Impact of Slight Change in Water Potential of Culture Media on In vitro Shoot Multiplication and Esterase and Protein Patterns of Simmondsia chinensis L.

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Ahmed M. Hassanein ◽  
A. Galal ◽  
G. Saad ◽  
D.M. Soltan
1970 ◽  
Vol 20 (2) ◽  
pp. 225-231 ◽  
Author(s):  
Meenakshi Banerjee ◽  
Priyanka Modi

Hot extract of Aulosira fertilissima (cyanobacterium) added in different proportions to MS as a liquid culture media for the in vitro propagation of Bacopa monnieri (L.) Pennell. Maximum numbers of shoots were induced from axillary node in MS media (40 ml) + Aulosira extract (60 ml) and maximum shoot multiplication was observed when Kn (1.0 mg/l) was added in the shoot initiation media (mentioned above). Surprisingly rooting was also found to be best in the same combination of MS + cyanobacterial extract that was used for initiation and multiplication of shoots. On an average within a period of three subcultures (2 - 3 months) the nodal explants generated 400 shoots.  Rooted plantlets were successfully transferred to the field, after acclimation in the net house.   Key words: Baccopa monnieri, Cyanobacterial extract, Regeneration, Acclimation   D.O.I. 10.3329/ptcb.v20i2.6917   Plant Tissue Cult. & Biotech. 20(2): 225-231, 2010 (December)


Author(s):  
Daniel da Silva ◽  
Angela Maria Imakawa ◽  
Kamylla Rosas Vieira Guedes ◽  
Flávio Mauro Souza Bruno ◽  
Paulo de Tarso Barbosa Sampaio

Libidibia ferrea (Fabaceae) is a valuable medicinal species in the Amazon, but as it is a protected plant, collection from natural populations is forbidden. Therefore, establishing an efficient system for in vitro regeneration and to improve callogenesis of this species is desirable. To determine the optimal nutritional factors needed for shoot multiplication and callus induction, different culture media, plant growth regulators and LED light sources were tested. The data were subjected to analysis of variance (ANOVA) and means compared by Tukey’s test at p < 0.05. We observe that explants inoculated in the Murashige and Skoog (MS) media with 0.05 mg L-1 of 6-benzilaminopurine (BAP) and cultivated under red-blue LED induced the highest number of shoots (3.67), number of buds (3.13), multiplication rate (15.67) and shoots length (22.03 mm) when compared with other treatments. MS and B5 media supplemented with 2.21 and 4.42 mg L-1 of 2,4-D induced 100% formation of friable callus cultivated under red-blue LED, demonstrating that the light quality significantly influenced callogenesis. Obtained results confirmed that in vitro regeneration and callogenesis is a useful strategy in the protection of endangered species. In this way, a new renewable source of biomass with high quality plant material is presented aiming at the bioprospecting of seedling extracts and friable callus to obtain secondary metabolites of this medicinal plant.


2016 ◽  
Vol 6 (2) ◽  
pp. 91
Author(s):  
Yati Supriati

<p>Micropropagation Efficiency of Banana cv Kepok<br />Amorang through Modifications of Culture Media and<br />Incubation Temperature. Yati Supriati. The budless<br />banana cv Kepok Amorang is potentially commercialized<br />due to its sweet taste and does not have flower bud, hence<br />reduced the potential of being infected by the blood disease<br />pathogen. Enhancement of banana industry needs continuous<br />supplies of large number banana seedlings. In vitro<br />culture enable the production of seedlings in a large scale,<br />uniform, quick. The research aims: (1) to formulate an<br />efficient medium for in vitro multiplication of cv Kepok<br />Amorang shoot, (2) to identify efficient growth environment<br />for in vitro culture of cv Kepok Amorang, and (3) to formulate<br />an efficient culture medium for roots inductions of cv<br />Kepok Amorang. The plant material used was in vitro culture<br />of Kepok cv Amorang, 2 cm in height without leaf and root.<br />The media formulation for shoot multiplication were full<br />strength, half strength, one fourth strength MS media,<br />supplemented with either 1, 3, or 5 ppm IBA. On optimization<br />step, the media tested were MS, Knop, Knop and<br />Heller, Hyponex N, Growmore N, and Rosasol N containing<br />of 1 ppm BA. The explants were incubated in culture room<br />with 8, 12, and 16 hours photoperiod with temperatures 30oC<br />(non air conditioned) and 25oC (air conditioned). The root<br />induction trial was done using MS, Knop, Knop and Heller,<br />Hyponex N, Growmore N, and Rosasol N media containing<br />of 1 ppm and 3 ppm IBA. The results showed that the best<br />medium formula for shoot multiplication was ¼ MS + 1 ppm<br />IBA. The best incubation condition was 16 hours photoperiods<br />at 30oC. The best media for root induction was<br />Hyponex 2 g/l + 1 ppm IBA. This culture method reduced<br />cost by Rp 261.7 per plantlet through efficiency of media<br />formulation and electricity use.</p>


Author(s):  
Jiangli Shi ◽  
Zhidan Dong ◽  
Chunhui Song ◽  
Beiyang Xie ◽  
Xianbo Zheng ◽  
...  

Rootstocks play a vital role in regulating the environmental adaptability and controlling the growth and development of apple trees. M9T337, an excellent apple rootstock widely used in commercial orchards, could confer dwarf tree architectures, early fruiting and suitability for high-density planting. However, the rooting ability of M9T3337 is low when it is vegetatively propagated, and researchers have not yet established an efficient micropropagation system. The present study systematically evaluated the multiplication in adventitious shoots and the in vitro formation of adventitious roots to determine the effects of the culture media and plant growth regulators of M9T337 and a rapid micropropagation system was developed. For the shoot multiplication, the highest multiplication index of 3.93 was obtained on Murashige and Skoog (MS) media supplemented with 2.0 mg/L 6-BA, 0.1 mg/L NAA and 0.3 mg/L GA3 from 12 combinations of 6-BA and NAA. Stronger and taller adventitious shoots were grown on MS supplemented with 1.8 mg/L 6-BA and 0.5 mg/L NAA. The optimal media with 100% rooting was obtained using ½ MS supplemented with 0.3 mg/L IBA or MS supplemented with 0.6 mg/L IBA for the rooting induction, resulting in mean rooting numbers of 13.00 and 11.33, respectively. Additionally, the effect on rooting of adding 0.3 mg/L IBA or not on the 1/2 MS and MS media was compared; the results suggested that an appropriate IBA concentration was the key to successful rooting. The rooted plantlets were acclimatised in a shaded greenhouse with an 84% survival rate. The established micropropagation system could be used for the rapid propagation of M9T337 for commercial production.


2017 ◽  
Vol 48 (5) ◽  
Author(s):  
Al-Obaidy & Khierallah

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. 


2015 ◽  
Vol 23 (2) ◽  
pp. 27-38 ◽  
Author(s):  
Rosen S. Sokolov ◽  
Bistra Y. Atanassova ◽  
Elena T. Iakimova

AbstractIn this study, the effects of compounds providing Fe in chelated (NaFeEDTA and Fe(III)AC) and non-chelated (FeSO4·7H2O) forms as components of culture media, onin vitroshoot multiplication and rooting ofMagnolia soulangeana‘Alexandrina’,Magnolia grandifloraandPrunus cerasifera‘Nigra’ were comparatively evaluated. Each of the tested chemicals was used as a single Fe source in the basal salt medium. In the stages of shoot multiplication and rooting plant response was scored by biometrical indices (number of shoots, leaves and roots, shoot and root length, percent of rooted plants and root hairs). The occurrence of physiological disorders was estimated by visual observations. In presence of FeSO4, symptoms of chlorosis, hyperhy-dricity, early senescence and specific morphology of roots, suggesting Fe deficiency, were observed. These deteriorations were entirely prevented at the application of Fe chelates of which, in this experimental systems, Fe(III)AC was tested for the first time. The addition of Fe(III)AC positively affected the plant quality to extent comparable to that of NaFeEDTA. The obtained data suggest that both applied Fe chelates are more appropriate than non-chelated Fe form and can be alternatively used in the optimization of nutrient media for micropropagation ofMagnoliaandPrunus cerasiferagenotypes.


2016 ◽  
Vol 8 (3) ◽  
pp. 1565-1569
Author(s):  
M. K. Sharma ◽  
R. S. Sengar ◽  
P. Chand ◽  
R. Singh ◽  
S. Gupta ◽  
...  

Present study deals with the optimization of various culture conditions for initiating high frequency in vitro shoot multiplication in two early maturing high yielding sugarcane genotypes namely Co98014 & Co89003. On the behalf of the findings of this study, it was concluded that the temperature, photoperiod and culture media pH affected the frequency of in vitro shoot multiplication in both sugarcane genotypes at a significant level. In both genotypes high frequency shoot multiplication was recorded at growth room temperature 25ºC, 16h/8h light/dark photoperiod and culture media pH 6.0. Genotype Co89003 exhibited highest shoot regeneration and multiplication under various culture conditions. The present study suggests the necessity of investigation of these culture conditions separately upon individual sugarcane genotypes prior to develop efficient in vitro plant regeneration protocol for commercial purposes.


HortScience ◽  
2012 ◽  
Vol 47 (1) ◽  
pp. 74-80 ◽  
Author(s):  
Cameron Northcutt ◽  
Daniel Davies ◽  
Ron Gagliardo ◽  
Kylie Bucalo ◽  
Ron O. Determann ◽  
...  

The genus Sarracenia forms a group of carnivorous pitcher plants native to North America. Habitat destruction and overcollection have caused pitcher plants to become rare, including U.S. federally endangered S. oreophila as well as S. leucophylla and S. purpurea spp. venosa (Raf.) Wherry, both listed as endangered in several states. Protocols for in vitro germination, sustainable shoot micropropagation, shoot establishment in soil, and seed cryopreservation are presented. Six-min sulfuric acid scarification treatments coupled with appropriate tissue culture media resulted in germination in vitro within 3 weeks, often reaching greater than 50%. Best germination for S. leucophylla and S. purpurea occurred on one-third strength Murashige and Skoog (MS) salts, whereas S. oreophila germinated best on one-sixth strength MS salts. Adjustment of pH to 4.5 to simulate a bog environment further increased germination for S. leucophylla. Shoot multiplication occurred at optimal levels when explants were placed on media in the presence of a cytokinin without auxin with greatest multiplication on 6-benzylaminopurine (BAP) or trans-zeatin and best shoot quality on trans-zeatin. Plant establishment in soil required both an in vitro rooting treatment and use of shoot clusters resulting in greater than 80% survival in soil. Seed cryopreservation tests with all three species suggest storage in liquid N2 followed by in vitro micropropagation and plant establishment can be used to preserve material long term.


2020 ◽  
Vol 13 (1) ◽  
pp. 1
Author(s):  
OTIH ROSTIANA

ABSTRAK<br />Anis (Pimpinella anisum L.) merupakan tanaman herba tahunan<br />yang termasuk ke dalam famili Umbelliferae. Buahnya diketahui<br />mengandung minyak atsiri yang didominasi senyawa trans-anethol (90%)<br />dan berkhasiat sebagai antiseptik, antispasmodik, antikanker, karminatif,<br />pelega tenggorokan, obat bronkitis, serta digunakan dalam pembuatan<br />sabun, parfum, pasta gigi, juga krim kulit. Sebagai tanaman bernilai<br />ekonomi, upaya perbanyakan anis perlu dilakukan. Perbanyakan secara in<br />vitro dengan teknik kultur jaringan merupakan salah satu metode alternatif<br />yang dapat digunakan untuk menghasilkan bibit dalam jumlah banyak,<br />seragam dan dalam waktu yang relatif singkat. Dengan penambahan<br />sitokinin sintetik tipe urea seperti thidiazuron (TDZ) dan tipe purin seperti<br />benzil amino purin (BAP) akan memacu inisiasi dan proliferasi tunas.<br />Penelitian ini bertujuan mendapatkan media yang tepat untuk menginduksi<br />tunas anis yang optimal dengan penambahan BAP atau TDZ, mengetahui<br />respon pertumbuhan dan penampakan kultur akibat penambahan berbagai<br />konsentrasi BAP atau TDZ, serta mempelajari sinergisme yang terjadi<br />antara keduanya. Pada tahap inisiasi, eksplan berupa tunas pucuk diinduksi<br />di dalam media MS padat dengan penambahan BAP (0,1 mg/l; 0,2 mg/l;<br />0,3 mg/l; 1 mg/l; 2 mg/l; 3 mg/l), atau TDZ dengan kisaran konsentrasi<br />yang sama. Tunas terbanyak yang dihasilkan dari dua jenis sitokinin pada<br />tahap ini disubkultur ke dalam media yang ditambahkan jenis sitokinin<br />yang berbeda (TDZ ke BAP atau BAP ke TDZ) pada konsentrasi 0,3 mg/l<br />atau 3 mg/l. Pada media yang ditambahkan TDZ dihasilkan tunas anis<br />lebih banyak (3,62-6,28) dibandingkan pada media yang ditambahkan<br />BAP (1,86-2,78), tetapi tunas yang dihasilkan pendek (roset). Sedangkan<br />tunas yang dihasilkan dalam media yang ditambahkan BAP beruas lebih<br />tinggi tetapi jumlah tunasnya sedikit. Subkultur tunas anis ke dalam media<br />yang diperkaya dengan sitokinin yang berbeda meningkatkan jumlah tunas<br />yang berproliferasi dan memperbaiki visual tunas.<br />Kata kunci: Anis, Pimpinellla anisum L. ,  minyak atsiri, multiplikasi tunas,<br />in vitro, TDZ, BAP, Jawa Barat<br />ABSTRACT<br />Application of purine and urea types of cytokinins in<br />shoot multiplication of Anise (Pimpinella anisum L.) in<br />vitro<br />Pimpinella anisum L. or sweet anise is an annual–herbaceous plant<br />belongs to the Umbelliferae family. The fruit of anise contains of essential<br />oil, which is mainly consisted of trans-anethol (90%). Essential oils of<br />anise is mainly used as an antiseptic, antispasmodic, anticancer,<br />carminative, expectorant and has also been used as component in soap,<br />perfumery, tooth paste, and skin cream productions. Since this crop is<br />mainly cultivated in sub tropical region, anise cultivation in Indonesia has<br />not been performed. To obtain sufficient numbers of anise planting<br />materials in vitro propagation was conducted by applying benzyl amino<br />purine (BAP) and thidiazuron (TDZ). In this research TDZ or BAP were<br />applied at various concentrations (0,1 mg/l: 0.2 mg/l; 0.3 mg/l; 1 mg/l; 2<br />mg/l; 3 mg/l), to induce shoots in MS-solid culture media. The highest<br />number of shoots obtained in those two type of cytokinins containing<br />media from the initiation stage were subcultured into the media<br />supplemented with different cytokinins (TDZ to BAP or BAP to TDZ) at<br />0.3 mg/l or 3 mg/l levels. The results showed that medium with the<br />addition of TDZ resulted in higher numbers of shoot (3,26-6,28) than that<br />of medium with an addition of BAP (1,86-2,78). However, rosette shoots<br />were dominant in TDZ containing medium. On the other hand, medium<br />with an addition of BAP resulted in less numbers of shoots with taller<br />nodes. Subculture of anise into different kinds of cytokinins increased the<br />numbers of proliferated-shoots and recovered the abnormal shoots.<br />Key words : Anise, Pimpinellla anisum L, essential oils, shoots<br />multiplication, in vitro, TDZ, BAP, West Java


2007 ◽  
Vol 6 (3) ◽  
pp. 309-315 ◽  
Author(s):  
Muhammad Azhar Bashir ◽  
Hamid Rashid ◽  
Muhammad Akbar Anjum

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