Mirande-Ney Cathleen, Tcherkez Guillaume, Gilard Françoise, Ghashghaie Jaleh, Lamade Emmanuelle. 2019. Effects of potassium fertilization on oil palm fruit metabolism and mesocarp lipid accumulation. Journal of Agricultural and Food Chemistry, 67:33 : 9432-9440.
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Version publiée
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Quartile : Outlier, Sujet : AGRICULTURE, MULTIDISCIPLINARY / Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY / Quartile : Q1, Sujet : CHEMISTRY, APPLIED
Résumé : Potassium fertilization is commonly practiced in oil palm (Elaeis guineensis) plantations to increase yield. However, its effects on fruit oil content and composition are not well documented. Here, we conducted bunch, metabolomics, and oil composition analyses in two contrasting crosses (Deli × La Mé and Deli × Yangambi) grown under different K fertilization conditions. K availability impacted bunch oil content, resulting in lower water content and higher oil proportion in fruit mesocarp, in Deli × La Mé only, thus showing differential responses of crosses to K. Oil composition at maturity did not significantly change under low K conditions despite clear alterations in fruit metabolism associated with lipid production during maturation, demonstrating the resilience of oil biosynthetic metabolism. However, the analysis of variance in oil content (across K treatments and crosses) demonstrates that sugar availability, lipid synthesis rates, and metabolic recycling are all important in determining the oil content.
Mots-clés Agrovoc : Elaeis guineensis, fertilisation, potassium, mésocarpe, métabolisme des lipides, métabolite, métabolomique
Mots-clés géographiques Agrovoc : Indonésie
Mots-clés libres : Oil palm, Potassium, Metabolomics, Oil, Fruit, Mesocarp
Classification Agris : F04 - Fertilisation
F60 - Physiologie et biochimie végétale
Champ stratégique Cirad : CTS 2 (2019-) - Transitions agroécologiques
Auteurs et affiliations
- Mirande-Ney Cathleen, CIRAD-PERSYST-UPR Systèmes de pérennes (FRA) - auteur correspondant
- Tcherkez Guillaume, ANU (AUS)
- Gilard Françoise, Université Paris-Sud (FRA)
- Ghashghaie Jaleh, CNRS (FRA)
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Lamade Emmanuelle, CIRAD-PERSYST-UPR Systèmes de pérennes (FRA)
ORCID: 0000-0002-4909-0997
Source : Cirad-Agritrop (https://agritrop.cirad.fr/594009/)
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