Inoculated Seed Endophytes Modify the Poplar Responses to Trace Elements in Polluted Soil
| Autor: | Luca Sebastiani, Francesca Vannucchi, Sofie Thijs, Svetoslav Staykov, Valeria Imperato, Anabel Saran, Jan D'Haen, Jaco Vangronsveld |
|---|---|
| Přispěvatelé: | Saran, Anabel/0000-0002-4008-7759 |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
plant growth promotion
Bioaugmentation METHYLOBACTERIUM SP. CP3 cadmium Kineococcus endophyticus CP19 Methylobacterium sp CP3 plant Endophyte purl.org/becyt/ford/1 [https] CADMIUM ZINC purl.org/becyt/ford/1.5 [https] Kineococcus Cultivar POPULUS Plant growth pro-motion Methylobacterium sp. CP3 biology PLANT GROWTH PRO-MOTION Abiotic stress Chemistry Inoculation fungi food and beverages Agriculture biology.organism_classification Zinc Horticulture Populus Cadmium Bioaccumulation Shoot bacteria KINEOCOCCUS ENDOPHYTICUS CP19 Agronomy and Crop Science growth promotion zinc |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET Agronomy, Vol 11, Iss 1987, p 1987 (2021) Agronomy Volume 11 Issue 10 |
| Popis: | Seed endophyte inoculation can enhance the plant tolerance to pollutants, which allows plant cultivation on trace element (TE) polluted soils. Methylobacterium sp. CP3 and Kineococcus en-dophyticus CP19 were tested in vitro for their tolerance to Zn and Cd and their plant growth promotion traits. The in vivo effects of bioaugmentation with individual strains or both strains were tested using two poplar cultivars, Populus deltoides x (P. trichocarpa x P. maximowiczii) ‘Dender’ and ‘Marke’, grown in TE polluted soil for six weeks. Methylobacterium sp. was found to grow on media enriched with 0.4 and 0.8 mM Cd, and both endophytes tolerated 0.6 and 1 mM Zn, due to the presence of genes involved in Zn and Cd tolerance and transport. Methylobacterium sp. showed an extracellular ion sequestration mechanism. Production of indole-3-acetic acid by Methylobacterium sp. and K. en-dophyticus, as well as phosphorus solubilization by Methylobacterium sp. were observed. Bioaugmen-tation with both endophytes increased the shoot length of Populus ‘Marke’ and enhanced the Mg uptake in both cultivars. Inoculation with Methylobacterium sp. reduced the bioaccumulation of Zn in ‘Marke’, conferring it an excluder strategy. Methylobacterium sp. and K. endophyticus seemed to improve the plant nutritional status, which can alleviate abiotic stress. Fil: Vannucchi, Francesca. Scuola Superiore Sant’Anna; Italia Fil: Imperato, Valeria. Hasselt University; Bélgica Fil: Saran, Anabel. Hasselt University; Bélgica. Instituto Nacional de Tecnología Agropecuaria. Centro Regional La Pampa-San Luis. Estación Experimental Agropecuaria Anguil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina Fil: Staykov, Svetoslav. Hasselt University; Bélgica Fil: D'Haen, Jan. Hasselt University; Bélgica Fil: Sebastiani, Luca. Scuola Superiore Sant’Anna; Italia Fil: Vangronsveld, Jaco. Hasselt University; Bélgica. Maria Curie-Skłodowska University; Polonia Fil: Thijs, Sofie. Hasselt University; Bélgica |
| Databáze: | OpenAIRE |
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