PoplarV1, Main, Exploration, bibRecord, 000C33

The occurrence and formation of monoterpenes in herbivore-damaged poplar roots.

Identifieur interne : 000C33 ( Main/Exploration ); précédent : 000C32; suivant : 000C34

The occurrence and formation of monoterpenes in herbivore-damaged poplar roots.

Auteurs : Nathalie D. Lackus [Allemagne] ; Sandra Lackner [Allemagne] ; Jonathan Gershenzon [Allemagne] ; Sybille B. Unsicker [Allemagne] ; Tobias G. Köllner [Allemagne]

Source :

Scientific reports [ 2045-2322 ] ; 2018.

RBID : pubmed:30560919

Descripteurs français

KwdFr :
- Alkyl et aryl transferases (composition chimique), Alkyl et aryl transferases (génétique), Alkyl et aryl transferases (métabolisme), Animaux (MeSH), Coléoptères (pathogénicité), Domaine catalytique (MeSH), Extraits de plantes (analyse), Extraits de plantes (pharmacologie), Herbivorie (MeSH), Maladies des plantes (microbiologie), Maladies des plantes (prévention et contrôle), Monoterpènes (analyse), Monoterpènes (pharmacologie), Phytophthora (effets des médicaments et des substances chimiques), Populus (composition chimique), Populus (métabolisme), Populus (parasitologie), Protéines végétales (composition chimique), Protéines végétales (génétique), Protéines végétales (métabolisme), Racines de plante (composition chimique), Racines de plante (métabolisme), Racines de plante (parasitologie), Régulation de l'expression des gènes végétaux (MeSH).
MESH :
- analyse : Extraits de plantes, Monoterpènes.
- composition chimique : Alkyl et aryl transferases, Populus, Protéines végétales, Racines de plante.
- effets des médicaments et des substances chimiques : Phytophthora.
- génétique : Alkyl et aryl transferases, Protéines végétales.
- microbiologie : Maladies des plantes.
- métabolisme : Alkyl et aryl transferases, Populus, Protéines végétales, Racines de plante.
- parasitologie : Populus, Racines de plante.
- pathogénicité : Coléoptères.
- pharmacologie : Extraits de plantes, Monoterpènes.
- prévention et contrôle : Maladies des plantes.
- Animaux, Domaine catalytique, Herbivorie, Régulation de l'expression des gènes végétaux.

English descriptors

KwdEn :
- Alkyl and Aryl Transferases (chemistry), Alkyl and Aryl Transferases (genetics), Alkyl and Aryl Transferases (metabolism), Animals (MeSH), Catalytic Domain (MeSH), Coleoptera (pathogenicity), Gene Expression Regulation, Plant (MeSH), Herbivory (MeSH), Monoterpenes (analysis), Monoterpenes (pharmacology), Phytophthora (drug effects), Plant Diseases (microbiology), Plant Diseases (prevention & control), Plant Extracts (analysis), Plant Extracts (pharmacology), Plant Proteins (chemistry), Plant Proteins (genetics), Plant Proteins (metabolism), Plant Roots (chemistry), Plant Roots (metabolism), Plant Roots (parasitology), Populus (chemistry), Populus (metabolism), Populus (parasitology).
MESH :
- chemical , analysis : Monoterpenes, Plant Extracts.
- chemical , chemistry : Alkyl and Aryl Transferases, Plant Proteins.
- chemical , genetics : Alkyl and Aryl Transferases, Plant Proteins.
- chemical , metabolism : Alkyl and Aryl Transferases, Plant Proteins.
- chemistry : Plant Roots, Populus.
- drug effects : Phytophthora.
- metabolism : Plant Roots, Populus.
- microbiology : Plant Diseases.
- parasitology : Plant Roots, Populus.
- pathogenicity : Coleoptera.
- chemical , pharmacology : Monoterpenes, Plant Extracts.
- prevention & control : Plant Diseases.
- Animals, Catalytic Domain, Gene Expression Regulation, Plant, Herbivory.

Abstract

Volatiles are often released upon herbivory as plant defense compounds. While the formation of volatiles above-ground has been intensively studied, little is known about herbivore-induced root volatiles. Here, we show that cockchafer larvae-damaged roots of Populus trichocarpa and P. nigra release a mixture of monoterpenes, including (-)-α-pinene, (-)-camphene, (-)-β-pinene, p-cymene, and 1,8-cineole. Three terpene synthases, PtTPS16 and PtTPS21 from P. trichocarpa and PnTPS4 from P. nigra, could be identified and characterized in vitro. PnTPS4 was found to produce 1,8-cineole as sole product. PtTPS16 and PtTPS21, although highly similar to each other, showed different product specificities and produced γ-terpinene and a mixture of (-)-camphene, (-)-α-pinene, (-)-β-pinene, and (-)-limonene, respectively. Four active site residues were found to determine the different product specificities of the two enzymes. The expression profiles of PtTPS16, PtTPS21, and PnTPS4 in undamaged and herbivore-damaged poplar roots generally matched the emission pattern of monoterpenes, indicating that monoterpene emission in roots is mainly determined at the gene transcript level. Bioassays with Phytophtora cactorum (Oomycetes) revealed inhibitory effects of vapor-phase 1,8-cineole and (-)-β-pinene on the growth of this important plant pathogen. Thus herbivore-induced volatile monoterpenes may have a role in defense against pathogens that cause secondary infections after root wounding.

DOI: 10.1038/s41598-018-36302-6
PubMed: 30560919
PubMed Central: PMC6299004

Affiliations:

Allemagne

Links toward previous steps (curation, corpus...)

to stream Main, to step Corpus: 000B21
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Le document en format XML

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<term>Alkyl and Aryl Transferases (metabolism)</term>
<term>Animals (MeSH)</term>
<term>Catalytic Domain (MeSH)</term>
<term>Coleoptera (pathogenicity)</term>
<term>Gene Expression Regulation, Plant (MeSH)</term>
<term>Herbivory (MeSH)</term>
<term>Monoterpenes (analysis)</term>
<term>Monoterpenes (pharmacology)</term>
<term>Phytophthora (drug effects)</term>
<term>Plant Diseases (microbiology)</term>
<term>Plant Diseases (prevention & control)</term>
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<term>Plant Roots (metabolism)</term>
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<term>Animaux (MeSH)</term>
<term>Coléoptères (pathogénicité)</term>
<term>Domaine catalytique (MeSH)</term>
<term>Extraits de plantes (analyse)</term>
<term>Extraits de plantes (pharmacologie)</term>
<term>Herbivorie (MeSH)</term>
<term>Maladies des plantes (microbiologie)</term>
<term>Maladies des plantes (prévention et contrôle)</term>
<term>Monoterpènes (analyse)</term>
<term>Monoterpènes (pharmacologie)</term>
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<term>Protéines végétales (métabolisme)</term>
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<term>Racines de plante (métabolisme)</term>
<term>Racines de plante (parasitologie)</term>
<term>Régulation de l'expression des gènes végétaux (MeSH)</term>
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<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Monoterpenes</term>
<term>Plant Extracts</term>
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<term>Protéines végétales</term>
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<front><div type="abstract" xml:lang="en">Volatiles are often released upon herbivory as plant defense compounds. While the formation of volatiles above-ground has been intensively studied, little is known about herbivore-induced root volatiles. Here, we show that cockchafer larvae-damaged roots of Populus trichocarpa and P. nigra release a mixture of monoterpenes, including (-)-α-pinene, (-)-camphene, (-)-β-pinene, p-cymene, and 1,8-cineole. Three terpene synthases, PtTPS16 and PtTPS21 from P. trichocarpa and PnTPS4 from P. nigra, could be identified and characterized in vitro. PnTPS4 was found to produce 1,8-cineole as sole product. PtTPS16 and PtTPS21, although highly similar to each other, showed different product specificities and produced γ-terpinene and a mixture of (-)-camphene, (-)-α-pinene, (-)-β-pinene, and (-)-limonene, respectively. Four active site residues were found to determine the different product specificities of the two enzymes. The expression profiles of PtTPS16, PtTPS21, and PnTPS4 in undamaged and herbivore-damaged poplar roots generally matched the emission pattern of monoterpenes, indicating that monoterpene emission in roots is mainly determined at the gene transcript level. Bioassays with Phytophtora cactorum (Oomycetes) revealed inhibitory effects of vapor-phase 1,8-cineole and (-)-β-pinene on the growth of this important plant pathogen. Thus herbivore-induced volatile monoterpenes may have a role in defense against pathogens that cause secondary infections after root wounding.</div>
</front>
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<Month>10</Month>
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<ArticleTitle>The occurrence and formation of monoterpenes in herbivore-damaged poplar roots.</ArticleTitle>
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<Abstract><AbstractText>Volatiles are often released upon herbivory as plant defense compounds. While the formation of volatiles above-ground has been intensively studied, little is known about herbivore-induced root volatiles. Here, we show that cockchafer larvae-damaged roots of Populus trichocarpa and P. nigra release a mixture of monoterpenes, including (-)-α-pinene, (-)-camphene, (-)-β-pinene, p-cymene, and 1,8-cineole. Three terpene synthases, PtTPS16 and PtTPS21 from P. trichocarpa and PnTPS4 from P. nigra, could be identified and characterized in vitro. PnTPS4 was found to produce 1,8-cineole as sole product. PtTPS16 and PtTPS21, although highly similar to each other, showed different product specificities and produced γ-terpinene and a mixture of (-)-camphene, (-)-α-pinene, (-)-β-pinene, and (-)-limonene, respectively. Four active site residues were found to determine the different product specificities of the two enzymes. The expression profiles of PtTPS16, PtTPS21, and PnTPS4 in undamaged and herbivore-damaged poplar roots generally matched the emission pattern of monoterpenes, indicating that monoterpene emission in roots is mainly determined at the gene transcript level. Bioassays with Phytophtora cactorum (Oomycetes) revealed inhibitory effects of vapor-phase 1,8-cineole and (-)-β-pinene on the growth of this important plant pathogen. Thus herbivore-induced volatile monoterpenes may have a role in defense against pathogens that cause secondary infections after root wounding.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Lackus</LastName>
<ForeName>Nathalie D</ForeName>
<Initials>ND</Initials>
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<Author ValidYN="Y"><LastName>Lackner</LastName>
<ForeName>Sandra</ForeName>
<Initials>S</Initials>
<AffiliationInfo><Affiliation>Max Planck Institute for Chemical Ecology, Department of Biochemistry, Hans-Knöll-Strasse 8, 07745, Jena, Germany.</Affiliation>
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<Author ValidYN="Y"><LastName>Gershenzon</LastName>
<ForeName>Jonathan</ForeName>
<Initials>J</Initials>
<AffiliationInfo><Affiliation>Max Planck Institute for Chemical Ecology, Department of Biochemistry, Hans-Knöll-Strasse 8, 07745, Jena, Germany.</Affiliation>
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<Author ValidYN="Y"><LastName>Unsicker</LastName>
<ForeName>Sybille B</ForeName>
<Initials>SB</Initials>
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The occurrence and formation of monoterpenes in herbivore-damaged poplar roots.

The occurrence and formation of monoterpenes in herbivore-damaged poplar roots.

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