scholarly journals In vitro host-free seed culture, callus development and organogenesis of an obligatory root-parasite Striga hermonthica (Del.) Benth: the witch-weed and medicinal plant

2011 ◽  
Vol 2 (1) ◽  
pp. 9 ◽  
Author(s):  
Faisal Hammad Mekky Koua ◽  
Fatima Misbah Abbas ◽  
Eisa Ibrahim Elgaali ◽  
Mutasim Mohammed Khalafallah ◽  
Hind Ahmed Ali Babiker
Keyword(s):  
Acetic Acid ◽  
Callus Induction ◽  
Sucrose Concentration ◽  
Folk Medicine ◽  
Striga Hermonthica ◽  
Seed Culture ◽  
Induction Rate ◽  
Root Parasite ◽  
The Witch

<p class="abstract"><em><span>Striga</span></em><span> <em>hermonthica</em> (Del.) Benth a well-known hemi-parasitic weed, it also has been used widely in African folk medicine to remedy broad spectra of diseases. The current contribution is an attempt to establish reproducible <em>in vitro</em> callusing system.<em> <span>In vitro </span></em>seedling’s stem segments were used as an explant for callus induction, in 1.5% or 3.0% sucrose added into Murashig and Skoog medium (MS) and supplemented with different auxins, α-Naphthalene-3-acetic acid (NAA), 2,4-dichlorophenoxy acetic acid (2,4-D), Indole-3-acetic acid (IAA), or Indole-3-butryic acid (IBA) at different concentrations each alone or in combination with cytokinin 0.5 mgl<sup>-1</sup> 6-benzyl aminopurine. The most effective auxin was NAA with maximum 79% callus induction rate. All auxin treatments induced callus in all concentration when used alone or combined with BAP, except 2,4-D, which induced the callus only when combined with BAP. A high sucrose concentration was required for high callus induction rate by all auxin treatments. IAA and IBA auxins induced direct shoot regeneration and had low callus induction rates. NAA, IAA and IBA induced organogenic calli, whereas 2,4-D in combination with BAP induced non-organogenic callus. We further screened preliminarily the phytochemical contents of the callus and intact plant, which was revealed the presence of flavonoids, terpenes, saponins, cardiac glycosides, alkaloids, tannins and coumarins. Experimental data of both seed culture and callus induction could provide a route to further enhance the efficiency of callus initiation of <em>S. hermonthica</em> for medicinal purposes and understanding the infection mechanism of the witch-weed plant.<strong> </strong></span></p><p class="abstract"><span style="font-size: 14px;"><em><br /></em></span></p>

Callus Induction and Plant Regeneration in Rauvolfia Serpentina (L.) Benth Ex. Kurz.

2009 ◽  
Vol 24 ◽  
pp. 82-88 ◽  
Author(s):  
Saraswoti Aryal ◽  
Sanu Devi Joshi
Keyword(s):  
Acetic Acid ◽  
Callus Induction ◽  
Coconut Milk ◽  
Ms Medium ◽  
Rauvolfia Serpentina ◽  
History Museum ◽  
Short Period ◽  
Murashige Skoog ◽  
Callus Tissue Culture

Rauvolfia serpentina (L.) ex. Kurz is an important medicinal plant. Callus induction and regeneration was studied from stem explant of in-vitro grown plant of Rauvolfia serpentina(L.) Benth. ex Kurz (Apocynaceae) on Murashige Skoog (1962) medium supplemented with 1mg/l 2,4-Dichlorophenocy acetic acid (2,4-D) and 1mg/l Kinetin (Kn). Vigorous growth of callus occurs after 4 weeks of culture. Callus was sub-cultured on Murashige and Skoog (MS) medium supplemented with different concentration of 2, 4-D (0.5-3.0 mg/l) and 10% coconut milk. Regeneration of plantlets occurred on MS medium containing 3 mg/1 of 2, 4-D and 10% coconut milk. These plantlets were rooted on MS medium supplemented with 1 mg/l IAA .The regenerated plantlets were able to grow on soil after short period ofacclimatization. Key words: Explant; In-vitro culture; MS medium;  2, 4 Dichlorophenoxy acetic acid; Kinetin; Callus; Tissue culture; Coconut milk. Journal of Natural History Museum Vol. 24, 2009 Page: 82-88

scholarly journals In vitro Regeneration of Dalbergia sissoo Roxb. and the Potential for Genetic Transformation

2012 ◽  
Vol 40 (2) ◽  
pp. 140 ◽  
Author(s):  
Hafiz Mamoon REHMAN ◽  
Iqrar Ahmad RANA ◽  
Siddra IJAZ ◽  
Ghulam MUSTAFA ◽  
Faiz Ahmad JOYIA ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Genetic Transformation ◽  
Callus Induction ◽  
In Vitro Regeneration ◽  
Induction Medium ◽  
Native Forest ◽  
Ms Medium ◽  
Dalbergia Sissoo ◽  
Callus Induction Medium

Dalbergia sissoo Roxb. ex DC. (Sissoo) is a native forest tree species in Pakistan. Many ecological and economical uses are associated with this premier timber species, but dieback disease is of major concern. The objective of this study was to develop a protocol for in vitro regeneration of Sissoo that could serve as target material for genetic transformation, in order to improve this species. Callus formation and plantlet regeneration was achieved by culturing cotyledons, immature seeds, and mature embryos on a modified Murashige and Skoog (1962) (MS) medium supplemented with plant growth regulators. Callus induction medium containing 2.71 ?M 2, 4-dichlorophenoxyacetic acid (2,4-D) and 0.93 ?M kinetin produced better callus on all explants tested compared to other treatments, such as 8.88 ?M 6-benzylaminopurine (BA) and 2.69 ?M ?-naphthalene acetic acid (NAA), or 2.71 ?M 2, 4-D and 2.69 ?M NAA. Shoot regeneration was best on MS medium containing 1.4 ?M NAA and 8.88 ?M BA compared to other treatments, such as 1.4 ?M NAA and 9.9 ?M kinetin, or 2.86 ?M indole-3-acetic acid and 8.88 ?M BA. Murashige and Skoog medium containing 1.4 NAA ?M and 8.88 ?M BA was better in general for regeneration regardless of callus induction medium and the type of explant used. Rooting was best on half-strength MS medium with 7.35 ?M indole-3-butyric acid. Regenerated plantlets were acclimatized for plantation in the field. Preliminary genetic transformation potential of D. sissoo was evaluated by particle bombardment of callus explants with a pUbiGus vector. The bombarded tissue showed transient Gus activity 1week after bombardment. Transformation of this woody tree is possible provided excellent regeneration protocols. The best combination for regeneration explained in this study is one of such protocols.

scholarly journals In vitro callus induction of gerbera from leaf explant

2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Sadia Afrin Jui ◽  
Md. Mijanur Rahman Rajib ◽  
M. Mofazzal Hossain ◽  
Sharmila Rani Mallik ◽  
Iffat Jahan Nur ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Growth Regulators ◽  
Callus Induction ◽  
Leaf Explants ◽  
Leaf Explant ◽  
Naphthalene Acetic Acid ◽  
Dichlorophenoxyacetic Acid ◽  
Ms Medium ◽  
Indole 3 Acetic Acid

The experiment was designed to evaluate the effect of growth regulators on leaf explant of Gerbera for callus induction. Various kinds of plant growth regulators such as 6-Benzylaminopurine (BAP), α-Naphthalene acetic acid (NAA), 2, 4-Dichlorophenoxyacetic acid (2, 4-D), Indole-3-acetic acid (IAA) were used to initiate cultures. These were added to Murashige and Skoog medium in different combinations and concentrations. Leaf explants cultured on MS medium supplemented with BAP+ 2, 4-D+ IAA in T4 treatment & BAP+ 2,4-D in T5 treatment showed the best results for callus induction. On the other hand callus was induced early in the combination of BA+ 2,4-D + IAA hormone in T5, T9 & T8 treatment respectively. The rate of callus induction was very low in BA + NAA combinations but it was much earlier.   

scholarly journals Establishment of an EfficientIn VitroRegeneration Protocol for Rapid and Mass Propagation ofDendrobium chrysotoxumLindl. Using Seed Culture

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Potshangbam Nongdam ◽  
Leimapokpam Tikendra
Keyword(s):  
Acetic Acid ◽  
Seed Germination ◽  
Germination Percentage ◽  
Naphthalene Acetic Acid ◽  
Mass Propagation ◽  
Asymbiotic Seed Germination ◽  
Orchid Species ◽  
Seed Culture ◽  
Leaf Formation

An efficientin vitroregeneration protocol from seed culture has been established successfully forDendrobium chrysotoxum, an epiphytic orchid having tremendous ornamental and medicinal values. Seed germination response was encouraging in Mitra (M) medium enriched with different combinations of auxins and cytokinins. Medium supplemented with 0.4% activated charcoal (AC), 2 mg/L 6-benzyl amino purine (BAP), and 2 mg/L indole-3-acetic acid (IAA) produced best seed germination percentage in 2 weeks of culture. Incorporation of higher concentration of kinetin (KN) or BAP in combination with low auxin in medium induced pronounced shooting and leaf formation. Reduction in leaf development was evident when cytokinins exist singly in medium indicating synergistic effect of auxin and cytokinin in leaf induction. Presence of elevated level of indole-3-butyric acid (IBA) or 1-naphthalene acetic acid (NAA) with low cytokinin content in medium generated morein vitrorooting, though IBA was found to be more effective in rooting induction as compared to NAA. Thein vitroprotocol for asymbiotic seed germination developed from the present investigation can be used for rapid mass propagation of this highly importantDendrobiumorchid species.

scholarly journals In Vitro Culture of Heuchera villosa ‘Caramel’

HortScience ◽  
2017 ◽  
Vol 52 (4) ◽  
pp. 622-624 ◽  
Author(s):  
Hua Q. Zhao ◽  
Qing H. He ◽  
Li L. Song ◽  
Mei F. Hou ◽  
Zhi G. Zhang
Keyword(s):  
Acetic Acid ◽  
In Vitro Culture ◽  
Butyric Acid ◽  
Shoot Regeneration ◽  
Ms Medium ◽  
Shoot Induction ◽  
Induction Rate ◽  
Regenerated Plantlets ◽  
Indole 3 Acetic Acid

The procedure for Heuchera villosa ‘Caramel’ propagation was investigated, which involves shoot regeneration, rooting of regenerated shoots, and acclimation of regenerated plantlets. Petioles, as explants, were cultured on MS medium supplemented with 1-naphthylacetic acid (NAA), benzylaminopurine (BA), thidiazuron (TDZ) and callus formed on all media. Shoots were observed to proliferate from callus on media with BA and NAA, whereas no shoots regenerated on media with TDZ and NAA. On media containing 0.5 or 1.0 mg·L−1 BA in combination with NAA, the regenerated shoots showed severe hyperhydricity, whereas on media containing 0.1 mg·L−1 BA in combination with NAA, the regenerated shoots grew normally. The highest shoot induction rate, 90.6%, was obtained on media containing 0.1 mg·L−1 BA and 0.01 mg·L−1 NAA. The effects of indole-3-acetic acid (IAA), indole-3-butyric acid (IBA), and NAA on rooting of H. villosa ‘Caramel’ was explored. The highest rooting rate (95%) was obtained on 1/2 MS medium containing 0.2 mg·L−1 NAA. In the subsequent acclimation experiments, about 85% of rooted plantlets survived and grew normally.

scholarly journals Sterilization procedure and callus regeneration in black turmeric (Curcuma caesia)

2019 ◽  
Vol 6 (49) ◽  
Author(s):  
A. S. Abubakar ◽  
R. N. Pudake
Keyword(s):  
Acetic Acid ◽  
Callus Induction ◽  
In Vitro Regeneration ◽  
Leaf Explants ◽  
Surface Sterilization ◽  
To Come ◽  
Dichlorophenoxy Acetic Acid ◽  
And Control ◽  
Rhizome Explants

Sterilization procedure, media composition, explants selection and control of physical environment are critical for successful cultures and callus induction with surface sterilization being very challenging in most plants. Five different sterilization methods were evaluated to come up with the best for subsequent use to establish an in vitro regeneration method for the induction of callus in Curcuma caesia using excised leaf and rhizome explants. Murashige and Skoog (MS) media supplemented with various concentration of 2,4-Dichlorophenoxy acetic acid (2,4-D)/Indole-3-acetic acid (IAA) (0.5- 5.0mg/L), singly or in combination with Benzyl aminopurine (BAP)/Kinetin (KIN) (0.1-5.0mg/L), 0.3% sucrose and 0.08% agar were used. The result of the sterilization procedures showed 15% NaHClO3 (5min) + 70% Ethanol (30s) + 0.1% HgCl2 (5min) to be the most effective in controlling contamination in C. caesia among all the treatments tested. The response to callus induction was found to depend on the type of explants used and growth regulators combination. Leaf explants gave the highest percentage of callus induction. Highest percentage of callus induction (66.70%) was obtained in the growth regulator combination of 2, 4-D (0.5mg/L) + BAP (0.1mg/L) and least (14.29%) in IAA (2.0mg/L) + BAP (0.5mg/L). Equal and higher concentration of 2, 4-D + BAP of 5.0mg/L each also provided better result (40.00%). No callus was obtained in all the single concentration of 2, 4-D used.

scholarly journals Effect of phytohormones on shoot apex and leaf explants of Withania somnifera (Ashwagandha)

2016 ◽  
Vol 8 (1) ◽  
pp. 412-415 ◽  
Author(s):  
Archana Rani ◽  
M. Kumar ◽  
Sanjeev Kumar
Keyword(s):  
Acetic Acid ◽  
Shoot Apex ◽  
Callus Induction ◽  
Withania Somnifera ◽  
Leaf Explants ◽  
Ms Medium ◽  
Mass Propagation ◽  
Best Response ◽  
Dichlorophenoxy Acetic Acid

An efficient protocol for callus induction of Withania somnifera through in vitro culture of shoot apex and leaf explant was standardized. Of the various combinations of phytohormones evaluated, MS media supplemented with 6-furfuryl aminopurine (KIN) 0.5 mg/l + 2,4-dichlorophenoxy acetic acid (2, 4-D) 2.0 mg/l was found to be bestfor mean callus induction (86%) in leaf explants after 6 weeks of culture and in case of shoot apex expant the best response and growth of callusing was observed on MS medium supplemented with 2,4-D 1.0 mg/l + BAP 2.0 mg/l (77%).The response of callus growth increases gradually with the reductions in concentration of KIN in culturemedium of both the explants. This protocol might be used in further research for mass propagation of W. somnifera via indirect regeneration methods.

scholarly journals CALLUS INDUCTION ON BANANA FLOWER’S EXPLANT IN VITRO USING 2,4-DICHLOROPHENOXYACETIC (2,4-D)

2018 ◽  
Vol 22 (2) ◽  
pp. 66
Author(s):  
RINDANG - DWIYANI ◽  
HESTIN - YUSWATI ◽  
UTAMI -
Keyword(s):  
Acetic Acid ◽  
Callus Induction ◽  
Naphthalene Acetic Acid ◽  
Dichlorophenoxyacetic Acid ◽  
Regeneration Medium ◽  
Indirect Organogenesis ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Banana Cultivar

ABSTRACT  The objective of the study was to obtain the best 2,4-D concentration on callus induction of the banana flowers in banana propagation using indirect organogenesis method. Kesuna, local banana cultivar obtained from Sembung Gede, Tabanan was used as explant material. Callus induction was performed using 2,4-Dichlorophenoxyacetic acid with concentration of 0; 0.5; 1.0; 1.5 and 2.0 ppm. Each treatment was represented by 3 bottles and each bottle was planted with 3 explants, so each treatment was represented by 9 explants of banana flowers. The results showed that the concentration of 2.0 ppm 2.4-D induced callus with the fastest time and gave the highest percentage of the explants producing callus. The calluses were subsequently subcultured into regeneration medium using 0.5 mg/L Benzylaminopurine (BAP) and 0.005 mg/L Napthaleneaceticacid (NAA). The calluses were subsequently sub-cultured into a regeneration medium using 0.5 ppm (BAP) and 0.005 ppm Naphthalene acetic acid (NAA) to induce shoots and roots and performed plantlets.   Keywords: 2,4-Dichlorophenoxyacetic acid, banana’s flowers, callus

scholarly journals Micropropagation and Conservation of Fig (Ficus Carica L.)

2019 ◽  
Vol 10 ◽  
pp. 1669-1679 ◽  
Author(s):  
Mohamad Shatnawi ◽  
Rida A. Shibli ◽  
Wesam G. Shahrour ◽  
Tamara S. Al-Qudah ◽  
Abu-Zahra Taleb
Keyword(s):  
Acetic Acid ◽  
Sucrose Concentration ◽  
Plant Root ◽  
Shoot Multiplication ◽  
Propagation Rate ◽  
Ficus Carica ◽  
Naphthalene Acetic Acid ◽  
Ms Medium ◽  
Shoot Height

An efficient protocol is outlined for rapid and mass micropropagation of Ficus carica L. (fig). Shoot tips (5 mm) were obtained from mother plants stock grown on half strength Murashige and Skoog (½ MS) medium with the addition of 30 g/L sucrose. For shoot multiplication Benzyl amino purine (BAP) and kinetin produced differences number of new shoot per plant and shoot height. BAP at 0.4 mg/L in combination with 0.2 mg/L indole-3-butyric-acid (IBA) produce maximum in vitro propagation rate, with 4.2 shoots per ex-plant. Root initiation was experimented on MS medium containing different concentrations of mg/L, IBA, IAA (Indole-3-acetic-acid) (IAA) or Naphthalene acetic acid (NAA). Highest number of root (4.3) was resulted when 1.5 mg/L IBA was used. After acclimatization in a mixture of (1 soil: 1 perlite: 1 peat) survival rate of 80% was achieved. For in vitro conservation of F. carica was experimented as microshoots were stored for 40 weeks on MS medium containing different sucrose concentration. Medium supplemented with 3% sucrose gave the highest regrowth (89%) at 24 ± 2 °C. Culture grew slowly when transferred to new fresh medium after the storage periods.

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