glycine betaine/zandraket

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Glycine betaine involvement in freezing tolerance and water stress in Arabidopsis thaliana.

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Levels of endogenous glycine betaine in the leaves were measured in response to cold acclimation, water stress and exogenous ABA application in Arabidopsis thaliana. The endogenous glycine betaine level in the leaves increased sharply during cold acclimation treatment as plants gained freezing

Overexpression of ALDH10A8 and ALDH10A9 Genes Provides Insight into Their Role in Glycine Betaine Synthesis and Affects Primary Metabolism in Arabidopsis thaliana.

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Betaine aldehyde dehydrogenases oxidize betaine aldehyde to glycine betaine in species that accumulate glycine betaine as a compatible solute under stress conditions. In contrast, the physiological function of betaine aldehyde dehydrogenase genes is at present unclear in species that do not

Production of the Escherichia coli betaine-aldehyde dehydrogenase, an enzyme required for the synthesis of the osmoprotectant glycine betaine, in transgenic plants.

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In several organisms osmotic stress tolerance is mediated by the accumulation of the osmoprotective compound glycine betaine. With the ambition to transfer the betaine biosynthetic pathway into plants not capable of synthesizing this osmoprotectant, the Escherichia coli gene betB encoding the second

Transcriptional enhancement of a bacterial choline oxidase A gene by an HSP terminator improves the glycine betaine production and salinity stress tolerance of Eucalyptus camaldulensis trees.

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Novel transgenic Eucalyptus camaldulensis trees expressing the bacterial choline oxidase A (codA) gene by the Cauliflower mosaic virus (CaMV) 35S promoter and the Arabidopsis thalianaheat shock protein (HSP) terminator was developed. To evaluate the

AtGAT1, a high affinity transporter for gamma-aminobutyric acid in Arabidopsis thaliana.

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Functional characterization of Arabidopsis thaliana GAT1 in heterologous expression systems, i.e. Saccharomyces cerevisiae and Xenopus laevis oocytes, revealed that AtGAT1 (At1g08230) codes for an H(+)-driven, high affinity gamma-aminobutyric acid (GABA) transporter. In addition to GABA, other

An unusual posttranscriptional processing in two betaine aldehyde dehydrogenase loci of cereal crops directed by short, direct repeats in response to stress conditions.

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Various abilities to synthesize and accumulate glycine betaine (GB) are crucial for angiosperms to develop salt and drought tolerances. In higher plants, GB is synthesized by a two-step oxidation of choline via an intermediate form of betaine aldehyde, and catalyzed by choline monooxygenase and

Betaine aldehyde dehydrogenase genes from Arabidopsis with different sub-cellular localization affect stress responses.

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Arabidopsis thaliana belongs to those plants that do not naturally accumulate glycine betaine (GB), although its genome contains two genes, ALDH10A8 and ALDH10A9 that code for betaine aldehyde dehydrogenases (BADHs). BADHs were initially known to catalyze the last step of the biosynthesis of GB in

A bHLH gene from Tamarix hispida improves abiotic stress tolerance by enhancing osmotic potential and decreasing reactive oxygen species accumulation.

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Basic helix-loop-helix (bHLH) leucine-zipper transcription factors play important roles in abiotic stress responses. However, their specific roles in abiotic stress tolerance are not fully known. Here, we functionally characterized a bHLH gene, ThbHLH1, from Tamarix hispida in abiotic stress

Involvement of abscisic acid-responsive element-binding factors in cassava (Manihot esculenta) dehydration stress response.

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Cassava (Manihot esculenta) is a major staple food, animal feed and energy crop in the tropics and subtropics. It is one of the most drought-tolerant crops, however, the mechanisms of cassava drought tolerance remain unclear. Abscisic acid (ABA)-responsive element (ABRE)-binding factors (ABFs) are

Osmyb4 expression improves adaptive responses to drought and cold stress in transgenic apples.

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Constitutive expression of the rice cold-inducible Osmyb4 gene in transgenic Arabidopsis (Arabidopsis thaliana) plants improves adaptive responses to cold and drought stress, most likely due to the constitutive activation of several stress-inducible pathways and to the accumulation of several

In planta function of compatible solute transporters of the AtProT family.

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The three proline transporters of Arabidopsis thaliana (AtProTs) transport the compatible solutes proline and glycine betaine and the stress-induced compound γ-aminobutyric acid when expressed in heterologous systems. The aim of the present study was to show transport and physiological relevance of

Thermopriming reprograms metabolic homeostasis to confer heat tolerance.

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Heat stress threatens agriculture worldwide. Plants acquire heat stress tolerance through priming, which establishes stress memory during mild or severe transient heat stress. Such induced thermotolerance restructures metabolic networks and helps maintain metabolic homeostasis under heat stress.

The AtProT family. Compatible solute transporters with similar substrate specificity but differential expression patterns.

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Proline transporters (ProTs) mediate transport of the compatible solutes Pro, glycine betaine, and the stress-induced compound gamma-aminobutyric acid. A new member of this gene family, AtProT3, was isolated from Arabidopsis (Arabidopsis thaliana), and its properties were compared to AtProT1 and

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