Wyniki wyszukiwania

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Molluscicidal and piscicidal properties of three medicinal plants of family Apocynaceae-a review

100%

Singh S. K., Singh S. K., singh A.

Journal of Biology and Earth Sciences

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2013

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tom 03

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nr 2

2

Toxicological and biochemical alterations of apigenin extracted from seed of Thevetia peruviana, a medicinal plant

100%

Singh S. K., Singh S. K., Singh A.

Journal of Biology and Earth Sciences

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2013

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tom 03

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nr 1

3

Alginate-encapsulation of nodal segments for propagation, short-term conservation and germplasm exchange and distribution of Eclipta alba (L.)

71%

Singh S. K., Rai M. K., Asthana P., Sahoo L.

Acta Physiologiae Plantarum

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2010

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tom 32

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nr 3

Nodal segments obtained from in vitro proliferated shoots of Eclipta alba (L.) Hassk, were encapsulated in calcium alginate beads for large-scale clonal propagation, short-term conservation and germplasm exchange and distribution. The best gel complexation was achieved using 3% sodium alginate and 100 mM CaCl₂‧2H₂O. Maximum percent response (100%) for conversion of encapsulated nodal segments into plantlets was obtained on 0.7% agarsolidified full-strength MS medium containing 0.88 µM BAP. Encapsulated nodal segments could be stored at low temperature (4℃) up to 60 days with a survival frequency of 51.2%. The well-developed plantlets regenerated from encapsulated nodal segments were hardened-off successfully with 90% survival frequency.

4

An improved micropropagation of Spilanthes acmella L. throught transverse thin cell layer culture

71%

Singh S. K., Rai M. K., Asthana P., Sahoo L.

Acta Physiologiae Plantarum

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2009

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tom 31

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nr 4

An efficient and improved in vitro propagation system for Spilanthes acmella L. using transverse thin cell layer (tTCL) culture system was established. The frequency of shoot regeneration from tTCL nodal segments was affected by concentrations of plant growth regulators and orientation of the explant. MS (Murashige and Skoog in Physiol Plant 15:473–497, 1962) medium with 5.0 mg dm⁻³ BAP was optimal for shoot regeneration. Upon this medium, the explant inoculated in the upright orientation exhibited a high frequency of shoot regeneration (about 97%), and the highest number of shoots (31.5) per explant. The intact node (1.0–1.5 cm) cultured on the same medium had significantly lower shoot multiplication ability with only 4.5 shoots per responsive explant. As compared to BAP alone, the combination of BAP and Kin or NAA did not have positive effects on shoot multiplication from tTCL nodal segments. Rooting of shoots was achieved on growth regulator free full-strength MS medium. Plantlets were transplanted into soil with 90–100% survival rate.

5

Phytochemical and pharmacological investigations on mangiferin

63%

Singh S. K., Sharma V. K., Kumar Y., Kumar S. S., Sinha S. K.

Herba Polonica

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2009

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tom 55

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nr 1

126-139

Mangiferin, a C-glucopyranoside of 1, 3, 6, 7-tetrahydroxyxanthone, has been isolated from various parts of Mangifera indica (Anacardiaceae). The conclusive structure of mangiferin has been established by various researchers using a wide range of chemical and spectral analytical techniques. Mangiferin has been traditionally used in some parts of world as anti-inflammatory, analgesic, antipyretic, antioxidant, immunomodulator, antitumor, antiviral, and anthelminthic and in obesity treatment. The present article is an attempt to encompass various aspects and details related to the characterization of mangiferin and its subsequent pharmacological screening. The literature data on mangiferin has been comprehensively reviewed and evaluated by the authors and hence, the article contains brief description of phytochemical and pharmacological investigations conducted on mangiferin till now and thus may prove as a guiding force for further research in this particular area.

6

Monitoring change in land use and land cover in Rupnagar district of Punjab, India using Landsat and IRS LISS III satellite data

63%

Singh C. K., Shashtri S., Mukherjee S., Avtar R., Singh S. K.

Ecological Questions

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2010

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tom 13

Information about change is necessary for updating Land Use/ Land Cover LULC maps and the management of natural resources. The paper aims to map the changes in the LULC using hybrid classification methods and to quantify the land use/ land cover change that took place in the Rupnagar district of Punjab. The paper promotes the classification of LULC based on remote sensing information (obtained mainly through the utilization of Thematic Mapper TM) to generate data products that are both appropriate to, and immediately usable within different scientific applications. Satellite data provides the basis for geographically referenced land use/land cover characterization that is internally consistent, repeatable over time, and potentially more reliable. The main objective of this study is to quantify the change in the area of various LULC classes. Classification of four reflective bands of three Landsat images was carried out by using Isodata clustering algorithm with the aid of ground truth data. The second part focused on land use/ land cover changes by using the change detection comparison (pixel by pixel). The change analysis was performed by post image classification method, comparing the data from three different dates. The result indicates there was a rapid change in land use/land cover due to the increase in population. The results indicate that severe land cover changes have occurred in cropland (225.97 km2), dense forest (128.57 km2), settlement (93.5 km2), salt affected land (9.74 km2) and water body (11.69 km2) areas from 1989 to 2006.

7

Glycan mapping of recombinant human follicle stimulating hormone by mass spectrometry

63%

Singh S. K., Nage N., Jagani H., Maiti M., Ranbhor R. S.

Reproductive Biology

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2018

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tom 18

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nr 4

8

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Plant community characteristics and soil status in different land use systems in Dimapur district, Nagaland, India

63%

Singh S. K., Kumar K. W., Aier B., Kanduri V. P., Ahirwar S.

Leśne Prace Badawcze

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2012

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tom 73

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nr 4

9

Plant regeneration from alginate-encapsulated shoot tips of Spilanthes acmella (L.) Murr., a medicinally important and herbal pesticidal plant species

54%

Singh S. K., Rai M. K., Asthana P., Pandey S., Jaiswal V. S., Jaiswal U.

Acta Physiologiae Plantarum

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2009

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tom 31

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nr 3

This article demonstrates the plantlet regeneration from alginate-encapsulated shoot tips of Spilanthes acmella. Shoot tip explants excised from in vitro proliferated shoots were encapsulated in calcium alginate beads. The best gel complexation for encapsulation of shoot tips was achieved using 3% sodium alginate and 100 mM calcium chloride. Maximum percent response for the conversion of encapsulated shoot tips into plantlets was obtained on growth regulator-free full-strength liquid MS (Murashige and Skoog, Physiol Plant 15:473–497, 1962) medium. The addition of MS nutrients in alginate matrix was found to have pronounced effect on shoot and root emergence from alginate beads. Encapsulated shoot tips could be stored at low temperature (4°C) up to 60 days. Plantlets regenerated from encapsulated shoot tips were acclimatized successfully. The present synthetic seed technology could be useful in large-scale propagation as well as short-term conservation and germplasm distribution and exchange of Spilanthes acmella.

Ograniczanie wyników

Molluscicidal and piscicidal properties of three medicinal plants of family Apocynaceae-a review

Toxicological and biochemical alterations of apigenin extracted from seed of Thevetia peruviana, a medicinal plant

Alginate-encapsulation of nodal segments for propagation, short-term conservation and germplasm exchange and distribution of Eclipta alba (L.)

An improved micropropagation of Spilanthes acmella L. throught transverse thin cell layer culture

Phytochemical and pharmacological investigations on mangiferin

Monitoring change in land use and land cover in Rupnagar district of Punjab, India using Landsat and IRS LISS III satellite data

Glycan mapping of recombinant human follicle stimulating hormone by mass spectrometry

Plant community characteristics and soil status in different land use systems in Dimapur district, Nagaland, India

Plant regeneration from alginate-encapsulated shoot tips of Spilanthes acmella (L.) Murr., a medicinally important and herbal pesticidal plant species