Ecophysiology and phylogeny of new terricolous and epiphytic chlorolichens in a fog oasis of the Atacama Desert.
Trebouxia
ITS
gas exchange
lichen
lichenicolous fungi
rbcL
Journal
MicrobiologyOpen
ISSN: 2045-8827
Titre abrégé: Microbiologyopen
Pays: England
ID NLM: 101588314
Informations de publication
Date de publication:
10 2019
10 2019
Historique:
received:
10
11
2018
revised:
27
05
2019
accepted:
03
06
2019
pubmed:
6
7
2019
medline:
23
6
2020
entrez:
6
7
2019
Statut:
ppublish
Résumé
The Atacama Desert is one of the driest and probably oldest deserts on Earth where only a few extremophile organisms are able to survive. This study investigated two terricolous and two epiphytic lichens from the fog oasis "Las Lomitas" within the National Park Pan de Azúcar which represents a refugium for a few vascular desert plants and many lichens that can thrive on fog and dew alone. Ecophysiological measurements and climate records were combined with molecular data of the mycobiont, their green algal photobionts and lichenicolous fungi to gain information about the ecology of lichens within the fog oasis. Phylogenetic and morphological investigations led to the identification and description of the new lichen species Acarospora conafii sp. nov. as well as the lichenicolous fungi that accompanied them and revealed the trebouxioid character of all lichen photobionts. Their photosynthetic responses were compared during natural scenarios such as reactivation by high air humidity and in situ fog events to elucidate the activation strategies of this lichen community. Epiphytic lichens showed photosynthetic activity that was rapidly induced by fog and high relative air humidity whereas terricolous lichens were only activated by fog.
Identifiants
pubmed: 31276321
doi: 10.1002/mbo3.894
pmc: PMC6813448
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
e894Informations de copyright
© 2019 The Authors. MicrobiologyOpen published by John Wiley & Sons Ltd.
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