Sox genes encode a set of highly conserved transcription factors that regulate many developmental processes. In insects, the SoxB gene is the only Sox gene known to be involved in segmentation. To determine if similar mechanisms are used in other arthropods, we investigated the role of Sox genes during segmentation in the spider . While does not appear to be involved in spider segmentation, we found that the closely related gene acts as a gap gene during formation of anterior segments and is also part of the segmentation clock for development of the segment addition zone and sequential addition of opisthosomal segments. Thus, we have found that two different mechanisms of segmentation in a non-mandibulate arthropod are regulated by a SoxB gene. Our work provides new insights into the function of an important and conserved gene family, and the evolution of the regulation of segmentation in arthropods.
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http://dx.doi.org/10.7554/eLife.37567 | DOI Listing |
J Environ Manage
December 2024
State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Laboratory of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Life Science and Technology, Guangxi University, Nanning, Guangxi, 530004, China; University of Chinese Academy of Sciences, Beijing, 100049, China. Electronic address:
Sulfate reducing anaerobic ammonium oxidation (S-Anammox) is a novel biological process that involves the oxidation of NH coupled with the reduction of SO. This process has been observed under both inorganic and organic conditions; however, the nitrogen removal performance and the specific functional species in these two contexts remain poorly understood. Furthermore, the simultaneous occurrence of coupled sulfate reduction and sulfide oxidation adds complexity to the understanding of nitrogen and sulfur conversions.
View Article and Find Full Text PDFWaste Manag
January 2025
Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China. Electronic address:
Ammonia (NH) and hydrogen sulfide (HS) are the main odor components in the composting process. Controlling their emissions is very important to reduce environmental pollution and improve the quality of composting products. This study explored the effects of functional bacteria on nitrogen and sulfur metabolism in the composting process of food waste (FW) by adding ammonia-oxidizing bacteria (AOB, A treatment), sulfur-oxidizing bacteria (SOB, S treatment), and combined AOB and SOB (AS treatment), respectively.
View Article and Find Full Text PDFISME J
January 2024
University of Vienna, Centre for Microbiology and Environmental Systems Science, Division of Microbial Ecology, Djerassiplatz 1, 1030 Vienna, Austria.
Like many marine invertebrates, marine lucinid clams have an intimate relationship with beneficial sulfur-oxidizing bacteria located within specialized gill cells known as bacteriocytes. Most previous research has focused on the symbionts in the gills of these (and other) symbiotic bivalves, often assuming that the symbionts only persistently colonize the gills, at least in the adult stage. We used 16S rRNA gene sequencing and digital polymerase chain reaction with symbiont-specific primers targeting the soxB gene on the foot, mantle, visceral mass, and gills of the lucinid clam Loripes orbiculatus.
View Article and Find Full Text PDFSci Total Environ
November 2024
Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang 550001, China. Electronic address:
Microbial community diversity significantly varies with seasonality. However, little is known about seasonal variation of microbial community functions in lake sediments and their associated environmental influences. In this study, metagenomic sequencing of sediments collected from winter, summer, and autumn from Caohai Lake, Guizhou Plateau, were used to evaluate the composition and function of sediment microbial communities, the potential interactions of functional genes, key genes associated with seasons, and community assembly mechanisms.
View Article and Find Full Text PDFEnviron Pollut
October 2024
College of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China. Electronic address:
Microplastics (MPs) affect the carbon cycle in coastal salt marsh soils. However, studies on their effects on CHCl and CHBr, which are volatile halohydrocarbons that can damage the ozone layer, are lacking. In this study, indoor simulation experiments were conducted to explore the effects of MPs invasion on the source and sink characteristics of soil CHCl and CHBr.
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