Slovenian
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)
Plant Physiology 2001-Mar

Regulation of protein degradation and protease expression by mannose in maize root tips. Pi sequestration by mannose may hinder the study of its signaling properties.

Samo registrirani uporabniki lahko prevajajo članke
Prijava / prijava
Povezava se shrani v odložišče
R Brouquisse
A Evrard
D Rolin
P Raymond
C Roby

Ključne besede

Povzetek

The effects of mannose (Man) and glucose (Glc) on central metabolism, proteolysis, and expression of the root starvation-induced protease (RSIP; F. James, R. Brouquisse, C. Suire, A. Pradet, P. Raymond [1996] Biochem J 320: 283-292) were investigated in maize (Zea mays L. cv DEA) root tips. Changes in metabolite concentrations (sugars, ester-phosphates, adenine nucleotides, and amino acids) were monitored using in vivo and in vitro (13)C- and (31)P-NMR spectroscopy, in parallel with the changes in respiration rates, protein contents, proteolytic activities, and RSIP amounts. The inhibition of proteolysis, the decrease in proteolytic activities, and the repression of RSIP expression triggered by Man, at concentrations usually used to study sugar signaling (2 and 10 mM), were found to be related to a drop of energy metabolism, primarily due to a Man-induced Pi sequestration. However, when supplied at low concentration (2 mM) and with the adequate phosphate concentration (30 mM), energy metabolism was restored and Man repressed proteolysis similarly to Glc, when provided at the same concentration. These results indicate that Man should be used with caution as a Glc analog to study signalization by sugars in plants because possible signaling effects may be hindered by Pi sequestration.

Pridružite se naši
facebook strani

Najbolj popolna baza zdravilnih zelišč, podprta z znanostjo

  • Deluje v 55 jezikih
  • Zeliščna zdravila, podprta z znanostjo
  • Prepoznavanje zelišč po sliki
  • Interaktivni GPS zemljevid - označite zelišča na lokaciji (kmalu)
  • Preberite znanstvene publikacije, povezane z vašim iskanjem
  • Iščite zdravilna zelišča po njihovih učinkih
  • Organizirajte svoje interese in bodite na tekočem z raziskavami novic, kliničnimi preskušanji in patenti

Vnesite simptom ali bolezen in preberite o zeliščih, ki bi lahko pomagala, vnesite zelišče in si oglejte bolezni in simptome, proti katerim se uporablja.
* Vse informacije temeljijo na objavljenih znanstvenih raziskavah

Google Play badgeApp Store badge