scholarly journals In vitro multiplication of wild Manihot species with different naphthaleneacetic acid and benzylaminopurine concentrations

2021 ◽  
Vol 43 ◽  
pp. e52866
Author(s):  
Karen Cristina Fialho dos Santos ◽  
Deyse Maria de Souza Silveira ◽  
Antônio da Silva Souza ◽  
Jucieny Ferreira de Sá ◽  
Carlos Alberto da Silva Ledo ◽  
...  
Keyword(s):  
Tissue Culture ◽  
Plant Regeneration ◽  
Culture Medium ◽  
Culture Technique ◽  
Naphthaleneacetic Acid ◽  
In Vitro Growth ◽  
Mineral Salts ◽  
In Vitro Multiplication ◽  
Aseptic Culture

In vitro multiplication is an important tissue culture technique that is capable of efficiently producing seedlings at any scale. It is a propagation method based on the aseptic culture of small propagules in a suitable culture medium to enable plant regeneration. Multiplication experiments conducted in vitro to set protocols adapted to wild Manihot species have used modified mineral salts and MS vitamins as basic culture medium. Here, 25 treatments based on combinations of the regulators benzylaminopurine (BAP) and naphthaleneacetic acid (NAA) at 0, 0.025, 0.05, 0.075, and 0.1 mg L-1 were used for in vitro multiplication of three genotypes of wild Manihot species (M. violaceae Pohl Müll. Arg., M. pseudoglaziovii Pax & Hoff., and M. flabellifolia Pohl). Plant height and the number of 1 cm minicuttings, number of roots, shoots, green leaves and senescent leaves were recorded 120 days after explant inoculation. M. violaceae Pohl. Müll. Arg. and M. flabellifolia Pohl. presented favorable results with 0.05 and 0.025 mg L-1 NAA, respectively. Culture medium lacking NAA and BAP favored the in vitro growth of M. pseudoglaziovii Pax & Hoff.

scholarly journals Features of development of hametophytes Botrychium multifidum (S.G. Gmel.) Rupr. culture in vitro

2020 ◽  
Vol 24 ◽  
pp. 00043
Author(s):  
Igor Krinitsyn ◽  
Dmitry Zontikov ◽  
Svetlana Zontikova ◽  
A. Baghizadeh ◽  
P. Behroozi ◽  
...  
Keyword(s):  
Tissue Culture ◽  
Spore Germination ◽  
Culture Medium ◽  
Mineral Salts ◽  
Nutrient Media ◽  
Culture In Vitro ◽  
Initial Inoculum ◽  
Development Of Gametophytes ◽  
Ph Level

The work is devoted to studying the influence of the type of culture medium and pH on the development of gametophytes Botrychium multifidum in vitro. The spores obtained from sterilized sporangia were suspended in liquid nutrient media with initial inoculum of 10000 spores per 1 ml. Nutrient media tested in the study were composed of full Murashige and Skoog or Knudson mineral salts supplemented with kinetin (1 mg/l) and pH level 4.8-6.4. All stages of development, from spore germination to thallus and gametophyte formation, were observed in tissue culture. A low level of germinating spores was noted.

scholarly journals In vitro Fertilization in Iraqi Local Goats

2009 ◽  
Vol 3 (1) ◽  
pp. 5-9
Author(s):  
Hazim I. AL-Ahmed
Keyword(s):  
Tissue Culture ◽  
In Vitro Fertilization ◽  
Culture Medium ◽  
Polar Body ◽  
Culture Technique ◽  
Tissue Culture Medium ◽  
Vitro Fertilization ◽  
Cumulus Oophorus ◽  
First Polar Body

412 primary ova were used in the study of in vitro fertilization, these ova were collected from ovaries samples of does at different stages of oestrous cycle collected from abattoirs.These follicles were classified according to their size into large follicles (> 2-6 mm) and small follicles (1-2 mm). Ova aspirated from these follicles were evaluated depending on the presence or absence of cumulus oophorus cells and on the presence of the first polar body. The aspirated ova from large and small follicles were maturated in tissue culture medium 199 to study their ability of maturation.. The microdrops technique from tissue culture (Medium 199) and granulosa cell co-culture technique were used for the maturation of ova, also the in vitro fertilization was inducted in these ova with the sperm which were capacitated in Bracket Medium. The results showed that the highest rate for ova aspiration and the highest rate of ova surrounded by cumulas oophorus were from the large, follicles. The size of follicle has a significant influence on the degree of ova growth and maturation. The results showed the absence of significant differences in the efficacy of two techniques used in the ova maturation and their ability of fertilization.

scholarly journals 901 PB 538 STUDIES ON PROPAGATION OF GLOBE ARTICHOKE THROUGH TISSUE CULTURE TECHNIQUE

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 563b-563 ◽  
Author(s):  
Kh. A. Okasha ◽  
M. E. Ragab
Keyword(s):  
Tissue Culture ◽  
Culture Technique ◽  
Multiplication Rate ◽  
Globe Artichoke ◽  
Ms Medium ◽  
Free Living ◽  
Survival Percentage ◽  
Aseptic Culture ◽  
Low Rate

The aim of this study was to establish an effective method of micropropagation of globe artichoke from shoot-hp. This study involved establishment of an aseptic culture. multiplication of proliferated shook, rooting of these shook in vitro and adaptation of plantlets for free living Highest survival percentage with no contamination was achieved after sterilizing the explants with 70% ethanol (5 Sec.) + 1.5 % sodium hypochlorite for 20 min. The bast results of preventing browning of explants were obtained with 100 mg/1 ascorbic acid. The highest proliferated shook were obtained when shoot tip with 4 mm length (taken in mid March) were cultured on MS medium with 10mg/1 Kin. + 0.5 mg/l IAA. The highest multiplication rate was obtained when recultured on MS medium supplemented with 5 mg/1 Kin. + 0.5 mg/1 IAA. Multiplication rate gradually increased with increasing number of subculturing till Me third subculture but subsequent subculture (4th subculture) had a low rate.

scholarly journals In vitro growth of Brassocattleya orchid hybrid in different concentrations of KNO3, NH4NO3 and benzylaminopurine

2011 ◽  
Vol 29 (3) ◽  
pp. 359-363 ◽  
Author(s):  
Jean C Cardoso ◽  
Elizabeth O Ono
Keyword(s):  
Tissue Culture ◽  
Plant Tissue Culture ◽  
Plant Tissue ◽  
Ornamental Plants ◽  
Dry Weight ◽  
Ms Medium ◽  
In Vitro Growth ◽  
Mass Propagation ◽  
Mineral Salts

One of the most important applications of plant tissue culture is mass propagation of ornamental plants. This experiment evaluated the effect of different concentrations of NH4NO3 and KNO3 and BAP on the in vitro growth of orchid hybrid Brassocattleya 'Pastoral'. Seedlings of this orchid hybrid were used as explants and cultivated in medium with mineral salts and vitamins from the MS medium (Murashige & Skoog, 1962), with the macronutrients P, Ca and Mg reduced by half, and with an addition of 25 g L-1 of sucrose, 0.1 g L-1 of myo-inositol and 1.5 g L-1 of activated charcoal. Agar-agar was added (6.5 g L-1) and the pH was adjusted to 5.8. As treatments, four concentrations of the NH4NO3 and KNO3 (2x; 1x; ½ and ¼ MS medium) and three concentrations of BAP (0.0; 0.5 and 1.0 mg L-1) were assayed. The multiplication, growth in height, fresh and dry weight and sugar level in dry weight of sprouts were evaluated. There occurred a higher growth in height with 0.25x NH4NO3 and KNO3 salts concentrations of MS medium and higher rate of multiplication with combination of NH4NO3 and KNO3 reduced by half of the MS medium concentration and 1.0 mg L-1 BAP.

scholarly journals An Efficient In Vitro Propagation Protocol of Cocoyam [Xanthosoma sagittifolium(L) Schott]

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Anne E. Sama ◽  
Harrison G. Hughes ◽  
Mohamed S. Abbas ◽  
Mohamed A. Shahba
Keyword(s):  
Dimethyl Sulfoxide ◽  
In Vitro Propagation ◽  
Apical Meristem ◽  
Culture Medium ◽  
Naphthaleneacetic Acid ◽  
Liquid Media ◽  
Mineral Salts ◽  
Axillary Shoots ◽  
Xanthosoma Sagittifolium

Sprouted corm sections of “South Dade” white cocoyam were potted and maintained in a greenhouse for 8 weeks. Shoot tips of 3–5 mm comprising the apical meristem with 4–6 leaf primordial, and approximately 0.5 mm of corm tissue at the base. These explants were treated to be used into the culture medium. A modified Gamborg’s B5 mineral salts supplemented with 0.05 μM 1-naphthaleneacetic acid (NAA) were used throughout the study. Thidiazuron (TDZ) solution containing 0.01% dimethyl sulfoxide (DMSO) was used. Erlenmeyer flasks and test tubes were used for growing cultures. The effect of different media substrate, thidiazuron, and the interaction between TDZ and Benzylaminopurine (BAP) on cocoyam culture were tested. Results indicated that cocoyam can be successfully micropropagated in vitro through various procedures. All concentrations tested (5–20 μM BAP and 1–4 μM TDZ) produced more axillary shoots per shoot tip than the control without cytokinins. Greater proliferation rates were obtained through the use of 20 μM BAP and 2 μM TDZ, respectively, 12 weeks from initiation. Shoots produced with BAP were larger and more normal in appearance than those produced with TDZ, which were small, compressed, and stunted. The use of stationary liquid media is recommended for economic reasons.

scholarly journals Optimization Studies of Culture Media for In-Vitro Clonal Micropropagation of New Grape Varieties

2021 ◽  
Author(s):  
Abdulmalik Batukaev ◽  
Eliza Sobralieva ◽  
Diana Palaeva
Keyword(s):  
Culture Medium ◽  
Culture Media ◽  
In Vitro Regeneration ◽  
Mineral Salts ◽  
Additional Increase ◽  
Shoot Bud ◽  
Clonal Micropropagation ◽  
Aseptic Culture ◽  
Grape Varieties

This article describes the effect of Gautheret, White, Heller and Murashige & Skoog mineral salts during in-vitro clonal micropropagation of new grape varieties. The optimal mineral compositions of the culture medium that support the in-vitro regeneration of isolated grape explants were identified. The grapes that were studied were the Bart and Augustine varieties. Primary grape explants were cultivated for 30 days in a non-transplanted culture. Increased regenerative activity was observed in the Murashige & Skoog and White media. Increased haemogenesis occurred and shoots regenerated. The addition of cytokinin 6-BAP to the medium for obtaining aseptic culture led to an increase in the frequency of shoot-bud production by 5 to 6 times, depending on the type of medium. Combining 6-BAP with the auxin NAA provided an additional increase in the frequency of shoot-bud production, but to a lesser extent. Adding growth regulators to the culture medium also reduced the frequency of explant necrosis. Keywords: grapes, mineral salts, culture medium, microclonal propagation, in-vitro, cytokinins, auxins

scholarly journals In vitro organogenesis from internodal segments of adult sweet orange plants

2011 ◽  
Vol 46 (6) ◽  
pp. 672-674 ◽  
Author(s):  
Meire Menezes Bassan ◽  
Francisco de Assis Alves Mourão Filho ◽  
Luzia Yuriko Miyata ◽  
Beatriz Madalena Januzzi Mendes
Keyword(s):  
Plant Regeneration ◽  
In Vitro Culture ◽  
Culture Medium ◽  
Sweet Orange ◽  
Naphthaleneacetic Acid ◽  
In Vitro Plant Regeneration ◽  
Apparent Effect ◽  
In Vitro Organogenesis ◽  
In Vitro Plant

The objective of this work was to optimize in vitro plant regeneration via organogenesis from tissues of adult 'Hamlin', 'Pêra', and 'Valência' sweet orange plants. Explants were grown in EME culture medium with different concentrations of 6-benzylaminopurine (BAP) and naphthaleneacetic acid (NAA), at 27ºC in the absence of light for 50 days, followed by a 16-hour photoperiod for 20 days. Regeneration was assessed 50 and 70 days after in vitro culture. Organogenesis in cultivars Hamlin and Valência was promoted by EME supplemented with BAP, while NAA showed no apparent effect.

scholarly journals In Vitro Production of Erythropoietin by Kidneys Perfused With a Serum-free Solution

Blood ◽  
1974 ◽  
Vol 44 (1) ◽  
pp. 77-85 ◽  
Author(s):  
Allan J. Erslev
Keyword(s):  
Tissue Culture ◽  
Atmospheric Pressure ◽  
Culture Medium ◽  
Kidney Tissue ◽  
In Vitro Production ◽  
In Vitro Perfusion ◽  
Serum Free ◽  
Enzymatic Activation ◽  
Vitro Production

Abstract Normal rabbits exposed to 0.4 atmospheric pressure for 3 hr will generate about 40-60 U of erythropoietin during a subsequent 3-hr period. If the kidneys were removed from 3-hr hypoxic animals, washed carefully, and perfused for 3 hr by recirculation with a serum-tissue culture mixture, each kidney generated about 14 U of erythropoietin in vitro. Perfusion of normal kidneys did not result in the production of erythropoietin, and only small amounts were generated if the perfusate contained Puromycin. Three-hour hypoxic kidneys perfused for 3 hr with a serum-free tissue culture medium were found to generate about 8 U of erythropoietin per kidney and similar kidneys perfused with saline about 1 U. These results indicate that erythropoietin is synthesized by kidney tissue and not produced by enzymatic activation of a plasma substrate.

scholarly journals The Effect of Plant Growth Regulators on Callus Induction and Regeneration of Amygdalus communis

2011 ◽  
Vol 3 (3) ◽  
pp. 97-100
Author(s):  
Naimeh SHARIFMOGHADAM ◽  
Abbas SAFARNEJAD ◽  
Sayed Mohammad TABATABAEI
Keyword(s):  
Tissue Culture ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Base Material ◽  
Culture Technique ◽  
Induction Medium ◽  
Root Induction ◽  
Amygdalus Communis

The Almond (Amygdalus communis) is one of the most important and oldest commercial nut crops, belonging to the Rosaceae family. Almond has been used as base material in pharmaceutical, cosmetic, hygienically and food industry. Propagation by tissue culture technique is the most important one in woody plants. In the current research, in vitro optimization of tissue culture and mass production of almond was investigated. In this idea, explants of actively growing shoots were collected and sterilized, then transferred to MS medium with different concentrations and combinations of plant growth regulators. The experiment was done in completely randomized blocks design, with 7 treatment and 30 replications. After 4 weeks, calli induction, proliferation, shoot length and number of shoot per explants were measured. Results showed that the best medium for shoot initiation and proliferation was MS + 0.5 mg/l IAA (Indol-3-Acetic Acid) + 1 mg/l BA (Benzyl Adenine). Autumn was the best season for collecting explants. The shoots were transferred to root induction medium with different concentrations of plant growth regulators. The best root induction medium was MS + 0.5 mg/l IBA (Indol Butyric Acid).

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