Effects of Potassium Fertilization on Oil Palm Fruit Metabolism and Mesocarp Lipid Accumulation
| Autor: | Françoise Gilard, Jaleh Ghashghaie, Guillaume Tcherkez, Cathleen Mirande-Ney, Emmanuelle Lamade |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
F60 - Physiologie et biochimie végétale Potassium Métabolite chemistry.chemical_element Arecaceae Palm Oil Biology Elaeis guineensis 01 natural sciences Fertilisation Human fertilization Fertilizers Sugar Water content Métabolisme des lipides 010401 analytical chemistry Lipid metabolism General Chemistry Lipid Metabolism biology.organism_classification Lipids 0104 chemical sciences Horticulture chemistry Fruit Composition (visual arts) Mésocarpe General Agricultural and Biological Sciences F04 - Fertilisation 010606 plant biology & botany |
| Zdroj: | Journal of Agricultural and Food Chemistry |
| ISSN: | 1520-5118 0021-8561 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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