Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/45922
Title: Uncovered Microbial Diversity in Antarctic Cryptoendolithic Communities Sampling three Representative Locations of the Victoria Land
Authors: Coleine, Claudia
Pombubpa, Nuttapon
Zucconi, Laura
Onofri, Silvano 
Turchetti, Benedetta
Buzzini, Pietro
Stajich, Jason E
Selbmann, Laura 
Journal: MICROORGANISMS 
Issue Date: 2020
Abstract: 
The endolithic niche represents an ultimate refuge to microorganisms in the Mars-like environment of the Antarctic desert. In an era of rapid global change and desertification, the interest in these border ecosystems is increasing due to speculation on how they maintain balance and functionality at the dry limits of life. To assure a reliable estimation of microbial diversity, proper sampling must be planned in order to avoid the necessity of re-sampling as reaching these remote locations is risky and requires tremendous logistical and economical efforts. In this study, we seek to determine the minimum number of samples for uncovering comprehensive bacterial and fungal diversity, comparing communities in strict vicinity to each other. We selected three different locations of the Victoria Land (Continental Antarctica) at different altitudes and showing sandstone outcrops of a diverse nature and origin-Battleship promontory (834 m above sea level (a.s.l.), Southern VL), Trio Nunatak (1,470 m a.s.l., Northern VL) and Mt New Zealand (3,100 m a.s.l., Northern VL). Overall, we found that a wider sampling would be required to capture the whole amplitude of microbial diversity, particularly in Northern VL. We concluded that the inhomogeneity of the rock matrix and the stronger environmental pressure at higher altitudes may force the communities to a higher local diversification.
URI: http://hdl.handle.net/2067/45922
ISSN: 2076-2607
DOI: 10.3390/microorganisms8060942
Rights: Attribution-NonCommercial 3.0 United States
Appears in Collections:A1. Articolo in rivista

Files in This Item:
File Description SizeFormat Existing users please
Coleine et al., 2020 Microorganisms.pdf1.5 MBAdobe PDF    Request a copy
Show full item record

SCOPUSTM   
Citations 10

7
Last Week
0
Last month
0
checked on Jun 26, 2022

Page view(s)

36
Last Week
18
Last month
10
checked on Jul 4, 2022

Download(s)

1
checked on Jul 4, 2022

Google ScholarTM

Check

Altmetric


This item is licensed under a Creative Commons License Creative Commons