Search results

1

Effect of tenotomy on extensor digitorum longus muscle in Sprague Dawley rats

100%

Gill N., Shakoori A. R.

Folia Biologica

|

1998

|

vol. 46

109-118

EN

The effect of tenotomy on Extensor Digitorum Longus (EDL) muscle, brought about by removal of anterior tibialis muscle was studied in the rat. Hypertrophy as well as hyperplasia of the muscle fibres were observed following tenotomy of intact muscle. The transplanted muscle regenerated after tenotomy in the form of a flat strap. The weight, length, breadth and total muscle area of intact muscle increased but decreased in transplanted muscle following tenotomy. The number of muscle fibres/microscopic field increased during the entire experiment in intact muscle after tenotomy, while in transplant the number of fibres first decreased and then increased. The diameter of intact and transplanted muscle increased after tenotomy. The number and diameter of nuclei was normalized at the end of experiment in both groups. The DNA and RNA content was increased in intact muscle after tenotomy. In transplant DNA and RNA content first increased but than decreased. The protein content was increased in intact muscle at the end of the experiment but decreased in transplant after tenotomy.

2

Biocidal activity of Bacillus species for Anopheles larvae

85%

Shakoori A. R., Anwar S., Khurshed N., Haq R. U., Haq R. U., Shakoori A. R.

Folia Biologica

|

1999

|

vol. 47

|

issue 3-4

143-148

EN

It is generally accepted that Bacillus thuringiensis (B.t.) is specifically toxic to some insects but does not pose any threat to the environment, operators, or consumers. There are several other Bacillus species which can be used as effective bioinsecticides. In this study four different species of Bacillus, i.e., B. coagulans, B. megaterium, B. brevis, and B. sphaericus were isolated from soil samples collected from Kala Shah Kakoo and Kasur areas, in the suburbs of Lahore. Isolated Bacillus species were administered to mosquito larvae to evaluate their biocidal activity. B. coagulans I from Kala Shah Kakoo showed 93% mortality, while B. coagulans III from Kasur showed 70% mortality. Bacterial isolates most toxic to Anopheles larvae showed optimum growth at 37 ?C and pH 7. These isolates have a great potentcy to controlling anopheline population.

3

Microorganisms resistant to heavy metals and toxic chemicals as indicators of environmental pollution and their use in bioremediation

81%

Haq R. U., Shakoori A. R., Haq R. U., Shakoori a. R.

Folia Biologica

|

2000

|

vol. 48

|

issue 3-4

143-147

EN

Microorganisms present in water samples from various industrial effluents were analysed for their resistance to lead, chromium, and cadmium. The ability of these microorganisms to grow on or metabolize toxic hydrocarbons and pesticides was also checked. Microorganisms in samples from the steel and tanning industries were generally resistant to metal ions but were not capable of metabolizing toxic hydrocarbons. Conversely, microorganisms found in samples of pesticide and from the chemical industry were capable of metabolizing hydrocarbons and pesticides but were not much resistant to metal ions. Microorganisms from effluents of the paint industry and urban wastes were resistant to lead. A correlation between the population of microorganisms and the type of pollution was observed. Indigenous microorganism could be regarded as indicators of pollution and be used in various operations to resist, process, metabolize, and detoxify toxic industrial wastes.

Refine search results

3 Folia Biologica

1 2000

1 1999

1 1998

3 Shakoori A. R.

2 Haq R. U.

1 Anwar S.

1 Gill N.

1 Khurshed N.

1 Shakoori a. R.

Effect of tenotomy on extensor digitorum longus muscle in Sprague Dawley rats

Biocidal activity of Bacillus species for Anopheles larvae

Microorganisms resistant to heavy metals and toxic chemicals as indicators of environmental pollution and their use in bioremediation