Belarusian
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)
PLoS ONE 2020-Jul

Functional characterization of a new terpene synthase from Plectranthus amboinicus

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі
Увайсці / Зарэгістравацца
Спасылка захоўваецца ў буферы абмену
Nur Ashaari
Mohd Rahim
Suriana Sabri
Kok Lai
Adelene Song
Raha Rahim
Wan Abdullah
Janna Abdullah

Ключавыя словы

Рэферат

Plectranthus amboinicus (Lour.) Spreng is an aromatic medicinal herb known for its therapeutic and nutritional properties attributed by the presence of monoterpene and sesquiterpene compounds. Up until now, research on terpenoid biosynthesis has focused on a few mint species with economic importance such as thyme and oregano, yet the terpene synthases responsible for monoterpene production in P. amboinicus have not been described. Here we report the isolation, heterologous expression and functional characterization of a terpene synthase involved in P. amboinicus terpenoid biosynthesis. A putative monoterpene synthase gene (PamTps1) from P. amboinicus was isolated with an open reading frame of 1797 bp encoding a predicted protein of 598 amino acids with molecular weight of 69.6 kDa. PamTps1 shares 60-70% amino acid sequence similarity with other known terpene synthases of Lamiaceae. The in vitro enzymatic activity of PamTps1 demonstrated the conversion of geranyl pyrophosphate and farnesyl pyrophosphate exclusively into linalool and nerolidol, respectively, and thus PamTps1 was classified as a linalool/nerolidol synthase. In vivo activity of PamTps1 in a recombinant Escherichia coli strain revealed production of linalool and nerolidol which correlated with its in vitro activity. This outcome validated the multi-substrate usage of this enzyme in producing linalool and nerolidol both in in vivo and in vitro systems. The transcript level of PamTps1 was prominent in the leaf during daytime as compared to the stem. Gas chromatography-mass spectrometry (GC-MS) and quantitative real-time PCR analyses showed that maximal linalool level was released during the daytime and lower at night following a diurnal circadian pattern which correlated with the PamTps1 expression pattern. The PamTps1 cloned herein provides a molecular basis for the terpenoid biosynthesis in this local herb that could be exploited for valuable production using metabolic engineering in both microbial and plant systems.

Далучайцеся да нашай
старонкі ў facebook

Самая поўная база дадзеных пра лекавыя травы, падтрыманая навукай

  • Працуе на 55 мовах
  • Лячэнне травой пры падтрымцы навукі
  • Распазнаванне траў па малюнку
  • Інтэрактыўная GPS-карта - пазначце травы па месцы (хутка)
  • Чытайце навуковыя публікацыі, звязаныя з вашым пошукам
  • Шукайце лекавыя зёлкі па іх уздзеянні
  • Арганізуйце свае інтарэсы і будзьце ў курсе навінавых даследаванняў, клінічных выпрабаванняў і патэнтаў

Увядзіце сімптом альбо захворванне і прачытайце пра зёлкі, якія могуць дапамагчы, набярыце траву і паглядзіце хваробы і сімптомы, супраць якіх яна выкарыстоўваецца.
* Уся інфармацыя заснавана на апублікаваных навуковых даследаваннях

Google Play badgeApp Store badge