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http://hdl.handle.net/10451/52117
Título: | Non-Toxic Increases in Nitrogen Availability Can Improve the Ability of the Soil Lichen Cladonia rangiferina to Cope with Environmental Changes |
Autor: | Morillas, Lourdes Roales, Javier Cruz, Cristina Munzi, Silvana |
Data: | Mar-2022 |
Editora: | MDPI |
Citação: | Morillas, L.; Roales, J.; Cruz, C.; Munzi, S. Non-Toxic Increases in Nitrogen Availability Can Improve the Ability of the Soil Lichen Cladonia rangiferina to Cope with Environmental Changes. J. Fungi 2022, 8, 333. https://doi.org/10.3390/jof8040333 |
Resumo: | Climate change and atmospheric nitrogen (N) deposition on drylands are greatly threatening these especially vulnerable areas. Soil biocrust-forming lichens in drylands can provide early indicators of these disturbances and play a pivotal role, as they contribute to key ecosystem services. In this study, we explored the effects of different long-term water availability regimes simulating climate changes and their interaction with N addition on the physiological response of the soil lichen Cladonia rangiferina. Three sets of this lichen were subjected to control, reduced watering, and reduced watering and N addition (40 kg NH4NO3 ha−1 year−1) treatments for 16 months. Finally, all samples were subjected to daily hydration cycles with N-enriched water at two levels (40 and 80 kg NH4NO3 ha−1 year−1) for 23 days. We found that reduced watering significantly decreased the vitality of this lichen, whereas N addition unexpectedly helped lichens subjected to reduced watering to cope with stress produced by high temperatures. We also found that long-term exposure to N addition contributed to the acclimation to higher N availability. Overall, our data suggest that the interactions between reduced watering and increased N supply and temperature have an important potential to reduce the physiological performance of this soil lichen. |
Peer review: | yes |
URI: | http://hdl.handle.net/10451/52117 |
DOI: | 10.3390/jof8040333 |
Aparece nas colecções: | cE3c - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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jof-08-00333-v2.pdf | 1,14 MB | Adobe PDF | Ver/Abrir |
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