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 30 for “"Apical meristem"”.
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Agronomic management of soybean with foliar manganese and apical meristem alterations
… in 2015 evaluated alternative practices to break apical dominance in soybean in order to facilitate plant branching or create multiple new main stems to potentially increase yield. Practices to eliminate the plant apical meristem included applying the herbicide Cobra …
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Investigating the Roles of Three Aintegumenta-Like Genes In Maintenance of Arabidopsis Shoot Meristem Activity
<p>The shoot apical meristem, a small dome-shaped structure at the shoot apex of higher plants, is established during development of the embryo. After germination, the indeterminate activity of the shoot apical meristem is responsible for the initiation of all aboveground parts of the plant. The …
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Isolation and characterization of the SIAMESE family: a novel class of cell cycle regulators in plants
… SIM proteins are expressed throughout the shoot apical meristem, in leaf primordia, and in the elongation zone of the root, and are localized to the nucleus. Overexpression of SIM, as well as the SMRs, in Arabidopsis results in slow-growing, severely dwarfed plants with greatly enlarged epidermal …
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Spatiotemporal Interaction Networks in Plant Development
… de novo vascular differentiation in the shoot apical meristem, regulation of cell polarity, and quantitative analysis of spatial gene expression. First, we deployed genetic, in vivo imaging and computational studies to derive an auxin-initiated feedback network of transcription factors …
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The complex foraging strategy of the specialised gallfly Urophora cardui (Diptera: Tephritidae) for host plants (Cirsium arvense, Asteraceae)
… tissue at the axillary bud. The width of the apical meristem of the axillary buds was proven to influence female choice of the oviposition site. Axillary buds with an apical meristem-diameter above 0.62mm had a higher probability to became chosen by the U. cardui females. The clutch size was …
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MOLECULAR NETWORK CONTROLLING THE OVULE DEVELOPMENT IN ARABIDOPSIS THALIANA
… Double mutant cuc1cuc2 shows defect in shoot apical meristem formation, two cotyledons fused along their margin to form a cup shaped structure (Aida et al., 1997). Normally it is difficult to get the double mutant plants from the fused cotyledon. Adventitious shoots regenerated from mutant …
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Confocal and electron microscopy investigations of the plant endoplasmic reticulum–nuclear envelope interface and meristematic cell divisions
… novel mechanisms of division within the root meristem, an area of significant agricultural relevance yet ambiguity due to its size and location. Through Serial Block-Face Scanning Electron Microscopy, root apical meristem cells are shown to experience closed mitosis with the NE remaining …
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Cell Fate Specification and the Regulation of RNA-dependent DNA Methylation in the Arabidopsis Root Meristem
<p>The Arabidopsis root apical meristem (RAM) is a complex tissue capable of generating all the cell types that ultimately make up the root. The work presented in this thesis takes advantage of the versatility of high-throughput sequencing to address two independent questions about the root …
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Use of Plant Growth Regulators to Increase Branching of Clematis Spp.
… a thin, unbranched plant with one cyme. Apical dominance is released by cutting back the vine during production. Cutting back, or pinching, of a plant is labor intensive and compromises bloom for vegetative growth at time of sales. The purpose of this project was to eliminate manual …
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Mechanisms of Microbial DNA Sensing by the AIM2 Inflammasome and Structural Study of Polynucleotydyl Transferase1 (pnt1) from Arabidopsis Thaliana
… AGO10 was known as a key regulator of shoot apical meristem (SAM) maintenance in Arabidopsis. A recent study reported that AGO10 can regulate the developmental processes in SAM by repressing two miRNAs, miR166/165, and bind to these two miRNAs. Sequence analysis of PNT1 showed that it belongs …
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Promoter analysis in transgenic sugar beet
… in vascular tissue while expression in the apical meristem was also found with the CaMV 35S promoter construct. The hairy root/reporter gene system used was shown to be suitable for testing promoters in transgenic sugar beet.
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Juvenility in three composite genera with ornamental potential: Rudbeckia, Gaillardia and Solidago
… during evocation indicated an increase in apical meristem widths (120 pm to 224 pm) and heights (21 ~m to 48 pm), an increase of 2 to 5 tunica cell layers, greater corpus organization, and a lower point of primordia attachment with respect to increased doming of the apex all occurring with …
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Natural genetic variation and gene expression patterns underlying lateral shoot (tiller) development in barley (Hordeum vulgare L)
… above-ground tissues develop from the shoot apical meristem (SAM), including axillary meristems (AXM) from which lateral branches develop. In barley, lateral branches called tillers contribute directly to grain yield and define shoot architecture. Two studies were completed to gain a better …
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Description and control of flowering in California Poppy (Eschscholzia californica)
… objectives of this study were to document the apical meristem changes of California poppy during the transition to flowering, to determine the minimum number of inductive long-day (LD) cycles required for induction and initiation of flowering, and to examine the effects of exogenously applied …
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The role of CLE peptides during nodulation
… while indeterminate nodules have a persistent apical meristem. Nodule organogenesis is governed by the bacterially produced Nod factors and downstream of it, cytokinin signaling. As nodulation is an energy-consuming process, legumes developed long distance mechanisms to control nodule number, …
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Molecular characterization of signaling mechanisms in flowering transition in Arabidopsis and identification of novel flowering QTL in soybean
… that controls the activity of the shoot apical meristem (SAM), was selected. Through yeast two-hybrid, we identified nine TFL1 interactors and named them TFL1-IN-LOVE (TIL). Of the nine, TIL3, showed specific binding to TFL1 at a unique TFL1 residue. For this reason TIL3, which encodes an …
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Isolation and characterization of latex-specific promoters from Papaver somniferum L.
… opium poppy, and limited expression in the shoot apical meristem and root hypocotyl axis in Arabidopsis. These results indicate that the minimum active DIOX promoter is greater than 0.14 kb. Over 1 kb of the LSPs were sequenced and analyzed for regulatory elements using the Plant cis-acting …
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FUNCTIONAL ANALYSIS OF TRANSCRIPTION FACTORS INVOLVED IN REPRODUCTIVE MERISTEM IDENTITY IN ARABIDOPSIS THALIANA
… are responsible for the switch from the shoot apical meristem (SAM) to the inflorescence meristem (IM) and are involved in the activation of the floral meristem identity (FMI) genes: LFY, LATE MERISTEM IDENTITY1 (LMI1), APETALA1 (AP1), CAULIFLOWER (CAL), SHORT VEGETATIVE PHASE (SVP) and …
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NAC transcription factors in sugarcane and their functional role in drought tolerance
… multiple stress response pathways. NAC (No apical meristem [NAM], Arabidopsis transcription activation factor [ATAF], Cup-shaped cotyledon [CUC]) transcription factors (TFs) are promising candidates, as they influence plant development, stress signalling, and cell division. In cowpea (Vigna …
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