Article
Geochemistry & Geophysics
Xiong Zhang, Zhendong Luan, Zengfeng Du, Shichuan Xi, Lianfu Li, Chao Lian, Jianxing Zhang, Ziyu Yin, Liang Ma, Xin Zhang
Summary: This study used an integrated in-situ long-term observation platform to monitor seep venting activity and associated chemosynthetic communities in the Formosa Ridge of the South China Sea. It found that gas hydrates are formed during cold seep venting, interspersed with periods of hydrate decomposition during non-active intervals. The methane concentration and biological cover in chemosynthetic communities exhibited stability.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Chao Liu, Xianyin An, Thomas J. Algeo, Axel Munnecke, Yujie Zhang, Tongxing Zhu
Summary: The study reveals evidence of methane seepage in the Angie Formation of central Tibet, possibly linked to significant climate warming and regional tectonic evolution. Further research is needed to explore the causal relationship between hydrocarbon seepage and global climate change.
Article
Microbiology
Yongxin Lv, Shanshan Yang, Xiang Xiao, Yu Zhang
Summary: In the ocean, understanding the methane cycling in cold seeps is crucial to estimating the oceanic methane budget. Cold-seep eruptions can lead to the destruction of microbial ecosystems that drive methane cycling. This study simulated cold-seep eruptions and used genome-resolved metagenomics to analyze the dynamic changes in the microbial community during these events.
Article
Geosciences, Multidisciplinary
Lei Cao, Chao Lian, Xin Zhang, Huan Zhang, Hao Wang, Li Zhou, Minxiao Wang, Hao Chen, Zhendong Luan, Chaolun Li
Summary: The study at Formosa Ridge showed that the chemosynthetic ecosystem is influenced by methane and oxygen, which drive chemical gradients that spatially distribute the seep communities.
JOURNAL OF MARINE SYSTEMS
(2021)
Article
Engineering, Environmental
Lina Lyu, Kejing Fang, Zhenchang Zhu, Jie Li, Yu Chen, Lin Wang, Zhimao Mai, Qiqi Li, Si Zhang
Summary: This study investigated the potential pollution and bioaccumulation of chlorinated paraffins (CPs) in the deep-sea cold seep ecosystem. High concentrations of CPs were found to be bioaccumulated by deep-sea mussels in the cold seep ecosystem, causing adverse ecological effects. Furthermore, more toxic CPs were accumulated through the transformation of other CPs in this ecosystem. The discovery of CPs bioaccumulation in the deep-sea cold seep ecosystem has significant implications for understanding the deep-sea carbon cycle, addressing global climate change, and formulating policies for ecological and environmental protection.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Chunlei Chen, Yinan Deng, Hanghai Zhou, Lijia Jiang, Zhaochao Deng, Jiawang Chen, Xiqiu Han, Dongdong Zhang, Chunfang Zhang
Summary: Multiple studies have shown that the accumulation of microplastics/nanoplastics in the environment can lead to various problems. However, the effects of these particles on microbial communities and biogeochemical processes, especially methane metabolism, are not well understood. This study conducted a microcosm experiment to expose the particles for 120 days and found that the addition of nanoparticles had a significant adverse effect on bacterial diversity. The presence of nanoparticles also reduced microbial network complexity compared to microplastics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Jianzhen Liang, Jing-Chun Feng, Jie Kong, Yongji Huang, Hui Zhang, Song Zhong, Li Tang, Si Zhang
Summary: This study investigated the microbial communities and mineral assemblages in different habitats of the Haima cold seep and found that AOM-accompanied autogenetic carbonate formation is an important factor influencing mineral assemblages in seep habitats.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Microbiology
Wen-Li Li, Xiyang Dong, Rui Lu, Ying-Li Zhou, Peng-Fei Zheng, Dong Feng, Yong Wang
Summary: The study identified a shallow sulfate-methane transition zone (SMTZ) in cold seep areas of the South China Sea and discovered a high diversity of sulfur-oxidizing bacteria (SOB) and sulfur-reducing bacteria (SRB) in the cores sampled. SOB in the upper layers depended on nitrogen oxides and/or oxygen for sulfide oxidation, while SRB in the lower layers utilized the Wood-Ljungdahl pathway for CO2 fixation, sulfate reduction, and nitrogen fixation in a syntrophic or fermentative lifestyle.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Plant Sciences
Enjing Jin, Huayue Li, Zengzhi Liu, Fei Xiao, Wenli Li
Summary: Two new and six known dixiamycins were isolated from the culture broth of a cold-seep-derived actinomycete Streptomyces olivaceus OUCLQ19-3. The compounds showed notable growth inhibitions against multi-drug-resistant strains, with some being more potent than the positive control tetracycline. Extensive spectroscopic analyses were used to elucidate the structures of the compounds.
JOURNAL OF NATURAL PRODUCTS
(2021)
Article
Engineering, Electrical & Electronic
Lin Guo, Octavian Postolache, Lin Ma, Yang Shi
Summary: This article introduces a ship-borne cold seep sonar system that detects the existence of submarine cold seep by measuring scattering intensity and displays it through an intuitive acoustic image. Through investigation and measurement in the South China Sea, it is proven that the system can effectively identify submarine cold seep.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Biotechnology & Applied Microbiology
Hong Shi, Lingwei Ruan, Zimeng Chen, Yifei Liao, Wenhao Wu, Linmin Liu, Xun Xu
Summary: In this study, the transcriptome of L. luymesi was sequenced, revealing molecular pathways related to sulfur metabolism, sterol biosynthesis, and trehalose synthesis. The study also identified novel mechanisms of sulfate activation, cysteine synthesis, and cholesterol synthesis in L. luymesi. These findings provide a basis for further research on host-symbiont interactions and biological evolution.
Article
Environmental Sciences
Emmelie K. L. Astrom, Bodil A. Bluhm, Tine L. Rasmussen
Summary: This study investigates the extent of chemosynthesis-based carbon entering the food web in a high latitude shelf-system and finds it plays an important role in supporting benthic organisms.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Multidisciplinary Sciences
Lucia Villar-Munoz, Masataka Kinoshita, Joaquim P. Bento, Ivan Vargas-Cordero, Eduardo Contreras-Reyes, Umberta Tinivella, Michela Giustiniani, Natsue Abe, Ryo Anma, Yuji Orihashi, Hikaru Iwamori, Tomoaki Nishikawa, Eugenio Andres Veloso, Satoru Haraguchi
Summary: Integrated analysis of geophysical and geological datasets in the Chile Triple Junction has improved understanding of the hydrogeological system. Anomalous high heat flow values and fluid advection are influenced by geological structures, pressure-driven discharge, and ridge subduction, providing valuable insights for studies related to hydrothermal circulation, seismicity, volcanism, and gas hydrate stability.
SCIENTIFIC REPORTS
(2021)
Article
Fisheries
Rick D. Tate, Brendan P. Kelaher, Craig P. Brand, Christopher R. Gallen, Stephen D. A. Smith, Paul A. Butcher
Summary: The study supports the use of SMART drumlines as an efficient tool for catching target shark species with minimal impact on non-target fauna.
FISHERIES RESEARCH
(2021)
Article
Environmental Sciences
Zhibin Gan, Diana S. Jones, Xinming Liu, Jixing Sui, Dong Dong, Xinzheng Li
Summary: This study conducted phylogenetic analyses on the mitochondrial genomes of extant barnacle lineages, revealing the evolutionary history and adaptive strategy of barnacles in chemosynthetic ecosystems. The results suggest that chemosynthetic barnacles originated in the Cenozoic, coinciding with the origins of other metazoan animals in chemosynthetic habitats as well as the Paleogene mass extinction and oceanic anoxic events.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Oceanography
C. Konn, J. P. Donval, V Guyader, Y. Germain, A-S Alix, E. Roussel, O. Rouxel
Summary: The hydrothermal vent fields on the Mid-Atlantic Ridge showed relative stability over the past few decades, but some changes were observed, indicating possible recent eruptions and variations in depth. Organic geochemistry data provided new insights for Menez Gwen, Snake Pit, and TAG, and a more comprehensive study for Lucky Strike and Rainbow, suggesting both abiogenic and biogenic processes contributing to the production of organic compounds.
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2022)
Article
Multidisciplinary Sciences
Tristan Cordier, Ines Barrenechea Angeles, Nicolas Henry, Franck Lejzerowicz, Cedric Berney, Raphael Morard, Angelika Brandt, Marie-Anne Cambon-Bonavita, Lionel Guidi, Fabien Lombard, Pedro Martinez Arbizu, Ramon Massana, Covadonga Orejas, Julie Poulain, Craig R. Smith, Patrick Wincker, Sophie Arnaud-Haond, Andrew J. Gooday, Colomban de Vargas, Jan Pawlowski
Summary: Remote deep-ocean sediment ecosystems have high biodiversity, with benthic communities being three times more diverse than pelagic realms. These communities are influenced by ocean basins and particulate organic carbon flux from the upper ocean. The presence of plankton DNA in the DOS predicts variations in surface POC export and reveals previously overlooked taxa that may play a role in the biological carbon pump.
Article
Oceanography
Ivan Hernandez-Avila, Marie-Anne Cambon-Bonavita, Jozee Sarrazin, Florence Pradillon
Summary: This study aimed to assess the spatial complexity and reproductive development in shrimp populations in the deep-sea Mid-Atlantic Ridge. The results showed that female shrimp brood eggs within dense aggregations exposed to vent fluids, while inactive areas may serve as important mating grounds for adults. Additionally, the study revealed heterogeneity in population structure at a micro-scale, likely due to variations in environmental conditions.
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2022)
Article
Ecology
Pierre Methou, Chong Chen, Hiromi Kayama Watanabe, Marie-Anne Cambon, Florence Pradillon
Summary: The study explores the relationship between reproduction, diets, and food supply in Rimicaris shrimps, revealing distinct egg production trends among species with different dietary dependencies. It suggests the presence of intrinsic biological rhythms in the deep sea and emphasizes the importance of year-round observations for understanding the life history of vent animals.
ECOLOGY AND EVOLUTION
(2022)
Article
Environmental Sciences
Marion Gueganton, Ouafae Rouxel, Lucile Durand, Valerie Cueff-Gauchard, Nicolas Gayet, Florence Pradillon, Marie-Anne Cambon-Bonavita
Summary: The shrimp Rimicaris exoculata and Rimicaris chacei coexist at deep-sea hydrothermal sites, with both species hosting diverse chemosynthetic symbiotic microbial communities in their cephalothoracic cavity and digestive system. This study used Fluorescence in situ Hybridization (FISH) to visualize and describe the association of specific bacterial lineages with anatomical structures of the shrimp, aiming to identify differences between host species related to their life-history traits.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Chemistry, Medicinal
Andrea Castaldi, Roberta Teta, Germana Esposito, Mehdi A. Beniddir, Nicole J. De Voogd, Sebastien Duperron, Valeria Costantino, Marie-Lise Bourguet-Kondracki
Summary: This study examined a unique molecular family restricted to the Callyspongia genus, discovering a series of rare linear peptides. The structure of one peptide was determined through various analyses, and proposed structures for several other peptides were also suggested. Interestingly, similar substances were found in the molecular network of cyanobacteria strains, indicating that sponge-associated cyanobacteria might be the true producers of these peptides.
Article
Multidisciplinary Sciences
Kathrin Busch, Beate M. Slaby, Wolfgang Bach, Antje Boetius, Ina Clefsen, Ana Colaco, Marie Creemers, Javier Cristobo, Luisa Federwisch, Andre Franke, Asimenia Gavriilidou, Andrea Hethke, Ellen Kenchington, Furu Mienis, Sadie Mills, Ana Riesgo, Pilar Rios, Emyr Martyn Roberts, Detmer Sipkema, Lucia Pita, Peter J. Schupp, Joana Xavier, Hans Tore Rapp, Ute Hentschel
Summary: This study presents a large-scale analysis of microbial diversity in deep-sea sponges. They show that sponge microbial abundance status, geographic distance, sponge phylogeny and the physical-biogeochemical environment drive microbiome composition, in descending order of relevance. The uniqueness of each deep-sea sponge ground stresses the need for their strategic preservation.
NATURE COMMUNICATIONS
(2022)
Correction
Multidisciplinary Sciences
Kathrin Busch, Beate M. Slaby, Wolfgang Bach, Antje Boetius, Ina Clefsen, Ana Colaco, Marie Creemers, Javier Cristobo, Luisa Federwisch, Andre Franke, Asimenia Gavriilidou, Andrea Hethke, Ellen Kenchington, Furu Mienis, Sadie Mills, Ana Riesgo, Pilar Rios, Emyr Martyn Roberts, Detmer Sipkema, Lucia Pita, Peter J. Schupp, Joana Xavier, Hans Tore Rapp, Ute Hentschel
NATURE COMMUNICATIONS
(2022)
Article
Marine & Freshwater Biology
Pierre Foucault, Alison Gallet, Charlotte Duval, Benjamin Marie, Sebastien Duperron
Summary: This study investigates the response of gut microbiota and the metabolome of a model fish species to exposure to cyanobacterial blooms. The results indicate that even short-lived blooms can cause significant changes in microbiota composition and holobiont metabolome. The study highlights the relevance of multi-omics approaches in ecotoxicology research.
AQUATIC TOXICOLOGY
(2022)
Article
Microbiology
Johanne Aube, Marie-Anne Cambon-Bonavita, Lourdes Velo-Suarez, Valerie Cueff-Gauchard, Francoise Lesongeur, Marion Gueganton, Lucile Durand, Julie Reveillaud
Summary: The study investigated the genomes of the foregut and midgut of the vent shrimp Rimicaris exoculata in deep-sea hydrothermal vent areas. It identified new metagenome-assembled genomes (MAGs) and revealed the crucial roles of these symbionts in host defense and adaptation.
Article
Environmental Sciences
Renato Bruno, Celine Boidin-Wichlacz, Oleg Melnyk, Daniela Zeppilli, Celine Landon, Frederic Thomas, Marie-Anne Cambon, Mickael Lafond, Kamel Mabrouk, Francois Massol, Stephane Hourdez, Marc Maresca, Didier Jollivet, Aurelie Tasiemski
Summary: Antimicrobial peptides (AMPs), such as Alvinellacin (ALV), arenicin (ARE) and polaricin (POL), play a crucial role in the external immunity of animals and provide a model for studying the impact of the environment on the diversification and evolution of immune effectors. These AMPs possess a conserved BRICHOS domain in their precursor molecule, despite significant structural and amino acid diversification in the C-terminal portion. The study demonstrates that the bactericidal activity of these AMPs is optimal against bacteria found in their respective habitats, and the presence of disulfide bridges enhances their effectiveness in fluctuating environmental conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Microbiology
Anais Masse, Juliette Detang, Charlotte Duval, Sebastien Duperron, Anthony C. C. Woo, Isabelle Domart-Coulon
Summary: This study analyzed the composition and plasticity of bacterial communities associated with the green algae Ostreobium in response to varying salinities. The results showed that the host genotype of Ostreobium determined the structure of the bacterial community, with different genotypes having different dominant bacterial strains. The abundance of Rhizobiales also shifted in response to an increase in salinity. Additionally, a small core microbiota was found across all salinities, suggesting an important functional role in the coral holobiont.
Article
Environmental Sciences
Pierre Methou, Valerie Cueff-Gauchard, Loic N. Michel, Nicolas Gayet, Florence Pradillon, Marie-Anne Cambon-Bonavita
Summary: The study on shrimps in hydrothermal vent ecosystems shows that these shrimps do not rely on chemosynthetic epibionts as their main source of nutrition. However, they have specific bacterial communities in their digestive systems, which may have shared ancestry with other crustaceans in marine and terrestrial ecosystems and have been evolutionarily conserved.
ENVIRONMENTAL MICROBIOLOGY REPORTS
(2023)
Article
Ecology
Sebastien Halary, Sebastien Duperron, Sandra Kim Tiam, Charlotte Duval, Cecile Bernard, Benjamin Marie
Summary: Cyanobacteria play a significant role in global primary production but can also cause harmful events called blooms. However, the study of genetic diversity in bloom development and the ecology of harmful cyanobacteria has been underestimated. A comparative study of Aphanizomenon gracile revealed extensive heterogeneity in gene contents, suggesting the potential for essential metabolite exchanges among individuals in a bloom.
ISME COMMUNICATIONS
(2023)
Article
Microbiology
Sebastien Duperron, Pierre Foucault, Charlotte Duval, Midoli Goto, Alison Gallet, Simon Colas, Benjamin Marie
Summary: Massive sequencing of the 16S rRNA gene is a standard method for describing and comparing microbial communities. Nontargeted metabolomics can complement this by providing information on community functioning. This study validates a method of extracting metabolites followed by DNA extraction, which allows for the combination of 16S rRNA sequencing with metabolome characterization from a single sample.
FEMS MICROBIOLOGY LETTERS
(2023)
