Deutsch
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)
protoporphyrin/tabak
Der Link wird in der Zwischenablage gespeichert
Seite 1 von 17 Ergebnisse
Cloning and expression of the tobacco CHLM sequence encoding Mg protoporphyrin IX methyltransferase and its interaction with Mg chelatase.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
S-adenosyl-L-methionine:Mg-protoporphyrin IX methyltransferase (MgPMT) is an enzyme in the Mg branch of the tetrapyrrole biosynthetic pathway. The nucleotide sequence of tobacco (Nicotiana tabacum) CHLM was identified and the cDNA sequence was used to express the precursor, the mature and a
LCAA, a novel factor required for magnesium protoporphyrin monomethylester cyclase accumulation and feedback control of aminolevulinic acid biosynthesis in tobacco.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
Low Chlorophyll Accumulation A (LCAA) antisense plants were obtained from a screen for genes whose partial down-regulation results in a strong chlorophyll deficiency in tobacco (Nicotiana tabacum). The LCAA mutants are affected in a plastid-localized protein of unknown function, which is conserved
Inducible expression of magnesium protoporphyrin chelatase subunit I (CHLI)-amiRNA provides insights into cucumber mosaic virus Y satellite RNA-induced chlorosis symptoms.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
Recent studies with Y satellite RNA (Y-sat) of cucumber mosaic virus have demonstrated that Y-sat modifies the disease symptoms in specific host plants through the silencing of the magnesium protoporphyrin chelatase I subunit (CHLI), which is directed by the Y-sat derived siRNA. Along with the
Isolation and characterisation of tobacco (Nicotiana tabacum) cDNA clones encoding proteins involved in magnesium chelation into protoporphyrin IX.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
We have identified cDNA clones encoding the two Mg chelatase subunits CHL I and CHL H from tobacco (Nicotiana tabacum) by screening a cDNA library with homologous cDNA fragments from Arabidopsis thaliana. A full-length Chl I cDNA clone encodes a peptide with 426 amino acids. The entire cDNA sequence
Molecular Simulations Bring New Insights into Protoporphyrinogen IX Oxidase/Protoporphyrinogen IX Interaction Modes.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
Protoporphyrinogen IX oxidase (PPO, EC 1.3.3.4) catalyzes the oxidation of protoporphyrinogen IX (protogen IX) to protoporphyrin IX (proto IX) in the haem/chlorophyll biosynthetic pathway. Although extensive studies of PPO have already afforded many insights into its biological function and its
Coproporphyrinogen III oxidase from barley and tobacco--sequence analysis and initial expression studies.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
Coproporphyrinogen III oxidase (coprogen oxidase; EC 1.3.3.3) is part of the pathway from 5-amino-levulinate to protoporphyrin IX which is common in all organisms and catalyses oxidative decarboxylation at two tetrapyrrole side chains. We cloned and sequenced full-length cDNAs encoding coprogen
Impaired expression of the plastidic ferrochelatase by antisense RNA synthesis leads to a necrotic phenotype of transformed tobacco plants.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
Protoporphyrin IX is the last common intermediate of tetrapyrrole biosynthesis. The chelation of a Mg2+ ion by magnesium chelatase and of a ferrous ion by ferrochelatase directs protoporphyrin IX towards the formation of chlorophyll and heme, respectively. A full length cDNA clone encoding a
In planta transient expression as a system for genetic and biochemical analyses of chlorophyll biosynthesis.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
BACKGROUND
Mg chelatase is a multi-subunit enzyme that catalyses the first committed step of chlorophyll biosynthesis. Studies in higher plants and algae indicate that the Mg chelatase reaction product, Mg-protoporphyrin IX plays an essential role in nuclear-plastid interactions. A number of Mg
Coproporphyrinogenase in tobacco (Nicotiana tabacum L.).
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
1. Coproporphyrinogenase was extracted and purified from tobacco (Nicotiana tabacum L.). Enzyme activity was mainly located in mitochondria rather than in chloroplasts. The enzyme was purified by differential centrifugation, ammonium sulphate fractionation, calcium phosphate gel adsorption and
Overexpression of plastidic protoporphyrinogen IX oxidase leads to resistance to the diphenyl-ether herbicide acifluorfen.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
The use of herbicides to control undesirable vegetation has become a universal practice. For the broad application of herbicides the risk of damage to crop plants has to be limited. We introduced a gene into the genome of tobacco (Nicotiana tabacum) plants encoding the plastid-located
Roles of the different components of magnesium chelatase in abscisic acid signal transduction.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
The H subunit of Mg-chelatase (CHLH) was shown to regulate abscisic acid (ABA) signaling and the I subunit (CHLI) was also reported to modulate ABA signaling in guard cells. However, it remains essentially unknown whether and how the Mg-chelatase-catalyzed Mg-protoporphyrin IX-production differs
Beneficial role of Acetylcholine in chlorophyll metabolism and photosynthesis gas exchange in Nicotiana benthamiana seedlings under salinity stress.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
Acetylcholine (ACh) is believed to improve plant growth. However, regulation at biochemical and molecular levels is largely unknown. Present study investigated the impact of exogenously applied ACh (10 µM) on the growth and chlorophyll metabolism in hydroponically grown N. benthamiana under salt
Manganese toxicity to chlorophyll synthesis in tobacco callus.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
Tobacco (Nicotiana tabacum) pith explants were grown on manganese containing medium. At moderate concentration (10 millimolar), manganese selectively inhibited chlorophyll synthesis, resulting initially in growth of white callus. Several weeks later the white callus turned brown due to the
A viral satellite RNA induces yellow symptoms on tobacco by targeting a gene involved in chlorophyll biosynthesis using the RNA silencing machinery.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
Symptoms on virus-infected plants are often very specific to the given virus. The molecular mechanisms involved in viral symptom induction have been extensively studied, but are still poorly understood. Cucumber mosaic virus (CMV) Y satellite RNA (Y-sat) is a non-coding subviral RNA and modifies the
Role of magnesium chelatase activity in the early steps of the tetrapyrrole biosynthetic pathway.
Nur registrierte Benutzer können Artikel übersetzen
Einloggen Anmelden
Magnesium-protoporphyrin IX chelatase (Mg-chelatase) is located at the branchpoint of tetrapyrrole biosynthesis, at which point protoporphyrin IX is distributed for the synthesis of chlorophyll and heme. We investigated the regulatory contribution of Mg-chelatase to the flow of metabolites. In
Die vollständigste Datenbank für Heilkräuter, die von der Wissenschaft unterstützt wird
- Arbeitet in 55 Sprachen
- Von der Wissenschaft unterstützte Kräuterkuren
- Kräutererkennung durch Bild
- Interaktive GPS-Karte - Kräuter vor Ort markieren (in Kürze)
- Lesen Sie wissenschaftliche Veröffentlichungen zu Ihrer Suche
- Suchen Sie nach Heilkräutern nach ihrer Wirkung
- Organisieren Sie Ihre Interessen und bleiben Sie über Neuigkeiten, klinische Studien und Patente auf dem Laufenden
Geben Sie ein Symptom oder eine Krankheit ein und lesen Sie über Kräuter, die helfen könnten, geben Sie ein Kraut ein und sehen Sie Krankheiten und Symptome, gegen die es angewendet wird.
* Alle Informationen basieren auf veröffentlichten wissenschaftlichen Forschungsergebnissen
