Français
Albanian
Arabic
Armenian
Azerbaijani
Belarusian
Bengali
Bosnian
Catalan
Czech
Danish
Deutsch
Dutch
English
Estonian
Finnish
Français
Greek
Haitian Creole
Hebrew
Hindi
Hungarian
Icelandic
Indonesian
Irish
Italian
Japanese
Korean
Latvian
Lithuanian
Macedonian
Mongolian
Norwegian
Persian
Polish
Portuguese
Romanian
Russian
Serbian
Slovak
Slovenian
Spanish
Swahili
Swedish
Turkish
Ukrainian
Vietnamese
Български
中文(简体)
中文(繁體)
beta amylase/arabidopsis
Le lien est enregistré dans le presse-papiers
Page 1 de 55 résultats
The gene encoding the catalytically inactive beta-amylase BAM4 involved in starch breakdown in Arabidopsis leaves is expressed preferentially in vascular tissues in source and sink organs.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
Genetic studies in Arabidopsis thaliana have shown that two members of the beta-amylase (BAM) family BAM3 and BAM4 are required for leaf starch breakdown at night. Both are plastid proteins and while BAM3 encodes an active BAM, BAM4 is not an active alpha-1,4-glucan hydrolase. To gain further
The evolution of functional complexity within the β-amylase gene family in land plants.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
An Arabidopsis gene encoding a chloroplast-targeted beta-amylase.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
beta-Amylase is one of the most abundant starch degrading activities found in leaves and other plant organs. Despite its abundance, most if not all of this activity has been reported to be extrachloroplastic and for this reason, it has been assumed that beta-amylases are not involved in the
Identification and characterization of a phloem-specific beta-amylase.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
A monoclonal antibody, RS 5, was raised by injecting sieve elements isolated from tissue cultures of Streptanthus tortuosus (Brassicacae) into BALB/c mice and screening resultant hybridoma supernatants for the labeling of phloem using immunofluorescence microscopy. The RS 5 monoclonal antibody
Solution structure and assembly of β-amylase 2 from Arabidopsis thaliana.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
Starch is a key energy-storage molecule in plants that requires controlled synthesis and breakdown for effective plant growth. β-Amylases (BAMs) hydrolyze starch into maltose to help to meet the metabolic needs of the plant. In the model plant Arabidopsis thaliana there are nine BAMs, which have
LIKE SEX4 1 Acts as a β-Amylase-Binding Scaffold on Starch Granules during Starch Degradation.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
In Arabidopsis (Arabidopsis thaliana) leaves, starch is synthesized during the day and degraded at night to fuel growth and metabolism. Starch is degraded primarily by β-amylases, liberating maltose, but this activity is preceded by glucan phosphorylation and is accompanied by
Purification of a beta-Amylase that Accumulates in Arabidopsis thaliana Mutants Defective in Starch Metabolism.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
Amylase activity is elevated 5- to 10-fold in leaves of several different Arabidopsis thaliana mutants defective in starch metabolism when they are grown under a 12-hour photoperiod. Activity is also increased when plants are grown under higher light intensity. It was previously determined that the
Negative regulation in the expression of a sugar-inducible gene in Arabidopsis thaliana. A recessive mutation causing enhanced expression of a gene for beta-amylase.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
Expression of a beta-amylase gene of Arabidopsis thaliana (AT beta-Amy) is regulated by sugars. We identified a mutant, hba1, in which the level of expression of AT beta-Amy in leaves of plants that had been grown in a medium with 2% sucrose was significantly higher than that in wild-type plants.
Mutants of Arabidopsis thaliana with pleiotropic effects on the expression of the gene for beta-amylase and on the accumulation of anthocyanin that are inducible by sugars.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
We identified a mutant of Arabidopsis thaliana ectotype Col-O in which significantly reduced levels of expression of the gene for beta-amylase (AT beta-Amy) were detected in leaves in response to high concentrations of sucrose, glucose or fructose. Genetic studies, including a cross with transgenic
Altered regulation of beta-amylase activity in mutants of Arabidopsis with lesions in starch metabolism.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
Three classes of mutants of Arabidopsis thaliana (L.) Heynhold with alterations in starch metabolism were found to have higher levels of leaf amylase activity than the wild type when grown in a 12-hr photoperiod. This effect was dependent upon the developmental stage of the plants and was largely
The Enzyme-Like Domain of Arabidopsis Nuclear β-Amylases Is Critical for DNA Sequence Recognition and Transcriptional Activation.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
Plant BZR1-BAM transcription factors contain a β-amylase (BAM)-like domain, characteristic of proteins involved in starch breakdown. The enzyme-derived domains appear to be noncatalytic, but they determine the function of the two Arabidopsis thaliana BZR1-BAM isoforms (BAM7 and BAM8) during
Thioredoxin-regulated beta-amylase (BAM1) triggers diurnal starch degradation in guard cells, and in mesophyll cells under osmotic stress.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
BAM1 is a plastid-targeted β-amylase of Arabidopsis thaliana specifically activated by reducing conditions. Among eight different chloroplast thioredoxin isoforms, thioredoxin f1 was the most efficient redox mediator, followed by thioredoxins m1, m2, y1, y2, and m4. Plastid-localized
Redox regulation of a novel plastid-targeted beta-amylase of Arabidopsis.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
Nine genes of Arabidopsis (Arabidopsis thaliana) encode for beta-amylase isozymes. Six members of the family are predicted to be extrachloroplastic isozymes and three contain predicted plastid transit peptides. Among the latter, chloroplast-targeted beta-amylase (At4g17090) and thioredoxin-regulated
Sugar-inducible expression of a gene for beta-amylase in Arabidopsis thaliana.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
The levels of beta-amylase activity and of the mRNA for beta-amylase in rosette leaves of Arabidopsis thaliana (L.) Heynh. increased significantly, with the concomitant accumulation of starch, when whole plants or excised mature leaves were supplied with sucrose. A supply of glucose or fructose, but
Beta-AMYLASE4, a noncatalytic protein required for starch breakdown, acts upstream of three active beta-amylases in Arabidopsis chloroplasts.
Seuls les utilisateurs enregistrés peuvent traduire des articles
Se connecter S'inscrire
This work investigated the roles of beta-amylases in the breakdown of leaf starch. Of the nine beta-amylase (BAM)-like proteins encoded in the Arabidopsis thaliana genome, at least four (BAM1, -2, -3, and -4) are chloroplastic. When expressed as recombinant proteins in Escherichia coli, BAM1, BAM2,
La base de données d'herbes médicinales la plus complète soutenue par la science
- Fonctionne en 55 langues
- Cures à base de plantes soutenues par la science
- Reconnaissance des herbes par image
- Carte GPS interactive - étiquetez les herbes sur place (à venir)
- Lisez les publications scientifiques liées à votre recherche
- Rechercher les herbes médicinales par leurs effets
- Organisez vos intérêts et restez à jour avec les nouvelles recherches, essais cliniques et brevets
Tapez un symptôme ou une maladie et lisez des informations sur les herbes qui pourraient aider, tapez une herbe et voyez les maladies et symptômes contre lesquels elle est utilisée.
* Toutes les informations sont basées sur des recherches scientifiques publiées
