Copper and Zinc Induced Amelioration of In vitro Multiplication of Dendrocalamus strictus (Roxb.) Nees

2017 ◽  
Vol 40 (2) ◽  
pp. 181-184
Author(s):  
Manish Singh ◽  
◽  
Manpreet Kaur ◽  
Meena Bakshi ◽  
Satakshi Kapurwan ◽  
...  

Bamboos are among most significant plants worldwide and economically important forest resource in many countries of Asia. In vitro propagation is a potential and well known technique for mass multiplication of bamboo. Efforts were made for multiplication of Dendrocalamus strictus through aseptic nodal explants and its acceleration through heavy metal infusion. A rapid in vitro propagation protocol was established. Maximum germination with 100% survival rate was recorded in MS media supplemented with 1.0 mg/l BAP in combination with TDZ (0.25 mg/l) with a maximum shoot number of 9.36±0.67 and shoot length of 6.85 ± 0.95. The effects of copper and zinc were assessed on morphogenesis. The specific concentration of copper and zinc in MS medium were doubled (2x), quintuple pentadrupled (5x) and decupled (10x). The results revealed that maximum mean shoot number and mean shoot length was observed in quintuple pentadrupled zinc i.e. 6.80 ± 0.74 and 6.60 ± 0.80 cm respectively, however as concerned to copper, maximum shoot number (5.56 ±0.92) and shoot length (5.87 ± 0.78) were observed at similar concentration. Although copper and zinc are toxic for plants at higher concentration, but a good in vitro propagation response was observed in quintuple pentadrupled concentration.

2020 ◽  
Vol 23 (1) ◽  
pp. 178-190
Author(s):  
Jeillan Hussein ◽  
Diaa ibraheam

Marumi kumquat (Fortunella Japonica) is culture for its valuable nutritional value and medicinal importance in many regions of the world. The current study aimed to evaluate the effect of two types of media enriched with different concentrations of fructose and different plant growth regulators and different fructose concentration on in vitro propagation of Fortunella Japonica. The findings showed that the most effective treatment for explant surface sterilization was by using 0.1% HgCl2 for ten minutes which give best results for production contamination-free explants at the initiation cultures. At multiplication stage, WPM medium gave better results at all tested BA levels as compared with MS medium. No significant differences were showed by using BA alone or in combination with GA3 in the measured parameters. It has been observed that WPM medium supplemented with 0.5mgl-1 BA with the presence of 30mgl-1 fructose was able to give the highest shoot length (1.56cm) with maximum shoots number/explant 9.0 and highest leaves number/explant (21.0). The proliferated shoots were exposed to full strength MS medium salts supplemented with 2mgl-1 NAA which showed the highest ratio of rooting. In vitro rooted plantlets were gradually acclimatized and transferred to open air conditions, which recorded a high survive rate reached to 92%


Author(s):  
Rebaz Rasul Habas ◽  
Musa Turker ◽  
Fethi Ahmet Ozdemir

An efficient plant regeneration protocol was developed from in vitro germinated seeds of Petunia hybrida an ornamentally important plant in the family Solanaceae. Shoot tip and node explants of Petunia hybrida were cultured on MS basal medium supplemented with different concentrations and combinations of Benzyl amino purine (BAP), 1-Naphthaleneacetic acid (NAA), Indole-3-butyric acid (IBA) and Gibberellic acid (GA3). The highest shoot length was obtained from MS medium supplemented with 1 mg/l BAP + 1 mg/l NAA. The highest shoot number (3 shoots/explant) were obtained from MS medium supplemented with 0.6 mg/l BAP + 0.5 mg/l IBA. The isolated shoots were transferred to MS basal medium supplemented with different concentrations of GA3 ranging from 0.05, 0.2, 0.5 and 1 mg/l for shoot elongation. The highest shoot length (5.75 cm) was recorded from the MS medium supplemented with 0.2 mg/l GA3 +0.2 mg/l BAP. Rooting of regenerated shoots were achieved on MS medium supplemented with 0.1-1 mg/1 IBA and NAA. The regenerated shoots with well developed roots were successfully acclimatized and established in pots containing sterilized peat moss and grown under laboratory conditions with 70% survival rates.


2021 ◽  
Vol 49 (2) ◽  
pp. 12271
Author(s):  
Arleta KRUCZEK ◽  
Marcelina KRUPA-MAŁKIEWICZ ◽  
Ireneusz OCHMIAN

In recent years, Lycium chinense (goji) has become increasing popular because of its public acceptance as a “superfood”. Hence, the present study aimed to develop a rapid production technology by using in vitro culture to produce plants with high health value, throughout year and in desired quantities. A micropropagation protocol for growing L. chinense ‘No 1’ and ‘New Big’ cultivars was developed. The explants were grown on MS medium supplemented with different concentrations of meta-Topolin (0.4-0.8 mg L-1), and WPM and RA without plant hormones. Among the tested combinations, the maximum regeneration rate (95-97%) with the mean shoot length of 3.53-4.12 cm and mean shoot number of 1.42–1.58 (‘No 1’ and ‘New Big’, respectively) was recorded for plants grown on MS with 0.6 mg L-1 mT and WPM. For in vitro rooting, healthy roots (4.71-4.91 cm) were obtained on MS with the addition of 20 ppm chitosan. A maximum of 70–80% plantlets (‘No 1’ and ‘New Big’, respectively) regenerated on the medium with chitosan were successfully acclimatized and established in the mixture of 90% peat and 10% perlite under field conditions.


2013 ◽  
Vol 5 (4) ◽  
pp. 476-479 ◽  
Author(s):  
Yogeshwar MISHRA ◽  
Rimi RAWAT ◽  
Brajesh NEMA ◽  
Fatima SHIRIN

A method was developed for optimization of In vitro germination of an economically important timber-yielding multipurpose tree, Pterocarpus marsupium Roxb. The seeds inoculated in different orientation on different strengths of MS medium without any hormones showed varied response to the seed positions. The seeds inoculated on half strength medium in horizontal position recorded to produce a maximum germination (78.23%), shoot number (0.86) and root number (7.99). However, a maximum of shoot length of 3.67 cm was recorded in the quarter strength medium in the seeds inoculated in vertical down position, which was significantly higher than other media strength and positions. Our results indicate that the seed orientation including medium strength have tremendous effect on germination and seeds inoculated horizontally on half strength MS medium can be utilized to enhance In vitro seed germination of Pterocarpus marsupium.


Author(s):  
Poornima Raj ◽  
J. Anbumalarmathi ◽  
S. Aruna Sharmili

An experiment was conducted for standardization of in vitro propagation technique of Bacopa monnieri (L.), a medicinal herb of India. Healthy leaf segments of the herb were used as explants with basic Murashige and Skoog (MS) medium containing various combinations of different growth regulators for callus, shoot and root initiation. The best callus induction percentage (95.47%) was observed on MS + 0.5 mg/L NAA and 2.0 mg/L BAP (T3). The maximum number of shoots (8), shoot length (9.30 cm) and shoot induction percentage (90.48%) was achieved on MS + 3.0 mg/L BAP and 1.0 mg/L Kn (ST4). The maximum number of roots (8) and root length (7) was observed on MS + 1.5 mg/L IAA (RT5). The rooted micro shoots were successfully hardened and acclimatized in green house and subsequently established in soil with survival rate of 90%.


2020 ◽  
Vol 48 (3) ◽  
pp. 1504-1518
Author(s):  
Georgia VLACHOU ◽  
Maria Maria PAPAFOTIOU ◽  
Konstantinos Bertsouklis

The optimum range of temperature for germination (96-100%) of Calamintha cretica, an herb with potential pharmaceutical and horticultural uses, was 15 to 20 °C, with 10 and 30 °C cardinal temperatures. Storage up to one year did not affect germination. The effect of zeatin (ZEA), 6-benzyladenine (BA), kinetin, and 6-γ-γ-(dimethylallylamino)-purine added in MS medium at concentrations from 0.0 to 8.0 mg L-1 was tested for shoot proliferation of both adult- and seedling-origin nodal explants at first- and sub-culture. Both explant types responded similarly during in vitro culture. At cytokinin concentrations up to 1 mg L-1 explant response was high (over 85%) but shoot number per explant was low (1.2-2.2). Increasing cytokinin from 2.0 to 8.0 mg L-1 resulted to an analogous decrease of explant response and shoot length, and an increase of shoot number, particularly when ZEA or BA was used (5.0-6.6 shoots per explant, 0.5-1.0 cm long) with simultaneous though increase of hyperhydricity (up to 50%). The addition of 0.1 mg L-1 naphthaleneacetic acid into the 8.0 mg L-1 BA medium almost eliminated hyperhydricity and increased explant response, while the increase of agar concentration from 8.0 to 12.0 g L-1 eliminated hyperhidricity and induced the highest shoot proliferation (93-95% explant response, 11.2-12.3 shoots per explant, 0.8-1.0 cm long). Microshoots and microshoot clusters rooted (88-96%) on half-strength MS medium either hormone free or supplemented with 1 to 4 mg L-1 indole-3-butyric acid. Plantlets survived at 80% to 100% after ex vitro acclimatization in peat: perlite 1:1 (v/v).


2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Nahid Babaei ◽  
Nur Ashikin Psyquay Abdullah ◽  
Ghizan Saleh ◽  
Thohirah Lee Abdullah

A procedure was developed forin vitropropagation ofCurculigo latifoliathrough shoot tip culture. Direct regeneration and indirect scalp induction ofCurculigo latifoliawere obtained from shoot tip grown on MS medium supplemented with different concentrations and combinations of thidiazuron and indole-3-butyric acid. Maximum response for direct regeneration in terms of percentage of explants producing shoot, shoot number, and shoot length was obtained on MS medium supplemented with combination of thidiazuron (0.5 mg L−1) and indole-3-butyric acid (0.25 mg L−1) after both 10 and 14 weeks of cultures. Indole-3-butyric acid in combination with thidiazuron exhibited a synergistic effect on shoot regeneration. The shoot tips were able to induce maximum scalp from basal end of explants on the medium with 2 mg L−1thidiazuron. Cultures showed that shoot number, shoot length, and scalp size increased significantly after 14 weeks of culture. Transferring of the shoots onto the MS medium devoid of growth regulators resulted in the highest percentage of root induction and longer roots, while medium supplemented with 0.25 mg L−1IBA produced more numbers of roots.


2010 ◽  
Vol 62 (4) ◽  
pp. 1047-1052 ◽  
Author(s):  
Muhammad Aasim ◽  
Mahmood Khawar ◽  
Sebahattin Özcan

Cowpea is an important grain legume crop. The study reports an efficient in vitro multiplication and shoots regeneration protocol from preconditioned embryonic axes of the Turkish cowpea cultivar Akkiz. The embryonic axes were preconditioned with 10 mg/l BA on agar solidified MS medium for 5 days. Thereafter they were cultured on MS medium containing 0.25, 0.50, 0.75 and 1.00 mg/l BA with or without 0.10 mg/l NAA. Mean frequency (%) of shoot regeneration, number of shoots per explant and shoot length decreased with each increase in BA concentration used singly. However, a positive increase was recorded in all parameters in the presence of 0.10 mg/l NAA in the regeneration medium. A maximum mean number of 10.33 shoots per explant was recorded on an MS medium containing 1.00 mg/l BA -0.1 mg/l NAA. Regenerated shoots were rooted on an MS medium containing 0.50 mg/l IBA. Rooted plants were acclimatized at room temperature in soil mix contained in pots where they were subjected to an intermittent mistwater spray for 24 h that maintained 90% relative humidity during the first few days which was gradually reduced to 40% for 10 days. All plants flowered and set seeds in a greenhouse after 3 months.


2022 ◽  
Vol 52 (7) ◽  
Author(s):  
Julián Sebastián Ramírez Moreno ◽  
Sergio Andrés Vega Porras ◽  
Roosevelt Humberto Escobar ◽  
Elena E. Stashenko ◽  
Jorge Luis Fuentes Lorenzo ◽  
...  

ABSTRACT: This research described an efficient micropropagation protocol for Lippia origanoides (Verbenaceae). Sterile seeds were used to obtain germinated seedlings in Murashige and Skoog medium (MS) supplemented with sucrose and agar. The nodal segments obtained from seedlings were grown on MS medium supplemented with different concentrations of gibberellic acid (GA), benzylaminopurine (BAP) and 1-naphthalenacetic acid (NAA) with BAP. The callus induction, shoots length, shoots number and root length, were analyzed. The treatments showed high percentage of callus formation at 0.5 to 1.5 mg L-1 of BAP alone or in combination with NAA (0.1 mg L-1). The highest value of shoot number per nodal segments was obtained at 1.5 mg L-1 of BAP (4.3 ± 0.8). The obtained plantlets were better rooted in vitro in the absence of plant growth regulators (PGRs) and they showed acclimatization rate of 90%. We reported a protocol for in vitro propagation and acclimatization of L. origanoides for A chemotypes from Colombia.


2013 ◽  
Vol 31 (2) ◽  
pp. 210-215 ◽  
Author(s):  
Arvind Bhatt ◽  
Christine Stanly ◽  
Chan Lai Keng

The influence of cytokinin, N6-benzyladenine, on shoot proliferation of five Alocasia species (A. amazonica, A. cuprea, A. robusta, A. longiloba and A. chaii) was investigated. In vitro propagation of these species was established using shoot tip explants. Murashige & Skoog (MS) medium supplemented with different concentrations of BA (N6-benzyladenine) ranging from 0, 2, 5, 10 mg/L was then used to establish the optimum medium for shoot proliferation for all the species. MS medium supplemented with 2.0 mg/L BA was optimum for the shoot proliferation. All the tested species showed varying results for shoot number and shoot height. A comparison between agar-gelled medium and shake flask system using liquid medium was carried out to evaluate the shoot growth and proliferation for all the tested species. For A. amazonica, A. cuprea, A. robusta and A. longiloba, shake flask system using liquid medium of the same constituents stimulated more shoot proliferation as compared to agar-gelled medium. However, for A. chaii there was no significant difference. All the in vitro plantlets with well developed roots and leaves were successfully acclimatized with more than 90% survival rate.


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