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 29 for “"Fruit ripening"”.
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Developing a Plant-Based Vaccine Against the Respiratory Syncytial Virus (Rsv)
The progression towards fruit-ripening is a highly coordinated process. Fruit softening is the result of polygalacturonase (PG) enzyme activation. The fruit-ripening promoter and the terminator regions from PG were sequenced. BLASTn analysis reveals sequence homology to genes involved in ethylene …
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Relationship of free radical scavenging enzymes to fruit growth, development, ripening, and senescence in 'Red Delicious' apples
… were investigated during different stages of fruit bud growth and development in 'Red Spur Delicious' apples (Molus domestica Borkh.). Changes in the activities of these enzymes were also monitored at harvest and during cold storage in relation to ripening, senescence, and scald development. …
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Isolation and molecular characterisation of two Pseudomonas sp. ACC deaminase genes
… processes, of which the control of climacteric fruit ripening is among the best characterised. However this hormone eventually causes fruit rotting which results in a non-marketable product. One approach to reduce ethylene synthesis in plants is metabolism of its immediate precursor, …
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Characterization of molecular functions of polyamines in fruit development and ripening in tomato (Solanum lycopersicum)
… flowering, pollination, embryogenesis, fruit development, ripening, abscission, senescence, and stress responses. To elucidate molecular roles of PAs in fruit development and ripening, I characterized transgenic tomato plants ectopically expressing yeast spermidine synthase (ySpdSyn) or …
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Characterization of molecular functions of polyamines in fruit development and ripening in tomato (Solanum lycopersicum)
… flowering, pollination, embryogenesis, fruit development, ripening, abscission, senescence, and stress responses. To elucidate molecular roles of PAs in fruit development and ripening, I characterized transgenic tomato plants ectopically expressing yeast spermidine synthase (ySpdSyn) or …
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Characterization of Arabidopsis thaliana mutants defetive in auxin metabolism
… cell division, apical dominance, tropisms, and fruit ripening. The most abundant naturally occurring auxin is indole-3-acetic acid (IAA). IAA is found in plants both as the free acid and in conjugated forms. It is believed that the balance between IAA biosynthesis, metabolism, and transport …
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Ethylene response and phytohormone-mediated regulation of gene expression in Komagataeibacter xylinus ATCC 53582
Komagataeibacter xylinus ATCC 53582 is a fruit-associated, cellulose-producing bacterium that responds to and synthesizes phytohormones. This thesis elaborates on the ecophysiology of K. xylinus. Responses to indole-3-acetic acid (IAA), abscisic acid (ABA) and ethylene, produced in situ from …
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Effects of plastic mulch, row cover, and cultivar selection on growth of tomatoes (Lycopersicon esculerntum Mill.) in high tunnels
… significantly increases early yield of grade 1 fruit over all other treatments. Total early yields from BHN 543, and Merced were significantly greater than all other cultivars. Due to early fruit ripening characteristics, BHN 543 could fit into a double cropping system for growers wanting to …
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Valutazione dell'evoluzione della componente fenolica di Olea Europaea durante l'intero ciclo di maturazione del frutto
… the evolution of phenolic composition of olive fruit to demonstrate the relationship between the raw material sources and the compounds responsible for the healthy and sensory properties of virgin olive oil, and to investigate the mechanisms involved in the synthesis and/or in the degradation of …
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Effect of post-harvest treatment on ripening and quality of tomato fruit using ozone. Application of different ozone doses as controlled atmosphere storage for delay ripening and maintaining the quality of tomatoes and effect of ozone on antioxidant and sugar compounds at different stages of tomato fruit ripening.
… and versatility. However, the tomato is a soft fruit liable to damage and flavour deterioration. Hence, the main challenge for the tomato producing industry is to prevent the high loss incurred during harvest, handling and transportation of the crops. The objective of this study was to …
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Characterisation of the Auxin Signalling Pathway in Vitis vinifera L. cv. Shiraz
… cues. It has been found to be a repressor of ripening in grapes, and a decrease in berry auxin concentration is required to allow the initiation of ripening. To investigate the role of the auxin signalling pathway in grape, 19 VviARF transcription factors, 23 VviIAA repressors and six VviAFB …
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Regulation of ethylene biosynthesis by mitogen-activated protein kinase cascades in Arabidopsis
… to environmental stimuli. Ethylene induces the ripening of climacteric fruits, which is characterized by a steep increase in ethylene synthesis at the mature stage. In agriculture, removal of ethylene in hypobaric storage compartments prevents fruits from spoilage. Now fruit ripening can also be …
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The effect of potash in the base dressing on the incidence of simple fruit ripening disorders. A specific study of an autumn crop of tomatoes on an old glasshouse soil at a high phosphate level: A thesis submitted in partial fulfilment of the requirements of the Royal New Zealand Institute of Horticulture for the National Diploma in Horticulture
These studies concern an autumn crop of tomatoes planted early February in good light and high temperatures. By planting in February in good light, at least one conflicting aspect is removed: the effect of shorter days and poorer light of spring. Four commercial varieties were used. It is hoped …
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Potato genomics three ways: quantification of endoreduplication in tubers, a romp through the transposon terrain, and elucidation of flower color regulation
… it exerts on the flavonoid biosynthesis and fruit ripening pathways. This region was shown to be particularly dynamic, replete with MITEs and structural variants which we hypothesize to be the ultimate cause of differences in AN2 expression within the germplasm we examined. While the separate …
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Untersuchungen zur Regulation der Flavonoidbiosynthese im Kulturapfel Malus x domestica
… knock-out plants in all known phenotypes. In fruit material of M. x domestica, expression of selected structural genes, acitivity of the encoded enzymes and accumulation of metabolites could be shown to be correlated in two different years. Expression, enzyme activity and metabolite …
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Gamma and X-ray Irradiation Improve Postharvest Shelf-Life in 'Bartlett' Pears
… and ethylene production were measured during fruit ripening. Color, firmness, titratable acidity, soluble solids contents, and occurrence of superficial scald was measured at the climacteric peak. Ripening was accelerated in all pears during storage, and by day 75, the fruit ripened in three …
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Activity of the beta-cyanoalanine synthase pathway is associated with the response to abiotic stress by Arabidopsis thaliana.
… such as seed germination, seedling elongation, fruit ripening and senescence. Abiotic stresses increase ethylene production giving rise to `stress cyanide'. Cyanide also comes from metabolism of cyanogenic compounds. Cyanide is however, a toxic chemical which readily binds to metallo-enzymes …
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Characterisation of Flavonoid Composition and Glycosylating Enzymes in Sweet Cherry and Apple Fruit
… group of secondary metabolites found in fruits and vegetables, with the potential to confer various health benefits to humans upon ingestion, primarily attributed to their antioxidant and anti-inflammatory properties. Among polyphenols, flavonoids, the most abundant subset of polyphenolic …
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Isolation and characterization of latex-specific promoters from Papaver somniferum L.
… MLP146 and MLP149. MLP-like proteins function in fruit ripening in various species that do not have the laticifer cell type. The latex-specific promoters (LSPs) for the three genes were sequenced. The 2.5 kb DIOX promoter was fused to the reporter gene Β-glucuronidase (GUS) to characterize its …
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