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 28 for “"monocots"”.
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A Morphological and Phylogenetic Comparative approach to investigating Branching Architecture Evolution in Monocots A Dissertation
… of inflorescence branching architecture in monocots focusing on umbels, a type of branching architecture where all flowers appear to arise from a single point. The first chapter identifies, by comparative developmental morphology and anatomy, that there are at least three convergent …
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Response of selected warm-season turfgrasses and ornamental monocots to short-term, high concentration, ozone fumigation
Ozone (O3), one of the most powerful oxidants known, is phytotoxic at high levels in the troposphere, or ground-level. Effects of acute ozone exposure for two consecutive days was examined on Bermudagrass (Cynodon dactylon), centipedegrass (Eremochloa ophiuroides), zoysiagrass (Zoysia japonica), …
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A morphological-anatomical classification of growth forms in monocotyledons
… thesis examines the morphology and anatomy of monocots from the standpoint of both taxic and growth form diversity and attempts to address the problems encountered in classifying and naming the structures which comprise the axial system of monocots. The morphology and anatomy of the growth …
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Cytogenetic Studies in the Genus Cymbidium
… they deviate so distinctly from the norm of the Monocots. They are the possessors of a number of unique structures that are found in no other family of flowering plants.</p>
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Stretched to the limit : leaf tensile properties and lignin content of resurrection plants
… plants, leaf tensile strength was higher in the monocots than the dicots at full hydration. Three different mechanisms of cell protection occur in resurrection plants on drying: cell-wall folding, packing vacuoles with non-aqueous solute or a combination of the two. Tensile strength in C. wilmsii …
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Floral induction in Brachypodium distachyon
… on the reproductive development of temperate monocots.
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Effect of desiccation and storage on the seeds of two related species in the Amaryllidaceae from the western Cape Province
… and dehydration behaviour of two related monocots Boophane flava Barker ex Snijman and Amaryllis belladonna L. (Amaryllidaceae) were studied to determine whether these seeds are indeed recalcitrant, and if so their degree of tolerance, and to gain an understanding of the reproductive …
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Diverse functions of the two segmentally duplicated 9-lipoxygenases ZmLOX4 and ZmLOX5 of maize
… 9-LOX derived oxylipins remain obscure for both monocots and dicots. The objective of this study was to elucidate the biochemical, molecular and physiological roles of a segmentaly duplicated pair of 9-LOXs, ZmLOX4 and ZmLOX5, in host defenses to diverse stresses. Despite of their extreme …
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Isolation and characterization of the SIAMESE family: a novel class of cell cycle regulators in plants
… members. Homologs exist in other dicots and in monocots, although no obvious animal homologs have been identified. SIM and the SIAMESE-RELATED (SMR) proteins contain two putative cyclin-binding motifs: one found in the Kip-related (KRP) class of plant CDK inhibitors, and a "Cy" motif found in …
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Adaptive metabolic gene clusters as toolkits for chemical innovation: Investigation of the origin of the avenacin gene cluster for synthesis of defense compounds in oats
… transferases and Group L glycosyltransferases in monocots. Phylogenetics analyses show that these gene families evolve via duplication-neofunctionalisation, facilitated by gene GC content and exon-intron structures changes under purifying selection on amino acid sequences. Syntenic study of the …
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Characterisation of candidate effector proteins from barley pathogen <i>Rhynchosporium commune</i>
… resource for engineering non-host resistance in monocots. The overexpression of Rc2 allele from R. commune strain L2A in the barley landrace SLB-10-009 induced necrotic lesions, indicating a potential recognition of the candidate effector Rc2. Virulence tests were performed to see whether single …
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Analysis of phytochrome signaling pathways in Zea mays
… family, phyA-phyE. In contrast, genomes of monocots sequenced so far contain only three members, phyA-phyC, although polyploids may have multiple homeologs of each. Studies in Arabidopsis have shown that phytochromes primarily transduce light signals via interaction with PIFs (phytochrome …
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Computational Analysis of Gene Expression Regulation from Cross Species Comparison to Single Cell Resolution
… families and conserved regulatory motifs between monocots and dicots. We also presented a BLS-based clustering method which takes into account evolutionary relationships among species to identify conserved co-expression genes. Last, we analyzed single-cell RNA-seq data from monocytes to attempt to …
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Optimizing Weed Management via Microwave Irradiation
… weed management. Ten weed species representing monocots and dicots were selected for this study: southern crabgrass, dallisgrass, yellow nutsedge, fragrant flatsedge, false green kyllinga, common ragweed, field bindweed, henbit, white clover, and pitted morningglory. There was a lag or warm up …
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Effects of coastal dynamics on colonization of Louisiana wetland plants by fungal endophytes
… (DSE) in the roots of 18 plant species. Monocots were mostly colonized by DSE, and dicots, including woody species were mostly colonized by AMF. In the third chapter, I used a mesocosm approach, to explore the effects of soil conditions on foliar endophyte diversity and composition in two …
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An investigation into the chloroplast transformation of wheat, and the use of a cyanobacterial CCM gene for improving photosynthesis in a C3 plant
… homoplasmic plastid transformation event in the monocots. This study identifies a number of bottlenecks responsible for the prevention of chloroplast transformation in wheat. One such bottleneck is the lack of a suitable explant for plastid transformation, as traditional nuclear transformation …
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Differential Stimulation of Monocytes to Secrete Secretory Leukocyte Protease Inhibitor by Lipopolysaccharide of Periodontal Pathogens
… periodontal pathogens are better inducer of monocots to secrete SLPI, and (2) Secreted SLPI in turn inhibits the production of inflammatory cytokines produced by monocytes in response to LPS. The limited stimulation of monotypic cells to secrete super oxide ions as shown previously along with …
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Demography, Reproduction, Diet and Crop Depredation in Three Species of Rodents in Natural and Irrigated Fields in Nigeria
… In both sites during the rainy periods, monocots and insects made up the second and third most important food groups by mass of the diet intake of the species.</p> <p>The damage and yield loss caused by rodents in cereal crops in irrigated savannah fields was investigated. The high level …
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Improving barley for biofuel production – efficient transformation for lignin manipulation
… few reports describing down-regulation of CAD in monocots, and none in barley. Here, in this thesis, lignin was altered by down-regulating CAD genes using an RNAi construct with part of the HvCAD2 gene, the gene which has the highest expression level of all CAD genes. Transgenic barley plants …
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