scholarly journals Influence of the methanol extract and fractions of Smilax brasiliensis Sprengel on development in vitro of Nicotiana tabacum and Alllium cepa

2021 ◽  
Vol 10 (8) ◽  
pp. e26410817199
Author(s):  
Paula Avelar Amado ◽  
Ana Hortência Fonsêca Castro ◽  
Luciana Alves Rodrigues dos Santos Lima
Keyword(s):  
Nicotiana Tabacum ◽  
Methanol Extract ◽  
Leaf Growth ◽  
Folk Medicine ◽  
Basal Medium ◽  
Stem Size ◽  
Tobacco Seeds ◽  
Development In Vitro ◽  
Root Size

Smilax brasiliensis (Smilacaceae) is a native Brazilian plant found in the Cerrado biome and commonly used in folk   medicine. The aim of this study was to evaluate the influence of the methanol extract and fractions from S. brasiliensis leaves on development in vitro of Nicotiana tabacum (tobacco) and Allium cepa (onion) seeds. In vitro germination protocol of onion seeds was established. Tobacco and onion seeds were placed to germinate on basal medium added of extract or fractions of S. brasiliensis leaves and dichlorophenoxyacetic acid (2,4-D), 6-benzylaminopurine (BAP) and gibberellic acid (GA) at different concentrations in the presence of light. The germination ranged from 40 to 100% for tobacco and from 60 to 100% for onion seeds. The results indicated that the extract and fractions promoted higher growth than 2,4-D and GA when analyzed number of nodes, leaves, root and root size for germinated tobacco seeds, and higher growth when analyzed number roots and stem size for onion seeds. Regarding BAP, the extract and fractions inhibited leaf growth, root and root size of tobacco seeds. Further studies are needed to evaluate the possible use of the methanol extract and fractions from S. brasiliensis leaves as natural sources of hormones and/or bioherbicides.

scholarly journals Total Polyphenol Content, in vitro Antifungal and Antioxidant Activities of Callus Cultures from Inula crithmoides

2013 ◽  
Vol 8 (11) ◽  
pp. 1934578X1300801 ◽  
Author(s):  
Anahi Bucchini ◽  
Laura Giamperi ◽  
Donata Ricci
Keyword(s):  
Methanol Extract ◽  
Antioxidant Activities ◽  
Leaf Explants ◽  
Basal Medium ◽  
Alternaria Solani ◽  
Antimicrobial Activities ◽  
Callus Cultures ◽  
Naphthaleneacetic Acid ◽  
Stable Free Radical

This is the first report on the antioxidant and antifungal activities of callus cultures from Inula crithmoides L. (Asteraceae). Callus cultures were initiated from leaf sections, on initial culture MS basal medium supplemented with various concentrations of 2,4-D (2,4-dichlorophenoxyacetic acid), NAA (1-naphthaleneacetic acid) and IBA (indole-3-butyric acid) and a 72% survival was achieved. Significant differences between the various auxins used as phytohormones on callus growth were found. Maximum callusing was noticed on the leaf explants grown on MS basal medium supplemented with 1 mgL–1 2,4-D. Subsequently the antioxidant and antimicrobial activities of the methanol extract from calli were investigated. Antioxidant studies suggested that the methanol extracts of dark-grown and light-grown callus were able to reduce the stable free radical 2,2-diphenyl-1-picrilhydrazyl (DPPH). In the inhibition against lipid peroxidation, extracts of dark-grown callus showed the strongest effect with IC50 values better than those of the standards. The methanol extract of callus cultures had significant antifungal activity only against two of the fungi tested: Alternaria solani and Phytophthora cryptogea. Against all the other tested fungi, the I. crithmoides calli extracts showed fungistatic activity.

scholarly journals Antioxidant Potential, DNA Protection, and HPLC-DAD Analysis of Neglected MedicinalJurinea dolomiaeaRoots

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Naseer Ali Shah ◽  
Muhammad Rashid Khan ◽  
Kiran Naz ◽  
Mubarak Ali Khan
Keyword(s):  
Methanol Extract ◽  
Antioxidant Activities ◽  
Folk Medicine ◽  
Alpine Region ◽  
Total Phenolic ◽  
Dna Protection ◽  
Tuberous Roots ◽  
Gallic Acid Equivalent ◽  
Crude Methanol Extract

Jurinea dolomiaeaBoiss., family Compositae, is a medicinally important plant of alpine region. Its tuberous roots are used in various ailments in folk medicine. This study was undertaken to estimate total phenolic (TPC) and total flavonoid contents (TFC) and to determine anti-free radical potential by diversein vitroantioxidant assays. Crude methanol extract (JDME) was fractionated inton-hexane (JDHE), chloroform (JDCE), ethyl acetate (JDEE),n-butanol (JDBE), and aqueous (JDAE) fractions. The results indicated that JDEE and JDCE constituted the highest amount of TFC (807±7.2 mg rutin equivalent/g sample) and TPC (757±9.4 mg gallic acid equivalent/g sample), respectively. Significant correlation of TFC with IC50values was recorded for•OH (R2=0.91), H2O2(R2=0.82), and ABTS (R2=0.82) assay. It could be made clear that JDEE was the most potent in antioxidant activity as compared to others, with generally lower IC50values for DPPH (41.1±1.0 μg/mL), ABTS (46.7±0.6 μg/mL), H2O2(42.2±0.9 μg/mL),•OH (61.1±1.1 μg/mL),O2-(152±1.1 μg/mL), and antilipid peroxidation (54.3±1.6 μg/mL). HPLC chromatogram of JDEE revealed the presence of catechin, caffeic acid, and rutin. The results indicated the antioxidant activities ofJ. dolomiaearoots and merit further investigations for their use in oxidative stress related disorders.

Development in vitro of excised flower primordia of Nicotiana tabacum

1970 ◽  
Vol 48 (1) ◽  
pp. 133-139 ◽  
Author(s):  
G. S. Hicks ◽  
I. M. Sussex
Keyword(s):  
Nicotiana Tabacum ◽  
Normal Embryo ◽  
Flower Primordia ◽  
Bud Development ◽  
Flower Morphogenesis ◽  
Bud Growth ◽  
Specific Regulation ◽  
Development In Vitro ◽  
Normal Flower

Young flower primordia of Nicotiana tabacum 'Wisconsin 38' have been successfully cultured on a nutrient medium supplemented with kinetin. The petal, stamen, and carpel primordia form in the normal acropetal sequence during the first week on excised floral apices which initially bore only sepal primordia. Relatively normal morphogenesis of the organs ensues, and on optimal concentrations of kinetin, pedicel length, calyx length and width, corolla width, and ovary length and width after 4 weeks were comparable to those in the normal flower at anthesis. The corolla, filaments, and style were always much shorter than normal. Large quantities of pollen were produced on low kinetin concentrations and normal embryo sacs formed in the numerous ovules. When kinetin was omitted from the medium, similar explants initiated all the organ primordia, but these subsequently remained minute through 4 weeks of culture. The data indicate that organ initiation is independent of exogenously supplied hormones, but that the later phases of bud growth have a marked requirement for kinetin. It is suggested that the sepals or petals may provide some stimulus for the initiation of meiosis in the anthers and ovules. In that flower morphogenesis in culture is independent of specific regulation from the rest of the plant, bud development appears to be relatively autonomous.

scholarly journals In vivo anti-inflammatory, antipyretic, analgesic activity and in vitro anti-proliferative activity of aqueous methanolic extract of Euphorbia granulata Forssk

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Mohsin Ahmad Ghauri ◽  
Liaqat Iqbal ◽  
Ali Raza ◽  
Uzma Hayat ◽  
Naveel Atif ◽  
...  
Keyword(s):  
Plant Extract ◽  
Mtt Assay ◽  
Proliferative Activity ◽  
Methanol Extract ◽  
Folk Medicine ◽  
Aqueous Methanol ◽  
Whole Plant ◽  
Anti Inflammatory

Abstract Background Naturally occurring substances of plant origin have long been used in folk medicine for curing various ailments including fever, pain, and inflammation etc. After careful evaluation on scientific bases, a large number of those substances provides cheaper alternative to currently used synthetic or semi-synthetic agents. Thus, with an aim of discovering alternative medicine for treatment of such ailments, current study was carried out. Euphorbia granulata Forssk. had long been used as a therapeutic agent against various morbid conditions, e.g., anthelmintic, snake bite, scorpion sting, purgative, and diuretic, and as blood purifying agent in folk medicine. The purpose of the current study was to determine the extended therapeutic use of Euphorbia granulata Forssk. based upon scientific evaluation, to explore the potential of its anti-proliferative, analgesic, antipyretic, and anti-inflammatory activities while using an aqueous methanol extract of the whole plant. Results In vivo study was performed on female rats of specie Rattus norvegicus weighing (100–150 g). Anti-inflammatory activity of the plant extract was calculated against using carrageenan induced paw edema. Analgesic potential both central and peripheral was assessed by using Eddy’s hot plate method and acetic acid-induced writhing model, respectively. The antipyretic potential was appraised using brewer’s yeast suspension, injected under the nape of the neck, and body temperature was measured using a digital thermometer. The plant extract strengths used for in vivo experiments were 50 mg, 100 mg, and 200 mg/kg (diluted in normal saline) and were administered through intra-peritoneal route. MTT assay was performed to estimate in vitro anti-proliferative potential. For this assay, a serial dilution of the plant extract was used with 100 μg/ml as the highest concentration. In vivo results demonstrated that plant extract at dose strength of 200 mg/kg, showed significant (p* < 0.05) anti-inflammatory, analgesic, and antipyretic activities. In case of MTT assay, however, no significant anti-proliferative activity (p > 0.05) was observed up to 100 μg/ml dose strength. Conclusion It can be concluded that aqueous methanol extract of Euphorbia granulata (whole plant) have shown significant anti-inflammatory, analgesic, and anti-pyretic activity in animal model. Therefore it can be a potential candidate, as a therapeutic alternative against treatment of algesia, pyrexia, and inflammation of various pathological origin. However, the plant extract did not demonstrate any significant anti-proliferation activity at doses used in this study.

scholarly journals Development, in vitro and in vivo evaluations of novel lipid drug delivery system of Newbouldia laevis (P. Beauv.)

2016 ◽  
Vol 3 ◽  
pp. 184954351667344
Author(s):  
Chukwuebuka Umeyor ◽  
Emmanuel Anaka ◽  
Franklin Kenechukwu ◽  
Chinazom Agbo ◽  
Anthony Attama
Keyword(s):  
Encapsulation Efficiency ◽  
Folk Medicine ◽  
Research Work ◽  
Lipid Matrix ◽  
Solid Lipid ◽  
Development In Vitro

Newbouldia laevis (P. Beauv.) is a tropical rainforest plant used in traditional folk medicine for the treatment of malaria, cough, joint pains, stomach ache, oedema and inflammation. The main thrust of this research work was to study the analgesic/anti-nociceptive properties of N. laevis-loaded solid lipid microdispersions. N. laevis leaves were extracted using ethanol, and the extract was formulated into solid lipid microdispersions using lipid matrix comprising a rational blend of Precirol® ATO 5 and Softisan® 154. Characterization of the solid lipid microdispersions include determination of morphology, particle size, pH, thermal property, encapsulation efficiency percentage and analgesic/anti-nociceptive property. The results obtained showed that the particles were spherical with sizes ranging from 40 µm to 125 µm. The solid lipid microdispersions maintained a stable pH within the acidic region of 5–6 with insignificant variations ( p > 0.05) over a period of 90 days. Thermal analysis showed that N. laevis was entrapped in the lipid matrix used for the formulations. Solid lipid microdispersions recorded a maximum encapsulation efficiency up to 88.1%. N. laevis-loaded solid lipid microdispersions also produced good analgesic/anti-nociceptive property comparable with the standard diclofenac potassium. N. laevis-loaded solid lipid microdispersions showed good analgesic/anti-nociceptive effect and could be used in the treatment and management of pain.

scholarly journals A Comparison between Synthetic and Organic Iron Chelators on in Vitro Growth of Nicotiana tabacum Callus Cultures

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 630g-631
Author(s):  
Lisa C. Berg ◽  
Henry R. Owen
Keyword(s):  
Nicotiana Tabacum ◽  
Culture Media ◽  
Basal Medium ◽  
Callus Cultures ◽  
Callus Growth ◽  
Fresh Weight ◽  
Iron Chelate ◽  
Tissue Culture Media ◽  
The Media

Nicotiana tabacum callus growth (fresh weight) was measured after culture in the light (16-hour photoperiod) or in darkness for four different culture media, differing in iron chelate type or concentration. All media contained MS basal medium supplemented with 30 g·L–1 sucrose, 2 mg·L–1 IAA, 0.2 mg·L–1 KIN, and 7 g·L–1 agar, pH 5.8. Three of the media contained iron-metalosate (Albion Laboratories), an organic iron chelate, at 100, 200, and 400 micromolar concentrations, and the fourth medium contained 100 μm Fe-EDTA. Twenty-five culture tubes were prepared for each of the 4 different media concentrations and 2 light treatments (8 treatments total). A 1-cm3 callus explant was used for each treatment and cultured for 56 days at 20°C. About 20-fold increases in callus fresh weight were observed for cultures incubated in light or in darkness. In addition, callus growth was not significantly affected by iron chelate type, suggesting the potential utility of this organic chelator in tissue culture media to alleviate potential problems of light-induced EDTA instability and subsequent IAA inactivation. These cultures are being maintained to examine the influence of iron chelate type on organogenesis.

scholarly journals SOME MISCELLANEOUS EXPERIMENTS WITH COCONUT EMBRYO CULTURE

CORD ◽  
1996 ◽  
Vol 12 (01) ◽  
pp. 34
Author(s):  
Roger Ashburner ◽  
D.R. Tomlinson ◽  
W.K. Thompson
Keyword(s):  
Carbon Source ◽  
Embryo Culture ◽  
Growth And Development ◽  
Basal Medium ◽  
Biologically Active ◽  
Embryo Cultures ◽  
Time Period ◽  
Gaseous Composition ◽  
Development In Vitro

The growth and development of coconut embryo cultures can be manipulated by various methods, including the alteration of the carbon source in the basal medium. Shoot growth was favoured when glucose was used as the carbon source, but root growth was stimulated when sucrose was used at equimolar concentrations. Both fructose and glucose were found to, stimulate vitrification and mannitol was inert. BAP had no effect on the growth and development of coconut embryo cultures up to a level of 316 M. Ethylene and carbon dioxide built up in the culture flasks to biologically active concentrations but did not affect growth in the time period measured. The build‑up of these gases could be alleviated through altering the sealing mechanisms of the culture flasks. In vitro, coconut embryos germinate faster in sealed culture flasks and it is assumed that this is to do with the gaseous composition of the head­space. Genotype of the embryo has perhaps the greatest influence on coconut growth and development in vitro, with significant differences being found in the growth rates of the 10 Pacific genotypes tested. This issue should be taken into account when recommendations are made on the use of a general protocal for the use of coconut embryo culture for the collection and conservation of germplasm.

scholarly journals Anti-α-glucosidase and antiglycation activities of galls from Guiera senegalensis J.F. Gmel (combretaceae)

2018 ◽  
Vol 10 (2) ◽  
pp. 81
Author(s):  
Pierre Alexandre Eric Djifaby SOMBIE ◽  
Rahman M HAFIZUR ◽  
Moussa COMPAORÉ ◽  
Martin KIENDREBEOGO ◽  
Muhammad Iqbal CHOUDHARY ◽  
...  
Keyword(s):  
Inhibitory Activity ◽  
Methanol Extract ◽  
Folk Medicine ◽  
Pharmaceutical Preparations ◽  
Ethyl Acetate Fraction ◽  
Diabetic Subject ◽  
Antidiabetic Activity ◽  
Guiera Senegalensis ◽  
New Perspective

<p>The hypoglycemic activity of <em>Guiera senegalensis</em> used in Burkinabe folk medicine has been already reported. The aim of this study was to investigate the in <em>vitro</em> antidiabetic activity from galls of <em>G.senegalensis</em>. The extracts and methanol fractions from galls of <em>G. senegalensis</em> showed strong α-glucosidase inhibitory activity compared with acarbose. The ethyl acetate fraction from methanol extract (EA/ME) showed potent antiglycation activity in an <em>in vitro</em> assay system. The galls did not show inhibition activity against α-chymotrypsin. The α-glucosidase inhibitory activity along with its antiglycation activity may open a new perspective for the use of <em>G. senegalensis</em> for the diabetic subject. The data suggests that consumption of <em>G senegalensis</em> galls as an infusion or in food and pharmaceutical preparations may be useful for the management of diabetes and its complications.</p>

scholarly journals In VitroandIn VivoAnticancer Effects of Sterol Fraction from Red AlgaePorphyra dentata

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Katarzyna Kazłowska ◽  
Hong-Ting Victor Lin ◽  
Shun-Hsien Chang ◽  
Guo-Jane Tsai
Keyword(s):  
Methanol Extract ◽  
Folk Medicine ◽  
Suppressor Cells ◽  
Sterol Fraction ◽  
Solvent Fractionation ◽  
Red Macroalgae ◽  
Induced Apoptosis ◽  
Growth Of Tumor

Porphyra dentata, an edible red macroalgae, is used as a folk medicine in Asia. This study evaluatedin vitroandin vivothe protective effect of a sterol fraction fromP. dentataagainst breast cancer linked to tumor-induced myeloid derived-suppressor cells (MDSCs). A sterol fraction containing cholesterol,β-sitosterol, and campesterol was prepared by solvent fractionation of methanol extract ofP. dentata  in silicagel column chromatography. This sterol fractionin vitrosignificantly inhibited cell growth and induced apoptosis in 4T1 cancer cells. Intraperitoneal injection of this sterol fraction at 10 and 25 mg/kg body weight into 4T1 cell-implanted tumor BALB/c mice significantly inhibited the growth of tumor nodules and increased the survival rate of mice. This sterol fraction significantly decreased the reactive oxygen species (ROS) and arginase activity of MDSCs in tumor-bearing mice. Therefore, the sterol fraction fromP. dentatashowed potential for protecting an organism from 4T1 cell-based tumor genesis.

Somatic Embryogenesis and In vitro Plant Regeneration in Vigna trilobata (L.) Verd. - A Potential Pasture Legume

1970 ◽  
Vol 19 (1) ◽  
pp. 89-99
Author(s):  
K. Choudhary ◽  
M. Singh ◽  
M. S. Rathore ◽  
N. S. Shekhawat
Keyword(s):  
Somatic Embryogenesis ◽  
Growth Regulators ◽  
Somatic Embryos ◽  
Basal Medium ◽  
Long Term Study ◽  
Continuous Application ◽  
First Time ◽  
Pasture Legume

This long term study demonstrates for the first time that it is possible to propagate embryogenic Vigna trilobata and to subsequently initiate the differentiation of embryos into complete plantlets. Initiation of callus was possible on 2,4-D. Somatic embryos differentiated on modified MS basal nutrient medium with 1.0 mg/l  of 2,4-D and 0.5 mg/l  of Kn. Sustained cell division resulted in globular and heart shape stages of somatic embryos. Transfer of embryos on to a fresh modified MS basal medium with 0.5 mg/l of Kn and 0.5 mg/l of GA3 helped them to attain maturation and germination. However, the propagation of cells, as well as the differentiation of embryos, were inhibited by a continuous application of these growth regulators. For this reason, a long period on medium lacking these growth regulators was necessary before the differentiation of embryos occurred again. The consequences for improving the propagation of embryogenic cultures in Vigna species are discussed. Key words: Pasture  legume, Vigna trilobata, Globular, Heart shape, somatic embryogenesis D.O.I. 10.3329/ptcb.v19i1.4990 Plant Tissue Cult. & Biotech. 19(1): 89-99, 2009 (June)

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