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Heterodoxus spiniger [Boopiidae, Mallophaga] from Canis familliaris from India in the light and scanning electron microscopes

100%
Zlotorzycka J., Modrzejewska M., Saxena A. K.
Wiadomości Parazytologiczne
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1995
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tom 41
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nr 4
455-462
Knowledge of morphometric characteristics of Heterodoxus spiniger was widened on the basis of material collected from dog (Canis familiaris) from India. Study, mostly by scanning electron microscope, concerned the males, females and nymphs of H.spiniger. The functional role of some elements, particularly observed surface ultrastructures, has been pointed out. The differences between postembrional stages were determined as well as literature data on H.spiniger were critically analysed.
2

Protective effect of treatment with black cumin oil on spatial cognitive functions of rats that suffered global cerebrovascular hypoperfusion

88%
Azzubaidi M. S., Saxena A. K., Talib N. A., Ahmed Q. U., Dogarai B. B.
Acta Neurobiologiae Experimentalis
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2012
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tom 72
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nr 2
The fixed oil of black cumin seeds, Nigella sativa L. (NSO), has shown considerable antioxidant and anti-inflammatory activities. Chronic cerebral hypoperfusion has been linked to neurodegenerative disorders including Alzheimer's disease (AD) and its subsequent cognitive impairment in which oxidative stress and neuroinflammation are the principal culprits. Cerebrovascular hypoperfusion was experimentally achieved by bilateral common carotid arteries occlusion (2VO) in rats. Morris water maze (MWM) test was employed to assess the effects of NSO on spatial cognitive function before and after 2VO intervention. Rats were divided into long-term memory (LTM) and short-term memory (STM) groups, each was further subdivided into 3 subgroups: sham control, untreated 2VO and NSO treated 2VO group. All subgroups were tested with MWM at the tenth postoperative week. Working memory test results for both sham control and NSO treated groups showed significantly lower escape latency time and total distance travelled than untreated 2VO group. Similarly, LTM and STM MWM tests for sham control and NSO treated groups revealed significantly better maze test performance as compared to untreated 2VO group. Sham control and NSO treated 2VO groups demonstrated superior probe memory test performance as compared to untreated 2VO group. The fixed oil of Nigella sativa seeds has demonstrated noticeable spatial cognitive preservation in rats challenged with chronic cerebral hypoperfusion which indicates a promising prospective neuroprotective effect.
3

Performance of low and high Fe accumulator wheat genotypes grown on soils with low or high available Fe and endophyte inoculation

88%
Singh D., Geat N., Rajawat M. V. S., Prasanna R., Saxena A. K.
Acta Physiologiae Plantarum
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2020
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tom 42
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nr 02
4

Growth promotion and charcoal rot management in chickpea by Trichoderma harzianum

76%
Jyotsna, Srivastava A., Singh R. P., Srivastava A. K., Saxena A. K., Arora D. K.
Journal of Plant Protection Research
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2008
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tom 48
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nr 1
81-92
The strains of Trichoderma harzianum were assessed for their effect on chickpea growth and control of charcoal rot caused by Macrophomina phaseolina in greenhouse assay. T. harzianum strain 25-92 significantly increased the fresh and dry weights by 50-63% and 24-42%, respectively, whereas strain 29-92 increased the fresh weight of chickpea cv. Radhey and Vishwas by 12-30% but not the dry weight in the absence of M. phaseolina. A marked increase in root length was caused by both the strains. In M. phaseolina infested pots, number of lateral roots and branching decreased with nonsignificant change in weight. Significant (P = 0.05) reduction in charcoal rot disease was observed in the pots amended with T. harzianum at all the concentrations. Moreover, 60-40% reduction in disease was recorded after 14 and 28 days in chickpea varieties Radhey and Vishwas. The resistant variety Vijay does not show significant disease. The reduction in disease was more pronounced at higher inoculum concentrations of T. harzianum (107-108 cfu/g). Overall, Trichoderma strain 25-92 improved plant growth and reduced damage in presence of the pathogen. Besides disease control the growth promoting properties of the strain improve the efficacy for commercial application.
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