Influence of mycorrhizal fungi on growth and cadmium adsorption in sunflower (Helianthus annuus L.)
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| Autores: | , , |
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| Formato: | artículo original |
| Estado: | Versión publicada |
| Fecha de Publicación: | 2024 |
| Descripción: | Introduction. Heavy metals can accumulate in the soil and affect plant growth. The symbiosis established between plants and arbuscular mycorrhiza-forming fungi (AMF) improves the tolerance of plants to heavy metal toxicity, being considered an alternative for the management of plants grown in soils affected by heavy metals. Objective.To evaluate the effect of different arbuscular mycorrhizal-forming fungi on cadmium absorption and vegetative growth of sunflower (Helianthus annuus L.). Materials and methods. The research was carried out in the years 2021-2023, at the National Institute of Agricultural Sciences (INCA), San José de las Lajas, Mayabeque, Cuba. Sunflower seeds were inoculated with the strains INCAM-4 (Glomus cubense) and INCAM-11 (Rhizoglomus intraradices), at a rate of 45 spores/g, in a soil with high levels of Cd. After 60 days, the plant height, dry weight, chlorophyll content, percentage of mycorrhization and viability of fungal structures and the effect of AMF on cadmium partitioning in sunflower plants. Results. Sunflower plants showed a beneficial response to inoculation with strains of arbuscular mycorrhizal fungi, with a differentiated behavior between the strains and with the greatest effects obtained in growth, biomass production and in the phytoextraction process with the INCAM- strain. 11, by increasing the concentration of metal in the plants to 8.01 mg kg-1 and an infection percentage of 60% and visual density 5.01. Conclusions. Arbuscular mycorrhizae increased cadmium absorption and vegetative growth of sunflower. |
| País: | Portal de Revistas UCR |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Lenguaje: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/57500 |
| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/agromeso/article/view/57500 |
| Palabra clave: | pollution phytoremediation heavy metals natural products contaminación fitorremediación metales pesados productos naturales |