Microbial Ecology最新文献

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Land-use legacies shape soil microbial communities and nutrient cycling functions in rotational shifting cultivation fields of Northern Thailand. 泰国北部轮作农田土地利用遗产影响土壤微生物群落和养分循环功能。
IF 4 3区 生物学
Microbial Ecology Pub Date : 2025-10-02 DOI: 10.1007/s00248-025-02598-x
Noppol Arunrat, Wuttichai Mhuantong, Sukanya Sereenonchai
{"title":"Land-use legacies shape soil microbial communities and nutrient cycling functions in rotational shifting cultivation fields of Northern Thailand.","authors":"Noppol Arunrat, Wuttichai Mhuantong, Sukanya Sereenonchai","doi":"10.1007/s00248-025-02598-x","DOIUrl":"10.1007/s00248-025-02598-x","url":null,"abstract":"<p><p>How land-use history-particularly in contrasting systems such as rotational shifting cultivation (RSC) and continuously fallow (CF) fields-influences soil microbial communities and their biogeochemical functions remains insufficiently understood. In this study, shotgun metagenomic sequencing was used to compare the taxonomic composition and functional gene profiles of soils under RSC and CF systems in Northern Thailand. The results revealed distinct microbial assemblages and metabolic potentials shaped by land-use legacy. RSC soils were characterized by a higher abundance of nitrifiers and nitrogen-fixing taxa, including Nitrosocosmicus and Streptomyces, along with enriched genes involved in nitrification (e.g., amoC_B, nxrB) and nitrogen fixation (nifD, nifK), reflecting an enhanced potential for nitrogen acquisition and retention. In contrast, CF soils showed enrichment in Bradyrhizobium, Halobaculum, and Russula, and exhibited higher expression of denitrification-related genes (norB, narJ), suggesting increased nitrogen loss via gaseous emissions. Functional genes related to phosphate metabolism (phoX, glpQ) and nutrient signal transduction were more abundant in RSC soils, indicating active nutrient cycling in response to recent disturbance. Conversely, CF soils demonstrated broader metabolic capabilities, including genes for sulfur oxidation and redox regulation, suggesting microbial adaptation to more stable but nutrient-limited conditions. These findings demonstrate that land-use legacies strongly influence microbial composition and function, with important implications for nutrient cycling and soil fertility restoration in shifting cultivation landscapes.</p>","PeriodicalId":18708,"journal":{"name":"Microbial Ecology","volume":"88 1","pages":"102"},"PeriodicalIF":4.0,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12491100/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145206886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Production Systems and Age Influence Fecal Mycobiota Diversity and Composition in Swine. 生产系统和年龄对猪粪便菌群多样性和组成的影响。
IF 4 3区 生物学
Microbial Ecology Pub Date : 2025-10-02 DOI: 10.1007/s00248-025-02614-0
Carolyn M Scott, Devin B Holman, Katherine E Gzyl, Angela Ibe, Ahmad Esmaeili Taheri
{"title":"Production Systems and Age Influence Fecal Mycobiota Diversity and Composition in Swine.","authors":"Carolyn M Scott, Devin B Holman, Katherine E Gzyl, Angela Ibe, Ahmad Esmaeili Taheri","doi":"10.1007/s00248-025-02614-0","DOIUrl":"10.1007/s00248-025-02614-0","url":null,"abstract":"<p><p>The gut microbiome is an important factor in animal health and can be influenced by factors such as age, diet, stress, environmental conditions, and farming practices. Bacterial communities of the gut microbiome in many species have been extensively studied, but research on the fungal microbiota remains limited and underrepresented in the literature. The objective of this study was to characterize the fecal mycobiota of swine raised under two different production systems: outdoor pasture-based or conventional indoor systems. Fecal samples from nursery, growing-finishing, and sow pigs from both farming systems were collected, and the mycobiota was profiled using PCR amplification and sequencing of the universal fungal internal transcribed spacer 1 (ITS1) region. A significant difference in fungal community structure was observed between the conventionally raised and pasture-raised pigs, as well as among all three production phases. Four species, Arthrographis kalrae, Enterocarpus grenotii, Pseudallescheria angusta, and Sagenomella oligospora, were differentially abundant between the two farms, all of which had higher relative abundance in the pasture-raised pigs. Additionally, pasture-raised pigs hosted a more diverse fungal community with higher species richness in their gastrointestinal tract. In summary, farming practices and pig age influenced the pig fecal mycobiota.</p>","PeriodicalId":18708,"journal":{"name":"Microbial Ecology","volume":"88 1","pages":"104"},"PeriodicalIF":4.0,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12491113/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145206900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nutritional Status and Fecal Microbiota in School Children from the Galapagos and the Andean Region. 加拉帕戈斯和安第斯地区学龄儿童的营养状况和粪便微生物群。
IF 4 3区 生物学
Microbial Ecology Pub Date : 2025-10-02 DOI: 10.1007/s00248-025-02608-y
Paul Cárdenas, Valeria Carpio-Arias, Melanie Chávez, Andrea Denisse Benítez, Alexis D Baldeón, Andrés Suárez-Jaramillo, Marco Fornasini, Julieta Robles, Gabriela Loza, Manuel E Baldeón
{"title":"Nutritional Status and Fecal Microbiota in School Children from the Galapagos and the Andean Region.","authors":"Paul Cárdenas, Valeria Carpio-Arias, Melanie Chávez, Andrea Denisse Benítez, Alexis D Baldeón, Andrés Suárez-Jaramillo, Marco Fornasini, Julieta Robles, Gabriela Loza, Manuel E Baldeón","doi":"10.1007/s00248-025-02608-y","DOIUrl":"10.1007/s00248-025-02608-y","url":null,"abstract":"<p><p>Schoolchildren from the Galapagos and the Andean region present the worst indices of malnutrition in Ecuador and are exposed to distinctive food and water insecurity. We compared the nutritional status, the fecal microbiota composition of schoolchildren from the Galapagos (n = 51; 8.88 ± 2.15 years) and the Andean region (n = 114; 8.69 ± 1.83 years). Children had a nutritional evaluation and provided fecal samples for microbiota analysis by 16S rRNA gene sequencing. Excess weight was more prevalent in Galapagos (41.18%) than in the Andes (24.5%). Additionally, intestinal parasitosis was more prevalent in children from the Andes (76.4%) than in Galapagos (13.0%). Species richness was lower in fecal samples of children from the Galapagos than those from the Andes (Chao1 index p = 0.001). Beta-diversity metrics also showed significant differences between these samples. Bacteroidota and Proteobacteria were enriched in the microbiota of Galapagos children, whereas Firmicutes A and Cyanobacteria were enriched in the Andean children. At the genus level, the top 3 genera present in schoolchildren from the Galapagos were Bacteroides, Phocaeicola, and Escherichia, while in children from the Andes were Cryptobacteroides, Prevotella, and Clostridium. Cyanobacteria were inversely associated with BMI z-score in the Galapagos region (q = 0.009), while, Firmicutes D had a direct relationship with BMI z-score in children from the Andes (q = 0.05). At the genus level, only Butyrivibrio was inversely associated with BMI z-score in children of the Galapagos (q = 0.04). We conclude that schoolchildren with different degrees of malnutrition from two distinct geographical areas have dissimilar fecal microbiota characteristics.</p>","PeriodicalId":18708,"journal":{"name":"Microbial Ecology","volume":"88 1","pages":"103"},"PeriodicalIF":4.0,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12491103/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145206867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Population and Spatial Features Impact the Gut Phageome-Bacteriome Structure and Interactions in a Mammal Species Living in Fragmented Habitats. 种群和空间特征对碎片化栖息地哺乳动物肠道噬菌体-细菌组结构和相互作用的影响
IF 4 3区 生物学
Microbial Ecology Pub Date : 2025-09-30 DOI: 10.1007/s00248-025-02594-1
Huayao Gao, Xiaofan Ma, Ming Lu, Yalun Wang, Hanqing Liu, Xiaoyu Hu, Yonggang Nie
{"title":"Population and Spatial Features Impact the Gut Phageome-Bacteriome Structure and Interactions in a Mammal Species Living in Fragmented Habitats.","authors":"Huayao Gao, Xiaofan Ma, Ming Lu, Yalun Wang, Hanqing Liu, Xiaoyu Hu, Yonggang Nie","doi":"10.1007/s00248-025-02594-1","DOIUrl":"10.1007/s00248-025-02594-1","url":null,"abstract":"<p><p>The mammalian gut microbiome composition has been shown to promote host adaptation to ecological environments. However, the variation in the gut phageome and bacteriome composition at both the population level and spatial scale in wild animals has not been well investigated. Here, we used viral metagenomes and 16S rRNA gene sequencing to explore how these characteristics affect the gut microbiome of Przewalski's gazelle, an endangered group-living ungulate that lives in several fragmented habitats due to anthropogenic activities. The results revealed that population and habitat geographic characteristics collectively explained much more of the variation in phageome and bacteriome compositions than did host-associated factors. Both gut phage and bacterial diversity were positively associated with population size, and differentiation in gut microbiome diversity increased with geographic distance among populations. Additionally, the gut phage and the bacterial hosts displayed similar patterns in composition across habitats, indicating that the microbiome may exhibit complex interactions in response to the environment. For the first time, our study reveals the important roles of population and habitat geographic characteristics in driving spatial patterns of gut microbiome structures in wild animals and highlights the interactions between gut phages and the bacteriome in adaptation to living environments under the influence of human disturbances.</p>","PeriodicalId":18708,"journal":{"name":"Microbial Ecology","volume":"88 1","pages":"98"},"PeriodicalIF":4.0,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12484350/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145200403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evolutionary and Ecological Drivers of Gut Microbiota in Wild Rodent Species from the Yucatán Peninsula. Yucatán半岛野生啮齿动物肠道菌群的进化和生态驱动因素。
IF 4 3区 生物学
Microbial Ecology Pub Date : 2025-09-30 DOI: 10.1007/s00248-025-02603-3
Gabriela Borja-Martínez, Arit de León-Lorenzana, Alfredo Yanez-Montalvo, Giovani Hernández-Canchola, Luisa I Falcón, Ella Vázquez-Domínguez
{"title":"Evolutionary and Ecological Drivers of Gut Microbiota in Wild Rodent Species from the Yucatán Peninsula.","authors":"Gabriela Borja-Martínez, Arit de León-Lorenzana, Alfredo Yanez-Montalvo, Giovani Hernández-Canchola, Luisa I Falcón, Ella Vázquez-Domínguez","doi":"10.1007/s00248-025-02603-3","DOIUrl":"10.1007/s00248-025-02603-3","url":null,"abstract":"<p><p>The host-microbiome association is considered a coevolutionary process, in which the microbiome provides important functions for host development, physiology and health. However, the ecological and evolutionary forces shaping the diversity and structure of the bacterial communities that form the microbiome are still being elucidated. We assessed the composition of gut microbiota in six rodent species from three geographic regions across the Yucatán peninsula, Mexico. We evaluated the contribution of host species identity, phylogenetic relationships, and geography to the rodents' gut microbiota, using 16S rRNA V4 sequences. We performed a comprehensive set of analytical approaches, including Hill numbers, machine learning, and phylogenetic comparative frameworks. Our results show that phylosymbiosis is one of the main mechanisms driving microbiota dissimilitude across species and specific microbiota diversity traits. Additionally, the microbial pool in each region was geographically differentiated, shaped by the rodent community ensemble, while ecological filtering rendered a microbial pool characteristic of each species. The environment also played a significant role for some species like Heteromys gaumeri, while dietary habits showed a stronger signal for Oryzomys couesi. Rodents with more specialized habits like Ototylomys phyllotis (semi-arboreal, folivorous) had higher bacterial diversity. The abundance of eight bacterial families determined key differences of the gut microbiota which, in addition to phylogeny and geography, are associated with distinct diet and metabolic functions among rodents. Distinct metabolic functions were related, among others, to toxins metabolism and digestion of complex food components. Overall findings show that both evolutionary and ecological drivers influence these rodents gut microbial structure and composition.</p>","PeriodicalId":18708,"journal":{"name":"Microbial Ecology","volume":"88 1","pages":"100"},"PeriodicalIF":4.0,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12484284/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145200379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of Tebuconazole On the Development and Symbiotic Microbial Communities of Pardosa Pseudoannulata. 戊康唑对假环伞生长发育及共生微生物群落的影响。
IF 4 3区 生物学
Microbial Ecology Pub Date : 2025-09-30 DOI: 10.1007/s00248-025-02600-6
Peijie Cheng, Fengjie Liu, Lei Li, Shuhan Wu, Wenjing Xiao, Qiong Zong, Tao Liu, Yu Peng
{"title":"Impact of Tebuconazole On the Development and Symbiotic Microbial Communities of Pardosa Pseudoannulata.","authors":"Peijie Cheng, Fengjie Liu, Lei Li, Shuhan Wu, Wenjing Xiao, Qiong Zong, Tao Liu, Yu Peng","doi":"10.1007/s00248-025-02600-6","DOIUrl":"10.1007/s00248-025-02600-6","url":null,"abstract":"<p><p>Tebuconazole is a widely used triazole fungicide to control fungal diseases. While there have been reported side effects on non-target arthropods, its ecological risks to natural enemies remain poorly understood. In this study, we evaluated the developmental toxicity and symbiotic microorganism responses of the wolf spider Pardosa pseudoannulata, an important predator in rice ecosystems, following exposure to tebuconazole. The results indicated that tebuconazole did not significantly increase the mortality rate of spiderlings; however, it did lead to a significant decrease in spiderling body weight, as well as the length and width of the carapace. High-throughput sequencing of the 16S rRNA gene V3-V4 regions and the ITS region revealed that tebuconazole significantly reduced bacterial diversity indices in the short term, with a gradual recovery over time. In contrast, the impact on the fungal community was continuous and irreversible, with a significant decrease in the Shannon index observed after 15 days. At the genus level, the relative abundances of Cupriavidus and Staphylococcus in the bacterial community decreased significantly after tebuconazole exposure, while Stenotrophomonas increased. In the fungal community, Fungi_gen_Incertae_sedis decreased significantly, and Simplicillium increased. Our findings highlight the ecological risks of fungicide exposure to beneficial predators and underscore the importance of considering symbiotic microbiota in pesticide risk assessments.</p>","PeriodicalId":18708,"journal":{"name":"Microbial Ecology","volume":"88 1","pages":"97"},"PeriodicalIF":4.0,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12484356/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145200426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aerobiology and Environmental Zonation in Gypsum Caves: A Comparative Study of Culturing and NGS Approaches. 石膏洞穴的空气生物学和环境区划:培养和NGS方法的比较研究。
IF 4 3区 生物学
Microbial Ecology Pub Date : 2025-09-30 DOI: 10.1007/s00248-025-02591-4
Tamara Martin-Pozas, Angel Fernandez-Cortes, Jose Maria Calaforra, Sergio Sanchez-Moral, Cesareo Saiz-Jimenez, Valme Jurado
{"title":"Aerobiology and Environmental Zonation in Gypsum Caves: A Comparative Study of Culturing and NGS Approaches.","authors":"Tamara Martin-Pozas, Angel Fernandez-Cortes, Jose Maria Calaforra, Sergio Sanchez-Moral, Cesareo Saiz-Jimenez, Valme Jurado","doi":"10.1007/s00248-025-02591-4","DOIUrl":"10.1007/s00248-025-02591-4","url":null,"abstract":"<p><p>Classical aerobiological studies commonly use high-volume air samplers to quantify and identify cultivable airborne bacteria and fungi. However, this approach introduces a significant bias, as it overlooks the non-cultivable fraction, which likely constitutes a major component of the airborne microbiome. The advent of next-generation sequencing (NGS) has addressed this limitation, enabling a more comprehensive characterization of the cave aerobiome. This study analyzes both cultivable and non-cultivable airborne bacteria from Covadura and C3 caves, located in the Gypsum Karst of Sorbas (SE Spain). A total of 24 bacterial genera were identified using culture-based methods, whereas NGS revealed 749 genera. Culture-based methods using the surface air system (SAS) predominantly recovered Gram-positive spore-forming bacteria from the phyla Bacillota and Actinomycetota, which were largely absent or present in low relative abundances in the NGS datasets. In contrast, NGS revealed a broader diversity, including numerous Gram-negative and rare airborne bacteria not detected by culture. The NGS results from airborne samples showed greater similarity to the microbial communities found in cave biofilms and sediments, suggesting that a portion of airborne bacteria originates from within the cave and is influenced by microclimatic conditions such as ventilation and air stagnation. Although the short-read sequencing approach used in this study has limitations, such as reduced taxonomic resolution compared to the culture-based approach, it remains the most effective tool for capturing the diversity and ecological patterns of airborne microorganisms. The integration of gas tracers and other environmental data allowed the identification of zones within the cave with different ventilation patterns and degrees of isolation, which corresponded to different spatial distributions of airborne bacteria. Our findings underscore that reliable aerobiological studies in caves require the combination of non-culture dependent-based sequencing approaches and environmental monitoring to fully understand the origin, diversity, and ecological dynamics of airborne microbial communities.</p>","PeriodicalId":18708,"journal":{"name":"Microbial Ecology","volume":"88 1","pages":"95"},"PeriodicalIF":4.0,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12484262/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145200444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bacteria from the Amphibian Skin Inhibit the Growth of Phytopathogenic Fungi and Control Postharvest Rots. 两栖动物皮肤细菌抑制植物病原真菌生长及控制采后腐烂。
IF 4 3区 生物学
Microbial Ecology Pub Date : 2025-09-30 DOI: 10.1007/s00248-025-02611-3
Adriana J Gutiérrez-Pavón, Martina María Pereyra, Florencia Isabel Chacón, Elizabeth Monroy-Morales, Eria A Rebollar, Julián Rafael Dib, Mario Serrano, Yordan J Romero-Contreras
{"title":"Bacteria from the Amphibian Skin Inhibit the Growth of Phytopathogenic Fungi and Control Postharvest Rots.","authors":"Adriana J Gutiérrez-Pavón, Martina María Pereyra, Florencia Isabel Chacón, Elizabeth Monroy-Morales, Eria A Rebollar, Julián Rafael Dib, Mario Serrano, Yordan J Romero-Contreras","doi":"10.1007/s00248-025-02611-3","DOIUrl":"10.1007/s00248-025-02611-3","url":null,"abstract":"<p><p>Postharvest diseases caused by phytopathogenic fungi represent one of the main challenges in the agricultural industry, leading to significant losses in fruit production. Although chemical treatments have been widely used for the control of these pathogens, the emergence of resistant strains and concerns regarding food safety and environmental impact have driven the search for novel effective and eco-friendly alternatives, such as the use of biological control agents (BCAs). Previously, we demonstrated that bacteria isolated from frog skin inhibit the growth of the phytopathogenic fungus Botrytis cinerea. Based on these findings, in this study we aimed to investigate the biocontrol potential of three bacterial isolates obtained from the skin of the frog Craugastor fitzingeri. Dual culture assays showed that these bacteria strongly inhibited the mycelial growth of several postharvest fungal phytopathogens, including Penicillium digitatum, P. italicum, Alternaria alternata, Aspergillus niger, and Alternaria solani. This antagonistic activity was further confirmed through assays using bacterial filtrates (BFs) and volatile organic compounds (VOCs), effectively delaying or suppressing fungal development under in vitro conditions. Additionally, in vivo experiments on citrus fruits, tomato, and blueberry demonstrated that treatments with bacterial cell suspensions or BFs significantly reduced disease incidence caused by P. digitatum, A. alternata, and B. cinerea. However, no inhibitory effects were observed against Geotrichum citri-aurantii, Fusarium sp., Fusarium oxysporum, and Phytophthora capsici, suggesting a degree of specificity. Our findings highlight the potential of frog skin-associated bacteria as a novel source of BCAs for the sustainable management of postharvest diseases in fruits.</p>","PeriodicalId":18708,"journal":{"name":"Microbial Ecology","volume":"88 1","pages":"101"},"PeriodicalIF":4.0,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12484273/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145200455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vertical Structure and Functional Diversity of Microbial Communities in the Ross Sea, Antarctica. 南极罗斯海微生物群落的垂直结构和功能多样性。
IF 4 3区 生物学
Microbial Ecology Pub Date : 2025-09-30 DOI: 10.1007/s00248-025-02604-2
In-Cheol Yeo, Kyu-Young Shim, Jun-Oh Min, Jeong-Hoon Kim, Sun-Yong Ha, Chang-Bum Jeong
{"title":"Vertical Structure and Functional Diversity of Microbial Communities in the Ross Sea, Antarctica.","authors":"In-Cheol Yeo, Kyu-Young Shim, Jun-Oh Min, Jeong-Hoon Kim, Sun-Yong Ha, Chang-Bum Jeong","doi":"10.1007/s00248-025-02604-2","DOIUrl":"10.1007/s00248-025-02604-2","url":null,"abstract":"<p><p>The Ross Sea, Antarctica, encompasses distinct water masses, each characterized by unique physicochemical conditions influencing microbial community composition and functional diversity. This study examined microbial communities across five stations covering various water masses, including Antarctic Surface Water (AASW), Circumpolar Deep Water (CDW), and Shelf Water (SW). Despite limited horizontal variability, significant vertical structuring was observed, potentially driven by vertical microbial dispersal from surface waters. Surface communities exhibited lower alpha diversity due to abundant labile organic matter favoring fast-growing heterotrophic taxa, whereas deeper communities displayed increased microbial richness, reflecting adaptation to more refractory organic matter. Functional diversity revealed distinct depth-related patterns, with metabolic pathways associated with organic matter predominantly enriched in surface layers. Concurrently, rare taxa became more abundant with depth, emphasizing their potential role as keystone organisms in deep-ocean nutrient cycling. These findings highlight the critical role of vertical microbial connectivity and organic matter composition in shaping microbial community structure and functional specialization, contributing significantly to our understanding of microbial-mediated biogeochemical processes in polar marine ecosystems.</p>","PeriodicalId":18708,"journal":{"name":"Microbial Ecology","volume":"88 1","pages":"99"},"PeriodicalIF":4.0,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12484260/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145200420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seasonal Variations in the Microbiome of Hyalomma excavatum Ticks in Algeria. 阿尔及利亚透明眼蜱微生物群的季节变化。
IF 4 3区 生物学
Microbial Ecology Pub Date : 2025-09-30 DOI: 10.1007/s00248-025-02597-y
Salma Kaoutar Abdelali, Lynda Aissaoui, Ana Laura Cano-Argüelles, Elianne Piloto-Sardiñas, Lianet Abuin-Denis, Apolline Maitre, Angélique Foucault-Simonin, Lourdes Mateos-Hernández, Myriam Kratou, Alejandra Wu-Chuang, Dasiel Obregon, Alejandro Cabezas-Cruz
{"title":"Seasonal Variations in the Microbiome of Hyalomma excavatum Ticks in Algeria.","authors":"Salma Kaoutar Abdelali, Lynda Aissaoui, Ana Laura Cano-Argüelles, Elianne Piloto-Sardiñas, Lianet Abuin-Denis, Apolline Maitre, Angélique Foucault-Simonin, Lourdes Mateos-Hernández, Myriam Kratou, Alejandra Wu-Chuang, Dasiel Obregon, Alejandro Cabezas-Cruz","doi":"10.1007/s00248-025-02597-y","DOIUrl":"10.1007/s00248-025-02597-y","url":null,"abstract":"<p><p>Ticks are key vectors of zoonotic diseases, with their microbiomes playing a critical role in tick physiology, survival, and vector competence. This study presents the first investigation of the microbiome in Hyalomma excavatum ticks from Algeria, focusing on seasonal variations in bacterial diversity, community composition, and pathogen interactions. Using next-generation sequencing (NGS), the microbiome of 21 female ticks collected during spring, summer, and autumn was analyzed. Beta diversity analysis revealed significant seasonal shifts in microbial community structure, while alpha diversity metrics showed no significant differences in richness and evenness. Co-occurrence network analysis demonstrated seasonal shifts in microbial interactions, particularly between symbionts and pathogens, highlighting Francisella as a key taxon in tick survival and pathogen dynamics. Rickettsia presence varied by season, influencing microbial network stability. These findings underscore the ecological determinants shaping the microbiome and its potential role in pathogen transmission. Understanding seasonal microbiome shifts provides valuable insights for managing tick-borne diseases and could inform the development of targeted, season-specific vector control strategies.</p>","PeriodicalId":18708,"journal":{"name":"Microbial Ecology","volume":"88 1","pages":"96"},"PeriodicalIF":4.0,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12484380/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145200417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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