Unveiling the hidden interaction between thermophiles and plant crops: wheat and soil thermophilic bacteria
| Autor: | Margarida M. Santana, Luís Carvalho, Juliana Melo, Maria Eduarda Araújo, Cristina Cruz |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Journal of Plant Interactions, Vol 15, Iss 1, Pp 127-138 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1742-9145 1742-9153 17429145 |
| DOI: | 10.1080/17429145.2020.1766585 |
| Popis: | The effect of a soil thermophilic bacteria (STB), Ureibacillus sp. 18UE/10 on the status of wheat plants was evaluated. A greenhouse assay was performed, mimicking scenarios of soil impoverishment and aridity, which included Rhizophagus irregularis, a crop enhancer AMF, for effect comparison. Treatments with strain 18, R. irregularis or both had no significant effect on biomass production, however affected plant physiology. A different partition in biomass, nitrogen and carbon content were observed, resulting in a decreased C/N ratio. Elemental analysis showed an increase in N and P content in shoots, and for treatments containing STB a decrease in the content of several toxic metals. Strain 18 had a distinct δ13C isotopic signature translating an increased stomatal conductance. ATR-IR spectroscopy revealed that root exudate influenced STB cell wall structure and increased the bacterial survival rate at 25°C. These findings show that STB can interact with a plant partner under rhizospheric conditions. |
| Databáze: | Directory of Open Access Journals |
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