scholarly journals Improved in vitro rooting and acclimatization of “Violetta” Artichoke and “Green Globe” Artichoke

2021 ◽  
Vol 19 (1) ◽  
pp. 129-145
Author(s):  
Hoang Dac Khai ◽  
Nguyen Thi Nhu Mai ◽  
Hoang Le Lan Anh ◽  
Nguyen Nhu Minh Nguyet ◽  
Ho Viet Long ◽  
...  
Keyword(s):  
Large Scale ◽  
Economic Value ◽  
Shoot Multiplication ◽  
In Vitro Rooting ◽  
Globe Artichoke ◽  
Plantlet Production ◽  
Plantlet Quality ◽  
Number Of Shoots

Artichoke (Cynara scolymus L.), a medicinal plant with high economic value, contains high levels of phenolic compounds; especially cynarine, which plays an important role in preventing cancer, cardiovascular disease, osteoporosis, diabetes and neurodegeneration, etc. Currently, Artichoke micropropagation has achieved some success; however, the rooting efficiency and plantlet quality are still limited. In this study, improving the quality of Artichoke plantlet related to the shoot quality and suitable substrates in in vitro rooting stage was studied on “Violetta” Artichoke (VA) and “Green Globe” Artichoke (GA). The results showed that shoots (1.5 cm) cultured on MS medium supplemented 0.5 mg/L KIN were most suitable to shoot multiplication of VA with the number of shoots/explant (3.67 shoots), number of shoots ≥ 2 cm (3 shoots); while, 1.0 mg/L BA was suitable to shoot multiplication of GA (5.33 shoots; 5.00 shoots; respectively) after 4 weeks of culture. Besides, the in vitro rooting was improved using 8 g/L commercial agar for VA; meanwwhile, 3 g/L gelrite for GA. In addition, the nylon bag culture system (120 mm × 250 mm) has potential in plantlet production (15 plants/bag) and can be applied for large scale micropropagation. In addition, VA and GA plantlets derived from in vitro culture gave the good acclimatization, growth and development after 8, 12 and 20 weeks cultivating at the green house conditions.

scholarly journals Influence of Additives on Enhanced In vitro Shoot Multiplication of Orthosiphon aristatus (Blume) Miq.

2013 ◽  
Vol 5 (3) ◽  
pp. 338-345 ◽  
Author(s):  
Swarna JAYAKUMAR ◽  
Ravindhran RAMALINGAM
Keyword(s):  
Large Scale ◽  
Shoot Multiplication ◽  
Ms Medium ◽  
Morphological Variations ◽  
Different Types ◽  
Mother Plants ◽  
Half Strength ◽  
Different Parts ◽  
Number Of Shoots

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.

scholarly journals In Vitro Micropropagation of the Medicinal Plant Physalis angulata L.

2016 ◽  
Vol 8 (2) ◽  
pp. 161-163
Author(s):  
Owk ANIEL KUMAR ◽  
Songa RAMESH ◽  
Sape SUBBA TATA
Keyword(s):  
Large Scale ◽  
Leaf Disc ◽  
Basal Medium ◽  
Shoot Proliferation ◽  
Shoot Multiplication ◽  
Medicinal Herb ◽  
Root Induction ◽  
Survival Percentage ◽  
Physalis Angulata

Physalis angulata L. is an important medicinal herb. An efficient direct adventitious plant regeneration protocol was developed for large scale propagation using leaf disc as explants. The explants were cultured on MS basal medium supplemented with 0.25-3.0 mg/L 6-benzyl amino purine (BAP) for primary shoot proliferation. Inclusion of indole-3-acetic acid (IAA) and gibberellic acid (GA3) in the culture medium along with BAP promoted a higher rate of shoot multiplication. The maximum number of shoots was produced in MS + BAP (1.0 mg/L) + IAA (0.5 mg/L) + GA3 (0.20 mg/L) after the third subculture. An average of 152.8 ± 0.40 shoots were produced from each leaf disc. For root induction the shootlets were transferred to MS medium supplemented with different concentrations of indole-3-butyric acid (IBA). The highest percentage of root induction was observed in 1.0 mg/L (IBA). Rooted plants were successfully established in the soil after hardening. The survival percentage of rooted plants on soil was found to be 85%. This result will facilitate the conservation and propagation of the important medicinal herb Physalis angulata L.

scholarly journals Regeneration Technique of Bamboo Species through Nodal Segments: A Review

2020 ◽  
Vol 8 (1) ◽  
pp. 54-68
Author(s):  
Meena Maiya Suwal ◽  
Janardan Lamichhane ◽  
Dhurva Prasad Gauchan
Keyword(s):  
Large Scale ◽  
Physiological Stress ◽  
Perennial Grass ◽  
Shoot Multiplication ◽  
Nodal Segments ◽  
Individual Species ◽  
Small Scale ◽  
Scale Production ◽  
Bamboo Species

Micropropagation is an alternative technique to propagate at large scale plants to meet global plant demand. Various researchers have worked on the micropropagation technique to regenerate bamboo species by using nodal segments from years. Contamination, browning, necrosis, and acclimatization with physiological stress are the extreme problems of the micropropagation technique. But, many numbers of papers have been published on micropropagation of the bamboo species through nodal segments as explants. The proliferation of the bamboo shoots is dependent on the season of collection, size of explants, the position of explants, diversity of plants, concentration and combination of plant growth regulators, most adequate culture medium, environmental condition of the equipment, handling, and individual species. Bamboo is a monocarpic fast-growing, tall perennial grass and having the high potential to generate economic and social benefits. It helps to maintain land patterns and control soil erosion.  The long life cycle of the bamboo produces a huge amount of seeds but unfortunately, mostly, they are non-viable. So, bamboos are propagated from vegetative by cutting and air layering. However, these methods are only for a small scale and they also tend to destroy large mother plant stocks and difficult to be transported. So, the in vitro propagation technique is useful to obtain large progenies from desired genotypes. Mostly, BAP and TDZ growth hormones are widely used for shoot multiplication and IBA, NAA and IAA are used for root initiation as per developed protocols in tissue culture for large scale production. This review intends to explore an overview of the recent literature reports to summarize the importance of micropropagation by using nodal segments of bamboo species and factors influencing it.

scholarly journals Short-term storage in vitro and large-scale propagation of grapevine genotypes

2012 ◽  
Vol 47 (3) ◽  
pp. 344-350 ◽  
Author(s):  
Rafael de Carvalho Silva ◽  
Zanderluce Gomes Luis ◽  
Jonny Everson Scherwinski-Pereira
Keyword(s):  
Survival Rate ◽  
Large Scale ◽  
Culture Medium ◽  
Short Term ◽  
Minimal Growth ◽  
Short Term Storage ◽  
Term Storage ◽  
Storage Temperatures ◽  
Number Of Shoots

The objective of this work was to evaluate the large-scale propagation of grapevine genotypes after short-term storage in vitro. Microshoots from ten grapevine genotypes were used. The following storage temperatures were evaluated: 10, 20, and 25°C. After short-term storage, the shoots were propagated in up to five successive subcultures, to assess the large-scale propagation of the germplasm maintained under conditions of minimal growth. The propagated shoots were rooted in different concentrations of indolbutiric acid (IBA) and acclimatized in greenhouse. The best temperature for short-term storage in vitro and survival of the genotypes was 20°C. In the propagation phase, the highest number of shoots per explant was found in the subcultures 4 and 5, with averages of 4.9 and 4.8 shoots per explant, respectively. In the rooting phase, the best results for number of roots were obtained using a culture medium supplemented with 0.4 µmol L-1 of IBA, with an average of three roots per shoot. During the acclimation phase, a survival rate higher than 95% was achieved after 30 days in the greenhouse. Grapevine genotypes maintained for six months in vitro, at 20ºC, can be micropropagated in large scale.

scholarly journals INDUCING THE IN VITRO ROOTING OF SAGO PALM (Metroxylon sagu Rottb.) USING AUXIN

2015 ◽  
Vol 2 (2) ◽  
pp. 73
Author(s):  
Teuku Tajuddin ◽  
Karyanti . ◽  
Tati Sukarnih ◽  
Nadirman Haska
Keyword(s):  
Large Scale ◽  
Clonal Propagation ◽  
Positive Response ◽  
In Vitro Rooting ◽  
Root Induction ◽  
Sago Palm ◽  
Different Types ◽  
Superior Genotypes ◽  
Metroxylon Sagu

Tanaman sagu (Metroxylon sagu Rottb.) memiliki potensi yang besar sebagai sumber pangan, energi dan bahan baku industri. Kultur jaringan tanaman sagu telah dilakukan di Balai Pengkajian Bioteknologi BPPT dalam rangka perbanyakan genotipe atau aksesi unggul secara massal. Namun demikian, kendala utama yang dihadapi pada perbanyakan in vitro tanaman sagu adalah sulitnya pembentukan akar. Penelitian ini bertujuan untuk mendapatkan kombinasi hormon yang tepat dalam menginduksi perakaran tanaman sagu in vitro. Tunas anakan muda (15-20 cm) yang diperoleh dari daerah Rangkasbitung, Provinsi Banten digunakan sebagai eksplan. Dalam penelitian ini perakaran in vitro diinduksi dengan berbagai perlakuan jenis dan konsentrasi hormon auksin, konsentrasi medium dan jenis agar. Sebagai medium dasar digunakan medium Gamborg. Hasil penelitian menunjukkan bahwa konsentrasi IBA dan NAA yang terbaik adalah pada taraf 35 ppm. Selanjutnya Gelrite memberikan respon yang positif dengan munculnya perakaran pada pangkal eksplan.Kata Kunci: Induksi perakaran,  jenis agar, kultur in vitro, auksin, sagu ABSTRACTSago palm (Metroxylon sagu Rottb) has huge potential as food, energy and industrial bioresources. In vitro culture of sago palm was performed in Biotech Center, BPPT in order to obtain a large-scale of mass clonal propagation of superior genotypes. Nevertheless, the main obstacle for the sago palm in vitro propagation was rooting formation. The purpose of our study was to obtain the best hormones combination for root induction on sago palm shoots in vitro. The young suckers (15-20 cm) obtained from Rangkasbitung area, Banten Province, were used as explants. In our study, in vitro rooting was induced by different types and concentrations of auxin, medium strength and solidifying agents. The shoots were cultured on Gamborg media. The result showed that the best level of both hormones IBA and NAA for root induction was 35 ppm. Moreover the solidifying agent of Gelrite gave positive response by stimulating root at the basal-end.Keywords: Rooting induction, solidifying agent, in vitro cultures, auxin, sago palm

scholarly journals THE ROLL OF SOME PLANT GROWTH REGULATORS ON SHOOTS MULTIPLICATION OF STEVIA PLANTS IN VITRO

2017 ◽  
Vol 48 (5) ◽  
Author(s):  
Al-Obaidy & Khierallah
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Culture Media ◽  
Stevia Rebaudiana ◽  
Shoot Multiplication ◽  
Dry Weight ◽  
Fresh Weight ◽  
Number Of Shoots

This research was conducted to study the effect of some plant growth regulators on in vitro shoots multiplication of stevia (Stevia rebaudiana Bertoni). The experiments included tests of various combinations of KIN with IBA or IAA in the shoot multiplication. Results indicated that KIN at 1.0 mg. L-1 plus 0.3 mg. L-1 of IBA produced the highest number of shoots (3.5 shoots) while KIN at 1.5 mg. L-1 plus IBA at 1.0 mg. L-1 produced the lowest shoot length (1.14 cm).  Hormone free medium produced the highest rate of the leaves number reached 28.56 leaves. KIN and IBA interaction increased fresh and dry weight significantly.   Treatment contained 2.0 mg -1 KIN plus 0.3 mg. L-1 IBA produced the highest fresh weight (1.739 g) while 0.5 mg. L-1 KIN and 0.3 mg. L-1 IBA produced the highest dry weight (0.822 g). As for the effect of interaction between the IAA and KIN it was significant in the number of shoots formed. Interaction between 1.0 mg. L-1 KIN with 0.1 mg. L-1IAA produced the highest number of shoots (3.8 shoots). Shoots length reached 8.10 cm in the media with 0.3 mg. L-1 IAA only. The highest fresh weight (1.267 g) was achieved with the interaction between 1.0 mg. L-1 KIN and 0.3 mg. L-1 IAA while 0.5 mg. L-1IAA without KIN produced the highest dry weight reached 0.138 g.  Shoots multiplication was improved by incorporation of the cytokinin TDZ in culture media. Shoots number, fresh and dry weights were increased significantly by adding 0.05 mg. L-1 of TDZ at present of 0.3 mg. L-1 of IBA giving 6.6 shoots, 0.974 g and 0.144 g respectively while shoots length decreased significantly as media without TDZ produced the highest shoots length reached 9.32 cm. The above results can adopt for the successful in vitro shoot multiplication of Stevia plants. 

scholarly journals In Vitro Regeneration of Vitex negundo L., a Woody Valuable Medicinal Plant through High Frequency Axillary Shoot Proliferation

1970 ◽  
Vol 43 (3) ◽  
pp. 345-352 ◽  
Author(s):  
Farhana Afroz ◽  
AKM Sayeed Hassan ◽  
Laila Shamroze Bari ◽  
Rebeka Sultana ◽  
John Liton Munshi ◽  
...  
Keyword(s):  
Medicinal Plant ◽  
Large Scale ◽  
Shoot Proliferation ◽  
Shoot Multiplication ◽  
Multiple Shoots ◽  
Nodal Segments ◽  
Axillary Shoot ◽  
Vitex Negundo ◽  
Axillary Shoot Proliferation

An efficient protocol was established for rapid and large scale propagation of woody aromatic medicinal plant Vitex negundo L. by in vitro shoot multiplication from shoot tips and nodal segments of mature plant. Of the four different growth regulators BA, Kn, GA3, NAA and coconut water, MS fortified with BA 1.0 mg/l was found to be the most effective for inducing multiple shoots from nodal explants. The percentage (96%) of shoot multiplication per node (21.83) was highest up to second subculture passages, after which there was a gradual decline in shoot development. Best rooting was induced (93%) in excised shoots on half strength MS medium supplemented with an optimal combination of NAA (0.3 mg/l). Soil, compost and sand (1:1:1) mixture was the most suitable planting substrate for hardening. The survival rate was 80% and the regenerated plants were successfully transferred to the soil.Key words: Vitex negundo, Medicinal plant, Shoot proliferation, Micropropagation, RegenerationDOI = 10.3329/bjsir.v43i3.1149Bangladesh J. Sci. Ind. Res. 43(3), 345-352, 2008

The effect of Fe-EDDHA on shoot multiplication and in vitro rooting of Carlina onopordifolia Besser

2012 ◽  
Vol 34 (5) ◽  
pp. 2051-2055 ◽  
Author(s):  
Alina Trejgell ◽  
Ilona Libront ◽  
Andrzej Tretyn
Keyword(s):  
Shoot Multiplication ◽  
In Vitro Rooting

In vitro propagation of Camellia fascicularis: a plant species with extremely small populations

2020 ◽  
Vol 100 (2) ◽  
pp. 202-208
Author(s):  
Mengting Wang ◽  
Guiliang Zhang ◽  
Peiyao Xin ◽  
Yun Liu ◽  
Bin Li ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Large Scale ◽  
In Vitro Regeneration ◽  
Germplasm Conservation ◽  
Shoot Multiplication ◽  
Shoot Tips ◽  
Naphthalene Acetic Acid ◽  
Multiplication Rate ◽  
Ms Medium

Camellia fascicularis is an endangered evergreen ornamental plant with pale yellow flowers. An efficient and reproducible in vitro regeneration method is required for its large-scale propagation and germplasm conservation. In this study, one axillary bud per nodal stem was obtained from C. fascicularis cultured on Murashige & Skoog (MS) medium containing 0.1 mg L−1 indole-3-acetic acid (IAA) combined with 1.0 mg L−1 6-benzylaminopurine (BA). Axillary buds from the stem segments were transferred to modified woody plant medium (WPM) supplemented with 3.0 mg L−1 BA in combination with 0.3 mg L−1 IAA for multiplication, thereby resulting in a high shoot multiplication rate of 6.8. Multiple shoots were divided into nodal stems and shoot tips and were induced to root. The shoot tips were induced to root by culturing on one-half MS medium supplemented with 2.0 mg L−1 indole-3-butyric acid (IBA) in combination with 0.3 mg L−1 α-naphthalene acetic acid (NAA), which resulted in 76.0% rooting efficiency with 2.3 roots per shoot. The optimal hormone ratio for inducing rooting of nodal stems was 1.0 mg L−1 IBA in combination with 2.0 mg L−1 NAA, which resulted in 72.7% rooting efficiency with 1.7 roots per nodal stem. These two rooted plantlets were successfully acclimatized and established in a greenhouse.

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