Microbial community and functional prediction during the processing of salt production in a 1000-year-old marine solar saltern of South China

Wei, Yali; Long, Zi‐Jie; Ren, Ming‐Xun

doi:10.1016/j.scitotenv.2021.152014

Cited by 16 publications

(18 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results were also previously observed in deep ocean ecosystems [34], saline soils [35], deep-sea sediments [36,37], and in other salterns [14]. Furthermore, Wei et al [15] have recently described the fungal composition of a millennial coastal saltern in South China, where the fungal community was different from that which was detected in the continental saltern of this study.…”

Section: Discussionsupporting

confidence: 86%

“…Other halotolerant fungi, such as Cladosporium, Trimmatostroma, and Penicillum, or the osmotolerant yeasts Candida, Metschnikowia, and Pichia, previously described in salty environments [7,14,15], have been detected in this continental saltern too. Several species of Cladosporium are considered true halophiles that are present in hypersaline environments of different geographical areas [41], and the presence of the halophilic Trimmatostroma has been associated with Adriatic salterns [42].…”

Section: Discussionmentioning

confidence: 61%

“…Studies regarding prokaryotic diversity and distribution have been conducted at different salterns using both culture-dependent and culture-independent methods [8][9][10][11][12]. Fewer studies have been conducted on the examination of fungal communities [13][14][15]. In the last few years, DNA metabarcoding has become an effective tool for the identification of yeast and other fungal species.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fungal Diversity and Composition of the Continental Solar Saltern in Añana Salt Valley (Spain)

Azpiazu-Muniozguren

Perez

Rementerı́a

et al. 2021

JoF

View full text Add to dashboard Cite

The Añana Salt Valley in Spain is an active continental solar saltern formed 220 million years ago. To date, no fungal genomic studies of continental salterns have been published, although DNA metabarcoding has recently expanded researchers’ ability to study microbial community structures. Accordingly, the aim of this present study was to evaluate fungal diversity using the internal transcribed spacer (ITS) metabarcoding at different locations along the saltern (springs, ponds, and groundwater) to describe the fungal community of this saline environment. A total of 380 fungal genera were detected. The ubiquity of Saccharomyces was observed in the saltern, although other halotolerant and halophilic fungi like Wallemia, Cladosporium, and Trimmatostroma were also detected. Most of the fungi observed in the saltern were saprotrophs. The fungal distribution appeared to be influenced by surrounding conditions, such as the plant and soil contact, cereal fields, and vineyards of this agricultural region.

show abstract

Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 61%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fungal Diversity and Composition of the Continental Solar Saltern in Añana Salt Valley (Spain)

Azpiazu-Muniozguren

Perez

Rementerı́a

et al. 2021

JoF

View full text Add to dashboard Cite

show abstract

“…Cyanobium_PCC-6307 and Leptolyngbya_PPC_6406, as the members of Cyanobacteria, responded differently to N enrichment. N increased the abundance of Cyanobium_ PCC-6307, related to N and C fixation (Wei et al, 2022), while decreased the abundance of Leptolyngbya_PPC_6406, a diazotroph adept at N 2 -fixing (Berman-Frank et al, 2003). Similar patterns have been reported by Berthrong et al (2014) and Wang et al (2018), in which N input may reduce the competitive ability of microbes adept at N 2 -fixing.…”

Section: N Addition Changed Bacterial Community Assembly and Their Po...supporting

confidence: 75%

Nitrogen Enrichment Reduces the Diversity of Bacteria and Alters Their Nutrient Strategies in Intertidal Zones

Dong

Luo

et al. 2022

Front. Mar. Sci.

View full text Add to dashboard Cite

Intertidal ecosystems are affected by severe nitrogen (N) pollution as a result of anthropogenic activities, and it is unclear how this may affect intertidal microbial communities, which play critical roles in regulating biogeochemical cycles. To address this gap, we conducted a two-month mesocosm experiment using six targeted concentrations of total N. The findings indicated that N entering seawaters has direct negative effects on the bacterial diversity. Dose dependence was found for the effects of N on bacterial diversity in sediment: low N addition increased the bacterial diversity, but a reduction in bacterial diversity occurred when N exceeded a certain value (≥ 3 mg L−1). Additionally, N enrichment caused clear shifts in bacterial community composition with increases in the relative abundance of Balneola (organic-degrading), Phalacroma mitra (carbohydrate-fermenting), and Bacteroides (phosphorus (P)-solubilizing), and decreases in Leptolyngbya_PPC_6406 (N2-fixing). The increased abundance in P-solubilizing and organic-degrading bacteria and decrease in N-fixing bacteria, combined with the upregulated activity of alkaline phosphatase and downregulation of urease activity, implied that the bacterial assemblage tended to be more effective in P and carbon acquisition but reduced N acquisition. Further path analysis suggested that N had direct effects on bacteria and contributed 50%–100% to the variations in bacterial diversity, whereas environmental changes such as dissolved oxygen and pH played minor roles. Overall, bacteria occurring in sediment were likely more stress-resistant to high N exposure than those occurring in seawater, possibly due to the high buffering capacity of sediment and growth tolerances of bacteria in the sediment. These findings point to the vulnerability of microbes in water systems to increasing global N loading, and that N reduction is needed to combat the loss of microbial diversity.

show abstract

“…Marine bacteria have been regarded as valuable sources for novel bioactivity metabolites with better biocatalytic properties, e.g., high salinity, high pressure, hyperthermostability, barophilicity, alkali resistance, and low temperature, which can serve various biotechnological applications, such as pharmaceutical, food, and cosmetics [ 14 , 18 , 22 , 23 , 24 , 26 , 27 , 28 ]. Agar in the macroalgae accounted for ~60% of dry weight in its cell wall [ 29 ], and the bacteria with the capacity of metabolizing agar as their only carbon and energy source are recognized as agarolytic bacteria.…”

Section: Discussionmentioning

confidence: 99%

Analysis of the Antioxidant Composition of Low Molecular Weight Metabolites from the Agarolytic Bacterium Alteromonas macleodii QZ9-9: Possibilities for High-Added Value Utilization of Macroalgae

Wang

Feng

et al. 2022

Antioxidants

View full text Add to dashboard Cite

Agar accounts for ~60% of the dry weight of some red macroalgae, and the breakdown of this kind of polysaccharide releases high-value compounds; therefore, the resource utilization of agar is of great significance to improve the added value of these macroalgae. Herein, Alteromonas macleodii QZ9-9 isolated from tropical Gracilaria hainanensis in Hainan Island was characterized as an agarolytic bacterium, which displayed a high agar-degrading activity. The highest diameters of the degradation zones of the A. macleodii QZ9-9 and its extracellular-agarase (12.16 U/mL) were 41.46 mm and 22.89 mm, respectively, and the first-order degradation rate constants of those were 0.02 h−1 and 0.77 U−1, respectively. Importantly, the fermentation products of A. macleodii QZ9-9 exhibited antioxidant activity, and the peak of DPPH scavenging activity of 50 h fermentation products of this strain was up to 50.79% in the reaction for 1 h; the DPPH scavenging activity of low molecule metabolites (≤3 kDa) in particular was up to ~85.85%. A total of 766 metabolites were detected in the low molecule metabolites by metabolomics. The peptide-like metabolites, such as prolyl–histidine, isoleucyl–histidine, isoleucyl–proline and arginyl–proline, and the antioxidant maculosin were found in the top 20 metabolites with relatively high abundance. Additionally, the antioxidant activity of maculosin was further verified in this work. We concluded that the low molecule metabolites of A. macleodii QZ9-9 with relatively high antioxidant activity are interesting candidates for preparing desirable non-toxic antioxidants, thereby facilitating the high value-added utilization of macroalgae in the fields of cosmetic, food preservation, and pharmaceutical industries.

show abstract

Microbial community and functional prediction during the processing of salt production in a 1000-year-old marine solar saltern of South China

Cited by 16 publications

References 54 publications

Fungal Diversity and Composition of the Continental Solar Saltern in Añana Salt Valley (Spain)

Fungal Diversity and Composition of the Continental Solar Saltern in Añana Salt Valley (Spain)

Nitrogen Enrichment Reduces the Diversity of Bacteria and Alters Their Nutrient Strategies in Intertidal Zones

Analysis of the Antioxidant Composition of Low Molecular Weight Metabolites from the Agarolytic Bacterium Alteromonas macleodii QZ9-9: Possibilities for High-Added Value Utilization of Macroalgae

Contact Info

Product

Resources

About