An increasing trend of diffuse CO2 emission from Teide volcano (Tenerife, Canary Islands): geochemical evidence of magma degassing episodes

2013 ◽  
Vol 170 (4) ◽  
pp. 585-592 ◽  
Author(s):  
Nemesio M. Pérez ◽  
Pedro A. Hernández ◽  
Eleazar Padrón ◽  
Gladys Melián ◽  
Dácil Nolasco ◽  
...  
Keyword(s):  
Canary Islands ◽  
Co2 Emission ◽  
Magma Degassing ◽  
Geochemical Evidence ◽  
Increasing Trend ◽  
Teide Volcano ◽  
Diffuse Co2 Emission

Geochemical evidences of seismo-volcanic unrests at the NW rift zone of Tenerife, Canary Islands, inferred from diffuse CO2 emission

2017 ◽  
Vol 79 (4) ◽  
Author(s):  
Pedro A. Hernández ◽  
Germán Padilla ◽  
José Barrancos ◽  
Gladys Melián ◽  
Eleazar Padrón ◽  
...  
Keyword(s):  
Canary Islands ◽  
Co2 Emission ◽  
Rift Zone ◽  
Diffuse Co2 Emission

Analysis of long- and short-term temporal variations of the diffuse CO2 emission from Timanfaya volcano, Lanzarote, Canary Islands

2012 ◽  
Vol 27 (12) ◽  
pp. 2486-2499 ◽  
Author(s):  
Pedro A. Hernández ◽  
Germán Padilla ◽  
Eleazar Padrón ◽  
Nemesio M. Pérez ◽  
David Calvo ◽  
...  
Keyword(s):  
Canary Islands ◽  
Co2 Emission ◽  
Temporal Variations ◽  
Short Term ◽  
Diffuse Co2 Emission

Changes in the Diffuse CO2 Emission and Relation to Seismic Activity in and around El Hierro, Canary Islands

2008 ◽  
Vol 165 (1) ◽  
pp. 95-114 ◽  
Author(s):  
Eleazar Padrón ◽  
Gladys Melián ◽  
Rayco Marrero ◽  
Dácil Nolasco ◽  
José Barrancos ◽  
...  
Keyword(s):  
Canary Islands ◽  
Seismic Activity ◽  
Co2 Emission ◽  
El Hierro ◽  
Diffuse Co2 Emission

scholarly journals Cyclotide host-defense tailored for species and environments in violets from the Canary Islands

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Blazej Slazak ◽  
Klara Kaltenböck ◽  
Karin Steffen ◽  
Martyna Rogala ◽  
Priscila Rodríguez-Rodríguez ◽  
...  
Keyword(s):  
Host Defense ◽  
Canary Islands ◽  
Cyclic Peptides ◽  
Fusarium Culmorum ◽  
Host Defense Peptides ◽  
Biological Assays ◽  
Minimal Inhibitory Concentrations ◽  
Wide Range ◽  
The Common ◽  
Teide Volcano

AbstractCyclotides are cyclic peptides produced by plants. Due to their insecticidal properties, they are thought to be involved in host defense. Violets produce complex mixtures of cyclotides, that are characteristic for each species and variable in different environments. Herein, we utilized mass spectrometry (LC–MS, MALDI-MS), transcriptomics and biological assays to investigate the diversity, differences in cyclotide expression based on species and different environment, and antimicrobial activity of cyclotides found in violets from the Canary Islands. A wide range of different habitats can be found on these islands, from subtropical forests to dry volcano peaks at high altitudes. The islands are inhabited by the endemic Viola palmensis, V. cheiranthifolia, V. anagae and the common V. odorata. The number of cyclotides produced by a given species varied in plants from different environments. The highest diversity was noted in V. anagae which resides in subtropical forest and the lowest in V. cheiranthifolia from the Teide volcano. Transcriptome sequencing and LC–MS were used to identify 23 cyclotide sequences from V. anagae. Cyclotide extracts exhibited antifungal activities with the lowest minimal inhibitory concentrations noted for V. anagae (15.62 μg/ml against Fusarium culmorum). The analysis of the relative abundance of 30 selected cyclotides revealed patterns characteristic to both species and populations, which can be the result of genetic variability or environmental conditions in different habitats. The current study exemplifies how plants tailor their host defense peptides for various habitats, and the usefulness of cyclotides as markers for chemosystematics.

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