PoplarV1, Main, Exploration, bibRecord, 003D27

Responses of condensed tannins in poplar roots to fertilization and gypsy moth defoliation.

Identifieur interne : 003D27 ( Main/Exploration ); précédent : 003D26; suivant : 003D28

Responses of condensed tannins in poplar roots to fertilization and gypsy moth defoliation.

Auteurs : Kevin R. Kosola [États-Unis] ; Dylan Parry ; Beth Ann A. Workmaster

Source :

Tree physiology [ 0829-318X ] ; 2006.

RBID : pubmed:17169900

Descripteurs français

KwdFr :
- Animaux (MeSH), Azote (métabolisme), Engrais (MeSH), Feuilles de plante (parasitologie), Interactions hôte-parasite (physiologie), Papillons de nuit (physiologie), Populus (métabolisme), Populus (parasitologie), Proanthocyanidines (métabolisme), Racines de plante (métabolisme).
MESH :
- métabolisme : Azote, Populus, Proanthocyanidines, Racines de plante.
- parasitologie : Feuilles de plante, Populus.
- physiologie : Interactions hôte-parasite, Papillons de nuit.
- Animaux, Engrais.

English descriptors

KwdEn :
- Animals (MeSH), Fertilizers (MeSH), Host-Parasite Interactions (physiology), Moths (physiology), Nitrogen (metabolism), Plant Leaves (parasitology), Plant Roots (metabolism), Populus (metabolism), Populus (parasitology), Proanthocyanidins (metabolism).
MESH :
- chemical , metabolism : Nitrogen, Proanthocyanidins.
- chemical : Fertilizers.
- metabolism : Plant Roots, Populus.
- parasitology : Plant Leaves, Populus.
- physiology : Host-Parasite Interactions, Moths.
- Animals.

Abstract

We examined the effects of fertilization and gypsy moth defoliation on condensed tannin concentration (%CT) of hybrid poplar (Populus x canadensis cv 'Eugeneii') fine roots in the summers of 1997 and 1998. This factorial experiment included two defoliation treatments (defoliated and a foliated control) and fertilization treatments (100 kg nitrogen (N) ha(-1) and an unfertilized control). Gypsy moth (Lymantria dispar L.) populations were experimentally increased to obtain defoliation in the summers of 1996, 1997 and 1998; fertilization subplots were supplemented with NH4NO3 (100 kg N ha(-1)) in the spring of each year. Despite the severity of defoliation, the effects were small, and significant on only two sampling dates: in May 1997, when fine root %CT was 23% lower in the defoliated trees, and in November 1997, when trees in the defoliated unfertilized plots had 35% higher root %CT than trees in all other plots. Defoliation effects on root %CT did not follow the same seasonal pattern as defoliation effects on root starch content, N uptake capacity or leaf %CT. Regulation of root condensed tannin concentration appeared to be partially uncoupled from these traits. The small transient effects on root defense reflect the resilience of this early successional tree to severe early season defoliation.

DOI: 10.1093/treephys/26.12.1607
PubMed: 17169900

Affiliations:

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Le document en format XML

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<term>Moths (physiology)</term>
<term>Nitrogen (metabolism)</term>
<term>Plant Leaves (parasitology)</term>
<term>Plant Roots (metabolism)</term>
<term>Populus (metabolism)</term>
<term>Populus (parasitology)</term>
<term>Proanthocyanidins (metabolism)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Animaux (MeSH)</term>
<term>Azote (métabolisme)</term>
<term>Engrais (MeSH)</term>
<term>Feuilles de plante (parasitologie)</term>
<term>Interactions hôte-parasite (physiologie)</term>
<term>Papillons de nuit (physiologie)</term>
<term>Populus (métabolisme)</term>
<term>Populus (parasitologie)</term>
<term>Proanthocyanidines (métabolisme)</term>
<term>Racines de plante (métabolisme)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Nitrogen</term>
<term>Proanthocyanidins</term>
</keywords>
<keywords scheme="MESH" type="chemical" xml:lang="en"><term>Fertilizers</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Roots</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Azote</term>
<term>Populus</term>
<term>Proanthocyanidines</term>
<term>Racines de plante</term>
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<keywords scheme="MESH" qualifier="parasitologie" xml:lang="fr"><term>Feuilles de plante</term>
<term>Populus</term>
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<term>Populus</term>
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<term>Papillons de nuit</term>
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<front><div type="abstract" xml:lang="en">We examined the effects of fertilization and gypsy moth defoliation on condensed tannin concentration (%CT) of hybrid poplar (Populus x canadensis cv 'Eugeneii') fine roots in the summers of 1997 and 1998. This factorial experiment included two defoliation treatments (defoliated and a foliated control) and fertilization treatments (100 kg nitrogen (N) ha(-1) and an unfertilized control). Gypsy moth (Lymantria dispar L.) populations were experimentally increased to obtain defoliation in the summers of 1996, 1997 and 1998; fertilization subplots were supplemented with NH4NO3 (100 kg N ha(-1)) in the spring of each year. Despite the severity of defoliation, the effects were small, and significant on only two sampling dates: in May 1997, when fine root %CT was 23% lower in the defoliated trees, and in November 1997, when trees in the defoliated unfertilized plots had 35% higher root %CT than trees in all other plots. Defoliation effects on root %CT did not follow the same seasonal pattern as defoliation effects on root starch content, N uptake capacity or leaf %CT. Regulation of root condensed tannin concentration appeared to be partially uncoupled from these traits. The small transient effects on root defense reflect the resilience of this early successional tree to severe early season defoliation.</div>
</front>
</TEI>
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<Month>04</Month>
<Day>12</Day>
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<Month>05</Month>
<Day>13</Day>
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<Issue>12</Issue>
<PubDate><Year>2006</Year>
<Month>Dec</Month>
</PubDate>
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<Title>Tree physiology</Title>
<ISOAbbreviation>Tree Physiol</ISOAbbreviation>
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<ArticleTitle>Responses of condensed tannins in poplar roots to fertilization and gypsy moth defoliation.</ArticleTitle>
<Pagination><MedlinePgn>1607-11</MedlinePgn>
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<Abstract><AbstractText>We examined the effects of fertilization and gypsy moth defoliation on condensed tannin concentration (%CT) of hybrid poplar (Populus x canadensis cv 'Eugeneii') fine roots in the summers of 1997 and 1998. This factorial experiment included two defoliation treatments (defoliated and a foliated control) and fertilization treatments (100 kg nitrogen (N) ha(-1) and an unfertilized control). Gypsy moth (Lymantria dispar L.) populations were experimentally increased to obtain defoliation in the summers of 1996, 1997 and 1998; fertilization subplots were supplemented with NH4NO3 (100 kg N ha(-1)) in the spring of each year. Despite the severity of defoliation, the effects were small, and significant on only two sampling dates: in May 1997, when fine root %CT was 23% lower in the defoliated trees, and in November 1997, when trees in the defoliated unfertilized plots had 35% higher root %CT than trees in all other plots. Defoliation effects on root %CT did not follow the same seasonal pattern as defoliation effects on root starch content, N uptake capacity or leaf %CT. Regulation of root condensed tannin concentration appeared to be partially uncoupled from these traits. The small transient effects on root defense reflect the resilience of this early successional tree to severe early season defoliation.</AbstractText>
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<country name="États-Unis"><region name="Michigan"><name sortKey="Kosola, Kevin R" sort="Kosola, Kevin R" uniqKey="Kosola K" first="Kevin R" last="Kosola">Kevin R. Kosola</name>
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Responses of condensed tannins in poplar roots to fertilization and gypsy moth defoliation.

Responses of condensed tannins in poplar roots to fertilization and gypsy moth defoliation.

Source :

Descripteurs français

English descriptors

Abstract

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

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki