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Water stress induces changes in polyphenol profile and antioxidant capacity in poplar plants (Populus spp.).

Identifieur interne : 001601 ( Main/Exploration ); précédent : 001600; suivant : 001602

Water stress induces changes in polyphenol profile and antioxidant capacity in poplar plants (Populus spp.).

Auteurs : B M Popovi [Serbie] ; D. Štajner [Serbie] ; R. Ždero-Pavlovi [Serbie] ; V. Tumbas-Šaponjac [Serbie] ; J. Anadanovi Brunet [Serbie] ; S. Orlovi [Serbie]

Source :

RBID : pubmed:27116372

Descripteurs français

English descriptors

Abstract

This paper is aimed to characterize young poplar plants under the influence of water stress provoked by polyethileneglycol 6000 (PEG 6000). Three polar genotypes (M1, B229, and PE19/66) were grown in hydroponics and subjected to 100 and 200 mOsm PEG 6000 during six days. Polyphenol characterization, two enzymatic markers and antioxidant capacity in leaves and roots were investigated in stressed plants. Total phenol content, ferric reducing antioxidant capacity (FRAP) and DPPH antiradical power (DPPH ARP) were determined for estimating total antioxidant capacity. Polyphenol oxidase (PPO) and phenylalanine ammonia lyase (PAL) were determined as enzymatic markers. Polyphenol characterization of poplar samples was performed by HPLC-PDA analysis. All results were subjected to correlation analysis and principal component analysis (PCA). Inspite of the decrease of total phenol content in investigated genotypes, as well as total antioxidant capacity, some of polyphenols were affected by stress like flavonoids chrysin, myricetine, kaempferol and isoferulic acid in roots of B229 genotype (Populus deltoides). Genotype B229 also showed the increase of antioxidant capacity and PAL activity in root and leaves under stress what could be the indicator of the adaptability of poplar plants to water stress. Significant positive correlations were obtained between PAL, antioxidant capacity as well as phenolic acids among themselves. Chemometric evaluation showed close interdependence between flavonoids, FRAP, DPPH antiradical power and both investigated enzymes of polyphenol metabolism, PAL and PPO.

DOI: 10.1016/j.plaphy.2016.04.036
PubMed: 27116372


Affiliations:


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Le document en format XML

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<div type="abstract" xml:lang="en">This paper is aimed to characterize young poplar plants under the influence of water stress provoked by polyethileneglycol 6000 (PEG 6000). Three polar genotypes (M1, B229, and PE19/66) were grown in hydroponics and subjected to 100 and 200 mOsm PEG 6000 during six days. Polyphenol characterization, two enzymatic markers and antioxidant capacity in leaves and roots were investigated in stressed plants. Total phenol content, ferric reducing antioxidant capacity (FRAP) and DPPH antiradical power (DPPH ARP) were determined for estimating total antioxidant capacity. Polyphenol oxidase (PPO) and phenylalanine ammonia lyase (PAL) were determined as enzymatic markers. Polyphenol characterization of poplar samples was performed by HPLC-PDA analysis. All results were subjected to correlation analysis and principal component analysis (PCA). Inspite of the decrease of total phenol content in investigated genotypes, as well as total antioxidant capacity, some of polyphenols were affected by stress like flavonoids chrysin, myricetine, kaempferol and isoferulic acid in roots of B229 genotype (Populus deltoides). Genotype B229 also showed the increase of antioxidant capacity and PAL activity in root and leaves under stress what could be the indicator of the adaptability of poplar plants to water stress. Significant positive correlations were obtained between PAL, antioxidant capacity as well as phenolic acids among themselves. Chemometric evaluation showed close interdependence between flavonoids, FRAP, DPPH antiradical power and both investigated enzymes of polyphenol metabolism, PAL and PPO. </div>
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<DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName>
<QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName>
<QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D025341" MajorTopicYN="N">Principal Component Analysis</DescriptorName>
</MeshHeading>
</MeshHeadingList>
<KeywordList Owner="NOTNLM">
<Keyword MajorTopicYN="N">Antioxidant</Keyword>
<Keyword MajorTopicYN="N">PCA</Keyword>
<Keyword MajorTopicYN="N">Polyphenol</Keyword>
<Keyword MajorTopicYN="N">Poplar</Keyword>
<Keyword MajorTopicYN="N">Water stress</Keyword>
</KeywordList>
</MedlineCitation>
<PubmedData>
<History>
<PubMedPubDate PubStatus="received">
<Year>2016</Year>
<Month>03</Month>
<Day>24</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="revised">
<Year>2016</Year>
<Month>04</Month>
<Day>18</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="accepted">
<Year>2016</Year>
<Month>04</Month>
<Day>19</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="entrez">
<Year>2016</Year>
<Month>4</Month>
<Day>27</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed">
<Year>2016</Year>
<Month>4</Month>
<Day>27</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline">
<Year>2017</Year>
<Month>3</Month>
<Day>21</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList>
<ArticleId IdType="pubmed">27116372</ArticleId>
<ArticleId IdType="pii">S0981-9428(16)30151-6</ArticleId>
<ArticleId IdType="doi">10.1016/j.plaphy.2016.04.036</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
<affiliations>
<list>
<country>
<li>Serbie</li>
</country>
</list>
<tree>
<country name="Serbie">
<noRegion>
<name sortKey="Popovi, B M" sort="Popovi, B M" uniqKey="Popovi B" first="B M" last="Popovi">B M Popovi</name>
</noRegion>
<name sortKey=" Anadanovi Brunet, J" sort=" Anadanovi Brunet, J" uniqKey=" Anadanovi Brunet J" first="J" last=" Anadanovi Brunet">J. Anadanovi Brunet</name>
<name sortKey="Orlovi, S" sort="Orlovi, S" uniqKey="Orlovi S" first="S" last="Orlovi">S. Orlovi</name>
<name sortKey="Stajner, D" sort="Stajner, D" uniqKey="Stajner D" first="D" last="Štajner">D. Štajner</name>
<name sortKey="Tumbas Aponjac, V" sort="Tumbas Aponjac, V" uniqKey="Tumbas Aponjac V" first="V" last="Tumbas-Šaponjac">V. Tumbas-Šaponjac</name>
<name sortKey="Zdero Pavlovi, R" sort="Zdero Pavlovi, R" uniqKey="Zdero Pavlovi R" first="R" last="Ždero-Pavlovi">R. Ždero-Pavlovi</name>
</country>
</tree>
</affiliations>
</record>

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