ethylene/arabidopsis thaliana

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Ethylene Improves Root System Development under Cadmium Stress by Modulating Superoxide Anion Concentration in Arabidopsis thaliana.

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This work aims at identifying the effects of ethylene on the response of Arabidopsis thaliana root system to cadmium chloride (CdCl2) stress. Two ethylene-insensitive mutants, ein2-5 and ein3-1eil1-1, were subjected to (25, 50, 75, and 100 μM) CdCl2 concentrations, from which 75 μM concentration

Identification of genes of the plant-specific transcription-factor families cooperatively regulated by ethylene and jasmonate in Arabidopsis thaliana.

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The analysis of expression patterns of transcription-factor genes will be the basis for a better understanding of their biological functions in plants. In this study, we designed and developed an oligo-DNA macroarray consisting of gene-specific probes of 60-65 nucleotides for 288

The sax1 dwarf mutant of Arabidopsis thaliana shows altered sensitivity of growth responses to abscisic acid, auxin, gibberellins and ethylene and is partially rescued by exogenous brassinosteroid.

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Genetic approaches using Arabidopsis thaliana aimed at the identification of mutations affecting events involved in auxin signalling have usually led to the isolation of auxin-resistant mutants. From a selection screen specifically developed to isolate auxin-hypersensitive mutants, one mutant line

Ethylene advances the transition from vegetative growth to flowering in Arabidopsis thaliana.

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The transition from vegetative growth to flowering is the most drastic change in plant development. In order to examine the involvement of ethylene in growth transition, we compared the development of ethylene-related mutants, eto1, etr1, ein2-1 and ein3-1, with the wild type (WT) in Arabidopsis

Genetic identification of a second site modifier of ctr1-1 that controls ethylene-responsive and gravitropic root growth in Arabidopsis thaliana.

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Ethylene controls myriad aspects of plant growth throughout developmental stages in higher plants. It has been well established that ethylene-responsive growth entails extensive crosstalk with other plant hormones, particularly auxin. Here, we report a genetic mutation, named 1-aminocyclopropane

Assessment of inequality of root hair density in Arabidopsis thaliana using the Gini coefficient: a close look at the effect of phosphorus and its interaction with ethylene.

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OBJECTIVE Root hair density (i.e. the number of root hairs per unit root length) in Arabidopsis thaliana varies among individual plants in response to different nutrient stresses. The degree of such variation, defined as inequality, serves as a unique indicator of the uniformity of response within a

Disease development in ethylene-insensitive Arabidopsis thaliana infected with virulent and avirulent Pseudomonas and Xanthomonas pathogens.

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The plant hormone ethylene has been hypothesized to play roles both in disease resistance and in disease susceptibility. These processes were examined by using isogenic virulent and avirulent bacterial pathogens and mutants of Arabidopsis thaliana that were altered in ethylene physiology.

Ethylene-induced differential petiole growth in Arabidopsis thaliana involves local microtubule reorientation and cell expansion.

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• Hyponastic growth is an upward petiole movement induced by plants in response to various external stimuli. It is caused by unequal growth rates between adaxial and abaxial sides of the petiole, which bring rosette leaves to a more vertical position. The volatile hormone ethylene is a key regulator

Jasmonate and ethylene signaling mediate whitefly-induced interference with indirect plant defense in Arabidopsis thaliana.

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Upon herbivore attack, plants activate an indirect defense, that is, the release of a complex mixture of volatiles that attract natural enemies of the herbivore. When plants are simultaneously exposed to two herbivore species belonging to different feeding guilds, one herbivore may interfere with

Unique ethylene-regulated touch responses of Arabidopsis thaliana roots to physical hardness.

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Although touch responses of plant roots are an important adaptive behavior, the molecular mechanism remains unclear. We have developed a bioassay for measuring root-bending responses to physical hardness in Arabidopsis thaliana seedlings. Our test requires a two-layer solid medium. Primary roots

Oxygen control of ethylene biosynthesis during seed development in Arabidopsis thaliana (L.) Heynh.

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An unforeseen side-effect on plant growth in reduced oxygen is the loss of seed production at concentrations around 25% atmospheric (50 mmol mol-1 O2). In this study, the model plant Arabidopsis thaliana (L.) Heynh. cv. 'Columbia' was used to investigate the effect of low oxygen on ethylene

Ethylene negatively regulates EXPA5 expression in Arabidopsis thaliana.

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We examined the effects of ethylene on the expression of Arabidopsis expansins (AtEXPs). Among the AtEXPs tested, transcription of the AtEXPA5 gene was reduced most by exogenous ethylene. 2-Aminoethoxyvinylglycine, an ethylene biosynthesis inhibitor, increased AtEXPA5 transcription. Ethylene

Genetic analysis of ethylene responses in Arabidopsis thaliana.

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The plant hormone ethylene mediates a number of developmental processes and responses to environmental stress in higher plants. Our research efforts over the last three years have been focused on developing an understanding of the molecular basis of ethylene action in plants. To this end, we have

Subcloning, crystallization and preliminary X-ray analysis of the signal receiver domain of ETR1, an ethylene receptor from Arabidopsis thaliana.

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The signal receiver domain of ETR1, an ethylene receptor from Arabidopsis thaliana, has been subcloned and expressed in E. coli and purified by affinity chromatography. Crystals of both native and a selenomethionine-substituted form of the receiver domain have been obtained. Native crystals grew in

Isolation and characterization of a gene involved in ethylene biosynthesis from Arabidopsis thaliana.

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The ethylene forming enzyme (EFE) is a key factor in ethylene biosynthesis. To understand better the regulation of ethylene biosynthesis in vegetative tissues, we set out to isolate and characterize a complementary DNA (cDNA) encoding the EFE from Arabidopsis thaliana. An A. thaliana cDNA library

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