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Your search keyword '"Nováková, Alena [0000-0003-0911-3565]"' showing total 3 results
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3 results on '"Nováková, Alena [0000-0003-0911-3565]"'

1. A Second Fungal Outbreak in Castañar Cave, Spain, Discloses the Fragility of Subsurface Ecosystems

Author

Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), European Commission, Martín-Pozas, Tamara [0000-0001-7941-7949], Nováková, Alena [0000-0003-0911-3565], Jurado, Valme [0000-0003-0972-9909], Cuezva, Soledad [0000-0002-2439-4767], Fernández-Cortés, Ángel [0000-0002-8482-3308], Sáiz-Jiménez, Cesáreo [0000-0003-0036-670X], Sánchez Moral, Sergio [0000-0002-7382-3441], Martín-Pozas, Tamara, Nováková, Alena, Jurado, Valme, Cuezva, Soledad, Fernández-Cortés, Ángel, Sáiz-Jiménez, Cesáreo, Sánchez-Moral, Sergio, Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), European Commission, Martín-Pozas, Tamara [0000-0001-7941-7949], Nováková, Alena [0000-0003-0911-3565], Jurado, Valme [0000-0003-0972-9909], Cuezva, Soledad [0000-0002-2439-4767], Fernández-Cortés, Ángel [0000-0002-8482-3308], Sáiz-Jiménez, Cesáreo [0000-0003-0036-670X], Sánchez Moral, Sergio [0000-0002-7382-3441], Martín-Pozas, Tamara, Nováková, Alena, Jurado, Valme, Cuezva, Soledad, Fernández-Cortés, Ángel, Sáiz-Jiménez, Cesáreo, and Sánchez-Moral, Sergio

Abstract

Castañar is a cave with strict visitor control measures since it was open to public visits in 2003. However, in recent years, the cave suffered two fungal outbreaks, the first in 2008 and controlled by cleaning the contaminated sediments and subsequent closure of the cave until 2014. The cave was reopened but limited to a maximum of 450 visitors/year. Despite these restrictions on visit, the cave experienced a second outbreak in 2021, originating from the installation of a steel grating walkway, aiming at protecting the ground sediments from the visitors’ footsteps. Here, we conducted an analysis using Next-Generation Sequencing and culture-dependent techniques to investigate the fungal communities related to the second outbreak and compare with those present before the cave suffered the outbreak. The results show that the most abundant fungi involved in the 2021 outbreak were already detected in 2020, and even in 2008 and 2009, although the main species that originating both outbreaks were different, likely due to the different carbon sources introduced into the cave.

Published
2024

2. Diversity of Microfungi in a High Radon Cave Ecosystem

Author

Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), European Commission, Martín-Pozas, Tamara [0000-0001-7941-7949], Nováková, Alena [0000-0003-0911-3565], Jurado, Valme [0000-0003-0972-9909], Cuezva, Soledad [0000-0002-2439-4767], Sáiz-Jiménez, Cesáreo [0000-0003-0036-670X], Sánchez Moral, Sergio [0000-0002-7382-3441], Fernández-Cortés, Ángel [0000-0002-8482-3308], Martín-Pozas, Tamara, Nováková, Alena, Jurado, Valme, Fernández-Cortés, Ángel, Cuezva, Soledad, Sáiz-Jiménez, Cesáreo, Sánchez-Moral, Sergio, Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), European Commission, Martín-Pozas, Tamara [0000-0001-7941-7949], Nováková, Alena [0000-0003-0911-3565], Jurado, Valme [0000-0003-0972-9909], Cuezva, Soledad [0000-0002-2439-4767], Sáiz-Jiménez, Cesáreo [0000-0003-0036-670X], Sánchez Moral, Sergio [0000-0002-7382-3441], Fernández-Cortés, Ángel [0000-0002-8482-3308], Martín-Pozas, Tamara, Nováková, Alena, Jurado, Valme, Fernández-Cortés, Ángel, Cuezva, Soledad, Sáiz-Jiménez, Cesáreo, and Sánchez-Moral, Sergio

Abstract

Castañar Cave is a clear example of an oligotrophic ecosystem with high hygrothermal stability both seasonal and interannual and the particularity of registering extraordinary levels of environmental radiation. These environmental conditions make the cave an ideal laboratory to evaluate both the responses of the subterranean environment to sudden changes in the matter and energy fluxes with the exterior and also any impact derived from its use as a tourist resource under a very restrictive access regime. In 2008, a fungal outbreak provoked by a vomit contaminated the sediments which were removed and subsequently treated with hydrogen peroxide. Fungal surveys were carried out in 2008 and 2009. The visits were resumed in 2014. Here, 12 years after the outbreak, we present an exhaustive study on the cave sediments in order to know the distribution of the different fungal taxa, as well as the prevalence and spatio-temporal evolution of the fungi caused by the vomit over the years under the conditions of relative isolation and high radiation that characterize this cave.

Published
2022

3. Diversity of Microfungi in a High Radon Cave Ecosystem

Author

Tamara Martin-Pozas, Alena Nováková, Valme Jurado, Angel Fernandez-Cortes, Soledad Cuezva, Cesareo Saiz-Jimenez, Sergio Sanchez-Moral, Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), European Commission, Martín-Pozas, Tamara, Nováková, Alena, Jurado, Valme, Cuezva, Soledad, Sáiz-Jiménez, Cesáreo, Sánchez Moral, Sergio, Martín-Pozas, Tamara [0000-0001-7941-7949], Nováková, Alena [0000-0003-0911-3565], Jurado, Valme [0000-0003-0972-9909], Cuezva, Soledad [0000-0002-2439-4767], Sáiz-Jiménez, Cesáreo [0000-0003-0036-670X], and Sánchez Moral, Sergio [0000-0002-7382-3441]

Subjects
Microbiology (medical), Microbiology
Abstract

12 paginas.- 5 figuras.- referencias.- The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fmicb.2022.869661/full#supplementary-material, Castañar Cave is a clear example of an oligotrophic ecosystem with high hygrothermal stability both seasonal and interannual and the particularity of registering extraordinary levels of environmental radiation. These environmental conditions make the cave an ideal laboratory to evaluate both the responses of the subterranean environment to sudden changes in the matter and energy fluxes with the exterior and also any impact derived from its use as a tourist resource under a very restrictive access regime. In 2008, a fungal outbreak provoked by a vomit contaminated the sediments which were removed and subsequently treated with hydrogen peroxide. Fungal surveys were carried out in 2008 and 2009. The visits were resumed in 2014. Here, 12 years after the outbreak, we present an exhaustive study on the cave sediments in order to know the distribution of the different fungal taxa, as well as the prevalence and spatio-temporal evolution of the fungi caused by the vomit over the years under the conditions of relative isolation and high radiation that characterize this cave., This research was supported by the Spanish Ministry of Science and Innovation through project PID2019-110603RB-I00 and the collaboration of PID2020-114978GB-I00 project, MCIN/AEI/FEDER, UE/10.13039/501100011033.

Published
2022
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