| Title |
Wallemia peruviensis sp. nov., a new xerophilic fungus from an agricultural setting in South America
|
|---|---|
| Published in |
Extremophiles, August 2017
|
| DOI | 10.1007/s00792-017-0960-0 |
| Pubmed ID | |
| Authors |
Jorge R. Díaz-Valderrama, Hai D. T. Nguyen, M. Catherine Aime |
| Abstract |
We obtained four isolates of the xerophilic genus Wallemia from the rooftop of a house made of red brick and cement in an agronomic field planted with common beans and maize in Pachacamac, Lima, Peru. Bayesian phylogenetic analysis with rDNA gene sequences showed these Wallemia isolates form a distinct and strongly supported clade closely related to W. hederae. We examined the macro and micromorphology, growth rate and production of exudates of isolates on media containing different amounts of glucose and NaCl (water activity from 0.9993 to 0.8480). Their chaotropic and kosmotropic tolerance were tested on media with multiple molar concentrations of MgCl2 and MgSO4 (water activity from 0.9880 to 0.7877). Isolates are xerophilic and halotolerant, growing on 17% NaCl-supplemented media (water activity = 0.8480). Maximum concentrations of MgCl2 and MgSO4 at which growth was observed were 1.7 and 3.5 M, respectively. Isolates were shown to represent a novel species, described as Wallemia peruviensis sp. nov. In contrast to W. hederae, W. peruviensis does not produce exudates on malt extract agar + 17% NaCl media. An updated dichotomous key to Wallemia species is provided. This is the first new species of Wallemia described from South America and the first association of a Wallemia species with an agricultural environment on this continent. |
X Demographics
The data shown below were collected from the profiles of 4 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 25% |
| Brazil | 1 | 25% |
| Unknown | 2 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 2 | 50% |
| Members of the public | 2 | 50% |
Mendeley readers
The data shown below were compiled from readership statistics for 19 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 19 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 5 | 26% |
| Other | 4 | 21% |
| Student > Master | 3 | 16% |
| Professor | 2 | 11% |
| Student > Doctoral Student | 1 | 5% |
| Other | 1 | 5% |
| Unknown | 3 | 16% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 12 | 63% |
| Biochemistry, Genetics and Molecular Biology | 2 | 11% |
| Unknown | 5 | 26% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 November 2017.
All research outputs
#13,493,320
of 22,999,744 outputs
Outputs from Extremophiles
#478
of 801 outputs
Outputs of similar age
#158,239
of 315,948 outputs
Outputs of similar age from Extremophiles
#11
of 15 outputs
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