Article
Marine & Freshwater Biology
Xiaotian Luo, Jie Huang, Honggang Ma, Yujie Liu, Xiaoteng Lu, William A. Bourland
Summary: In contrast to most hypotrich ciliates that inhabit the benthos, only a few species of the genus Hypotrichidium have adapted to a planktonic lifestyle. This study investigates the interphase morphology and ontogenetic process of Hypotrichidium tisiae, redefining its ciliary pattern. The morphogenetic features and phylogenetic analyses support the assignment of Hypotrichidium to the family Spirofilidae within Postoralida, as well as the establishment of separate families for slender tubicolous spirofilids and highly helical spirofilids.
MARINE LIFE SCIENCE & TECHNOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Ilenia Clavero-Camacho, Carolina Cantalapiedra-Navarrete, Antonio Archidona-Yuste, Pablo Castillo, Juan Emilio Palomares-Rius
Summary: Paratylenchus spp. are vermiform organisms parasitizing a variety of plants worldwide, some of which are considered pathogenic in crops. The difficulty in identification to species level is due to conserved morphology, similarity of morphometric characters, and co-occurrence of multiple species. Integrative taxonomic approach using morphological, morphometrical, and molecular data is crucial for accurate identification of Paratylenchus species.
Article
Evolutionary Biology
James S. Evans, Patrick M. Erwin, Hendra F. Sihaloho, Susanna Lopez-Legentil
Summary: This study analyzed color morphs, genetic lineages, and symbiotic microbial communities of the colonial ascidian D. bermudensis, finding that two distinct genetic lineages corresponded to unique color morphs and microbial communities, indicating that two different species coexist under the same scientific name. The study highlights the utility of symbiont profiling in resolving the taxonomic status of phenotypically variable ascidian species.
Article
Biochemistry & Molecular Biology
Anastasija Zaiko, Paul Greenfield, Cathryn Abbott, Ulla von Ammon, Jaret Bilewitch, Michael Bunce, Melania E. Cristescu, Anthony Chariton, Eddy Dowle, Jonathan Geller, Alba Ardura Gutierrez, Mehrdad Hajibabaei, Emmet Haggard, Graeme J. Inglis, Shane D. Lavery, Aurelija Samuiloviene, Tiffany Simpson, Michael Stat, Sarah Stephenson, Judy Sutherland, Vibha Thakur, Kristen Westfall, Susanna A. Wood, Michael Wright, Guang Zhang, Xavier Pochon
Summary: Advances in high-throughput sequencing technology are changing marine monitoring by enabling rapid and accurate detection of species in complex samples. An international experiment showed that while there was variation in results from different laboratories, the primary signal in the data was consistent, with samples grouping by geographical origin. Post hoc data clean-up, such as removing low-quality samples, improved sample classification accuracy significantly.
MOLECULAR ECOLOGY RESOURCES
(2022)
Article
Food Science & Technology
Niki Mougiou, Antiopi Tsoureki, Spyros Didos, Ioanna Bouzouka, Sofia Michailidou, Anagnostis Argiriou
Summary: The analysis of table olives microbiome using next-generation sequencing has provided valuable information about the microbial community composition of this popular fermented food. This study used 16S and 18S rRNA sequencing to evaluate the microbial communities of table olives from five Greek popular cultivars, fermented by Greek or Spanish style. The results showed that different curing and fermentation methods had an impact on the microbial composition and biochemical properties of the olives.
Article
Ecology
Eliana Zelada-Mazmela, Lorenzo E. Reyes-Flores, Julissa J. Sanchez-Velasquez, Claudia Ingar, Luis E. Santos-Rojas
Summary: This study provides a comprehensive phylogeographical analysis of the gastropod species Thaisella chocolata along the Southeast Pacific coastal region. The results show high genetic diversity but lack of population differentiation within the survey area. The study also reveals two ancestral demographic expansions in the history of the species.
ECOLOGY AND EVOLUTION
(2022)
Article
Soil Science
Ilonka C. Engelhardt, Pascal A. Niklaus, Florian Bizouard, David Bru, Marie -Christine Breuil, Nadine Rouard, Arnaud Mounier, Laurent Philippot, Romain L. Barnard
Summary: This study found that precipitation history has an impact on the microbial community's response to rewetting, which is related to the nitrogen status. Regardless of precipitation or nitrogen input history, active bacteria showed a small shift in community composition within 1 hour of rewetting, but did not change further for the remaining 28 hours analyzed. Active fungi did not respond to rewetting within 29 hours. These findings are important for understanding the short-term response of soil microbial communities and their effects on food web stability and soil biogeochemical cycling.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Zoology
Hirokazu Abe, Waka Sato-Okoshi
Summary: Planktonic larvae of spionid polychaetes are commonly found in coastal meroplankton worldwide. This study in northeastern Japan analyzed the morphology of spionid larvae using adult and larval gene sequences, successfully distinguishing between species. Morphologically, there were noticeable differences in color, number of eyes, body shape, and pigmentation among different genera or species. Matching sequences were found between adult and larval stages of 27 species.
Article
Geosciences, Multidisciplinary
Tiago de Oliveira Santos, Felipe Jose Cury Fracetto, Valdomiro Severino de Souza Junior, Jose Coelho de Araujo Filho, Mario Andrade Lira Junior, Jose Petronio Mendes Junior, Marcos Siqueira Neto, Yure Romero Oliveira da Silva, Felipe Martins do Rego Barros, Giselle Gomes Monteiro Fracetto
Summary: Overexploitation of natural forest resources in the tropical semiarid region of Brazil leads to soil degradation, reduction in microbial and plant biomass, and loss of C and N from soils. This study found that degraded soils had significantly lower C and N stocks, abundance and activity of total bacteria and fungi, and decreased abundance of diazotrophic and phosphorus-mineralizing bacteria compared to preserved or partially degraded soils. However, the abundance of total bacteria and fungi genes and glomalin content remained unchanged. The alkaline phosphatase activity indicated that mineralizing microorganisms can still make phosphorus constantly available in soils without vegetation cover.
Article
Environmental Sciences
Blaire M. Padayhag, Michael Angelou L. Nada, Jake Ivan P. Baquiran, Marilou P. Sison-Mangus, Maria Lourdes San Diego-McGlone, Patrick C. Cabaitan, Cecilia Conaco
Summary: This study found that the microbial biofilm communities near mariculture areas can affect the settlement of coral larvae. The biofilm farthest from the mariculture area had a higher effectiveness in inducing the settlement of Acropora tenuis larvae. These biofilms were characterized by a greater proportion of crustose coralline algae and gammaproteobacterial taxa, while biofilms closer to the mariculture zone had a higher proportion of cyanobacteria and no crustose coralline algae. These findings suggest that nutrient enrichment from mariculture activities can alter the composition of biofilm-associated microbiome and indirectly affect coral larval settlement.
MARINE POLLUTION BULLETIN
(2023)
Article
Zoology
Martin Blaha, Jiri Patoka, Bella Japoshvili, Marek Let, Milos Buric, Antonin Kouba, Levan Mumladze
Summary: The phylogeny of European crayfish fauna, especially in Eastern Europe, is still not fully resolved. A study focusing on the endemic crayfish Astacus colchicus in Georgia found a unique phylogenetic position for this species, indicating its independent status from A. astacus. Molecular analyses revealed significant genetic divergence between A. colchicus and related species, suggesting potential distinct species status.
INTEGRATIVE ZOOLOGY
(2021)
Article
Environmental Sciences
R. G. Bulgarelli, M. F. A. Leite, M. De Hollander, P. Mazzafera, S. A. L. Andrade, E. E. Kuramae
Summary: The availability of soil phosphorus can affect plant growth, root-soil interactions, and rhizosphere microbial community composition. This study investigated the rhizosphere microbial communities of 24 species of eucalypts under low or sufficient soil phosphorus availability. It was found that eucalypt species identity was the main factor determining the composition of the rhizosphere microbial community, while the effect of phosphorus availability varied among species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biotechnology & Applied Microbiology
Julia A. Gustavsen, Curtis A. Suttle
Summary: This study revealed that the composition of marine viral assemblages undergoes significant changes over time and is laggedly correlated with the resemblance of potential hosts, indicating the influence of viruses on host communities. The dominant clusters of phylogenetically related viruses shift over time, reflecting ecological dynamics within these clusters. The temporal shuffling of viral genotypes primarily occurs within a few subsets of related individuals, suggesting a common structure in natural viral assemblages.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Plant Sciences
Ilenia Clavero-Camacho, Juan Emilio Palomares-Rius, Carolina Cantalapiedra-Navarrete, Guillermo Leon-Ropero, Jorge Martin-Barbarroja, Antonio Archidona-Yuste, Pablo Castillo
Summary: This study in Spain utilized integrative taxonomical approaches to diagnose pin nematodes, identifying 18 species, including a new species. The research found that about 90% of the genus' species are located in Southern Spain, suggesting it as a potential hotspot of biodiversity.
Article
Biodiversity Conservation
Keity S. Nishikawa, Mariana Negri, Fernando L. Mantelatto
Summary: Studies on genetic and morphological variability of Clibanarius antillensis along its distribution did not show any population structure, possibly due to high dispersal potential of the species and lack of barriers to gene flow. Additionally, high genetic diversity was observed, mainly for the COI gene, suggesting that the species has been experiencing constant expansion in the last 700,000 years without any genetic bottleneck.
Article
Ecology
S. E. Ruff, J. Felden, H. R. Gruber-Vodicka, Y. Marcon, K. Knittel, A. Ramette, A. Boetius
Article
Multidisciplinary Sciences
Oliver Jaeckle, Brandon K. B. Seah, Malin Tietjen, Nikolaus Leisch, Manuel Liebeke, Manuel Kleiner, Jasmine S. Berg, Harald R. Gruber-Vodicka
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2019)
Article
Microbiology
Brandon K. B. Seah, Chakkiath Paul Antony, Bruno Huettel, Jan Zarzycki, Lennart Schada von Borzyskowski, Tobias J. Erb, Angela Kouris, Manuel Kleiner, Manuel Liebeke, Nicole Dubilier, Harald R. Gruber-Vodicka
Article
Ecology
Adrien Assie, Nikolaus Leisch, Dimitri Meier, Harald Gruber-Vodicka, Halina E. Tegetmeyer, Anke Meyerdierks, Manuel Kleiner, Tjorven Hinzke, Samantha Joye, Matthew Saxton, Nicole Dubilier, Jillian M. Petersen
Article
Microbiology
Samuel A. Vohsen, Kaitlin E. Anderson, Andrea M. Gade, Harald R. Gruber-Vodicka, Richard P. Dannenberg, Eslam O. Osman, Nicole Dubilier, Charles R. Fisher, Iliana B. Baums
Article
Zoology
Jorg A. Ott, Philipp Prots
Summary: A new genus of marine Stilbonematinae is discovered from the Pacific coast of the United States, living in sulfidic sediment and near the roots of surfgrass. Their ectosymbiotic coat is of a new type, consisting of rod-shaped bacteria densely attached to the host cuticle. This is the first report of this symbiotic nematode subfamily from the US West Coast.
Article
Multidisciplinary Sciences
Benedikt Geier, Janina Oetjen, Bernhard Ruthensteiner, Maxim Polikarpov, Harald R. Gruber-Vodicka, Manuel Liebeke
Summary: We developed a new method CHEMHIST to connect anatomical structure and metabolic function in millimeter-sized symbiotic animals, addressing the limited understanding of metabolic interactions between these animals. By combining MSI and micro-CT, we successfully correlated the distribution of metabolites with the 3D histology of the animals, providing a methodological groundwork for understanding the roles of these symbiotic animals in ecosystem functioning.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Multidisciplinary Sciences
Wiebke Mohr, Nadine Lehnen, Soeren Ahmerkamp, Hannah K. Marchant, Jon S. Graf, Bernhard Tschitschko, Pelin Yilmaz, Sten Littmann, Harald Gruber-Vodicka, Nikolaus Leisch, Miriam Weber, Christian Lott, Carsten J. Schubert, Jana Milucka, Marcel M. M. Kuypers
Summary: Symbiotic N-2-fixing microorganisms play a crucial role in nitrogen assimilation by eukaryotes in nitrogen-limited environments. The symbiotic relationship between 'Candidatus Celerinatantimonas neptuna' and its host Posidonia oceanica allows highly productive seagrass meadows to thrive in the Mediterranean Sea. This symbiosis is similar to that of terrestrial N-2-fixing plant symbioses and may have enabled flowering plants to thrive in nitrogen-poor marine habitats.
Article
Ecology
E. Maggie Sogin, Dolma Michellod, Harald Gruber-Vodicka, Patric Bourceau, Benedikt Geier, Dimitri Meier, Michael Seidel, Soeren Ahmerkamp, Sina Schorn, Grace D'Angelo, Gabriele Procaccini, Nicole Dubilier, Manuel Liebeke
Summary: The accumulation of soluble sugars in seagrass rhizospheres is due to the inhibition of microbial consumption by plant phenolic compounds, providing an explanation for seagrass meadows as important carbon sinks.
NATURE ECOLOGY & EVOLUTION
(2022)
Article
Biochemistry & Molecular Biology
Sebastian R. Najle, Xavier Grau-Bove, Anamaria Elek, Cristina Navarrete, Damiano Cianferoni, Cristina Chiva, Didac Canas-Armenteros, Arrate Mallabiabarrena, Kai Kamm, Eduard Sabido, Harald Gruber-Vodicka, Bernd Schierwater, Luis Serrano, Arnau Sebe-Pedros
Summary: The assembly of neuronal and other major cell programs occurred early in animal evolution. Through studying non-bilaterians like placozoans, we can reconstruct this process and understand the affinities of peptidergic cells. Our findings show that key neuronal developmental and effector gene modules evolved before cnidarian/bilaterian neurons, highlighting the importance of paracrine cell signaling.
Article
Microbiology
Harald R. Gruber-Vodicka, Brandon K. B. Seah, Elmar Pruesse