marine yeast
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Author(s):  
Amany A. Hassabo ◽  
Eman Ibrahim ◽  
Basant Ali ◽  
Hossam E. Emam

2021 ◽  
Author(s):  
◽  
Melissa Francis

<p>This is the first known investigation of marine yeast biodiversity from waters surrounding New Zealand’s main Islands. Marine yeasts were cultured onto agar plates from algae sampled at three locations in the Wellington Region. DNA extractions and PCR amplifications of the internal transcribed spacer (ITS) regions were conducted, and resultant sequence data were used for isolate identification and phylogenetic analysis. Yeasts isolated during this investigation were not unique; seventy-four isolates were identified from a range of genera that are frequently detected in marine and terrestrial environments worldwide. Furthermore, high ITS sequence similarity was observed between yeasts isolated during this investigation and those from geographically distant locations. These findings may indicate that marine yeasts are ubiquitous at a global level, although evidence is insufficient as to whether yeasts also demonstrate biogeographic distribution patterns. Yeasts isolated during this investigation may have ecological implications in New Zealand’s marine environment; marine yeasts are likely to play a general saprophytic role and certain genera are pathogenic. Isolates were also identified from genera that have previously demonstrated beneficial properties and applications, including the production of useful compounds and highly nutritious yeast biomass, biocontrol potential against the postharvest decay of produce, and degradation abilities that may enable bioremediation of polluted marine environments.</p>


2021 ◽  
Author(s):  
◽  
Melissa Francis

<p>This is the first known investigation of marine yeast biodiversity from waters surrounding New Zealand’s main Islands. Marine yeasts were cultured onto agar plates from algae sampled at three locations in the Wellington Region. DNA extractions and PCR amplifications of the internal transcribed spacer (ITS) regions were conducted, and resultant sequence data were used for isolate identification and phylogenetic analysis. Yeasts isolated during this investigation were not unique; seventy-four isolates were identified from a range of genera that are frequently detected in marine and terrestrial environments worldwide. Furthermore, high ITS sequence similarity was observed between yeasts isolated during this investigation and those from geographically distant locations. These findings may indicate that marine yeasts are ubiquitous at a global level, although evidence is insufficient as to whether yeasts also demonstrate biogeographic distribution patterns. Yeasts isolated during this investigation may have ecological implications in New Zealand’s marine environment; marine yeasts are likely to play a general saprophytic role and certain genera are pathogenic. Isolates were also identified from genera that have previously demonstrated beneficial properties and applications, including the production of useful compounds and highly nutritious yeast biomass, biocontrol potential against the postharvest decay of produce, and degradation abilities that may enable bioremediation of polluted marine environments.</p>


2021 ◽  
Vol 10 (45) ◽  
Author(s):  
Alex R. Villarreal ◽  
Danielle E. Campbell ◽  
Shanice S. Webster ◽  
Ryan C. Hunter

We report the draft genome sequence of Scheffersomyces spartinae ARV011, which was isolated from the Great Sippewissett Marsh in Falmouth, Massachusetts. Sequencing was performed using the Illumina NovaSeq 6000 platform, yielding 7,598,030 read pairs 250 bp in length. This resulted in a total draft genome size of 12,132,557 bp.


3 Biotech ◽  
2021 ◽  
Vol 11 (11) ◽  
Author(s):  
Amera Adel ◽  
Ashraf El-Baz ◽  
Yousseria Shetaia ◽  
Noha Mohamed Sorour

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2355
Author(s):  
Allison Leyton ◽  
Michael Araya ◽  
Fadia Tala ◽  
Liset Flores ◽  
María Elena Lienqueo ◽  
...  

Seaweed processing generates liquid fraction residual that could be used as a low-cost nutrient source for microbial production of metabolites. The Rhodotorula strain is able to produce antimicrobial compounds known as sophorolipids. Our aim was to evaluate sophorolipid production, with antibacterial activity, by marine Rhodotorula rubra using liquid fraction residual (LFR) from the brown seaweed Macrocystis pyrifera as the nutrient source. LFR having a composition of 32% w/w carbohydrate, 1% w/w lipids, 15% w/w protein and 52% w/w ash. The best culture condition for sophorolipid production was LFR 40% v/v, without yeast extract, artificial seawater 80% v/v at 15 °C by 3 growth days, with the antibacterial activity of 24.4 ± 3.1 % on Escherichia coli and 21.1 ± 3.8 % on Staphylococcus aureus. It was possible to identify mono-acetylated acidic and methyl ester acidic sophorolipid. These compounds possess potential as pathogen controllers for application in the food industry.


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