RT Journal Article
T1 Transcriptional response of the xerotolerant Arthrobacter sp. Helios strain to PEG-induced drought stress
A1 Hernández-Fernández, Gabriel
A1 Galán, Beatriz
A1 Carmona, Manuel
A1 Castro Ruiz, Laura
A1 García, José Luis
AB A new bacterial strain has been isolated from the microbiome of solar panels and classified as Arthrobacter sp. Helios according to its 16S rDNA, positioning it in the “Arthrobacter citreus group.” The isolated strain is highly tolerant to desiccation, UV radiation and to the presence of metals and metalloids, while it is motile and capable of growing in a variety of carbon sources. These characteristics, together with observation that Arthrobacter sp. Helios seems to be permanently prepared to handle the desiccation stress, make it very versatile and give it a great potential to use it as a biotechnological chassis. The new strain genome has been sequenced and its analysis revealed that it is extremely well poised to respond to environmental stresses. We have analyzed the transcriptional response of this strain to PEG6000-mediated arid stress to investigate the desiccation resistance mechanism. Most of the induced genes participate in cellular homeostasis such as ion and osmolyte transport and iron scavenging. Moreover, the greatest induction has been found in a gene cluster responsible for biogenic amine catabolism, suggesting their involvement in the desiccation resistance mechanism in this bacterium.
PB Frontiers
SN 1664-302X
YR 2022
FD 2022
LK https://hdl.handle.net/20.500.14352/91247
UL https://hdl.handle.net/20.500.14352/91247
LA eng
NO Hernández-Fernández, G.; Galán, B.; Carmona, M.; Castro, L.; García, J. L. Transcriptional response of the xerotolerant Arthrobacter sp. Helios strain to PEG-induced drought stress. Frontiers in microbiology 2022, 13, 1009068.
NO Ministerio de Ciencia e Innovación (España)
DS Docta Complutense
RD 2 sept 2024