Conversion of mangrove forests to shrimp ponds in southeastern China destabilizes sediment microbial networks

Wu, Lianzuan; Yang, Ping; Luo, Liangjuan; Zhu, Wanyi; Yan, Hong; Tong, Chuan; Peñuelas, Josep

doi:10.1016/j.geoderma.2022.115907

Cited by 11 publications

(1 citation statement)

References 91 publications

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“…Although various studies have successfully reported the isolation of cyanobacterial strains from mangroves (Ceccon et al, 2019;Wu et al, 2022;Zhang et al, 2022), these are usually not associated with a characterization of the communities from which they were isolated, and consequently, the authors are usually unable to address whether they have isolated any of the actual abundant ones. On the other hand, our results suggest that standard isolation procedures can already yield some of the abundant biofilmassociated cyanobacteria, as well as rarer members of the community.…”

Section: Isolation Of Some Of the Most Abundant Cyanobacteria Present...mentioning

confidence: 99%

Diversity, metabolome profiling and bioactivities of benthic filamentous cyanobacteria isolated from coastal mangroves of Mayotte

Wang,

Halary,

Duval

et al. 2023

Front. Mar. Sci.

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IntroductionCyanobacteria are important members of the dense biofilms that colonize available substrates in mangrove habitats worldwide. However, their taxonomic diversity and biological activities have received little attention.MethodsThe occurrence of cyanobacteria is evaluated in 27 biofilms collected from mangroves in Mayotte. Filamentous cyanobacterial strains were isolated and characterized using 16S rRNA comparative gene sequence analysis. LC-MS/MS experiments were performed on the crude extracts of the faster-growing strains, and construction of their molecular network showed a conspectus of their chemical diversity. Biological activities of the strain extracts were then evaluated using standard assays.Results and discussionIsolation procedures yielded 43 strains representing 22 species-level taxa, of which only three could be assigned to existing species. Some of these strains were among the most abundant cyanobacteria present in biofilms. PCR assays did not support the production of the major cyanotoxins. Analysis of metabolites from 23 strains using both in silico tools ISDB- DNP (In silico Data Base–Dictionary of Natural Products) and MolDiscovery, revealed occurrence of godavarin K, a limonoid natural product previously isolated from the seeds of an Indian mangrove tree. This annotation was further confirmed by the marine database MarinLit, suggesting that cyanobacteria might be an alternative source of godavarin K and its four isomers. While no significant antimicrobial and cytotoxic activities were observed, some strains exhibited anthelmintic and antibiofilm activities that warrant further investigation and may be relevant to biofilm ecology. Mangrove biofilms thus appear to be an untapped reservoir of novel culturable cyanobacterial lineages, with bioactivities relevant to their biofilm lifestyle, which may be of interest for bioinspiration.

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Section: Isolation Of Some Of the Most Abundant Cyanobacteria Present...mentioning

confidence: 99%

Diversity, metabolome profiling and bioactivities of benthic filamentous cyanobacteria isolated from coastal mangroves of Mayotte

Wang,

Halary,

Duval

et al. 2023

Front. Mar. Sci.

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CO2 fluxes contrast between aquaculture ponds and mangrove forests and its implications for coastal wetland rehabilitation in Leizhou Peninsula, China

Gou,

Feng,

Zhou

et al. 2024

Agriculture, Ecosystems & Environment

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Composition and assembly of soil bacterial communities between tidal saltwater and freshwater marshes in China

Zhan,

Wang,

Tang

et al. 2024

Applied Soil Ecology

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Conversion of mangrove forests to shrimp ponds in southeastern China destabilizes sediment microbial networks

Cited by 11 publications

References 91 publications

Diversity, metabolome profiling and bioactivities of benthic filamentous cyanobacteria isolated from coastal mangroves of Mayotte

Diversity, metabolome profiling and bioactivities of benthic filamentous cyanobacteria isolated from coastal mangroves of Mayotte

CO2 fluxes contrast between aquaculture ponds and mangrove forests and its implications for coastal wetland rehabilitation in Leizhou Peninsula, China

Composition and assembly of soil bacterial communities between tidal saltwater and freshwater marshes in China

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