scholarly journals Micropropagation of Eclipta alba using Humic Acid as Media Component

2020 ◽  
Vol 2 (1) ◽  
pp. 60

The potential of humic acid as a growth supplement in micropropagation of eclipta alba is reported in the present investigation. Eclipta alba explants were grown in MS media with BAP and Kinetin as growth factors, and it has been observed that BAP was more effective for in vitro regeneration of the explants. On the other hand, when humic acid was supplemented along with the growth factors, there is an increase in the shoot proliferation within a reduced period of time. The optimum concentration of humic acid required was found to be 300mg/100ml for the effective growth of explants. This study, therefore, supports the use of humic acid as a suitable growth supplement in micropropagation studies.

1970 ◽  
Vol 8 (2) ◽  
pp. 203-206 ◽  
Author(s):  
MM Khatun ◽  
MS Hossain ◽  
MA Haque ◽  
M Khalekuzzaman

A standard protocol was established for rapid in vitro propagation of watermelon (Citrullus lanatus Thumb.) from nodal explants of field grown plant. Multiple shoot proliferation was achieved from nodal explants on MS medium supplemented with 1.0 mg/l BAP + 0.2 mg/l NAA within 30 days of inoculation. The elongation of shoots was obtained on the same medium. Highest percentage of root induction was achieved on MS medium supplement with 1.0 mg/l IBA within 25 days of culture. Well rooted plantlets were transferred to small pots and after proper acclimatization the plantlets were transplanted in the field condition, where 80% plantlets were survived and grew successfully. Keywords: In vitro regeneration; Nodal explant; Citrullus lanatus DOI: 10.3329/jbau.v8i2.7926 J. Bangladesh Agril. Univ. 8(2): 203-206, 2010  


2017 ◽  
Vol 6 (2) ◽  
pp. 1566
Author(s):  
Jintu Sarma* ◽  
Pratibha Sharma

Acorus calamus L. is a species of enormous medicinal and economic importance. In vitro propagation of this plant was achieved using axillary bud explant. In the present investigation, naturally grown axillary bud and rhizome explants were cultured on standard MS and B5 medium supplemented with different concentration and combination of cytokinines and auxines. The best shoot proliferation was observed in MS medium containing Kn (1.0mg/l) +IBA (0.5mg/l) with 3.33±0.58 nos. of Shoots, 7.33±0.58 nos. of roots and 15.33±0.58 nos. leaves. In B5 medium best results found in Kn (1.5mg/) + NAA (1.0mg/l) with 2.67±0.58 nos. shoots, 3.67±0.58 nos. of roots and11.67±0.58 nos. of leaves. They were then transplanted in soil: sand: cow dung mixture (1:1:2) and kept in shade for 4 to 5 weeks and then transferred to field for one month. Survival rate was found 80 % in MS medium and 100 % in B5 medium. The present investigation was carried out with a view to standardize an in vitro culture technique for mass propagation of this important medicinal plant species and was found successful.


HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 877B-877
Author(s):  
Maritza I. Tapia ◽  
Paul E Read

It has been previously demonstrated that thidiazuron (TDZ) enhanced the regeneration and multiple shoot proliferation of vinifera grape cultivars. To determine the effect of TDZ on the multiplication of hybrid grapes, in vitro nodal segments from cultivars Chancellor, Leon Millot, and Valiant were cultured on MS medium supplemented with 0, 0.01, 0.05, 0.1, 0.5, and 1.0 mg TDZ/liter. After 1 month, the higher percentage of rooted shoots was obtained from the explants cultured in medium containing the lowest concentration of TDZ (0.01 mg–liter–1) independent of the genotype. Multiple shoot proliferation was favored by high concentrations of TDZ (0.5 and 1.0 mg–liter–1). An average of 0.39 and 0.39 shoots, respectively, was obtained from `Chancellor' cultures, 0.56 and 0.59 from `Leon Millot', and 1.93 and 2.38 from `Valiant'. Vitrification and teratological structures were observed in all the cultures of the three genotypes, but less vitrification occurred in `Valiant' plantlets.


HortScience ◽  
2016 ◽  
Vol 51 (4) ◽  
pp. 398-402 ◽  
Author(s):  
Mohammed Elsayed El-Mahrouk ◽  
Yaser Hassan Dewir ◽  
Yougasphree Naidoo

The present study reports a simple protocol for in vitro regeneration of Aglaonema ‘Valentine’ using axillary shoot explants for rapid multiplication and production of true-to-type plants. Different concentrations of benzyladenine (BA; 0, 1, 3, 5, and 7 mg·L−1), kinetin (Kin; 0, 1, 3, 5, and 7 mg·L−1), thidiazuron (TDZ; 0, 0.5, 1.0, 1.5, and 2.0 mg·L−1), naphthalene acetic acid (NAA; 0, 0.5, and 1.0 mg·L−1), and indole-3-butyric acid (IBA; 0, 0.5, and 1.0 mg·L−1) were used for shoot regeneration. The highest shoot proliferation (5.0) was obtained on Murashige and Skoog (MS) medium supplemented with 1.5 mg·L−1 TDZ and 1 mg·L−1 NAA. In vitro rooting was easily achieved with 100% at all concentrations of NAA and IBA supplemented to half- or full-strength MS medium. Regenerated plantlets were acclimatized in greenhouse with 100% survival rate. Randomly amplified polymorphic DNA (RAPD) analysis confirmed the genetic fidelity of the regenerated plantlets and mother plant.


1970 ◽  
Vol 43 (2) ◽  
pp. 215-222 ◽  
Author(s):  
AKM Sayeed Hassan ◽  
Farhana Afroz ◽  
Laila Shamroze Bari ◽  
John Liton Munshi ◽  
Miskat Ara Akhter Jahan ◽  
...  

A protocol was established for mass propagation of a valuable medicinal herb, Eclipta alba (Linn.) Hassk (Asteraceae) through in vitro culture. Apical and axillary buds of young sprouts from selected plants were used as explants. Best shoot induction was observed on MS basal medium supplemented with 0.5 mgl-1 BAP + 0.1 mgl-1 NAA, in which 94% of the explants produced 18 shoots per culture. Repeated subcultures in the same medium, resulted rapid shoot multiplication with 26 shoots per culture. In vitro raised shoots rooted on half strength MS medium with 1.0 mgl-1 IBA +1.0 mgl-1 NAA. For acclimatization and transplantation, the plantlets in the rooting culture tubes were kept in normal room temperature for 7 days before transplanting in pots where plantlets were reared for three weeks. The survival rate of regenerated plantlets was 80%. Key words: Eclipta alba, Medicinal plant, Shoot proliferation, Micropropagation, Acclimatization   DOI: 10.3329/bjsir.v43i2.965 Bangladesh J. Sci. Ind. Res. 43(2), 215-222, 2008 


2012 ◽  
Vol 39 (No. 1) ◽  
pp. 47-52 ◽  
Author(s):  
Saranjeet. Kaur ◽  
K.K. Bhutani

The aim of this study was to establish protocol for in vitro regeneration and multiplication of Cymbidium pendulum through protocorms, as explants using organic growth supplements such as banana homogenate, coconut water, and peptone. The effect of growth supplements was tested on multiplication (neo-formation of secondary protocorms from primary protocorms) of protocorms, development of maximum number of shoots and early plantlets in M medium (Mitra medium). Though the explants regenerated in the absence or presence of growth adjuncts in the medium; the regeneration frequency was found significantly higher in organic growth supplement-enriched medium than control. The protocorm segments (primary) regenerated into protocorm-like bodies (secondary protocorms) which eventually differentiated into shoots; no intervening callus stage was observed. Among the treatments, the highest regeneration frequency, robust shoots and root formation was recorded in banana homogenate (50 g/l); the roots were lengthy, thick, and covered all over the surface by root hairs. Higher concentration of banana homogenate (75 g/l) proved detrimental for the survival of cultures; the protocorm-like bodies showed necrosis and they perished soon after. Coconut water (10%) and peptone (2 g/l) supplemented medium proved optimum for profuse multiplication of protocorm-like bodies (PLBs) their early growth into plantlets. The treatments with organic growth supplements gave better and early plantlets as compared to control. Among these tested organic growth supplements, peptone (2 g/l) and coconut water (10%) proved beneficial for multiplication of regenerants, maximum number of shoots formation and early plantlet development; whereas banana homogenate (50 g/l) favoured the highest regeneration frequency and healthy growth of plantlets.


2010 ◽  
Vol 19 (1) ◽  
pp. 71-78 ◽  
Author(s):  
A.K.M. Sayeed Hassan ◽  
Farhana Afroz ◽  
Miskat Ara Akhter Jahan ◽  
Rahima Khatun

A protocol was established for mass propagation of the valuable medicinal plant Ficus religiosa L. (Moraceae) through in vitro culture using apical and axillary buds of young sprouts from selected plants. Best shoot induction was observed on MS basal medium supplemented with 0.5 mg/l BAP + 0.1 mg/l IAA, in which 78 per cent of the explants produced 16 shoots per culture. Repeated subcultures in the same medium, resulted rapid shoot multiplication with 24 shoots per culture. In vitro raised shoots rooted on half strength MS supplemented with 2.0 mg/l IBA + 0.1 mg/l NAA. For acclimatization and transplantation, the plantlets in the rooting culture tubes were kept in normal room temperature for seven days before transplanting in pots where plantlets were reared for three weeks. The survival rate of regenerated plantlets was 85 per cent.  Key words: Ficus religiosa, Medicinal plant, Shoot proliferation, Regeneration,                   Acclimatization D.O.I. 10.3329/ptcb.v19i1.4987 Plant Tissue Cult. & Biotech. 19(1): 71-78, 2009 (June)


HortScience ◽  
2010 ◽  
Vol 45 (2) ◽  
pp. 260-264 ◽  
Author(s):  
Chia-Yun Ko ◽  
Tsai-Yun Lin ◽  
Chin-Wen Ho ◽  
Jei-Fu Shaw

To establish a mass micropropagation procedure for Cephalotus follicularis, the effects of varying the strengths of solid Murashige and Skoog (MS) medium were investigated using subcultured shoot explants. After a 60-day primary culture from root mass, the regenerated shoot explants were subcultured every 60 days in solid MS medium. To facilitate shoot proliferation, liquid MS medium was applied with or without exogenous auxin and cytokinin. Our results demonstrate that shoot proliferation and survival of C. follicularis is most effective in modified MS (MMS) medium containing one-fifth or one-tenth strength macronutrients and full-strength micronutrients. Successful shoot proliferation and development of C. follicularis explants were obtained in one-fifth or one-tenth modified liquid MS medium without auxin and cytokinin or with addition of 5 μM indole 3-acetic acid/1 μM N6-benzyladenine for 45 days. The liquid medium consistently produced more explants than the solid medium and shortened the culturing time. Plantlets cultured in hormone-free one-fifth MMS medium developed greater root systems. Using the liquid culture we established, vigorous plants with extensive roots were obtained within 4 months. Plant survival in the greenhouse reached 100%.


1970 ◽  
Vol 18 (1) ◽  
pp. 37-42 ◽  
Author(s):  
M. Jawahar ◽  
S. Ravipaul ◽  
M. Jeyaseelan

A rapid and efficient protocol was developed for inducing indirect organogenesis using leaf explants of Vitex negundo L. Explants were cultured on MS with different concentrations of 2,4-D and IAA in combination with BAP for callus induction. The frequency of callus induction increased with increasing concentration of IAA (0.3 mg/l) and BAP (0.3 mg/l) at optimal level. The shoot buds appeared emerging as green coloured protuberances on the callus. The high frequency of shoot bud initiation and shoot proliferation was observed on MS containing 0.3 mg/l IAA and 0.3 mg/l BAP. The regenerated shoots were successfully rooted on MS supplemented with 0.5 mg/l IBA. Rooted plants were transferred to pots containing sand, soil and manure in the ratio of 1 : 1 : 1. Nearly 90% survival of in vitro plants were recorded. Key words : Vitex negundo, In vitro, Leaf, Callus, Regeneration D.O.I. 10.3329/ptcb.v18i1.3263 Plant Tissue Cult. & Biotech. 18(1): 37-42, 2008 (June)


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