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1

Nature and preservation of Vertebraria axes in the Lower Gondwana beds of India

100%
Srivastava A. K.
Acta Palaeobotanica
|
1995
|
tom 35
|
nr 2
2

Renal changes in selenium-exposed freshwater Indian catfish, Heteropneustes fossilis [Bloch]

89%
Srivastava A. K., Srivastava A. K.
Acta Hydrobiologica
|
1995
|
tom 37
|
nr 3
Acute (6.25 mg dm-3, exposure 36 h) and subacute (2.08 and 1.04 mg dm-3, exposure 1-8 weeks) levels of selenium caused periglomerular fibrosis accompanied with intrafiltration of blood cells in the capsular space. Proliferative glomerulonephritis as well as fragmentation and necrosis of cells of the renal tubule were also observed. However, no remarkable change was noted in fish exposed to a sublethal (0.625 mg dm-3) concentration of Se for 1-8 weeks.
3

Blood dyscrasis in the freshwater Indian catfish Heteropneustes fossilis after acute exposure to a sublethal concentration of propoxur

71%
Singh N. N., Srivastava A. K., Srivastava A. K.
Acta Hydrobiologica
|
1992
|
tom 34
|
nr 1-2
189-195
The exposure of the Indian catfish Heteropneustes fossilis to 96 hr LCo concentration (5 mg dm-3) of a carbamate pesticide propoxur evoked a significant increase in the values of the erythrocyte sedimentation rate and clotting time of the blood, whereas significant decreases were observed in the total erythrocyte, leucocyte, and thrombocyte counts and haematocrit, and haemoglobin content.
4

Influence of temperature on the fecundity and acetylcholinesterase activity of the fresh water snail Lymnaea acuminata

63%
Srivastava A. K., Singh V. K.
Journal of Biology and Earth Sciences
|
2015
|
tom 05
|
nr 1
5

Heptachlor induced haematological and biochemical changes in the Indian catfish (Heteropneustes fossilis (Bloch.))

63%
Srivastava A. K., Mishra J.
Acta Hydrobiologica
|
1987
|
tom 29
|
nr 4
6

Condition monitoring of systems in thermal power plant for vibration, motor signature, noise and wear debris analysis

63%
Kurien C., Srivastava A. K.
World Scientific News
|
2018
|
tom 91
7

Effects of insecticide profenophos on germination, early growth, meiotic behavior and chlorophyll mutation of barley (Hordeum vulgare L.)

63%
Srivastava A. K., Singh A. K.
Acta Physiologiae Plantarum
|
2009
|
tom 31
|
nr 3
The genotoxicity of different concentrations of insecticide, profenophos (O-4-bromo-2-chlorophenyl O-ethyl S-propyl phosphorothioate) was evaluated at various stages of cell cycle (G₁, S and G₂) by using the seeds of barley (Hordeum vulgare L.). The aim of this work was to investigate the effects of insecticide profenophos at various stages of cell cycle on germination, seedling height and meiotic behavior in M₁ and chlorophyll mutations in M₂ generation. From the present study, it can be concluded that the stages of cell cycle were sensitive for the treatments of chemicals and it also showed that the S-phase of cell cycle is more sensitive than other phases of cell cycle.
8

Biological action of Piper nigrum - the king of spices

63%
Srivastava A. K., Singh V. K.
European Journal of Biological Research
|
2017
|
tom 07
|
nr 3
9

Occurrence of cordaitalean like foliage in the Lower Gondwana flora of India

63%
Chandra S., Srivastava A. K.
Acta Palaeobotanica
|
1991
|
tom 31
|
nr 1-2
10

Biochemical targets in filarial worms for selective antifilarial drug design

63%
Gupta S., Srivastava A. K.
Acta Parasitologica
|
2005
|
tom 50
|
nr 1
Filarial nematodes infect more than 150 million people worldwide and are responsible for diseases including elephantiasis, river blindness and tropical pulmonary eosinophilia. Antifílarial agents that can kill all the stages in the life cycle of causative filar- iae have yet to be developed. Very little effort has been made towards rational drug design, employing knowledge gained from studies of the biochemistry and physiology of filarial worms and of their interactions with their specific vertebrate hosts. In this review, we highlight the research and development of rational antifílarial agents and we discuss the pitfalls since the discovery of diethylcarbamazine, the only drug of choice for controlling filariasis, despite its adverse side effects.
11

Cecidomyiid leaf galls in Palaeocene leaves from north-eastern India

51%
Srivastava A. K., Abbas S. R., Mehrotra R. C., Srivastava R.
Acta Palaeobotanica
|
2000
|
tom 40
|
nr 1
12

Lower Permian plant fossils from India and Early developmental history of the Glossopteris flora

51%
Chandra S., Srivastava A. K., Singh K. J.
Acta Palaeobotanica
|
1992
|
tom 32
|
nr 1
13
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Effect of Drechslera graminea on total soluble proteins and defense enzymes of barley

45%
Goel N., Jaiswal G., Srivastava A. K., Paul P. K., Goel A.
Journal of Plant Protection Research
|
2018
|
tom 58
|
nr 3
Barley phylloplane is seriously colonized by Drechslera graminea, the causal agent of leaf stripe disease in the hos. The present study involved the elucidation of alterations induced in the protein content of the host due to Drechslera infection. Naturally growing barley plants were obtained from fields and Drechslera graminea was isolated and identified from diseased plants’ leaves. After identification and preparation of the pure culture, the pathogen was inoculated on plants grown under aseptic and controlled laboratory conditions. Changes in the total soluble cytoplasmic proteins and defense enzymes of the host such as polyphenol oxidase (PPO), peroxidase (POX), phenylalanine lyase (PAL) and tyrosine ammonia lyase (TAL) were observed up to 5 h after inoculation. The results demonstrated a significant effect of the pathogen on the cytoplasmic protein expression of the host as well as in its defense system.
14

Malachite green-induced changes in carbohydrate metabolism and blood chloride levels in the freshwater catfish Heteropneustes fossilis [Bloch]

45%
Srivastava A. K., Sinha R., Singh N., Roy D., Srivastava S.
Acta Hydrobiologica
|
1995
|
tom 37
|
nr 2
Exposure of the freshwater catfish H. fossilis to an acute concentration of 0.20 mg dm-3 (l/5th of 4 days LC50) of malachite green for 4 days evoked hepatic and muscle glycogenolysis with concomitant hyperglycaemia and chloraemia. Exposure of fish to sub-acute 0.10 mg dm-3 (l/10th of 4 days LC50) and sub-lethal 0.05 mg dm-3 (l/20th of 4 days LC50) concentrations of the dye also evoked a significant increase in blood glucose and chloride levels at short (10-20 days) and long (30-60 days) term as well as liver and muscle glycogenolysis at short term. However, there were no marked changes in the liver glycogen content at the sub-lethal dose or muscle glycogen content at either sub-acute or sub-lethal concentrations for long term exposure.
15

Comparative evaluation of hydro-, chemo- , and hormonalpriming methods for imparting salt and PEG stress tolerance in Indian mustard (Brassica juncea L.)

39%
Srivastava A. K., Lokhande V. H., Patade V. Y., Suprasanna P., Sjahril R., D`Souza S. F.
Acta Physiologiae Plantarum
|
2010
|
tom 32
|
nr 6
The present study was aimed to evaluate the effect of different seed priming methods to enhance the sodium chloride (NaCl) and polyethylene glycol-8000 (PEG-8000) stress tolerance in Indian mustard (Brassica juncea L.). Seeds subjected to different priming treatments such as water (hydro-priming), calcium chloride (CaCl₂) (chemo-priming), and abscisic acid (ABA) (hormonal-priming) showed increased rate of germination as compared to non-primed seeds. The primed and non-primed seeds were grown for 15 days and then the seedlings were independently subjected to iso-osmotic salt (150 mM NaCl) or PEG-8000 (20%) stress. The different biochemical responses were studied 10 days after treatment. Under NaCl and PEG stress, the dry weight and total chlorophyll content were higher in primed sets as compared to nonprimed treatment which was also evident by the phenotype of the seedlings. In general, the higher activities of superoxide dismutase and glutathione reductase resulted in lower oxidative damage, in terms of malondialdehyde content, under NaCl and PEG stress in hydro-primed set as compared to non-primed, ABA-, and CaCl₂-primed treatments. Besides, the level of total phenolics and accumulation of osmolytes such as free proline, glycine betaine, and total soluble sugars was also lower in hydro-primed set as compared to other primed and non-primed treatments. The study thus suggests the use of hydro-priming as a simple and cost-effective strategy to alleviate the NaCl and PEG induced stress in B. juncea.
16

Growth promotion and charcoal rot management in chickpea by Trichoderma harzianum

39%
Jyotsna, Srivastava A., Singh R. P., Srivastava A. K., Saxena A. K., Arora D. K.
Journal of Plant Protection Research
|
2008
|
tom 48
|
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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