scholarly journals In vitro propagation of sweet potato (Ipomoea batatas (L.) Lam.) cultivars

2018 ◽  
Author(s):  
A. S. Abubakar ◽  
S. U. Yahaya ◽  
A. S. Shaibu ◽  
S. U. Yahaya ◽  
H. Ibrahim ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
In Vitro Regeneration ◽  
Naphthalene Acetic Acid ◽  
Shoot Height ◽  
Mean Values ◽  
Significant Difference ◽  
The Media ◽  
Planting Materials

The study is aimed at establishing a simple protocol for in vitro regeneration of sweet potato with a view to providing planting materials to farmers as well as basis for genetic improvement. Axillary buds were excised and cultured on Murashige and Skoog (MS) basal salts supplemented with 6-benzyl aminopurine (BAP), gibberellic acid (GA3) and naphthalene acetic acid (NAA) singly or in combination. The shoot height and number of leaves differed significantly among the cultivars. The result also indicated significant difference (p less than 0.01) among the cultivars with King J recording the highest mean values. Significant differences (p less than 0.05) was also recorded in the media combination with respect to organogenesis and number of shoots obtained. The results of hardening further revealed 33.33% success in the explants transferred directly to the field, as well as for the plantlets that were gradually weaned in a mixture of 3:1 sand and biochar.

scholarly journals Production of Virus Free Sweet Potato (Ipomoea batatas (L.) Lam.) through Meristem Culture and Chemotherapy

2020 ◽  
Author(s):  
Neja Jemal ◽  
Tileye Feyissa
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Shoot Multiplication ◽  
Enzyme Linked Immunosorbent Assay ◽  
Naphthalene Acetic Acid ◽  
Meristem Culture ◽  
Virus Diseases ◽  
Shoot Number ◽  
Planting Materials

Abstract Background: Sweet potato (Ipomoea batatas) ranks the seventh most important crop in the world. As it is propagated vegetatively, viruses accumulate from generation to generation and seriously affect its yield and quality. Currently virus diseases especially double infections are the major constraints of sweetpotato production. Meristem culture, chemotherapy and thermotherapy methods are suggested as the methods of choice to produce virus free planting materials although the success varies among different reports. The objective of this study was to produce virus free sweet potato planting materials through meristem culture and chemotherapy. The micropropagated plants were tested for the viruses. Results: All of the stock plants of the four varieties of sweet potato tested for 10 different viruses using Nitrocellulose Membranes Enzyme-Linked Immunosorbent Assay (NCM-ELISA) were found to be infected with Sweet potato feathery mottle virus (SPFMV). In addition, Sweet potato chlorotic stunt virus (SPCSV) was detected in ‘Ogensegen’ variety. Among the four varieties of sweet potato, ‘Beletech’ showed best performance resulting in 90% shoot initiation from meristem on MS medium containing 1.0 mg/l 6-benzyl amino purine (BAP), 2.0 mg/l Gibberellin (GA3) and 0.01 mg/l a-naphthalene acetic acid (NAA). In addition, the highest mean shoot number per explant (8.0 ± 6.2) was obtained from the same variety on shoot multiplication medium containing 2.0 mg/l BAP. This variety showed 100% rooting and 4.2±2.0 mean root number on growth regulator free medium. After acclimatization, 91.4% of plants survived. All in vitro propagated plants from meristem culture and shoots cultured on medium containing 20 mg/l and 30 mg/l ribavirin were virus free. Conclusions: This protocol can be used to produce virus free planting materials of sweet potato and distribute to the farmers to overcome the current serious sweet potato virus diseases in East Africa.

scholarly journals Investigating the Response to Meristem Culture of Four Regional Sweetpotato Varieties in the Western Highlands of Cameroon

2019 ◽  
Vol 8 (4) ◽  
pp. 1
Author(s):  
Eugene L. Tatah ◽  
Christopher T. Chi ◽  
Balgah A. Roland ◽  
Nardine D. Nsaidzeka
Keyword(s):  
Ipomoea Batatas ◽  
In Vitro Regeneration ◽  
Meristem Culture ◽  
Randomized Experimental Design ◽  
The Media ◽  
Number Of Leaves ◽  
Planting Materials ◽  
Staple Crop ◽  
Disease Free

In the Western highlands of Cameroon where sweetpotato (Ipomoea batatas L.) is an inevitable staple crop during the dry season, farmers cherish local which are presently under the risk of extinction due to accumulation of pest and diseases. Guaranteeing sustainable Sweetpotato production in this region therefore requires providing farmers with disease free planting materials such as tissue cultures. This study was conducted to investigate the feasibility of introducing disease free planting materials from meristem culture of EX-KOLB, EX-GUZANG2, EX-WIDIKUM3 and EX-NKAMBE1 which are four regional sweetpotato varieties common in the Western highlands of Cameroon. Test tubes containing growing media and meristems from each of the varieties were labeled and laid out in a completely randomized experimental design (CRD) with four replications and four treatments. Data on the number of sprouted meristems, number of rooted meristems, number of meristems contaminated, number of meristems that died, average heights of developed plants, average number of nodes on the developed plants, and average number of leaves on the developed plants was collected over a period of 8 weeks at 2 weeks interval. Meristems from all the landraces sprouted in the media used and the differences in the mean number of sprouted meristem between the landraces were significant (P<0.05). EX-GUZANG2 gave the highest mean of sprouted meristems of (2.75) and EX-WIDIKUM3 the lowest (0.75). According to ANOVA response of meristems from the four landraces to the media used differed significantly only in number sprouted, number of contaminated and number dead meristems as well as number of nodes(P<0.05). No significant differences were observed with number of contaminated and dead meristems, rooting as well plant height, number of leaves and nodes formed(P>0.05).This genotype-dependent response to media used for in vitro regeneration by plants has been observed by many studies. However meristems from EX-GUZANG2 and EX-KOLB showed greater positive respond to this media and merit further studies for the purpose of this experiment.

scholarly journals In vitro: Influence of Various Concentrations of Plant Growth Regulators (BAP & NAA) and Sucrose on Regeneration of Chenopodium quinoa Willd. Plant

2020 ◽  
pp. 34-43
Author(s):  
Fayza R. Al Gethami ◽  
Hameda El Sayed Ahmed El Sayed
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
In Vitro Regeneration ◽  
Chenopodium Quinoa ◽  
Naphthalene Acetic Acid ◽  
Cotyledonary Nodes ◽  
Half Strength ◽  
The Media

In vitro: regeneration of Chenopodium quinoa Willd. was achieved from cotyledonary nodes explants. In this study, used 6-Benzylaminopurine (BAP) and α-Naphthalene Acetic Acid (NAA) of plant growth regulators with different concentrations individually as well as in combination and used different concentrations of sugar (sucrose) with different concentrations. For was rooting, used half strength (½MS), full-strength MS and ½ MS supplemented with 0.2 mg/l of NAA. The results mentioned, explant responding (%) to multiplication was about 73% for all BAP treatments compared with control and average numbers of shoot increased with increased BAP concentration except 5 mg/l of BAP. The highest explant responding (%) was in media supplemented BAP without NAA compared other treatments noted that the media with combination of BAP and NAA gives formation of callus in bases of the plantlets. Also, the result inducted the combinations between (BAP–NAA) was highly significantly (P≤ 0.001) and less effective on number of shoots where the highest number of shoot was 3.40 in media with 3 mg/l BAP compared other treatments. The highest of explant responding 93.33% was in media supplement with 10 g/l sucrose and (10 g/l sucrose + 3 mg/l BAP), but sucrose level for good greening and developed shoots (4 shoots) was in medium supplement with 10 g/l sucrose. The shoots rooted well on half-strength MS medium with 60% percentage of root. The rooted shoots were acclimatized and transferred to green house to follow their development.

scholarly journals Effect of BAP (6-Benzyl Aminopurine) on In Vitro Shoot Growth of Curcumas

2021 ◽  
Vol 4 (1) ◽  
pp. 82-92
Author(s):  
Rustikawati Rustikawati ◽  
Catur Herison ◽  
Entang Inoriah ◽  
Vera Dwisari
Keyword(s):  
Shoot Growth ◽  
Shoot Formation ◽  
Experimental Unit ◽  
Shoot Height ◽  
Weight Percentage ◽  
Randomized Design ◽  
Significant Difference ◽  
Long Time ◽  
Planting Materials

Curcuma sp has been widely investigated for its anti-cancer properties. Conventionally, vegetative propagation needs a long time to produce a large number of planting materials, so that it is necessary to find an alternative approach through in vitro propagation.  The effect of BAP on the in vitro shoot formation of ‘temu putih’ and ‘temu putih’ has been investigated in this study. The experiment was a 4x2 factorial with 5 replications arranged in a completely randomized design.  The first factor was the concentration of BAP i.e. 0, 1.5, 3, and 4.5 ppm.  The second factor was the curcuma species consisting of ‘temu putih’ (Curcuma zedoaria Roch.) and ‘temu mangga’ (Curcuma mangga Val.).  Each experimental unit consisted of 2 in vitro bottles, each of which planted with 1 explant bud.  Analysis of variance was conducted on percentage of live explants, shoot height, number of roots, root length, wet weight, percentage of explants that sprouted, percentage of rooted explants and shoot color.  Mean comparison was performed by the Least Significant Difference (LSD).  The results showed that there was no interaction between BAP concentration and genotype on any variable observed.  The shoot growth of ‘temu putih’ was significantly higher than ‘temu mangga’ in vitro.  The best concentration of BAP for the growth of ‘temu putih’ and ‘temu mangga’ shoots was 1.5 ppm.

scholarly journals The Response of Vegetable Sweet Potato (Ipomoea batatas Lam) Nodes to Different Concentrations of Encapsulation Agent and MS Salts

Agronomy ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 19
Author(s):  
Shehu A. Tadda ◽  
Xiaohua Kui ◽  
Hongjuan Yang ◽  
Min Li ◽  
Zhehong Huang ◽  
...  
Keyword(s):  
Sodium Alginate ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Germplasm Conservation ◽  
Nodal Segments ◽  
Zygotic Embryogenesis ◽  
Simple Method ◽  
Long Shoots ◽  
Planting Materials

As an emerging technology, shoot encapsulation has been employed in germplasm conservation, distribution, and micropropagation of elite plant species. However, the production of synthetic seeds of sweet potato via non-zygotic embryogenesis requires a large number of embryos per cultured callus suspension and is labour-intensive. Here, we reported a simple method of encapsulating in vitro derived vegetable sweet potato nodal segments with sodium alginate, calcium chloride (CaCl2), and Murashige and Skoog (MS) salts. The nodes encapsulated with 4% sodium alginate (w/v) and 100 mM CaCl2 were the most suitable for propagation. They had uniform spherical beads and took the least number of days to shoot and root emergence. These plantlets produced more leaves, roots, and long shoots. Further evaluation of the MS salts concentration revealed that the plantlets encapsulated and grown with ½ MS salts had the least days to shoot and root emergence. They also had a longer shoot, the highest conversion rate (99%), and the least leaf abscission (17%). Thus, the sweet potato nodal segments encapsulated with 4% sodium alginate, 100 mM CaCl2, and ½ MS salts could be used as excellent material for micropropagation, germplasm conservation, and exchange of sweet potato planting materials.

scholarly journals Influence of Mercuric Chloride on Survival and Suitability for In Vitro Regeneration of Three Sweet Potato Landraces (Ipomoea batatas L.) Produced in Benin

2017 ◽  
Vol 4 (1) ◽  
pp. 56-64
Author(s):  
Arsène M. Doussoh ◽  
Justine Dangou-Sossou ◽  
Serge S. Houédjissin ◽  
Gilles H. T. Cacaï ◽  
Armel K. Assogba ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Mercuric Chloride ◽  
Ipomoea Batatas ◽  
In Vitro Regeneration

scholarly journals Standardization of plant growth regulators for successful tissue culture of sweet potato

2018 ◽  
Vol 16 (2) ◽  
pp. 178-181
Author(s):  
Jahanara Parvin ◽  
Mahbub Robbani ◽  
Md Fakhrul Hasan ◽  
Farhana Hoque
Keyword(s):  
Sweet Potato ◽  
Growth Regulators ◽  
In Vitro Regeneration ◽  
Naphthalene Acetic Acid ◽  
Nodal Segment ◽  
Ms Medium ◽  
Root Initiation ◽  
Shoot Initiation ◽  
Minimum Number

The experiment was carried out during the period from June 2016 to January, 2017 at the Plant Biotechnology Laboratory, Department of Horticulture, Patuakhali Science and Technology University (PSTU) for in vitro regeneration of sweet potato. In this study, the nodal segment explants and different combinations of growth regulators were used for in vitro regeneration of sweet potato. BAP (6-benzylamino purine) and KIN (Kinetin) were used for in vitro shoot regeneration and IBA (Indole-6- Butyric Acid) with NAA (Naphthalene Acetic Acid) were used for in vitro root regeneration. The highest percentage of shoot initiation (91.30), the minimum number of days (9.00) for shoot initiation, the highest number of shoot/plantlet (11.00) and the highest shoot length (4.38 cm) was observed when nodal segment explants cultured on MS medium supplemented with BAP 1.5 mg/L + KIN 0.1 mg/L. On the other hand, the highest root initiation percentage (94.12), the minimum number of days (6.00) for root initiation, the highest number of root/plantlet (9.33) and the highest root length (11.13 cm) was observed in the MS medium supplemented with IBA 0.5 mg/L + NAA 0.1 mg/L. Regenerated plantlets were acclimatized for 5 days and adopted in soil by 6-7 days of transplantation.J. Bangladesh Agril. Univ. 16(2): 178-181, August 2018

Pengaruh Profilaksis Ekstrak Ubi Jalar Ungu (Ipomoea batatas L.) terhadap Kadar Malondialdehida Hepar Tikus Putih (Rattus norvegicus) Jantan Galur Wistar yang Diinduksi Karagenan

2018 ◽  
Vol 15 (2) ◽  
pp. 146
Author(s):  
BRILIAN DINANTI ◽  
FITRI HANDAJANI
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Wistar Rats ◽  
Group Method ◽  
Control Group ◽  
Intraplantar Injection ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Potato Extract ◽  
Purple Sweet Potato

<p>Liver is an organ with complex metabolism. When the liver is inflamed, cellular immunity will defend against inflammatory agents by stimulating immune cells to produce reactive oxygen species (ROS). Excessive ROS accumulation cause oxydative stress with increased  liver malondialdehyde (MDA) level. Some researches showed that purple sweet potato contain flavonoids (anthocyanins) that functioned as antioxydants. This study aimed to show the prophylactic effect of purple sweet potato extract to the liver MDA level of male Wistar rats induced by carrageenan.</p><p>This study used post-only control group method using 18 male Wistar rats divided into 3 groups: group of rats without treatment, group of rats induced by 0,1 ml of 1% carrageenan by intraplantar injection on day-8, and group of rats given with 872 mg/kgBW of purple sweet potato extract for 7 days and induced by 0,1 ml of 1% carrageenan. In the end of the study, the liver MDA levels were measured by Thio-Barbituric Acid method on each groups.</p><p>The results of One-Way ANOVA test showed there was no significant difference (p = 0,290) between group of rats without treatment (<em>x̅</em>= 207,50) and group of rats induced by carrageenan (<em>x̅</em>=233,17). Then, there is no significant difference (p = 0.978) between group of rats induced by carrageenan and group of rats given with prophylactic purple sweet potato extract and induced by carrageenan (<em>x̅</em>= 232,50).</p><p>The conclusion of this study is giving intraplantar injection of carrageenan can increase liver MDA level insignificantly and giving prophylactic purple sweet potato extract has an effect to decrease the liver MDA level of rats induced by carragenan insignificantly because it contains anthocyanins as antioxidants.</p><p> </p><strong>Keywords: </strong>Liver, <em>Ipomoea batatas</em> L., Malondialdehyde, Anthocyanins

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