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Showing 1 to 20 of 22 for “"Indole-3-Acetic Acid (IAA)"”.
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Characterization of Arabidopsis thaliana mutants defetive in auxin metabolism
… 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 determines the actual levels of IAA in a cell at any given time, …
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Ethylene response and phytohormone-mediated regulation of gene expression in Komagataeibacter xylinus ATCC 53582
… 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. xylinus cellulose production and expression of cellulose biosynthesis-related genes …
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THERMOSTABLE EXOSHELLS AS TOOLS FOR RECOMBINANT PROTEIN EXPRESSION AND IN VIVO DELIVERY
… and that the internalized enzymes can hydrolyze indole-3-acetic acid (IAA) into reactive intermediates. tES specifically mediates endocytotic uptake of the enzyme into MDA-MB-231 and systemic treatment with IAA in the presence of locally administered tES(+)/tES-HRP results in complete tumor …
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Examination of auxin transport and root development in the scd1-1 mutant in Arabidopsis thaliana
The hormone indole-3-acetic acid (IAA) is transported unidirectionally in plant cells via asymmetrically localized carrier proteins. This polarity is believed to be established and maintained by vesicular delivery and endosomal cycling of these proteins. The SCD1 (stomatal cytokinesis defective) …
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KINETIC ANALYSIS OF AUXIN-INDUCED TRANSCRIPTION FACTOR NETWORKS CONTROLLING LATERAL ROOT DEVELOPMENT IN ARABIDOPSIS THALIANA
… An 8-timepoint microarray of roots treated with indole-3-acetic acid (IAA), the major form of auxin, was utilized to identify the transcriptome wide kinetics of auxin response. This microarray allowed identification of novel auxin responsive genes beyond those found in four other auxin microarray …
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Understanding and Engineering Chemically Activated Ubiquitin Ligases for High-throughput Detection, Quantification, and Control of Molecules in Yeast
… and humans. Certain fungi produce auxin or indole-3-acetic acid (IAA), a crucial plant growth hormone that influences various aspects of plant growth and defense mechanisms. Conversely, pathogenic fungi can produce auxin and manipulate auxin signaling in their host plant to promote fungal …
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Chemometric Analysis of Multivariate Liquid Chromatography Data: Applications in Pharmacokinetics, Metabolomics, and Toxicology
… were analyzed, specifically focusing on indole-3-acetic acid (IAA) and related compounds. Window target testing factor analysis was used to identify the spectral groups represented by the standards in the mutant and wild-type chromatograms. Two curve resolution algorithms were applied to …
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Characterization of a major cluster of genes involved in nitrogen fixation and another required for indole-3-acetic acid biosynthesis in the sugarcane endophyte, Acetobacter diazotrophicus
… A plant growth promoting substance like indole-3-acetic acid (IAA) may represent the latter effect that accounts for improved plant growth. My first project was to characterize the genes responsible for nitrogen fixation, and determine their regulation. In summary, I have isolated, …
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Circadian regulation and phytohormone responses of cytochrome P450 monooxygenase genes in Arabidopsis
… syntheses are circadian-regulated (e.g. jasmonic acid, auxin) and the time-of-day-specific transcripts of cytochrome P450 monooxygenases (P450s) involved in their syntheses and catabolisms suggest an interactions between hormone signaling network and circadian signaling network. The first phase of …
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Uncovering Auxin Biosynthesis for Fungal Regulation Using CRISPR-Based Gene Knockouts in S. Cerevisiae
Auxin (indole-3-acetic acid, IAA) is a key phytohormone that shapes both beneficial and pathogenic plant–microbe interactions. While IAA biosynthesis is well characterized in plants and some bacterial species, the metabolic pathways responsible for auxin production in fungi remain poorly …
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Physiological, hormonal and metabolic alterations caused by selenium in rice seedlings
… of ethylene, 1- aminocyclopropane-1-carboxylic acid (ACC) and indole-3-acetic acid (IAA) in roots of rice seedlings treated with selenite as compared with the control. Selenite led to decreased expression of genes associated with the biosynthesis of auxin and ethylene, concomitantly with reduced …
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Effect of a heavy metal on ecto- and vesicular-arbuscular mycorrhizal fungi: the physiology, ultrastructure, and ecology of copper stress and tolerance
… for the branching is demonstrated to be indole-3-acetic acid (IAA), a plant growth hormone. The final two chapters deal with endomycorrhizal fungi. In the first of the two, inoculation of onion with an endomycorrhizal fungus demonstrates that the fungus probably plays no direct role in …
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De novo morphogenesis on tomato thin cell layers and variation for genetic recombination among plantlets regenerated from tissue culture
… when media contained 10µM kinetin and 0.001µM indole-3-acetic acid (IAA); however, shoot regeneration was increased in subsequent experiments by substituting 10 µM zeatin or 10 µM benzyladenine for kinetin. Root formation occurred when media contained higher (0.1 and 10µM) auxin concentrations. …
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Effects of co-inoculation of Delftia acidovorans RAY209 on the growth of Bradyrhizobium diazoefficiens USDA110 inoculated Glycine max
… diazoeffeciens USDA110 and PGPR Delftia acidovorans RAY209 can enhance plant growth and enhance stress tolerance, as well as to identify the underlying mechanisms. The first study successfully cultured and tested the salt tolerance of USDA110 and RAY209 in vitro where RAY209 exhibit good …
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THE ROLE OF MICROBIAL ENDOSYMBIONTS IN SORGHUM HALEPENSE INVASIONS: EVIDENCE OF A NEW INVASION STRATEGY, MICROBIALLY ENHANCED COMPETITIVE ABILITY (MECA)
… and production of the plant-growth hormone indole-3-acetic acid (IAA). In long-term field studies conducted within the Fort Worth Nature Center & Refuge spanning 46-months, alterations to several soil biogeochemical cycles across an <i>S. halepense</i> invasion gradient were documented. …
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THE ROLE OF MICROBIAL ENDOSYMBIONTS IN SORGHUM HALEPENSE INVASIONS: EVIDENCE OF A NEW INVASION STRATEGY, MICROBIALLY ENHANCED COMPETITIVE ABILITY (MECA)
… and production of the plant-growth hormone indole-3-acetic acid (IAA). In long-term field studies conducted within the Fort Worth Nature Center & Refuge spanning 46-months, alterations to several soil biogeochemical cycles across an <i>S. halepense</i> invasion gradient were documented. …
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Identification of pyruvate decarboxylase/indole pyruvate decarboxylase gene family members from Arabidopsis thaliana.
… enzymes, including pyruvate decarboxylase (PDC), indole pyruvate decarboxylase (IPDC), and acetohydroxy acid synthase. PDC is a critical enzyme in plant metabolism that regulates energy production especially during periods of anaerobic stress. IPDC has long been proposed as a key enzyme in the …
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Functional characterisation of NIC2, a member of the MATE family from Arabidopsis thaliana (L.) Heynh.
… chloride (TMACl) and a toxic analogue of indole-3-acetic acid, 5-fluoro-indole-acetic acid (F-IAA). Therefore, NIC2 may be able to transport a broad range of drug and toxic compounds. In wild-type yeast the expression of NIC2 increased the tolerance towards lithium and sodium, but not …
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PHYSIOLOGICAL STUDIES USING TISSUE CULTURES OF PLATYCERIUM CORONARIUM (KOENIG) DESV
… cobalt chloride and salicylic acid) were ineffective in increasing sporophyte regeneration. Also, 1-aminocyclopropane-1-carboxylic acid, the ethylene precursor, was ineffective it, increasing the level of ethylene in the culture vessels. Therefore, the biosynthetic pathway of …
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Discovery, surveillance, and management of herbicide-resistant amaranthus spp
… two unreported SNPs which result in amino acid substitutions (D414N and C277S) were observed. This is the first report of PPO resistance in A. retroflexus from the United States. Early and rapid identification of developing herbicide-resistant populations is essential for control and …
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