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Articles de revues sur le sujet « Shoot morphogenesis »

Auteur : Grafiati

Publié le 7 juin 2025

Mis à jour le 2 août 2025

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1

Maletskii, S., S. Yudanova, and E. Maletskaya. "The reproductive characters, phyllotaxis of the floral shoots and morphogenesis in sugar beet (Beta vulgaris L.)." Bulletin of Science and Practice., no. 2 (February 15, 2017): 63–77. https://doi.org/10.5281/zenodo.291829.

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The variability of some reproductive characters in sugar beet, to be more exact the phyllotaxis characters was investigated. Flowers (and fruits) on the sugar beet floral shoot are arranged spirally. One of the phyllotaxis characters is a distribution of the number of spirals in the shoot. This character is subject to the normal distribution law. The same kind of distribution is typical for other reproductive characteristics in sugar beet (number of fruits on the shoot, length of shoot).The spiral number per length unit on the floral shoot are also obeying to the normal distribution and varyin

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Wood, Bruce W. "Axillary Shoot Abscission in Pecan and Its Relationship to Growth Regulators." Journal of the American Society for Horticultural Science 113, no. 5 (1988): 713–17. http://dx.doi.org/10.21273/jashs.113.5.713.

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Abstract The relatively low incidence of axillary shoot development in pecan [Carya illinoensis (Wangenh.) C. Koch] and its detrimental impact on nut productivity prompted: 1) an evaluation of methods to induce axillary shoot morphogenesis, and 2) estimation of levels of endogenous phytohormones in abscising and nonabscising axillary shoots. Retention of developing shoots from 1-year-old terminals was increased three-fold by ringing. Application of benzyladenine (BA) delayed, but did not prevent, shoot abscission, whereas abscisic acid (ABA), indoleacetic acid (IAA), and gibberellic acid (GA3)

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Skupchenko, V. B. "Changes in the Shoot Apical Meristem with Decrease in Illumination within the Crown of <i>Pseudotsuga menziesii</i> (Pinaceae) Introduced in St. Petersburg." Растительные ресурсы 59, no. 4 (2023): 378–93. http://dx.doi.org/10.31857/s0033994623040118.

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Abstract—In Pseudotsuga menziesii Mirb. Franco introduced in St. Petersburg, the changes in the apical meristem morphogenesis during the formation of a short bud shoot with covering scales and meristematic primordium of shoot with needles, under the decrease in illumination within the crown were studied. Terminal 1–4-year-old shoots of the third-order branches in the lower part of the crown with a relative light availability (RLA) in the range of 23.9–18.3% perform full annual cycle of morphogenesis of the shoot apical meristem. Before each stage of morphogenesis, the apical meristem performs

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Kutas, Elena, Aleksandr Veyevnik, Vladimir Titok, and Lyubov Ogorodnik. "Morphogenesis Introduced Varietes Of Vaccinium Vitis-Idaea L. In Culture In Vitro." International Journal of Sciences Volume 4, no. 2015-02 (2015): 31–34. https://doi.org/10.5281/zenodo.3348853.

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The results of experimental studies of morphogenesis of four introduced varietes cowberry ('Koralle', 'Masovia', 'Erntedank', 'Erntekröne') in culture in vitro on three types of nutrient media of nine modifications. It was found, that of all the investigated types of nutrient media among the most active shoot formation and rhizogenesis was observed on the medium WPM (№ 8) and Anderson (№ 9). This demonstrates a proof of universality of these types of media for both morphogenetic processes: shoot formation and rhizogenesis. On the basis of study of morphogenesis of explants proceeding from the

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5

T.O., Scherbakova, and Rakhmetov D.B. "The morphogenesis of Miscanthus sinensis Anderss. monocarpic shoot due to introduction in Forest-Steppe and Polissya of Ukraine." Plant Introduction 67 (September 1, 2015): 11–16. https://doi.org/10.5281/zenodo.2526990.

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The morphogenesis of <em>Miscanthus sinensis</em> Anderss. monocarpic shoot in conditions of the introduction of the Forest- Steppe and Polissya of Ukraine has been described. Five phases of shoots morphogenesis (phase of developing bud (embryonic phase), phase of unfolding of squama and rhizomatous growth, phase of the developing inflorescence and stem, flowering phase and phase of secondary rhizomatous activities) have been identified. Terms of phase duration and morphological characteristics of shoots at every stage of development have been found. It was established that the duration of the

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Traas, Jan. "Morphogenesis at the shoot meristem." Comptes Rendus. Biologies 345, no. 4 (2022): 1–20. http://dx.doi.org/10.5802/crbiol.98.

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Jaidka, Kanchan, and P. N. Mehra. "Morphogenesis in Punica granatum (pomegranate)." Canadian Journal of Botany 64, no. 8 (1986): 1644–53. http://dx.doi.org/10.1139/b86-220.

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Explants of root, hypocotyl, cotyledon, stem, shoot tip, and leaf of seedlings obtained by in vitro germination of seeds, as well as embryos excised from seeds, were utilized for the induction of callus. Murashige and Skoog basal medium supplemented with naphthaleneacetic acid (4 ppm), kinetin (2 ppm), and coconut water (15%) was found to be optimal for induction and growth of callus from all explants. Growth rate experiments were performed with callus to study the effect of different growth regulators at various concentrations. The calluses were heterogeneous in nature and consisted predomina

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Echevin, Emilie, Constance Le Gloanec, Nikolina Skowrońska, Anne-Lise Routier-Kierzkowska, Agata Burian, and Daniel Kierzkowski. "Growth and biomechanics of shoot organs." Journal of Experimental Botany 70, no. 14 (2019): 3573–85. http://dx.doi.org/10.1093/jxb/erz205.

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AbstractPlant organs arise through complex interactions between biological and physical factors that control morphogenesis. While there has been tremendous progress in the understanding of the genetics behind development, we know much less about how mechanical forces control growth in plants. In recent years, new multidisciplinary research combining genetics, live-imaging, physics, and computational modeling has begun to fill this gap by revealing the crucial role of biomechanics in the establishment of plant organs. In this review, we provide an overview of our current understanding of growth

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Afonin, A. A. "METAMERIC VARIABILITY OF SALIX TRIANDRA (SALICACEAE) INTERPODE LENGTH." Scientific Life 15, no. 11 (2020): 1461–73. http://dx.doi.org/10.35679/1991-9476-2020-15-11-1461-1473.

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The article presents the praxeological characteristics of the three-stalked willow (Salix triandra, genus Salix, family Salicaceae). Object: inbred model population of S. triandra. Material: annual shoots obtained on the same seedlings in different years from vegetative buds of different localization. Methods: comparative morphological, chronobiological, ontogenetic, analysis of the series of dynamics. Purpose: to describe and analyze the patterns of ontogenetic variability of the length of internodes on annual shoots. Results. The general variability of the length of internodes is determined,

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Daquinta, M., L. Ramos, I. Capote, Y. Lezcano, R. Rodríguez, and M. Escalona. "Morphogenesis in vitro of Teak (Tectona grandis L.)." Forest Systems 11, no. 1 (2002): 137–44. http://dx.doi.org/10.5424/763.

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The rescue of commercial species is a priority for biotechnology to increase multiplication rate and develop reforestation. Such programmes can be carried out simultaneously with the development of the country to mantain the ecosystem natural equilibrium. Teak (Tectona grandis L.) is a forest tree of high commercial and ecological value because of its rapid growth and wood quality. Teak is a specie with problems in the propagation as a result of its high genetic variability. For this reason, alternatives to produce propagules have been developed. With the aim to obtain plants regeneration from

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El-Naggar, Hany M., Ashraf M. Shehata, Maneea Moubarak, and Amira R. Osman. "Optimization of Morphogenesis and In Vitro Production of Five Hyacinthus orientalis Cultivars." Horticulturae 9, no. 2 (2023): 176. http://dx.doi.org/10.3390/horticulturae9020176.

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To maximize the economic benefits of Hyacinthus orientalis L., the micropropagation and morphogenesis induction of five Hyacinthus cultivars were investigated under four different concentrations of indole acetic acid (IAA) with two cytokinins, benzyl adenine (BA), or kinetin (Kin). Days for morphogenesis initiation and shoot formation in the red cultivars were fewer than in the blue and white cultivars. Blue cultivars showed an increase in fresh weight and chlorophyll content under either BA or Kin, but they showed an increase in shoot height in the BA treatments only. IAA at 1.5 mg/L caused a

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Lima-Brito, Alone, Sheila Vitória Resende, Carolina Oliveira de Cerqueira Lima, Bruno Matos Alvim, Claudia Elena Carneiro, and José Raniere Ferreira de Santana. "In vitro morphogenesis of Syngonanthus mucugensis Giul: subsp. mucugensis." Ciência e Agrotecnologia 35, no. 3 (2011): 502–10. http://dx.doi.org/10.1590/s1413-70542011000300010.

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Syngonanthus mucugensis Giul. subsp. mucugensis is an herbaceous plant with significant economic value in the ornamental dry flower business. The restricted occurrence of the municipality Mucugê-BA, Brazil, exclusively associated with extractive exploitation, has considered this species as endangered. The objective of this work was to evaluate the organogenic potential of three different types of S. mucugensis subsp. mucugensis explants to promote the development of an alternative method to the propagation of the genetic resources of this important plant. The morphogenetic capacities of the le

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Azad, Md Abul Kalam, Hasnatul Arefin, and Md Amzad Hossain. "In vitro Morphogenesis of Arabian Date Palm (Phoenix dactylifera L.)." Plant Tissue Culture and Biotechnology 23, no. 2 (2014): 211–19. http://dx.doi.org/10.3329/ptcb.v23i2.17522.

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After inoculation of young leaves of date palm offshoot required about six months to complete the morphogenesis process. Fourteen weeks were required for embryogenic callus formation under continuous dark condition and nine weeks for shoot initiation (under 16/8 h light/dark). The highest number of explants (80%) produced callus in modified MS containing 5 mg/l 2,4-D + 2 mg/l 2ip. Sixty per cent of explants produced callus in the modified medium containing 5 mg/l 2,4-D + 5 mg/l NAA. while only 50 per cent of the explants formed callus in the same medium when supplemented with only 5 mg/l 2,4-D

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Tisseret*, Brent, and Steven Vaughn. "Influence of Physical Parameters on the Growth, Morphogenesis and Volatile Monoterpene Production in Mentha spicata L. Cultures In Vitro." HortScience 39, no. 4 (2004): 778F—779. http://dx.doi.org/10.21273/hortsci.39.4.778f.

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The influence of altering the physical environment on the growth (fresh weight), morphogenesis (leaf, root, and shoot numbers) and secondary metabolism (i.e., volatile monoterpene, and carvone) of Mentha spicata L. (spearmint) shoots cultured on MS medium was studied. The type of physical support (e.g., agar, liquid, platforms, or glass supports) using Magenta vessels altered growth and morphogenesis. Mint shoots grown on liquid produced 4-x fold more fresh weight than on agar. Carvone levels were unaffected physical supports. Increasing the frequency of media replacement significantly increas

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15

Rinne, P. L., and C. van der Schoot. "Symplasmic fields in the tunica of the shoot apical meristem coordinate morphogenetic events." Development 125, no. 8 (1998): 1477–85. http://dx.doi.org/10.1242/dev.125.8.1477.

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In plants, complex cellular interactions, which require the exchange of morphogenetic signals, underlie morphogenesis at the shoot apical meristem. Since all apical meristem cells are interconnected by plasmodesmata, we have investigated if symplasmic paths are available which may preferentially channel metabolites and potential morphogens in the apical meristem, and whether they could support both the formation of determinate appendages and the sustainment of an undifferentiated centre. Experiments in which the permeability of the symplasm was probed with fluorescent dye revealed that the tun

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16

Guseva, Alexandra. "Features of development of the clonal plant Scutellaria scordiifolia Fischer ex Schrank (Lamiaceae) in Siberia." BIO Web of Conferences 11 (2018): 00019. http://dx.doi.org/10.1051/bioconf/20181100019.

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Ontomorphogenesis of individuals of the clonal stoloniferous vegetative annual plant Scutellaria scordiifolia was studied in natural habitats. Ramets are represented by partial dicyclic shoots with an adventious root system. The ontogenesis of S. scordiifolia can be expressed by a sequence of phases of morphogenesis: [a partial shoot – a branched partial shoot] (v–g3) – a system of partial shoots (g2–g3) – a partial shoot (g2–ss). Individuals annually die off completely, regeneration takes place due to formation of tuberous stolons which are formed on the maternal stolon.

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17

Nguyen, Huong Thi Ngoc, and Mai Thi Bach Vo. "STUDY ON SHOOT MORPHOGENESIS IN-VITRO OF MORINDA CITRIFOLIA L." Science and Technology Development Journal 13, no. 1 (2010): 48–53. http://dx.doi.org/10.32508/stdj.v13i1.2095.

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Morinda citrifolia L. is a valuable medicinal plant, used to treat many diseases, such as sleeplessness, backache, high blood pressure... To study the shoot morphogenesis in Morinda citrifolia L. for propagation in the future, we examined the effects of BA, Zeatin and NAA on adventitious shoot formation of hypocotyl. The results showed that the regeneration of adventitious shoot comprised three steps of morphogenesis. In this process, Zeatin 1mg/l stimulated the formation of shoot primordia in dark (after a week), earlier than BA at the same concentration. Shoot generation was slow (after five

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18

Tisserat, Brent, and Robert Silman. "338 CO2-Ultrasonic Fogging System Enhances Tissue Culture Shoot Survival and Growth." HortScience 35, no. 3 (2000): 450C—450. http://dx.doi.org/10.21273/hortsci.35.3.450c.

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An inexpensive ultrasonic fogging system is presented that aids in the establishment of tissue culture shoots in soil under greenhouse conditions. In addition, ultrasonic fogging may be coupled to CO2 nutrient enhancement via bubbling CO2 into the water reservoirs prior to fogging to improve growth and morphogenesis responses of shoots. A list and cost of items for the system and its assembly is given. Transplanted tissue culture shoots of basil (Ocimum basilicum L.), hosta (Hosta sp.), mint (Mentha sp.), and thyme (Thymus vulgaris L.) were tested with this fogging system with and without CO2

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19

Nguyen Thi, Trang Phuong, Quang Minh Bui, Hai Duc Le, and Linh Quoc Nguyen. "STUDY ON THE IN VITRO MORPHOGENETIC RESPONSE FROM SHOOT AND CALLUS CULTURES OF Blepharis maderaspatensis (L.) Heyne ex. Roth." Scientific Journal of Tra Vinh University 1, no. 40 (2020): 28–38. http://dx.doi.org/10.35382/18594816.1.40.2020.614.

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Blepharis maderaspatensis (L.) Heyne ex. Roth is a short-term plant which contains many important secondarycompounds with high medicinal value. Currently, most of the researches focus on chemical composition and pharmacological activity, but the source of raw materials is very limited. In this study, the first step is transferring the samples from nature into in vitro culture conditions to understand the effects of the factors related to shooting and callus morphogenesis was performed, the first node from shoots apical meristem was isolated and sterilized with 1.5% NaOCl for 20 minutes to achi

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Mohnen, D., S. Eberhard, V. Marfa, et al. "The control of root, vegetative shoot and flower morphogenesis in tobacco thin cell-layer explants (TCLs)." Development 108, no. 1 (1990): 191–201. http://dx.doi.org/10.1242/dev.108.1.191.

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Thin cell-layer explants (TCLs) have been proposed as favorable tissues for the study of root, vegetative shoot and flower formation. We tested the effects of pH, light quality, light quantity, and IBA and kinetin concentrations on the morphogenesis of TCLs cultured individually on a liquid medium. Alterations of the amounts of exogenously supplied IBA and kinetin were sufficient to induce the formation of roots, vegetative shoots and flowers on TCLs cultured on otherwise identical media. The type and number of organs formed were sensitive to the intensity of light (55, 75, 100 and 120 muEinst

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Robinson, Sarah, Agata Burian, Etienne Couturier, et al. "Mechanical control of morphogenesis at the shoot apex." Journal of Experimental Botany 64, no. 15 (2013): 4729–44. http://dx.doi.org/10.1093/jxb/ert199.

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WALTON, E. "Shoot Axillary Bud Morphogenesis in Kiwifruit (Actinidia deliciosa)." Annals of Botany 80, no. 1 (1997): 13–21. http://dx.doi.org/10.1006/anbo.1996.0381.

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23

Ogden, Michael S., and Christian R. Lacroix. "Comparative development of simple and compound leaves in the genus Cecropia." Botany 95, no. 2 (2017): 185–93. http://dx.doi.org/10.1139/cjb-2016-0148.

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Plants develop leaves that range from simple to compound in shape. The evolutionary divergence of simple and compound leaves has spurred research into identifying the cellular and molecular processes involved in determining leaf shape. The roles of various genes and signalling pathways have been characterized in specifying leaf shape; however, few studies have investigated leaf primordium structure and shoot apex organization throughout the development of both simple and compound leaves. Using Cecropia obtusa Trécul and Cecropia sciadophylla Martius, two putatively closely related species bear

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24

Marfenin, Nikolay N. "Morphogenetic Polyvariance in the Colonial Hydroid Dynamena pumila (L.)." Diversity 13, no. 12 (2021): 683. http://dx.doi.org/10.3390/d13120683.

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The formation of aberrant modules (internodes) of the shoot was found sporadically in the colonial hydroid Dynamena pumila from the family Sertulariidae, which is distinguished by the symmetrical two-row position of the hydrotheca on the shoot stem. Despite rare significant deviations from the norm in the structure of some modules, the following modules in the shoots are formed normally. All variants of deviation from the norm (called morphovariations) are classified and, in general, are represented by four groups according to the possible reasons for their occurrence. The morphotypes are the

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25

Ramadani, Sindi, Nilla Kristina, Auzar Syarif, and Elara Resigia. "PENGARUH WARNA CAHAYA TERHADAP MORFOGENESIS EKSPLAN KALUS BAWANG PUTIH (Allium sativum L.) SECARA IN-VITRO." Jurnal Agroteknologi 14, no. 2 (2024): 63. http://dx.doi.org/10.24014/ja.v14i2.25211.

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The quality of the Garlic seed bulbs needs to be improved by seed propagation through tissue culture techniques to get uniform and big cloves. Utilizing the suitable color spectrum of light is one way to stimulate plant morphogenesis. This study aimed to identify the influence of light color and obtain the best color in the morphogenesis of garlic callus explants. This research was carried out from June to September 2022 at the Tissue Culture Laboratory, Faculty of Agriculture, Universitas Andalas. This study used a completely randomized design with three treatment levels: red, blue, and white

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Maduabuchi, Duru, Mbata Ikechukwu, Osikwe Keziah, Ukaoma Adamma, and Ajuruchi Chioma. "In vitro propagation of Manihot esculenta Crantz in alternative substrate: Ammonium nitrate, potassium bi phosphate, Zea mays extracts and soil." Journal of Agricultural and Crop Research 8, no. 10 (2020): 237–44. http://dx.doi.org/10.33495/jacr_v8i10.20.164.

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The study investigated an in vitro propagation of Manihot esculenta Crantz in a substituted substrate regime. The aim was to proffer and affordable alternative to the expensive high tech media formulations usually employed in tissue culture protocol. The experiment was conducted on laboratory bench, using standard tissue culture and micropropagation methods under aseptic conditions. The morphogenesis effect of the substrate was determined based on the integer number of explants’ callus and adventitious shoot regeneration. Results showed that MS + Agar, supported embryogenic callus formation wi

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Yuceer, C., S. B. Land, M. E. Kubiske, and R. L. Harkess. "Shoot morphogenesis associated with flowering in Populus deltoides (Salicaceae)." American Journal of Botany 90, no. 2 (2003): 196–206. http://dx.doi.org/10.3732/ajb.90.2.196.

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Patil, Gunvant, Ramesh Patel, Ranjeet Jaat, A. Pattanayak, Pradeep Jain, and R. Srinivasan. "Glutamine improves shoot morphogenesis in chickpea (Cicer arietinum L.)." Acta Physiologiae Plantarum 31, no. 5 (2009): 1077–84. http://dx.doi.org/10.1007/s11738-009-0319-y.

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Compton, Michael E., and Richard E. Veilleux. "Shoot, root and flower morphogenesis on tomato inflorescence explants." Plant Cell, Tissue and Organ Culture 24, no. 3 (1991): 223–31. http://dx.doi.org/10.1007/bf00033481.

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Héloir, Marie-Claire, and Jean-Claude Fournioux. "Morphogenèse de la vigne in vitro sous atmosphère enrichie en gaz carbonique : importance de l'antériorité morphogénétique des microboutures et du nombre de subcultures." Canadian Journal of Botany 79, no. 10 (2001): 1129–33. http://dx.doi.org/10.1139/b01-063.

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This study reveals that morphogenesis of grapevine plants (Vitis vinifera L.) produced in vitro under carbon dioxide enriched atmosphereis largely determined by the morphogenetic pattern of vitroplants on which microcuttings were harvested. The presence of tendrils on shoots or shoot parts from which microcuttings were made was essential to obtain a high percentage of adult vitroplants with ternary sequence of tendrils. Therefore, under in vitro culture conditions, the ability of the axillary meristem to produce tendrils is closely correlated with the ability of the apical meristem from which

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Hébant-Mauri, R. "The branching of Trichomanes proliferum (Hymenophyllaceae)." Canadian Journal of Botany 68, no. 5 (1990): 1091–97. http://dx.doi.org/10.1139/b90-137.

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The general morphology, anatomy, and meristem histology of Trichomanes proliferum were studied in order to explain the morphogenesis of this fern. As opposed to Bierhorst's conclusions, T. proliferum was found to be a typical fern with normal tetrahedral shoot apical cells and lenticular leaf apical cells. The leaf is a lateral production of the shoot apical meristem. This species is similar morphologically to other species in the genus Trichomanes: the shoot apical meristems on the creeping stolons produce "lateral systems," composed of a leaf and a bud, which are extraaxillary, as in other T

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Zhurakivska, S. "Peculiarities of the morphogenesis of monocarpic shoot of Betonica officinalis L. (Lamiaceae)." Modern Phytomorphology 4 (April 1, 2013): 269–72. https://doi.org/10.5281/zenodo.161396.

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Matoušek, Jaroslav, Kevin P. Wüsthoff, and Gerhard Steger. "“Pathomorphogenic” Changes Caused by Citrus Bark Cracking Viroid and Transcription Factor TFIIIA-7ZF Variants Support Viroid Propagation in Tobacco." International Journal of Molecular Sciences 24, no. 9 (2023): 7790. http://dx.doi.org/10.3390/ijms24097790.

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Viroids are small, non-coding, pathogenic RNAs with the ability to disturb plant developmental processes. This dysregulation redirects the morphogenesis of plant organs, significantly impairing their functionality. Citrus bark cracking viroid (CBCVd) causes detrimental developmental distortions in infected hops (Humulus lupulus) and causes significant economic losses. CBCVd can infect cells and tissues of the model plant tobacco (Nicotiana tabacum), provided it is delivered via transgenesis. The levels of CBCVd in tobacco were enhanced in plant hybrids expressing CBCVd cDNAs and either the tob

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Pandey, Ved Prakash, Jose Kudakasseril, Elizabeth Cherian, and George Patani. "COMPARISON OF TWO METHODS FOR IN VITRO PROPAGATION OF RAUWOLFIA SERPENTINA FROM NODAL EXPLANTS." INDIAN DRUGS 44, no. 07 (2007): 514–19. http://dx.doi.org/10.53879/id.44.07.p0514.

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Two different methods of in vitro multiplication of Rauwolfia serpentina from nodal explants were compared viz. multiplication via callus morphogenesis and that via shoot proliferation from axillary buds. The second method was found to be far better. The optimum shoot proliferation occurred on Murashige and Skoog (MS) medium supplemented with 1 mg/L naphthalene acetic acid (NAA) and 2 mg/L of benzyl aminopurine (BAP). The best rooting of shoots occurred on MS medium containing 4% sucrose and 1 mg/L of NAA. Solid and liquid MS media were found to be similar in supporting shoot proliferation. Th

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Pandey, Ved Prakash, Jose Kudakasseril, Elizabeth Cherian, and George Patani. "Comparison of two methods for in vitro propagation of Rauwolfia serpentina from nodal explants." Indian Drugs 44, no. 7 (2007): 514–19. https://doi.org/10.5281/zenodo.3597219.

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Two different methods of in vitro multiplication of Rauwolfia serpentina from nodal explants were compared viz. multiplication via callus morphogenesis and that via shoot proliferation from axillary buds. The second method was found to be far better. The optimum shoot proliferation occurred on Murashige and Skoog (MS) medium supplemented with 1 mg/L naphthalene acetic acid (NAA) and 2 mg/L of benzyl aminopurine (BAP). The best rooting of shoots occurred on MS medium containing 4% sucrose and 1 mg/L of NAA. Solid and liquid MS media were found to be similar in supporting shoot proliferation. Th

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Abdelsalam, Asmaa, Kamal Chowdhury, and Ahmed El Bakry. "Efficient Adventitious Morphogenesis from In vitro Cultures of the Medicinal Plant Cymbopogon schoenanthus." Plant Tissue Culture and Biotechnology 28, no. 2 (2018): 147–60. http://dx.doi.org/10.3329/ptcb.v28i2.39674.

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Cymbopogon schoenanthus subsp. proximus is a medicinal grass, the source of sesquiterpene proximadiol and is well known in folk medicine as renal antispasmodic. The effect of growth regulators, different sugar types, methyl jasmonate and vitamins on de novo organogenesis from seed cultures was studied. Among different concentrations of NAA and BA, 4 mg/l NAA in combination with 0.5 mg/l BA produced 100% callus induction. Both 1.0 and 4.0 mg/l NAA in combination with 0.5 mg/l BA yielded the highest number of shoots. High concentration of sucrose 6% was efficient in root induction from organogen

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Pickett, F. B., M. M. Champagne, and D. R. Meeks-Wagner. "Temperature-sensitive mutations that arrest Arabidopsis shoot development." Development 122, no. 12 (1996): 3799–807. http://dx.doi.org/10.1242/dev.122.12.3799.

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To identify genes involved in meristem function we have designed a screen for temperature-sensitive mutations that cause a conditional arrest of early shoot development in Arabidopsis. We describe the characterization of three mutations, arrested development (add) 1, 2 and 3. At the restrictive temperature the add1 and add2 mutations disrupt apical meristem function as assayed by leaf initiation. Furthermore, add1 and add2 plants exhibit defects in leaf morphogenesis following upshift from permissive to restrictive temperature. This result suggests that proximity to a functional meristem is re

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DYKEMAN, BRIAN W., and BRUCE G. CUMMING. "IN VITRO PROPAGATION OF THE OSTRICH FERN (Matteuccia struthiopteris)." Canadian Journal of Plant Science 65, no. 4 (1985): 1025–32. http://dx.doi.org/10.4141/cjps85-131.

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Methods were developed for the successful in vitro propagation of ostrich fern (Matteuccia struthiopteris (L.) Todaro) clones utilizing shoot tips derived by forcing lateral buds on the rhizome. Maximum shoot proliferation was attained with 6-furfurylaminopurine (kinetin) at 1.0 mg/L with half-strength Murashige and Skoog (MS) inorganic salts and sucrose, agar, NaH2PO4, adenine sulphate, i-inositol and thiamine∙HCl at 30 000, 4000, 85, 40, 100, 0.4 mg/L, respectively. Excellent frond and root development was achieved with half-strength MS salts and sucrose, agar, i-inositol and thiamine∙HCl at

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Cheryomushkina, V., та A. Guseva. "Morphogenesis and structural organization of shoots of two life forms of Scutellaria supinа L." Modern Phytomorphology 4 (1 квітня 2013): 123–24. https://doi.org/10.5281/zenodo.161209.

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Cao, Xiaoling, and F. A. Hammerschlag. "112 The Influence of Plant Growth Regulators and Light Levels on Shoot Morphogenesis from Leaf Explants of Highbush Blueberry." HortScience 34, no. 3 (1999): 460F—461. http://dx.doi.org/10.21273/hortsci.34.3.460f.

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As part of a program to develop transgenic highbush blueberry (Vaccinium corymbosum L.) cultivars, studies were conducted to determine optimum conditions for high efficiency shoot regeneration from leaf explants of in vitro-propagated shoot cultures. The effect of either thidiazuron at 1 or 5 μM, or zeatin riboside at 20 μM, and two lit levels (18 ± 5 or 55 ± 5 μmol·m-2·s-1) on shoot organogenesis were investigated. With the exception of `Bluecrop', which did not regenerate shoots, maximum shoot regeneration of 13, 12.7, 12.6 and 4.6 shoots per explant for cultivars Duke, Georgiagem, Sierra, a

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Shavnin, Sergey Aleksandrovich, Andrey Andreevich Montile, Elena Aleksandrovna Tishkina, and Ol'ga Vladimirovna Epanchinceva. "Seasonal dynamics and growth rhythm of shoots of Salix ‘Bullata’ plants." Agrarian Bulletin of the 23, no. 12 (2024): 94–110. http://dx.doi.org/10.32417/1997-4868-2024-23-12-94-110.

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Abstract. The purpose is to identify infradian rhythms in the seasonal dynamics of apical growth of shoots of Salix ‘Bullata’ plants and to establish the features of morphogenesis associated with the existence of endogenous (genetic and hormonal) mechanisms for the occurrence of nonlinear changes, including fluctuations in the growth characteristics of shoots. Methods. A quantitative approach was used to study the dynamics of morphogenesis processes. There was carried out a comparative research of seasonal dynamics of velocities and accelerations of apical and radial growth of Salix ‘Bullata’

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Lintong, Rieddel Toar Jullio, Jeany Polii Mandang, and Edy Fredy Lengkong. "PERTUMBUHAN DAN MORFOGENESIS KRISAN (Chrisanthemum Morifolium) KULO DENGAN EKSPLAN PUCUK DAN NODUS PADA MEDIA MS YANG DIBERI Benzil Amino Purin (BAP)." AGRI-SOSIOEKONOMI 18, no. 1 (2022): 239. http://dx.doi.org/10.35791/agrsosek.18.1.2022.39078.

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This study aims to determine the effect of BAP on the growth and morphogenesis of Kulo Chrysanthemum with shoot and node explants by in vitro. This research was conducted from July to March 2021 at the Network Culture Laboratory of the Agriculture and Fisheries Service of Tomohon City. This study used a factorial completely randomized design (CRD), namely explant type factors consisting of shoot and node explants and BAP concentration factors were 0 mg/l, 0.5 mg/l, 1 mg/l, and 1.5 mg. /l so that there were 8 treatment combinations and each treatment was repeated 5 times resulting in 40 researc

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Lintong, Rieddel Toar Jullio, Jeany Polii Mandang, and Edy Fredy Lengkong. "PERTUMBUHAN DAN MORFOGENESIS KRISAN (Chrisanthemum Morifolium) KULO DENGAN EKSPLAN PUCUK DAN NODUS PADA MEDIA MS YANG DIBERI Benzil Amino Purin (BAP)." AGRI-SOSIOEKONOMI 18, no. 1 (2022): 239–46. http://dx.doi.org/10.35791/agrsosek.v18i1.55205.

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This study aims to determine the effect of BAP on the growth and morphogenesis of Kulo Chrysanthemum with shoot and node explants by in vitro. This research was conducted from July to March 2021 at the Network Culture Laboratory of the Agriculture and Fisheries Service of Tomohon City. This study used a factorial completely randomized design (CRD), namely explant type factors consisting of shoot and node explants and BAP concentration factors were 0 mg/l, 0.5 mg/l, 1 mg/l, and 1.5 mg. /l so that there were 8 treatment combinations and each treatment was repeated 5 times resulting in 40 researc

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Poethig, R. S. "Phase Change and the Regulation of Shoot Morphogenesis in Plants." Science 250, no. 4983 (1990): 923–30. http://dx.doi.org/10.1126/science.250.4983.923.

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Trivedi, Rohini. "In vitro regeneration of groundnut: Changes in antioxidative enzymes and histological studies." Journal of Agricultural Sciences, Belgrade 59, no. 1 (2014): 63–73. http://dx.doi.org/10.2298/jas1401063t.

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Reactive oxygen species (ROS) produced during stress responses are implicated in a number of cellular responses including morphogenesis. The present study was undertaken to study the changes in antioxidative enzymes during in vitro morphogenesis of groundnut from de-embryonated cotyledon explants cultured on Murashige and Skoog?s medium supplemented with 5.0 mg l-1 benzyl-adenine and 2.0 mg l-1 2,4-dichlorophenoxyacetic acid. During the early in vitro ontogenic stages of groundnut, the activity of peroxidase (POD) and polyphenol oxidase (PPO) increased from stage 0 (0 day) to stage II (14 days

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Uzelac, Branka, Dusica Janosevic, Dragana Stojicic, and Snezana Budimir. "Effect of cytokinins on shoot apical meristem in Nicotiana tabacum." Archives of Biological Sciences 64, no. 2 (2012): 511–16. http://dx.doi.org/10.2298/abs1202511u.

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Cytokinins are involved in plant cell proliferation leading to plant growth and morphogenesis. The size, activity and maintenance of the shoot apical meristem (SAM) are defined by a balanced rate of mitotic cell divisions and functional cell differentiation that are controlled by cytokinins. In order to investigate the effect of exogenous cytokinin on SAM, morpho-anatomical changes in the shoot apices of tobacco treated with benzyladenine (BA) were compared to those of untreated control plants.

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Nelson, Amy J. "Net alignment of cellulose in the periclinal walls of the shoot apex surface cells in Kalanchoe blossfeldiana. I. Transition from vegetative to reproductive morphogenesis." Canadian Journal of Botany 68, no. 12 (1990): 2668–77. http://dx.doi.org/10.1139/b90-337.

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The apical dome geometry and the pattern of net cellulose alignment in the periclinal walls of the surface cells of Kalanchoe blossfeldiana were examined during vegetative morphogenesis, during reproductive morphogenesis, and during the transition between the two development states. Photoperiodically induced and noninduced shoot apices were dissected, stained, and viewed under a dissecting microscope. The surface cell layer(s) was removed from the stem apex and examined under a polarizing microscope. The results indicated that correlations exist between the pattern of cellulose alignment on th

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Ślesak, Halina, Grzegorz Góralski, Helena Pawłowska, Barbara Skucińska, Marzena Popielarska-Konieczna, and Andrzej Joachimiak. "The effect of genotype on a barley scutella culture. Histological aspects." Open Life Sciences 8, no. 1 (2013): 30–37. http://dx.doi.org/10.2478/s11535-012-0113-5.

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AbstractCereals are known to be recalcitrant to the induction of morphogenesis in vitro and the majority of the methods used are callus-mediated and species/genotype-dependent. In the present investigation, a method of morphogenesis induction from immature scutella of selected barley cultivars was used, and particular attention was paid to histology in the initial stages of the regeneration process in order to confirm whether it occurs directly or indirectly (via callus formation). The length of the period from inoculating scutella on the medium to obtaining plantlets depended on the cultivar

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Golubenko, A. V., V. I. Didenko, A. V. Zinchenko, O. V. Voytsekhivska, and N. Yu Taran. "Morphogenetic ability in vitro of the genus Centaurea Kleop species of Ukrainian flora." Visnik ukrains'kogo tovaristva genetikiv i selekcioneriv 15, no. 1 (2017): 20–24. http://dx.doi.org/10.7124/visnyk.utgis.15.1.707.

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Aim. The purpose of the work was to introduce into the aseptic culture two endemic and one common species of the Centaurea genus (C. breviceps, C. steveniana and C. stoebe) and to identify their ability to different types of morphogenesis. Methods. The methods of plant tissue and cell culture in vitro are used in this work. Seeds and parts of the seedlings derived from seeds were primary cultivating material. The nutritional medium of Murashige Skoog was used as a base. The seeds were sprouted according to Nikolaeva’s methods and their own modifications. Results. Seedlings C. breviceps, C. ste

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Павлова, И. А., and М. И. Косюк. "Obtaining an aseptic culture of grape rootstocks." Magarach Vinogradstvo i Vinodelie, no. 1(119) (March 24, 2022): 6–11. http://dx.doi.org/10.35547/im.2022.40.55.001.

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В связи с возрастающей потребностью в получении материала высоких категорий качества для закладки маточников подвойных лоз винограда проводятся исследования по оптимизации всех этапов технологии клонального размножения подвоев in vitro . Цель настоящего исследования состояла в изучении особенностей морфогенеза подвоев винограда в системе in vitro на этапе получения асептической культуры. В результате исследований выявлена сортовая специфичность морфогенеза у подвоев Гравесак 11, Гравесак 12 и Феркаль как на этапе побегообразования, так и укоренения. Подвои отличались по регенерирующей способно

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