scholarly journals In vitro CULTURE OF BIG-SAGE (Lantana camara L.) PLANT

2020 ◽  
Vol 19 (2) ◽  
pp. 67-73
Author(s):  
Majid Abdulhameed Ibrahim ◽  
Manal Zebari Sabty ◽  
Shaimaa Hussein Mussa

The study was conducted to mass micropropagation of big sage (Lantana camara L.) plant by shoot multiplication technique. The treatments 2.22 and 2.66 µmol·L–1 BA gave the highest significant increase in the percentage of response to shoot multiplication and number of shoots per explant compared to the other treatments as reached 96.70% and 100.00% and 4.33 and 6.00 shoots, respectively. The results showed that these two treatments did not differ significantly between them. While the 1.33 µmol·L–1 BA gave the lowest values in the percentage of response to shoot multiplication and number of shoots per explant were 80.00% and 2.00 shoots per explant, respectively. The MS medium supplemented with 4.30 or 5.37 µmol·L–1 NAA gave a high response to root formation, number of roots per shoot and root length. While the MS medium supplemented with 6.44 or 7.52 µmol·L–1 NAA gave low values in these characteristics. The MS medium with 2.22 or 2.66 µmol·L–1 concentration of BA or 7.52 µmol·L–1 concentration of NAA recorded the highest significant increase in the percentage of response to callus formation. While the MS medium supplemented with 1.33 µmol·L–1 BA or 4.30 µmol·L–1 NAA gave less response to the callus formation.

2015 ◽  
Vol 49 (4) ◽  
pp. 199-204 ◽  
Author(s):  
S Mahmud ◽  
S Akter ◽  
IA Jahan ◽  
S Khan ◽  
A Khaleque ◽  
...  

A protocol was developed to produce large amount of callus in short a period of time from leaf explants of Stevia rebaudiana Bert. The highest amount of white callus was obtained on MS medium supplemented with 2.5 mg/l 2, 4-D and 0.5 mg/l BAP after 3 weeks of inoculating leaf segments. On the other hand, 0.5 mg/l BAP and 1.0 mg/l Kn exhibits poor performance towards callus formation while after using 1.0 mg/l Kn alone did not develop any callus. In this experiment, highest amount of green callus was obtained when MS medium supplemented with 2.5 mg/l NAA and 10% coconut water was used. An improved analytical method HPLC was applied to analyze stevioside extracted from the leaf and callus of Stevia rebaudiana. The stevioside in each sample were analyzed by comparing their retention times with those of the standards. The retention time (RT) of stevioside for leaves were found 14.96 and for callus 13.81 mins. The percentage of stevioside content from leaves and callus was 12.19% and 12.62% respectively DOI: http://dx.doi.org/10.3329/bjsir.v49i4.22621 Bangladesh J. Sci. Ind. Res. 49(4), 199-204, 2014


2016 ◽  
Vol 24 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Mafatlal M. Kher ◽  
Deepak Soner ◽  
Neha Srivastava ◽  
Murugan Nataraj ◽  
Jaime A. Teixeira da Silva

Abstract Clerodendrum phlomidis L. f. is an important medicinal plant of the Lamiaceae family, particularly its roots, which are used for various therapeutic purposes in a pulverized form. The objective of this study was to develop a standard protocol for axillary shoot proliferation and rooting of C. phlomidis for its propagation and conservation. Nodal explants were inoculated on Murashige and Skoog (MS) medium that was supplemented with one of six cytokinins: 6-benzyladenine, kinetin, thidiazuron, N6-(2-isopentenyl) adenine (2iP), trans-zeatin (Zea) and meta-topolin. Callus induction, which was prolific at all concentrations, formed at the base of nodal explants and hindered shoot multiplication and elongation. To avoid or reduce callus formation with the objective of increasing shoot formation, the same six cytokinins were combined with 4 μM 2,3,5-tri-iodobenzoic acid (TIBA) alone or in combination with 270 μM adenine sulphate (AdS). Nodal explants that were cultured on the medium supplemented with 9.12 μM Zea, 4 μM TIBA and 270 μM AdS produced significantly more and longer shoots than on medium without TIBA and AdS. Half-strength MS medium supplemented with 8.05 μM α-naphthaleneacetic acid was the best medium for root formation. Most (75%) in vitro rooted plantlets were successfully acclimatized under natural conditions.


Author(s):  
S. Vijayakumar ◽  
G. Rajalkshmi ◽  
K. Kalimuthu

An efficient protocol for propagation of Dendrobium aggregatum using the axenic immature seeds, derived from green capsule, was developed. The immature embryos from 120 days old capsules after pollination were germinated on Murashige and Skoog (MS) medium supplement with various concentration of BAP alone or in combination with NAA along with coconut water, and the same media were used for induction, multiplication, elongation and rooting in vitro shoots. MS medium with the addition of 3% sucrose 1.5 mg L-1 Benzyl amino purine (BAP) and 15% coconut water (CW) favoured the higher rate of germination, more number of protocorm like bodies, production of maximum number of shoots, elongation of shoots, as well as root formation. During acclimatization, 95% of the plantlets survived after one month.


2020 ◽  
Vol 73 (1) ◽  
pp. 9039-9046
Author(s):  
Rodrigo Alberto Hoyos Sanchez ◽  
Diego Chicaíza Finley ◽  
Juan Carlos Zambrano Arteaga

Carludovica palmata Ruíz & Pavón is a plant that belongs to the Cyclanthaceae family. Its commercial interest is related to the production of fibers for the manufacture of handicrafts, mainly the Panama hat, so it is important to study its propagation. This investigation aimed to determine the effect of 6-benzylaminopurine (BAP) in the formation of new shoots and 1-naphthaleneacetic acid (NAA) in the formation of roots, as well as the adaptation in greenhouse conditions of Carludovica palmata Ruíz & Pavón. In order to find the optimal multiplication rate, 0.5 cm length explants were planted in glass jars with 15 mL of semisolid MS with different concentrations of BAP and cultured under in vitro conditions for 90 days. The multiplication parameters in this stage were number of shoots per explant (NSE), length of shoots (LS), and length of roots (LR) as multiplication parameters. In a similar procedure, the number of roots per explant (NRE), length of roots (LR), and length of plantlets (LP) was determined using different concentrations of NAA. Finally, different substrates were evaluated for the adaptation of plantlets of C. palmata produced in vitro, under greenhouse conditions for 80 days. The highest multiplication rate (17±3 shoots per explant) was obtained with 2.0 mg L-1 of BAP. Root formation occurred efficiently in all treatments, without significant statistical differences between them. On the other hand, the use of substrate soil-t15 was the best treatment for the growth of C. palmata under greenhouse conditions. From the results obtained, it is concluded that C. palmata can be efficiently multiplied under in vitro conditions and did not present problems during the in vivo rooting process.


1970 ◽  
Vol 46 (3) ◽  
pp. 359-364
Author(s):  
AN Chowdhury ◽  
MZ Rahman ◽  
A Samad ◽  
AKMS Alam ◽  
S Khaleda

The effect of cytokinins on callus proliferation from cotyledons and plantlet development was studied in cotton. The frequency of callus induction was observed on MS medium enriched with a variety of cytokinins in different concentrations. With the increase of cytokinin concentration, the percentage of callus formation, percentage of shoot developing calli and number of shoots/calli were increased. Among the three different cytokinins studied, BA showed the highest performance. The highest percentage of callus (6.55%) and shoot developing calli (5.87%) was obtained on MS with 1.0 mg/l BA. Highest number of shoots (3.02) per calli was observed on MS media supplemented with 1.0 mg/l Kn. The rooting media composed of MS medium, 0.6% agar, sucrose and fortified with 2.0 mg/l NAA induced root development at the highest percentage (41.23%) with maximum number of roots (3.61) per cutting and length of root (3.62 cm) per culture. The plantlets were acclimatized in natural conditions. Key words: In vitro; Callus; Cotyledons; Cytokinin; Plantlet; Acclimatization DOI: http://dx.doi.org/10.3329/bjsir.v46i3.9043 BJSIR 2011; 46(3): 359-364


2013 ◽  
Vol 5 (3) ◽  
pp. 338-345 ◽  
Author(s):  
Swarna JAYAKUMAR ◽  
Ravindhran RAMALINGAM

Orthosiphon aristatus is a valuable medicinal plant and different parts of the plant are pharmaceutically used for the treatment of various diseases. The present study was designed to develop an efficient protocol for micropropagation of O. aristatus from nodal explants and to study the influence of additives on the enhancement of the number of shoots per explant. Among the different types of additives used, 10% coconut water and 30 mg/L glutamine added to Murashige and Skoog’s (MS) medium supplemented with 1.0 mg/L 6-benzyl amino purine (BAP) and 0.5 mg/L kinetin (KIN) was found to be most effective. Maximum number of shoots (44.07 ± 0.38) with 100% shooting response and shoot length of 7.47 ± 0.10 cm was recorded. In vitro rooting of the microshoots was achieved on half-strength MS medium containing 0.5 mg/L indole-3-butyric acid (IBA), producing an average of 30.27 ± 0.36 roots and 6.02 ± 0.20 cm root length. The rooted shoots were acclimatized with 100% survival rate on coco pith: soil (3:1) planting substrate and was successfully transferred to field conditions. The hardened plants exhibited homogeneity and no morphological variations were observed among the regenerants and the mother plants. Thus, the procedure described is a quick and reliable method which could be applied for efficient large-scale propagation, genetic transformation assays and secondary metabolite production.


Author(s):  
Girmay Mekonen ◽  
Meseret Chimdessa Egigu ◽  
Manikandan Muthsuwamy

Banana is a fruit crop which has high demand in Ethiopia, but its production is constrained by lack of disease free planting material with conventional propagation methods. For shoot initiation, shoot tip explants were cultured on MS medium supplemented with 0.5, 1.0, 1.5 and 2.0 mg/L BAP. Similarly, MS medium supplemented with BAP at 1.0, 1.5, 2.0 mg/L in combination with IBA at 0.25 and 0.50 mg/L were used for shoot multiplication. Half- strength MS medium augmented with IBA at 1.0, 2.0, 3.0 and 4.0 mg/l were used for root induction. MS medium without PGRs were used as controls. Finally, hardening of the in vitro derived plantlets was carried out in green house both in the primary and secondary acclimatization stages. Results showed that the highest shoot initiation percent (93.40%), highest mean number of shoots per explant (4.67) and lesser day for shoot induction (11.00) were observed in explant cultured on MS + 1.0 mg/L BAP. With shoot multiplication, highest shooting percent (92.60%), maximum number of shoots (7.67) and highest shoot length (5.27 cm) were recorded on MS + 1.5 mg/L BAP + 0.5 mg/L IBA. The highest rooting percent (93.40%), maximum root number per shoot (7.67) and highest root length (11.00 cm) were found on a half strength MS medium + 2.0 mg/L IBA. The survival rate of plantlets were 96.00% in coco peat substrate in primary acclimatization and 97.92% in forest soil, sand and manure substrates mixed at 3:2:1 ratio in secondary acclimatization. Overall, the result showed that the PGRs type, concentrations and combinations used are effective for mass propagation of banana variety studied in this experiment.


Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1079
Author(s):  
Jin-Ho Kim ◽  
Bo-Min Kwon ◽  
Thanh-Tam Ho ◽  
So-Young Park

Advances in micropropagation techniques have helped produce true-to-type clones of many horticulturally important plants. However, several cultivars of apple are difficult to root in vitro. In these cases, adventitious roots are induced together with undesirable formation of callus, which decrease the acclimatization rate of in vitro produced plantlets. In this study, two apple rootstocks, M9 and M26, were subjected to different concentrations of indole-3-butyric acid (IBA) to induce root formation. Although addition of IBA to the medium induced root formation, rhizogenesis was accompanied by the undesirable formation of callus in both cultivars. On the other hand, in gene expression analysis, the indole-3-acetic acid (IAA) synthase genes AAO1 and YUC1 were expressed more highly in M9 than in M26. This suggests that endogenous auxin levels may be higher in M9, which may explain why M9 plantlets are difficult to root and experience high levels of callus formation during propagation. In addition, rooting medium containing 0.1 mg·L−1 IBA was supplemented with different concentrations of phloroglucinol (0, 0.5, 1.0, and 2.0 mM) to examine whether direct rooting efficiency in the M9 could be improved. Addition of 1.0 mM phloroglucinol increased rooting percentage and decreased callus formation in the M9 rootstock. The rootstock M9 is a desirable cultivar but presents a problem with true-to-type direct rooting. Addition of phloroglucinol may improve direct rooting and eliminate callus formation during propagation.


2021 ◽  
Vol 13 (1) ◽  
pp. 24-30
Author(s):  
Waad S. Faizy ◽  
Rafail S. Toma ◽  
Yousif S. Tamer ◽  
Wisam Khaza'al

A reliable and successful micropropagation protocol was developed for pepino plant (Solanum muricatum Aiton) from nodal segment explants grown on MS medium. The best values of shoot multiplication traits were recorded from the addition of 3 mg.l-1 kinetin by producing 2.3 shoots/explant, 3.6 cm and 9.6 leaves/ explant which was significantly superior upon the addition of BA at the same levels. In case of adding 3 mg.l-1 kinetin, the best root formation attributes were achieved from the use of 0.2 mg.l-l IAA that resulted a maximum number of roots (14.33 roots/ explant). The longest root length (15.33 cm) was achieved when 0.3 mg.l-l IAA was used. A 100% rooting percentage was recorded from the all tested auxins including IAA, IBA and NAA. The gradually moved plantlets from the heterotrophic phase in the lab to the autotrophic phase in the greenhouse showed 100% success. The plantlets did not show any abnormal growth or morphological changes. It is concluded that this important plant can be easily propagated by tissue culture technique through a reliable micropropagation protocol.


2016 ◽  
Vol 2 (9) ◽  
Author(s):  
MRRIDULA DANGI NARWAL

Bacopa monnieri is commonly called as brahmi or jal brahmi in India. Brahmi is a non-aromatic herb Brahmi is considered as the herb played a very important role in Ayurvedic medicine. It is found easily India, Australia, Europe, Africa, Asia. Bacopa monnieri (L) belongs to the family Scrophulariaceae is an amphibious plant of tropical and normally found growing on the banks of the rivers and lakes. It is commonly called as brahmi or jal brahmi in India. Brahmi is considered as the main rejuvenating herb played a very important role in Ayurvedic therapies. It also has anti-inflammatory, analgesic, antipyretic, epilepsy, anticancer, antioxidant activities and recently antimycotic preoperty has been reported. The micro propagation protocol of the medicinally important plant Bacopa monnieri was standardized using nodal segments as explants. They were surface sterilized with HgCl2 (0.1%) for 3 minutes prior to inoculation on MS media supplemented with BAP (0.5- 2.5 mg/l); IAA (0.1-0.5 mg/l for shooting,1.0-1.5 mg/l for rooting); NAA (0.1- 0.5 mg/l for shooting, 1.0-1.5 mg/l for rooting). The best performance for shoot multiplication was showed in MS medium supplemented with 1.5 mg/l BAP + 0.5 mg/l IAA. In this combination the number of shoots per explant was 16 and average length of shoot 5.54 ± 0.54 cm. But when different concentrations of NAA were applied along with 1.5 mg/l BAP the number of shoots per explant was 14 and average shoot length was 3.46 ± 0.43 on media. For root induction, best rooting was observed with half strength of MS medium supplemented with IAA (1.0 mg/l). In this combination, it was observed that the number of roots was 12 and average root length of 2.80 ± 0.09. The present study is a stepping stone for in vitro production of required active principles of Bacopa monnieri.


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