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Interaction between abscisic acid and nitric oxide in PB90-induced catharanthine biosynthesis of catharanthus roseus cell suspension cultures.

Identifieur interne : 001301 ( Main/Corpus ); précédent : 001300; suivant : 001302

Interaction between abscisic acid and nitric oxide in PB90-induced catharanthine biosynthesis of catharanthus roseus cell suspension cultures.

Auteurs : Qian Chen ; Zunwei Chen ; Li Lu ; Haihong Jin ; Lina Sun ; Qin Yu ; Hongke Xu ; Fengxia Yang ; Mengna Fu ; Shengchao Li ; Huizhong Wang ; Maojun Xu

Source :

RBID : pubmed:23554409

English descriptors

Abstract

Elicitations are considered to be an important strategy to improve production of secondary metabolites of plant cell cultures. However, mechanisms responsible for the elicitor-induced production of secondary metabolites of plant cells have not yet been fully elucidated. Here, we report that treatment of Catharanthus roseus cell suspension cultures with PB90, a protein elicitor from Phytophthora boehmeriae, induced rapid increases of abscisic acid (ABA) and nitric oxide (NO), subsequently followed by the enhancement of catharanthine production and up-regulation of Str and Tdc, two important genes in catharanthine biosynthesis. PB90-induced catharanthine production and the gene expression were suppressed by the ABA inhibitor and NO scavenger respectively, showing that ABA and NO are essential for the elicitor-induced catharanthine biosynthesis. The relationship between ABA and NO in mediating catharanthine biosynthesis was further investigated. Treatment of the cells with ABA triggered NO accumulation and induced catharanthine production and up-regulation of Str and Tdc. ABA-induced catharanthine production and gene expressions were suppressed by the NO scavenger. Conversely, exogenous application of NO did not stimulate ABA generation and treatment with ABA inhibitor did not suppress NO-induced catharanthine production and gene expressions. Together, the results showed that both NO and ABA were involved in PB90-induced catharanthine biosynthesis of C. roseus cells. Furthermore, our data demonstrated that ABA acted upstream of NO in the signaling cascade leading to PB90-induced catharanthine biosynthesis of C. roseus cells.

DOI: 10.1002/btpr.1738
PubMed: 23554409

Links to Exploration step

pubmed:23554409

Le document en format XML

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<name sortKey="Fu, Mengna" sort="Fu, Mengna" uniqKey="Fu M" first="Mengna" last="Fu">Mengna Fu</name>
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<term>Abscisic Acid (metabolism)</term>
<term>Catharanthus (cytology)</term>
<term>Catharanthus (metabolism)</term>
<term>Cell Culture Techniques (MeSH)</term>
<term>Cells, Cultured (MeSH)</term>
<term>Fungal Proteins (metabolism)</term>
<term>Nitric Oxide (chemistry)</term>
<term>Nitric Oxide (metabolism)</term>
<term>Phytophthora (chemistry)</term>
<term>Suspensions (chemistry)</term>
<term>Suspensions (metabolism)</term>
<term>Vinca Alkaloids (analysis)</term>
<term>Vinca Alkaloids (biosynthesis)</term>
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<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en">
<term>Vinca Alkaloids</term>
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<keywords scheme="MESH" type="chemical" qualifier="biosynthesis" xml:lang="en">
<term>Vinca Alkaloids</term>
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<term>Abscisic Acid</term>
<term>Nitric Oxide</term>
<term>Suspensions</term>
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<term>Phytophthora</term>
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<term>Catharanthus</term>
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<div type="abstract" xml:lang="en">Elicitations are considered to be an important strategy to improve production of secondary metabolites of plant cell cultures. However, mechanisms responsible for the elicitor-induced production of secondary metabolites of plant cells have not yet been fully elucidated. Here, we report that treatment of Catharanthus roseus cell suspension cultures with PB90, a protein elicitor from Phytophthora boehmeriae, induced rapid increases of abscisic acid (ABA) and nitric oxide (NO), subsequently followed by the enhancement of catharanthine production and up-regulation of Str and Tdc, two important genes in catharanthine biosynthesis. PB90-induced catharanthine production and the gene expression were suppressed by the ABA inhibitor and NO scavenger respectively, showing that ABA and NO are essential for the elicitor-induced catharanthine biosynthesis. The relationship between ABA and NO in mediating catharanthine biosynthesis was further investigated. Treatment of the cells with ABA triggered NO accumulation and induced catharanthine production and up-regulation of Str and Tdc. ABA-induced catharanthine production and gene expressions were suppressed by the NO scavenger. Conversely, exogenous application of NO did not stimulate ABA generation and treatment with ABA inhibitor did not suppress NO-induced catharanthine production and gene expressions. Together, the results showed that both NO and ABA were involved in PB90-induced catharanthine biosynthesis of C. roseus cells. Furthermore, our data demonstrated that ABA acted upstream of NO in the signaling cascade leading to PB90-induced catharanthine biosynthesis of C. roseus cells.</div>
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<AbstractText>Elicitations are considered to be an important strategy to improve production of secondary metabolites of plant cell cultures. However, mechanisms responsible for the elicitor-induced production of secondary metabolites of plant cells have not yet been fully elucidated. Here, we report that treatment of Catharanthus roseus cell suspension cultures with PB90, a protein elicitor from Phytophthora boehmeriae, induced rapid increases of abscisic acid (ABA) and nitric oxide (NO), subsequently followed by the enhancement of catharanthine production and up-regulation of Str and Tdc, two important genes in catharanthine biosynthesis. PB90-induced catharanthine production and the gene expression were suppressed by the ABA inhibitor and NO scavenger respectively, showing that ABA and NO are essential for the elicitor-induced catharanthine biosynthesis. The relationship between ABA and NO in mediating catharanthine biosynthesis was further investigated. Treatment of the cells with ABA triggered NO accumulation and induced catharanthine production and up-regulation of Str and Tdc. ABA-induced catharanthine production and gene expressions were suppressed by the NO scavenger. Conversely, exogenous application of NO did not stimulate ABA generation and treatment with ABA inhibitor did not suppress NO-induced catharanthine production and gene expressions. Together, the results showed that both NO and ABA were involved in PB90-induced catharanthine biosynthesis of C. roseus cells. Furthermore, our data demonstrated that ABA acted upstream of NO in the signaling cascade leading to PB90-induced catharanthine biosynthesis of C. roseus cells.</AbstractText>
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