Why the aphid Aphis spiraecola is more abundant on clementine tree than Aphis gossypii?
Identifieur interne : 000031 ( France/Analysis ); précédent : 000030; suivant : 000032Why the aphid Aphis spiraecola is more abundant on clementine tree than Aphis gossypii?
Auteurs : Houda Mostefaoui [Algérie] ; Leila Allal-Benfekih [France] ; Zahr-Eddine Djazouli [Algérie] ; Daniel Petit [France] ; Gaëlle Saladin [France]Source :
- Comptes rendus biologies [ 1768-3238 ] ; 2014.
Descripteurs français
- Wicri :
- geographic : Algérie.
English descriptors
- KwdEn :
- Algeria, Amino Acids (metabolism), Animals, Aphids (metabolism), Aphids (physiology), Carbohydrate Metabolism (physiology), Citrus sinensis (parasitology), Climate, Energy Metabolism (physiology), Lipid Metabolism (physiology), Plant Leaves (parasitology), Proline (metabolism), Regression Analysis, Seasons, Species Specificity, Tannins (metabolism).
- MESH :
- chemical , metabolism : Amino Acids, Proline, Tannins.
- geographic : Algeria.
- metabolism : Aphids.
- parasitology : Citrus sinensis, Plant Leaves.
- physiology : Aphids, Carbohydrate Metabolism, Energy Metabolism, Lipid Metabolism.
- Animals, Climate, Regression Analysis, Seasons, Species Specificity.
Abstract
Aphis spiraecola and Aphis gossypii cause harmful damages on clementine tree orchards. Weekly surveys measured the abundance of aphids (larvae, winged and wingless adults) as well as of auxiliary insects and parameters of energy metabolism. Correlatively, soluble carbohydrates, total free amino acids, free proline and condensed tannins were quantified in control and infested leaves. Both aphid species showed parallel temporal variations, but A. spiraecola was consistently more abundant regardless of the stage. Amino acids had a positive effect on both aphid species abundance, but neither condensed tannins nor auxiliary insects seemed to modulate aphid populations. Interestingly, the leaf carbohydrate content was positively correlated with the abundance of A. spiraecola, but not with that of A. gossypii. Moreover, A. gossypii's abundance was significantly down-regulated by high proline concentrations. Thus, the higher abundance of A. spiraecola could be explained by a better tolerance to high proline contents and a better conversion of foliar energy metabolites.
DOI: 10.1016/j.crvi.2013.11.008
PubMed: 24581807
Affiliations:
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pubmed:24581807Le document en format XML
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Weekly surveys measured the abundance of aphids (larvae, winged and wingless adults) as well as of auxiliary insects and parameters of energy metabolism. Correlatively, soluble carbohydrates, total free amino acids, free proline and condensed tannins were quantified in control and infested leaves. Both aphid species showed parallel temporal variations, but A. spiraecola was consistently more abundant regardless of the stage. Amino acids had a positive effect on both aphid species abundance, but neither condensed tannins nor auxiliary insects seemed to modulate aphid populations. Interestingly, the leaf carbohydrate content was positively correlated with the abundance of A. spiraecola, but not with that of A. gossypii. Moreover, A. gossypii's abundance was significantly down-regulated by high proline concentrations. Thus, the higher abundance of A. spiraecola could be explained by a better tolerance to high proline contents and a better conversion of foliar energy metabolites.</div></front></TEI><affiliations><list><country><li>Algérie</li><li>France</li></country><region><li>Limousin</li><li>Nouvelle-Aquitaine</li></region><settlement><li>Limoges</li></settlement><orgName><li>Université de Limoges</li></orgName></list><tree><country name="Algérie"><noRegion><name sortKey="Mostefaoui, Houda" sort="Mostefaoui, Houda" uniqKey="Mostefaoui H" first="Houda" last="Mostefaoui">Houda Mostefaoui</name></noRegion><name sortKey="Djazouli, Zahr Eddine" sort="Djazouli, Zahr Eddine" uniqKey="Djazouli Z" first="Zahr-Eddine" last="Djazouli">Zahr-Eddine Djazouli</name></country><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Allal Benfekih, Leila" sort="Allal Benfekih, Leila" uniqKey="Allal Benfekih L" first="Leila" last="Allal-Benfekih">Leila Allal-Benfekih</name></region><name sortKey="Petit, Daniel" sort="Petit, Daniel" uniqKey="Petit D" first="Daniel" last="Petit">Daniel Petit</name><name sortKey="Saladin, Gaelle" sort="Saladin, Gaelle" uniqKey="Saladin G" first="Gaëlle" last="Saladin">Gaëlle Saladin</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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