SYN) containing flounder growth hormone gene on survival, growth, feed efficiency, muscle composition and histology of flounder were assessed in a 7-week feeding trial. 180 ...
Genotoxic evaluation of the GH transgenic Synechocystis using mice and turbot (Scophthalmus maximus L.).

Liu, S.; Zhang, X.; Zang, X.; Arunakumara, K.K.I.U. (ELSEVIER, 2008)

In the present paper, the genotoxicity of transgenic Synechocystis sp. PCC 6803 containing flounder (Par alichthys olivaceus) growth hormone gene has been assessed using micronucleus tests in mice and fish. No micronucleus ...
Bioaccumulation of Pb2+ and its effects on growth, morphology and pigment contents of Spirulina (Arthrospira) platensis.

Arunakumara, K.K.I.U.; Zhang, X.; Song, X. (SP Science Press, 2008)

A laboratory experiment was conducted to assess the bioaccumulation of Pb2+ and its effects on growth, morphology and pigment contents of Spirulina (Arthrospira) platensis. The specimen cultured in Zarrouk liquid medium ...
Effects of heavy metals (Pb2+ and Cd2+) on the ultrastructure, growth and pigment contents of the unicellular cyanobacterium Synechocystis sp. PCC 6803.

Arunakumara, K.K.I.U.; Xuecheng, Z. (SP Science Press, 2009)

The unicellular cyanobacterium Synechocystis sp. PCC 6803, a model organism known for its unique combination of highly desirable molecular genetic, physiological and morphological characteristics, was employed in the ...
Home gardening as a tool for improving food and nutritional security - A case study at Madiha and Gandara in Sri Lanka.

Arunakumara, K.K.I.U.; Subasignhe, S.; Senaratne, R. (University of Ruhuna, Sri Lanka, 2009)

Improvements of food and nutritional security of coastal communities affected by the Tsunami is a matter of great concern. Home gardening, in this regard, is highly considered as it could make an important contribution ...
Ultrastructure of sporophyte of Cladosiphon okamuranus Tokida (Ectocarpales, Phaeophyceae).

Zhu, Q.; Zhang, X.; Arunakumara, K.K.I.U. (Faculty of Agriculture, 2009)

Transmission Electron Microscopy of 35 day old culture of Cladosiphon okamuranus Tokida, revealed several chloroplasts and other organelles in each cell of assimilatory filaments. Each chloroplast possesses single ...
Salacia reticulata WIGHT (Kothalahimbatu): A Review of botany, phytochemistry and pharmacology.

Arunakumara, K.K.I.U.; Subasinghe, S. (University of Ruhuna, Sri Lanka, 2010)

Salacia reticulata is a large woody climbing shrub naturally found in Sri Lanka and Southern region of India. It is widely used in treating diabetes, a chronic disorder in metabolism of carbohydrates, proteins and fat ...
Pterocarpussantalinus Linn f. (Rathhandun): A review of its botany, uses, phytochemistry and pharmacology.

Arunakumara, K.K.I.U.; Walpola, B.C.; Subasinghe, S.; Yoon, M.H. (Springer, 2011)

Pterocarpus santalinus Linn.f., commonly known as Red sanders, belongs to the family Fabaceae. It is endemic to India and considered globally endangered, with illegal harvest being a key threat. The plant is renowned for ...
Growth response of Salacia reticulata (Kothalahimbatu) seedlings to different rates of Nitrogen, Phosphorus and Potassium.

Arunakumara, K.K.I.U.; Nayana, E.KE.C.; Subasinghe, S. (Ministry of Indidinous Medicine, Sri Lanka, 2011)

Effective fertilization, due to its practical implication, plays a key role in the development of agro-technological packages for the species which have high demand in the market. Salacia reticulate (Kothalahimbutu), a ...
Recent advances in research on Gymnema sylvestre R. BR. (Masbedda).

Arunakumara, K.K.I.U. (Ministry of Indidinous Medicine, Sri Lanka, 2011)

Medicinal herbs have been used to treat diabetes for many hundreds of years, and they offer a natural resource of ant diabetic products in Asia and Africa where the plants grow abundantly. The Indian herb Gymnema sylvestre ...
How do citrus crops cope with aluminum toxicity?

Arunakumara, K.K.I.U.; Walpola, B.C.; Yoon, M.H. (Korean Society of Soil Science and Fertilizer, 2012)

World Agriculture faces daunting challenges in feeding the growing population today. Reduction in arable land extent due to numerous reasons threatens achievement of food and nutritional security. Under this back ground, ...
Aluminum toxicity and tolerance mechanism in cereals and legumes - A review.

Arunakumara, K.K.I.U.; Walpola, B.C.; Yoon, M.H. (Springer, 2013)

Aluminum (Al), the third most abundant element overall, after silicon and oxygen, is found virtually in all food, air, soil and water. Under acidic conditions, Al is solubilized into [Al(H2O)6] 3+, which is highly toxic ...
Agricultural methods for toxicity alleviation in metal contaminated soils. A review.

Arunakumara, K.K.I.U.; Walpola, B.C.; Yoon, M.H. (Korean Society of Soil Science and Fertilizer, 2013)

Due to the fact that possible risk associated with soil-crop-food chain transfer, metal contamination in croplands has become a major topic of wide concern. Accumulation of toxic metals in edible parts of crops grown ...
Banana peel: A green solution for metal removal from contaminated waters.

Arunakumara, K.K.I.U.; Walpola, B.C.; Yoon, M.H. (The Korean Society of Environmental Agriculture, 2013)

BACKGROUND: Certain crop-based waste materials have been recognized as cost-effective and highly efficient adsorbents for removal and recovery of different kind of heavy metals from aqueous solutions. The ability is ...

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