scholarly journals Development of an in vitro Callus Induction Protocol and Shoot Proliferation for Selected Jatropha (Jatropha curcas) Accessions

2020 ◽  
Vol 30 (1) ◽  
pp. 131-141
Author(s):  
Hundessa Fufa ◽  
Jiregna Daksa
Keyword(s):  
Shoot Regeneration ◽  
Callus Induction ◽  
Jatropha Curcas ◽  
Plant Tissue ◽  
Leaf Explants ◽  
Shoot Proliferation ◽  
Adventitious Shoot ◽  
Regeneration Medium ◽  
Adventitious Shoot Buds

The present study was undertaken to establish a protocol for in vitro callusing of three Jatropha accessions, namely Metema, Adami Tulu and Shewa Robit from leaf explants. The medium supplemented with combination of 4.44 μM BAP and 4.52 μM 2,4-D resulted in maximum percentage of callus (100%) formed for all accessions. The maximum shoot regeneration (66.67%) from callus with 10.13 number of shoot was obtained from Shewa Robit in MS medum fortified with TDZ (2.27 μM ) and IBA (0.49 μM ). The presence of TDZ in the shoot regeneration medium has greater influence on the induction of adventitious shoot buds, whereas MS supplemented with BAP alone and combination with IBA did not induce shoot regeneration from callus culture. The results obtained in the present study would facilitate the high callus induction and regeneration responses in Jatropha for its improvement using biotechnological tools. Plant Tissue Cult. & Biotech. 30(1): 131-141, 2020 (June)

scholarly journals PCIB Enhances Regeneration of Ipomoea cordatotriloba Dennstedt Leaf Explants and Protoplasts

HortScience ◽  
1994 ◽  
Vol 29 (4) ◽  
pp. 327-328
Author(s):  
Ruth S. Kobayashi ◽  
John C. Bouwkamp ◽  
Stephen L. Sinden
Keyword(s):  
Abscisic Acid ◽  
Shoot Regeneration ◽  
Callus Induction ◽  
Leaf Explants ◽  
Dichlorophenoxyacetic Acid ◽  
Regeneration Medium ◽  
Ipomoea Cordatotriloba ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Chlorophenoxyisobutyric Acid

Leaf callus of Ipomoea cordatotriloba was initiated by culturing explants on Linsmaier and Skoog medium containing 3 g yeast extract/liter, 18.9 μm ABA, 2.3 μm 2,4-D, and 0.15 m sucrose. Calluses were transferred to Murashige and Skoog media containing 17.8 μm BA and 0, 1, 10, or 100 μm PCIB. The number of shoots from calluses grown on medium containing 10 μm PCIB increased significantly, and the percentage of calluses exhibiting shoot regeneration almost doubled compared to calluses grown on regeneration medium without PCIB. Protoplasts isolated from stem and petiole tissues of in vitro-grown plants were cultured in Kao and Michayluk 8p medium to the callus stage. Calluses (4-6 mm) were transferred to the callus induction and regeneration media used to regenerate leaf-explant callus. Of the protoplast-derived calluses cultured on media containing 10 or 100 μm PCIB, ≈13% and 18%, respectively, regenerated shoots after 2 months; none regenerated on the medium without PCIB. Chemical names used: abscisic acid (ABA); 2,4-dichlorophenoxyacetic acid (2,4-D); N6-benzyladenine (BA); α -p-chlorophenoxyisobutyric acid (PCIB).

scholarly journals In vitro Propagation of Ionidium suffruticosum Ging. ? A Seasonal Multipotent Medicinal Herb.

1970 ◽  
Vol 19 (2) ◽  
pp. 143-150
Author(s):  
Arunkumar B. Sonappanavar ◽  
M. Jayaraj ◽  
Asha N. Bagadekar ◽  
Anant V. Bhandarkar
Keyword(s):  
Key Words ◽  
Shoot Regeneration ◽  
Callus Induction ◽  
Plant Tissue ◽  
In Vitro Propagation ◽  
Leaf Explants ◽  
Callus Cultures ◽  
Medicinal Herb ◽  
In Vitro Shoots

Indirect regeneration of plant was obtained through organogenesis in leaf callus cultures of Ionidium suffruticosum. Leaf explants were found to be best suited for callus induction on MS with 2, 4-D (0.5 and 1.0 mg/l). Maximum shoot regeneration was obtained in MS supplemented with Kn (4.0 mg/l) alone and NAA (0.4 mg/l) with Kn (2.0 m/l).  The in vitro shoots thus obtained were successfully rooted in MS supplemented with Kn (4.0 mg/l) alone and with NAA (2.0 mg/l) and Kn (0.2  mg/l).  Seventy per cent of the rooted plants survived and they were successfully acclimated in soil. Key words: Ionidium suffruticosum, micropropagation, Medicinal herb D.O.I. 10.3329/ptcb.v19i2.5431 Plant Tissue Cult. & Biotech. 19(2): 143-150, 2009 (December)

scholarly journals Seed Germination and in vitro Plant Regeneration through Callus Culture of Two Lychnis Species

2015 ◽  
Vol 25 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Kee Hwa Bae ◽  
Eui Soo Yoon
Keyword(s):  
Plant Regeneration ◽  
Seed Germination ◽  
Callus Induction ◽  
In Vitro Propagation ◽  
Ornamental Plants ◽  
Leaf Explants ◽  
Adventitious Shoot ◽  
Temperature Treatment ◽  
In Vitro Plant Regeneration

Lychnis cognate Maxim and Lychnis fulgens Fish. Ex Spreng are two valued ornamental plants in Korea. Soaking of seeds in GA3 solution remarkably promoted germination up to 60%, but the control (0 mg/l) was not effective (> 5%). To select an adequate temperature for seed germination, seeds, previously soaked in a 1000 mg/l GA3 for 24 hrs, were incubated at 15, 20, 25, and 30°C. Seed germination of over 20% was obtained at 15, 20, and 25°C, but only 10% at 30°C. These results indicate that the seeds of L. cognate and L. fulgens are in a such dormant state that they hardly germinate even by dormancy breaker (GA3) and low (15 ? 25°C) temperature treatment. The highest callus induction was observed in the leaf explants of the seedlings on MS containing specific concentrations of 3.0 mg/l BA and 1.0 mg/l NAA. The adventitious shoot was formed < 90% of calli on 1/2 WPM medium. The height of in vitro propagated plantlet was no different media used for regeneration. This in vitro propagation protocol should be useful for conservation of endangered and ornamental plant.Plant Tissue Cult. & Biotech. 25(1): 1-12, 2015 (June)

scholarly journals In vitro propagation of six selected sugarcane mutant clones through leaf explants

2021 ◽  
Vol 883 (1) ◽  
pp. 012075
Author(s):  
R Purnamaningsih ◽  
D Sukmadjaja ◽  
S Suhesti ◽  
S Rahayu
Keyword(s):  
Callus Induction ◽  
Casein Hydrolysate ◽  
Leaf Explants ◽  
Shoot Proliferation ◽  
Medium Composition ◽  
Culture Techniques ◽  
High Productivity ◽  
Media Formulation ◽  
Number Of Shoots

Abstract Six mutant clones of sugarcane with high productivity have been produced through tissue culture techniques combined with mutations using gamma-ray irradiation and Ethyl Methane Sulfonate. The six mutant clones have been tested for stability in the field. They are proven to have high productivity and yields, so that they are very potential to be developed as superior varieties. To support the planting material sufficiency of these clones, an efficient propagation method was needed. Media formulations with different physical properties and composition of growth regulators were tested to obtain high seedling propagation rates. The media formulation for callus induction was Murashige dan Skoog (MS) + 3 mg/l 2,4-D + 3 g/l casein hydrolysate + 3% sucrose and for shoot regeneration was MS + 0,5 mg/l BA + 0,1 mg/l IBA + 100 mg/l PVP and 2% sucrose. Shoot proliferation was carried out on MS liquid (1, ½) + (0.3; 0.5 mg/l) BA + 0.1 mg/l IBA + 1 mg/l Kinetin + (0; 0.5 mg/l) GA3+ sucrose 2%. The results showed that callus induction, callus regeneration, and shoot proliferation of sugarcane mutant clones were influenced by the genotype and medium composition. The fastest callus induction was obtained from the MSP-4 clone (5.82 days), and the longest was MSB-7 (8.82 days). The largest callus diameter was obtained from MSB-6 clone on MS medium containing 1 mg/l BA, 100 mg/l PVP, and 2% sucrose. The highest number of shoots was obtained from the MSB-6 clone, while the least number of shoots conducted from the MSB-8 clone. The MSB-8 clones were more difficult to regenerate compared to the others. The best media formulation for shoot proliferation was ½ MS containing 0.5 mg/l BA, 1 mg/l Kinetin, and 0.1 mg/l IBA, while the best formulation for rooting was ½ MS.

scholarly journals In vitro somatic embryogenesis of superior clones of robusta coffee from Lampung, Indonesia: Effect of genotypes and callus induction media

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
Dwi Hapsoro ◽  
Rahmadyah Hamiranti ◽  
Yusnita Yusnita
Keyword(s):  
Somatic Embryogenesis ◽  
Callus Induction ◽  
Leaf Explants ◽  
Regeneration Medium ◽  
Embryogenic Calli ◽  
Robusta Coffee ◽  
Primary Callus ◽  
Ascorbic Acids ◽  
Superior Clones

Abstract. Hapsoro D, Hamiranti R, Yusnita Y. 2020. In vitro somatic embryogenesis of superior clones of robusta coffee from Lampung, Indonesia: Effect of genotypes and callus induction media. Biodiversitas 21: 3811-3817. This study aimed to investigate the effects of genotypes and primary callus induction media on somatic embryogenesis of superior robusta coffee clones of Lampung. Leaf explants of clones Tugusari, Komari, Tugino, and Wanto were cultured on two types of primary callus induction media (PCIM). PCIM1 consisted of half-strength MS salts, 30 gL-1 sucrose, added with (mgL-1) 0.1 thiamine-HCl, 0.5 nicotinic acids, 0.5 pyridoxine-HCl, 100 Myo-inositol, 200 ascorbic acids, 150 citric acids, and 1 benzyl adenine. PCIM2 consisted of NPCM salts, 30 gL-1 sucrose, added with (mgL-1) 15 thiamine-HCl, 1 nicotinic acid, 1 pyridoxine-HCl, 2 glycines, 130 Myo-inositol, 200 ascorbic acids, 150 citric acids, 1 2,4-dichlorophenoxyacetic acid, and 2 thidiazuron. The highest percentage (100%) of primary callus formation was found in Komari and Wanto clones. PCIM2 resulted in more primary calli than PCIM1. When subcultured to embryogenic callus induction medium, primary calli of clone Komari and Wanto developed into a high percentage of embryogenic calli, while those of the other two turned brown and died. PCIM2-derived primary calli developed into more embryogenic calli. When subcultured on somatic embryo (SE) regeneration medium, these calli underwent the formation of SE of various stages. When subcultured to plant regeneration medium, these SEs developed into plantlets.

scholarly journals Particle Bombardment of Apple Leaf Explants Influences Adventitious Shoot Formation

HortScience ◽  
1994 ◽  
Vol 29 (12) ◽  
pp. 1536-1538 ◽  
Author(s):  
P. Gercheva ◽  
R.H. Zimmerman ◽  
L.D. Owens ◽  
C. Berry ◽  
F.A. Hammerschlag
Keyword(s):  
Shoot Regeneration ◽  
Particle Bombardment ◽  
Dark Period ◽  
Leaf Explants ◽  
Adventitious Shoot ◽  
Shoot Formation ◽  
Regeneration Medium ◽  
Adventitious Shoot Formation ◽  
Shoot Production ◽  
And Control

Shoot regeneration from apple (Malus domestica Borkh.) leaf explants following particle bombardment at various acceleration pressures was studied. Basal leaf segments of micropropagated `Royal Gala' apple were bombarded with 1 μm gold particles, accelerated using helium pressures of 4.5, 6.2, 7.6, 9.3, or 13.8 MPa (650–2000 psi), and cultured on shoot regeneration medium consisting of N6 salts supplemented with 10 μM TDZ for 5, 10, or 20 days in darkness. Bombarded and control explants exhibited 63% to 100% shoot regeneration. With a 5-day dark period, average shoot production per explant ranged from 6.1 to 14; bombardments of 4.5 and 6.2 MPa significantly increased shoot production over the controls. With a 10-day dark period, average shoot production per explant ranged from 9.1 to 22 following bombardment at 9.3 and 6.2 MPa, respectively. Following bombardment at 6.2 MPa, 75% of the explants produced more than 20 regenerants per explant. With a 20-day dark period, average shoot production per explant ranged from 8.9 to 19 following bombardment at 13.8 MPa and following no bombardment, respectively. Shoot production per explant was significantly less than the controls following bombardments ranging from 6.2 to 13.8 MPa. Shoot production was highest per explant with particle bombardment at 6.2 MPa followed by incubation in darkness for 10 days. Chemical name used: thidiazuron (TDZ).

scholarly journals Adventitious Shoot Regeneration and Rooting of Prunus serotina In Vitro Cultures

HortScience ◽  
2006 ◽  
Vol 41 (1) ◽  
pp. 193-201 ◽  
Author(s):  
Ana Carolina Espinosa ◽  
Paula M. Pijut ◽  
Charles H. Michler
Keyword(s):  
Shoot Regeneration ◽  
Adventitious Shoots ◽  
Leaf Explants ◽  
Adventitious Shoot ◽  
Prunus Serotina ◽  
Naphthaleneacetic Acid ◽  
Eastern United States ◽  
Continuous Darkness ◽  
Number Of Shoots

A complete regeneration protocol was developed for Prunus serotina Ehrh., an important hardwood species for timber and sawlog production in the central and eastern United States. Nodal sections were cultured on Murashige and Skoog (MS) medium supplemented with 4.44 μm 6-benzylaminopurine (BA), 0.49 μm indole-3-butyric acid (IBA), and 0.29 μm gibberellic acid (GA3). In vitro leaf explants of three genotypes were placed on woody plant medium (WPM) supplemented with 0, 2.27, 4.54, or 6.81 μm thidiazuron (TDZ) in combination with 0, 0.54, 1.07, or 5.37 μm naphthaleneacetic acid (NAA), and on WPM supplemented with 0, 4.44, 8.88, or 13.32 μm BA in combination with 0, 0.54, 1.07, or 5.37 μm NAA. Cultures were maintained either in continuous darkness for 5 weeks, or in the dark for 3 weeks and then transferred to a 16-hour photoperiod. TDZ and the genotype had a significant effect on the number of shoots regenerated. The maximum mean number of shoots regenerated per explant (5.05 ± 1.14) was obtained with 2.27 μm TDZ plus 0.54 μm NAA with the 3-week dark period then light treatment. The highest percent shoot regeneration (38.3) and mean number of shoots (4.13 ± 0.97) was obtained with 6.81 μm TDZ plus 1.07 μm NAA. The highest rooting (27%) of adventitious shoots and number of roots per shoot (2.3 ± 0.2) was obtained with 2.5 μm IBA when shoots were maintained for 7 days in the dark on rooting medium before transfer to a 16-hour photoperiod. The highest rooting (70%) of nodal explant-derived stock cultures and number of roots per shoot (2.7 ± 0.9) was also obtained with 2.5 μm IBA, but when shoots were maintained for 4 days in the dark before transfer to a 16-hour photoperiod. In total, 86% of the plantlets survived acclimatization to the greenhouse and 100% survival after overwintering in cold-storage.

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