Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 27 for “"root formation"”.
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Adventitious root formation in flooded plants
Contains fulltext : mmubn000001_211344486.pdf (Publisher’s version ) (Open Access)
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The role of auxin and ethylene in adventitious root formation in Arabidopsis and tomato
Adventitious roots emerge from aerial plant tissues. Although important for clonal propagation of commercially important crop species, few studies have explored the mechanisms driving the development of these roots. This thesis research explored the hormonal controls and molecular mechanisms of …
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ΜΕΛΕΤΗ ΤΗΣ ΣΥΜΒΟΛΗΣ ΤΗΣ ΡΙΖΟΔΙΑΠΛΑΣΗΣ ΚΑΙ ΤΟΥ ΡΟΛΟΥ ΤΟΥ ΟΔΟΝΤΟΘΥΛΑΚΙΟΥ ΤΗΣ ΜΥΛΗΣ ΣΤΗΝ ΑΝΑΤΟΛΗ ΤΩΝ ΜΟΝΙΜΩΝ ΔΟΝΤΙΩΝ. ΠΕΙΡΑΜΑΤΙΚΗ-ΚΛΙΝΙΚΗ, ΑΚΤΙΝΟΓΡΑΦΙΚΗ ΚΑΙ ΙΣΤΟΛΟΓΙΚΗ ΕΡΕΥΝΑ ΣΕ ΣΚΥΛΟΥΣ
… POSSIBLE ROLE OF 10 THETISSUES PARTICIPATING IN ROOT FORMATION AND 2) THE CORONAL PART OF THE DENTALFOLLICLE IN COMBINATION WITH THE REDUCED ENAMEL EPITHELIUM ON TOOTH ERUPTIONAFTER THEIR SURGICAL REMOVAL. ARREST OF ROOT FORMATION WAS EVIDENT IN THE TEST TEETH OF GROUP A. HOWEVER, THESE TEETH DID …
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Improving and elucidating factors regulating black walnut (Juglans nigra L.) clonal propagation
… to predictably and reliably produce adventitious roots is often the greatest hurdle to successful propagation protocols. The objective of this research was to develop a reproducible and dependable clonal propagation protocol for black walnut, as well as to study the mechanisms controlling …
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Exploring the role of auxin in phenotypic plasticity in Arabidopsis thaliana root development
… the initiation and emergence of lateral roots. In this study we used several approaches to reduce auxin transport moving either from the shoot toward the root apex or from the root tip toward the base and examined the effect of these treatments on lateral root initiation and emergence. …
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Growth and root inhibition in Axenic hydrilla verticillata cultures
… produced by this method have inhibited shoot and root growth. In the present study, different variables in the process were analyzed for inhibitory effects. Addition of yeast extract, IAA, IBA, GAg, and kinetin failed to overcome stem or root growth inhibition. Neither NaOCl treatment nor …
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ΣΥΜΒΟΛΗ ΣΤΗ ΜΕΛΕΤΗ ΤΗΣ ΦΥΣΙΟΛΟΓΙΑΣ ΤΗΣ ΡΙΖΟΓΕΝΕΣΗΣ ΜΕΡΙΚΩΝ ΠΟΙΚΙΛΙΩΝ ΤΗΣ ΑΜΠΕΛΟΥ (V.VINIFERA L.) ΚΑΙ ΥΠΟΚΕΙΜΕΝΩΝ
… 41B AND ROZAKI COLLECTED ON FEBRUARY ANDMARCH ROOT BETTER THAN EARLY COLLECTED CUTTINGS. CUTTINGS OF 5 CVS (ROZAKI RODITIS SAVATIANO MO NAOUSIS AND C. SAUVIGNON) STORED 12 WEEKS AT AMBIENT TEMPERATURE ROOTED BETTER THAN CUTTINGS STORED AT 4 C OR 8 C. WHEN THE TOPS OFF THE CUTTINGS ARE UNCOVERED …
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Metabolomic approaches to understanding the auxin and ethylene response in Arabidopsis roots
… the metabolite responses of Arabidopsis roots to auxin or ethylene. Crosstalk between these hormones regulates many important physiological processes in plants, including the initiation of lateral root formation and the response to gravity. These occur in part through alterations in the …
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Expanding the genetic variability of flatpea using tissue culture, mutagenesis, and intercrossing techniques
… above 5.0 µM resulted primarily in root formation without shoots. Conditions for optimum whole plant regeneration were as follows: callus was initiated on a modified Schenk-Hildebrandt low-ammonium medium containing 5.0 µM IAA (indole acetic acid) and 2.5 µM zeatin for callus …
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Genomic approaches to understand sweetpotato root development in relation to abiotic factors
Storage root development is the most important physiological process in sweetpotato. Understanding the underlying genetics is the overall objective of this research. A secondary objective is examining the impact of abiotic stress on gene expression and storage root development. A comprehensive …
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The Significance of Inter- and Intraspecific DNA Content Variation in Agriculturally Important Species
… A technique for providing substantial, thick root formation from weedy Amaranthus species was also examined. No changes in total DNA content were observed by flow cytometric analysis, and the in vitro procedure did produce significantly larger roots, in higher quantity, containing 32 …
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Functional Analysis of Plant Glutamate Receptors
… in diverse processes such as C/N ratio sensing, root formation, pollen germination and plant-pathogen interaction. However, the exact properties of these channels, such as the spectrum of ligands, ion specificities, and subunit compositions are still not well understood. It is well established …
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Propagation, height control, and flowering of Hypoestes phyllostachya
… Stem cuttings did not require bottom heat or rooting hormone to induce adequate adventitious root formation. Three-node cuttings rooted more rapidly and had a more extensive root system than two-node cuttings. Cuttings stuck at a density of 200 per flat rooted less vigorously than those stuck …
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Seed and vegetative propagation methods for the rare Florida native species Chionanthus pygmaeus (pygmy fringetree)
… could be successfully propagated via hardwood or root cuttings if the appropriate combination of environmental conditions and hormones were applied. Hardwood and root cuttings were treated with either 1000 ppm IBA talc, 8000 ppm IBA talc, or inert talc. All cuttings were placed on a mist bench in …
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De novo morphogenesis on tomato thin cell layers and variation for genetic recombination among plantlets regenerated from tissue culture
De novo shoots, roots, and flower buds were regenerated on thin cell layer explants excised from pedicel tissue of tomato. Direct shoot organogenesis was greatest when media contained 10µM kinetin and 0.001µM indole-3-acetic acid (IAA); however, shoot regeneration was increased in subsequent …
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Allelopathy and autotoxicity studies and allelochemicals isolation and identification of alfalfa (Medicago sativa L.)
… as follows: leaf, seed, complete plant mixture, root, soil, flower, and stem. Alfalfa soil was the most inhibitory to alfalfa growth and these effects were greater for soil collected at the reproductive than the vegetative stage. Seven alfalfa cultivars extracts were screened for autotoxic …
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Gametophytic Selection for Thermotolerance in Phalaenopsis
… Protocorms were evaluated for leaf and root formation 125 days after initial plating. Transfer to warm or cold incubators occurred as protocorms developed leaves and roots. Seedlings were finally transferred to dried sphagnum and placed in growth chambers set to original pollination …
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Improvement of asexual propagation and Anisogramma anomala detection protocols to facilitate applied breeding of new Corylus avellana and C. americana x C. avellana germplasm
… a higher production potential; however, variable root induction rates and bud abscission among traditional Corylus cultivars currently limit this approach. A recent study suggests use of ethylene-blocking compounds in combination with low auxin levels may help overcome these challenges. Presently, …
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MtCEP1 peptides regulate lateral organ development in the model legume, Medicago truncatula
… for its regulation of nitrogen-mediated root development, most particularly, lateral root and nodule formation. The MtCEP1 peptide-encoding gene is upregulated by low nitrogen condition, an environmental cue which strongly regulates both lateral root and nodule formation. Therefore, …
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MtCEP1 peptides regulate lateral organ development in the model legume, Medicago truncatula
… for its regulation of nitrogen-mediated root development, most particularly, lateral root and nodule formation. The MtCEP1 peptide-encoding gene is upregulated by low nitrogen condition, an environmental cue which strongly regulates both lateral root and nodule formation. Therefore, …
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