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Showing 1 to 20 of 42 for “"phytohormones"”.
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Phytohormones and the Culture of Agaricus bisporus (Lange) Pilat
Addition of synthetic phytohormones (auxin, gibberellin and cytokinin) to Agaricus bisporus culture matte promoted mycelial growth significantly at concentrations of 16° - 107 M. Most of the tested phytohormones were more effective in growth promotion in liquid culture rather than on semi-solid …
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Investigating the role of phytohormones during desiccation in two evolutionarily distinct resurrection plants
Most plants encounter challenges brought on by various abiotic stressors which subsequently prompt adaptations to mitigate these challenges. Water deficit brought about by drought conditions is a significant abiotic stressor that impacts crop productivity, ultimately threatening global food …
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Endogenous Phytohormones in Relation to the Dwarfing Capability of Certain Size-Controlling Apple Rootstock Clones
Made available in DSpace on 2014-12-12T00:57:22Z (GMT). No. of bitstreams: 1 7310090.pdf: 3658135 bytes, checksum: b7ec21931276aad035445abce2cd68bf (MD5) Previous issue date: 1972
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Ethylene response and phytohormone-mediated regulation of gene expression in Komagataeibacter xylinus ATCC 53582
… 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 ethephon, were of particular focus. The effect of these phytohormones on K. …
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Characterization of sugar-insensitive mutants and analysis of sugar-regulated gene expression in Arabidopsis thaliana
… wild-type and mutant responses to sugars and the phytohormones abscisic acid, ethylene, and gibberellin have been undertaken. Sugar-insensitive mutants were isolated based on their ability to form true leaves and expanded cotyledons in the presence of high concentrations (0.27 M to 0.34 M) of …
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Signal-metabolome interactions in plants
… multi-selective method for the determination of phytohormones was developed and optimised, complementing the profile analyses which are already in use (Chapter I). The general feasibility of a simultaneous analysis of plant metabolites and phytohormones in one sample set-up was tested by studies …
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Chemically Induced Phytoextraction of Lead (Pb) Contaminated Soil by Switchgrass (Panicum virgatum L.)
… chelator nitrilotriacetic acid (NTA), and the phytohormones salicylic acid (SA) and benzylaminopurine (BAP) were tested on switchgrass grown in Pb contaminated soil from a former superfund site in Cedartown, GA. The soil chemical manipulation aimed at increasing the bioavailability and uptake …
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Molecular characterization of XvlNO1, a myo-inositol 1-phosphate synthase gene from Xerophyta viscosa
… include membrane components, storage molecules, phytohormones and a variety of osmoprotectants. Xerophyta viscosa Baker (Family Velloziaceae) is a monocotyledonous angiosperm which has the ability to resume full physiological function after desiccation. The full-length cDNA for INO1 from X …
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Improving biomass of the marine microalga Nannochloropsis oculata by chemical elicitation
… (e.g., lipids), but supplementation with phytohormones is another viable method for promoting specialised metabolite accumulation. The eustigmatophyte Nannochloropsis oculata, an industrially used species, was cultured autotrophically in the presence of methyl jasmonate (MJ) and salicylic …
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Engineering and deploying FRET-based biosensors to illuminate cellular phytohormone dynamics coordinating environmental stress responses
Synthesised in plants in small quantities, phytohormones are naturally occurring chemical messengers that play critical roles in regulating plant growth and development as well as triggering responses to external stimuli. The precise regulation of phytohormone biosynthesis, catabolism and transport …
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Characterization of Arabidopsis thaliana mutants defetive in auxin metabolism
Auxins are an important class of phytohormones that play a critical role in various aspects of plant growth and development such as cell elongation, cell division, apical dominance, tropisms, and fruit ripening. The most abundant naturally occurring auxin is indole-3-acetic acid (IAA). IAA is found …
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Use of Bacillus subtilis starter cultures during red sorghum malting
… effect of the biocontrol treatment and that of phytohormones produced by the bacterial strain used on the synthesis of specific red sorghum enzymes are elucidated. Gibberellic acid and abscisic acid diffusion and cross-talk as factors affecting the synthesis of red sorghum malt α- and β-amylase …
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Regulace zakládání hlíz u bramboru: role auxinu
… and StP6A signaling pathways seem to overlap. Phytohormones also play an important signaling role, i.a. auxins. During tuber initiation, IAA levels in stolon tissues increase. PIN transporters are likely to be involved in the redistribution of auxin in the stolon, but also LAX and ABCB …
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In vitro tissue culture: Towards conservation of threatened desiccation sensitive Encephalartos cycads seeds
… thus the second study assessed the levels of phytohormones in E. altensteinii seed tissues (embryos and megagametophytes) of the same age as those used in the in vitro regeneration. Phytohormones, as well as multiple phytohormone interactions (i.e. interplay between Abscisic acid (ABA) and …
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How the fas locus contributes to Rhodococcus fascians cytokinin production: an in-depth molecular and biochemical analysis
… phytohormone production or by producing phytohormones themselves. The Actinomycete Rhodococcus fascians provokes the formation of differentiated leafy galls consisting of numerous shoot primordia that are inhibited in further outgrowth. Based on the shooty phenotype and the presence of an …
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Metabolomic approaches to understanding the auxin and ethylene response in Arabidopsis roots
… to develop framework models that connect phytohormones and specialized metabolism with specific physiological processes. Previous studies by imaging techniques have shown that flavonols increase in response to both auxin and ethylene in the root elongation zone, but LC-MS showed that …
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Induced defenses in apple fruits: linking fruit chemistry, quality, and plant-insect-microbe interactions
… chemistry, and 2) examine the impact of the phytohormones jasmonic acid (JA), salicylic acid (SA), and melatonin (M) on fruit phenolic chemistry and resistance against pests and pathogens. Ultimately, phenolic defenses were induced by fungal damage primarily in ripe pulp tissues, where there …
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Phytoextraction of Lead from Contaminated Urban Soils by Panicum virgatum Enhanced with Phytohormone, EDTA, Benomyl, and Citric Acid Application
… benomyl, chelates (EDTA and citric acid), and phytohormones for phytoextraction of Pb from contaminated urban soils in Atlanta, GA. EDTA is often regarded as the most effective chelate, but has potential problems associated with its use due to long persistence time in soil and possible Pb …
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The role of strigolactone and auxin in the regulation of shoot branching
… complex interaction of many signals, of which phytohormones are among the main actors. In this thesis I investigate the role of strigolactone and auxin in controlling bud growth dynamics and their effect on plant branching levels and development more generally. Firstly, I present a novel …
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ATGLR3.7 AS NEGATIVE REGULATOR OF ATGLR3.3 MEDIATED STRESS RESPONSES
… of multiple factors: second messengers, phytohormones, metabolites and a whole variety of molecules involved into the perception, distribution, and transduction of stress signals. Recent studies have demonstrated that wounding-driven long-distance propagation of Ca2+ waves depend on the …
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