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Littérature scientifique sur le sujet « Shoot morphogenesis »

Auteur : Grafiati

Publié le 7 juin 2025

Mis à jour le 2 août 2025

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Articles de revues sur le sujet "Shoot morphogenesis"

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 Pseudotsuga menziesii (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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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 Miscanthus sinensis 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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Thèses sur le sujet "Shoot morphogenesis"

Abad, Vivero Ursula Citlalli. "Morphogenesis at the shoot Apical Meristem." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEN088/document.

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Le phénomène de morphogenèse est le fruit de la division des cellules et de leur expansion, qui sont contrôlées de façon différentielle selon les types cellulaires et les tissus. Dans le cas des plantes, le méristème apical caulinaire (MAC) produit de façon continue les organes aériens à partir de primordia qui sont initiés suite à l’accumulation locale d’une hormone végétale, l’auxine. Pour étudier le processus de formation des organes aériens, nous utilisons l’inflorescence d’Arabidopsis thaliana, dont les fleurs sont mises en place selon un patron régulier à partir de cellules dérivées de c

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Ali, Md Sohrab. "Shoot morphogenesis of Aucuba japonica Thunb. (Cornaceae)." Kyoto University, 2005. http://hdl.handle.net/2433/145007.

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Kyoto University (京都大学) 0048 新制・課程博士 博士(農学) 甲第11605号 農博第1461号 新制||農||904(附属図書館) 学位論文||H17||N3998(農学部図書室) 23248 UT51-2005-D354 京都大学大学院農学研究科森林科学専攻 (主査)教授菊澤喜八郎, 教授野渕正, 教授藤田稔 学位規則第4条第1項該当

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Rambaud-Lavigne, Léa. "The genetics and mechanics of stem cells at the Arabidopsis shoot apex." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEN065/document.

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Les organes aériens des plantes sont générés par le méristème apical caulinaire (MAC), dont la mise en place et le maintien ont été largement étudiés. Alors qu’un vaste réseau de gènes assure une régulation robuste de la population de cellules souches, deux gènes se distinguent ; CLAVATA3 (CLV3) et WUSCHEL (WUS). CLV3 s’exprime dans les cellules souches et code pour un peptide signal dont la liaison à des récepteurs transmembranaires mène à la sous-régulation de WUS. Ce dernier code pour un facteur de transcription dans le centre organisateur sous-jacent. En retour, WUS active directement l’ex

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Louveaux, Marion. "Contribution of mechanical stress to cell division plane orientation at the shoot apical meristem of Arabidopsis thaliana." Thesis, Lyon, École normale supérieure, 2015. http://www.theses.fr/2015ENSL1019/document.

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La morphogenèse des plantes repose sur deux mécanismes cellulaires : la division et l'élongation. Par ailleurs, la croissance est source de contraintes mécaniques qui affectent les cellules et guident la morphogenèse. Si les contraintes mécaniques influencent l'orientation du plan de division dans les cellules animales, rien n'est prouvé pour les cellules végétales. À l'heure actuelle, la forme de la cellule est proposée comme le facteur principal gouvernant l'orientation du plan dans les divisions symétriques : les cellules se divisent selon un des plans les plus courts. Cette règle géométriq

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Partridge, Roland William. "Morphogenesis and morphology of intestinal villi." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28884.

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Paediatric intestinal failure following bowel resection causes significant morbidity and mortality. There is a pressing need for improved treatment modalities. Following loss of bowel, the remaining intestine undergoes a period of adaptation, characterised by an increase in height of the intestinal villi. Better understanding the factors that govern the formation and growth of villi may lead to therapeutic interventions that amplify the intrinsic adaptation response. This thesis aims to explore the processes by which intestinal villi form during embryological development, the contribution of i

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Lafon, Placette Clément. "Contrôle épigénétique de la plasticité de l’appareil végétatif du peuplier en réponse à des variations de la disponibilité en eau." Thesis, Orléans, 2012. http://www.theses.fr/2012ORLE2077/document.

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Au vu de l’impact croissant du changement climatique global et en particulier de la sécheresse sur les forêts, il est nécessaire de comprendre les mécanismes de réponse des arbres face à des variations de disponibilité en eau. Ces dernières années, des études ont montré un contrôle épigénétique et notamment par la méthylation de l’ADN de la plasticité phénotypique des plantes en réponse aux variations environnementales. Dans ce contexte, cette thèse visait à évaluer le rôle de la méthylation de l’ADN des cellules du méristème apical caulinaire dans la plasticité développementale de la tige feu

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Frey, Nadine [Verfasser], Siegfried [Gutachter] Roth, and Michael [Gutachter] Kroiher. "Genomic approaches to dorsoventral patterning and functional studies of epithelial morphogenesis in the short-germ beetle Tribolium castaneum / Nadine Frey ; Gutachter: Siegfried Roth, Michael Kroiher." Köln : Universitäts- und Stadtbibliothek Köln, 2017. http://d-nb.info/1149794194/34.

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Oliveira, Leandro Silva de. "Propagação de Eucalyptus cloeziana F. Muell." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-05052014-154718/.

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O Eucalyptus cloeziana se destaca pelas propriedades tecnológicas da sua madeira, principalmente em razão da sua durabilidade, densidade e resistência. Entretanto, essa espécie apresenta limitações quanto ao enraizamento adventício de estacas, dificultando a obtenção de mudas clonais e o avanço nos programa de melhoramento da espécie. Nesta perspectiva, o presente trabalho teve por objetivo avaliar a micropropagação de E. cloeziana a partir de materiais juvenis e adultos como uma técnica para a propagação da espécie. Para tanto, o trabalho foi dividido em quatro partes. No primeiro estudo, est

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Tobin, Cory James. "Morphogenesis of the Arabidopsis Shoot Apical Meristem." Thesis, 2016. https://thesis.library.caltech.edu/9722/7/ch1.pdf.

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Phyllotaxis patterns in plants, or the arrangement of leaves and flowers radially around the shoot, have fascinated both biologists and mathematicians for centuries. The current model of this process involves the lateral transport of the hormone auxin through the first layer of cells in the shoot apical meristem via the auxin efflux carrier protein PIN1. Locations around the meristem with high auxin concentration are sites of organ formation and differentiation. Many of the molecular players in this process are well known and characterized. Computer models composed of all these components are

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Elhiti, Mohamed Abdelsamad. "Molecular characterization of several Brassica shoot apical meristem genes and the effect of their altered expression during in vitro morphogenesis." 2010. http://hdl.handle.net/1993/4053.

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A common event during in vitro morphogenesis (either embryogenesis or shoot organogenesis) is the ability of somatic cells within the explants to de-differentiate and acquire “meristematic identity”. The developmental program of such meristematic cells can then be re-routed to form shoots or embryos depending on the imposed culture environment. The objective of this research is to investigate how the altered expression of Brassica genes regulating meristematic activity in vivo affects in vitro morphogenesis. It is predicted that ectopic expression of positive regulators of the shoot apical mer

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Chapitres de livres sur le sujet "Shoot morphogenesis"

Kelly, Alan J., and Douglas Ry Meeks-Wagner. "Molecular Studies of Shoot Meristem Activity during the Vegetative-to-Floral Transition." In Morphogenesis in Plants. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4899-1265-7_9.

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Joy, Richard W., and Trevor A. Thorpe. "Shoot Morphogenesis: Structure, Physiology, Biochemistry and Molecular Biology." In Morphogenesis in Plant Tissue Cultures. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-015-9253-6_7.

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Ahmad, Naseem, Mohammad Faisal, Sheikh Altaf Hussain, and Mohammad Anis. "Regulation of Morphogenesis and Improvement in Shoot Multiplication in Vitex Species Using Thidiazuron." In Thidiazuron: From Urea Derivative to Plant Growth Regulator. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8004-3_18.

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Hussain, Sheikh Altaf. "Effect of Silicon Ions on In Vitro Morphogenesis in Rauvolfia tetraphylla Using Shoot Tip Explants." In Propagation and Genetic Manipulation of Plants. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7736-9_11.

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Kashchenko, Serguey. "Pseudo-correlative Dimension of the Electroencephalogram and Its Relation to the Amount of Short-term Memory of the Human." In Lecture Notes in Morphogenesis. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19866-8_8.

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Sumida, Akihiro, and Yuri Takai. "Formation of a Structure of Exponentially Forking Branches with a Steady-state Amount of Current-year Shoots in a Hardwood Tree Crown." In Morphogenesis and Pattern Formation in Biological Systems. Springer Japan, 2003. http://dx.doi.org/10.1007/978-4-431-65958-7_21.

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Rajasreelatha, V., M. Thippeswamy, M. Siva Kumar, V. Naga Padmavathi, and T. Pullaiah. "A Review of Tissue Culture Studies on Withania somnifera (L.) Dunal - An Important Medicinal Plant." In Micropropagation of Medicinal Plants. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815196146124010005.

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Withania somnifera, commonly known as 'Indian ginseng', is a highly important and valuable medicinal plant in traditional family medicine, containing a variety of medicinal bioactive molecules for over 3,000 years. Various medicinal properties of plants are attributed to steroidal lactones (withanolides) present in plants. Its commercial cultivation is hampered by low seed viability and germination rates. Tissue culture techniques can play an important role in the preservation, clonal propagation, and qualitative improvement of this medicinal plant. In vitro shoot differentiation and microprop

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Taiz, Lincoln, Ian Max Møller, Angus Murphy, and Eduardo Zeiger. "The Control of Flowering and Floral Development." In Plant Physiology and Development. Oxford University Press, 2023. http://dx.doi.org/10.1093/hesc/9780197614204.003.0024.

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This chapter addresses the fundamental questions of the phenomenon on the strong correlation between flowering and seasons, such as how plants keep track of the seasons of the year and the time of day. It looks at which environmental signals influence flowering and how those signals are perceived. It also describes how environmental signals are transduced to bring about the developmental changes associated with flowering. The chapter talks about the transitions to flowering which involve major changes in the pattern of morphogenesis and cell differentiation at the shoot apical meristem, which

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Taiz, Lincoln, Ian Max Møller, Angus Murphy, and Eduardo Zeiger. "Vegetative Growth and Organogenesis: Primary Growth of the Plant Axis." In Plant Physiology and Development. Oxford University Press, 2023. http://dx.doi.org/10.1093/hesc/9780197614204.003.0022.

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This chapter discusses the developmental processes by which plants transition from the seedling state, expanding on their primary axis and production of determinate lateral organs. It considers the basic features of cell division and initiation of processes that lead to differentiation in the root and shoot apical meristems. It also examines blade formation in simple leaves, which involves the marginal expansion of leaf tissues, differentiation into adaxial and abaxial domains, and morphogenesis along the proximal–distal axis. The chapter highlights how compound leaves are produced by variatio

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Taiz, Lincoln, Ian Max Møller, Angus Murphy, and Wendy A. Peer. "Flowering and Double Fertilization." In Fundamentals of Plant Physiology. Oxford University Press, 2024. http://dx.doi.org/10.1093/hesc/9780197614167.003.0016.

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This chapter assesses flowering and double fertilization. Flowering at the correct time of the year is crucial for the reproductive fitness of the plant. The transition to flowering involves major changes in the pattern of morphogenesis and cell differentiation at the shoot apical meristem (SAM). Ultimately, this process leads to the production of the floral organs: sepals, petals, stamens, and carpels. The process by which the SAM becomes committed to forming flowers is termed floral evocation. Photoperiodism and vernalization are two of the most important mechanisms underlying seasonal respo

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Actes de conférences sur le sujet "Shoot morphogenesis"

Hasanah, Khairul Maghfirah, Tuğba Öztekin, and Lale Yıldız Aktaş. "Enhancing Plant Growth: The Importance of LED Lighting in Greenhouse and Hydroponic Systems." In 8th International Students Science Congress. ULUSLARARASI ÖĞRENCİ DERNEKLERİ FEDERASYONU (UDEF), 2024. https://doi.org/10.52460/issc.2024.006.

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Integrating light-emitting diode (LED) lighting systems in greenhouse and plant hydroponic culture represents a significant stride towards sustainable agriculture. This study explores the pivotal role of LED technology, particularly for purple, blue, and red light in nurturing to enhance plant growth and development. Plant photoreceptors absorb different wavelengths of light and activate a signaling cascade from upstream to downstream that will activate several complex physiological processes and morphogenesis. Red light (R, 620–700 nm) is recognized by phytochrome which controls photomorphoge

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Tevfik, A. Sh, and N. A. Yegorova. "Peculiarities of Thymus tauricus Klokov et Des.-Shost. clonal micropropagation." In CURRENT STATE, PROBLEMS AND PROSPECTS OF THE DEVELOPMENT OF AGRARIAN SCIENCE. Federal State Budget Scientific Institution “Research Institute of Agriculture of Crimea”, 2020. http://dx.doi.org/10.33952/2542-0720-2020-5-9-10-97.

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The aim of the investigation was to study the influence of cultivation conditions and the culture medium composition on the Thymus tauricus Klokov et Des.-Shost explants morphogenesis at the 1st-2nd stages of clonal micropropagation. The optimal composition of culture medium at the introduction stage is the MS medium with 1.0 mg/l of kinetin and 1.0 mg/l GА3. To obtain a high multiplication index (29.4) at the second stage of micropropagation, it is necessary to cultivate explants in flasks with MS medium supplemented with 1.0 mg/l kinetin.

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Menon, Prahlad G., William Kowalski, and Kerem Pekkan. "Computational Fluid Dynamics Analysis of Early Embryonic Aortic Arch-Ligation." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14470.

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Congenital heart disease occurs in 8 out of every 1000 live births in the US and more than half of this population is associated with great artery lesions. Selective remodeling of the paired, bilaterally symmetric embryonic aortic arches (AA) is a crucial stage in vascular morphogenesis and has known association with biomechanical forces [1]. Fetal cardiac interventions are currently explored clinically as an alternative repair technique for congenital anomalies, in-utero [2]. Several computational fluid dynamics (CFD) studies have been performed focusing on subject specific embryonic cardiova

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LELIŪNIENĖ, Jolanta, Ligita BALEŽENTIENĖ, and Evaldas KLIMAS. "FESTULOLIUM METABOLITES ACCUMULATION RESPONSE TO PHOTOPERIOD OF FLOWERING TERMOINDUCTION." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.003.

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Most of plant development, physiological and metabolic processes are regulated by not only soluble sugars such as glucose and sucrose, but also by other signal molecules, such as phytohormones. The investigation of flowering induction, considering the influence of vernalisation duration and photoperiod on morphogenesis stages and accumulation metabolites in the new Festulolium cultivars ’Vėtra’ and ’Punia’ was carried out at the phytotron complex of the Plant Physiology Laboratory, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry in 2011-2012. The data reveale

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Rapports d'organisations sur le sujet "Shoot morphogenesis"

Eshed-Williams, Leor, and Daniel Zilberman. Genetic and cellular networks regulating cell fate at the shoot apical meristem. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7699862.bard.

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The shoot apical meristem establishes plant architecture by continuously producing new lateral organs such as leaves, axillary meristems and flowers throughout the plant life cycle. This unique capacity is achieved by a group of self-renewing pluripotent stem cells that give rise to founder cells, which can differentiate into multiple cell and tissue types in response to environmental and developmental cues. Cell fate specification at the shoot apical meristem is programmed primarily by transcription factors acting in a complex gene regulatory network. In this project we proposed to provide si

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