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Photosynthesis in Synechocystis sp. PCC 6803 is not optimally regulated under very high CO.
Appl Microbiol Biotechnol
January 2025
Marine Biological Section, Department of Biology, University of Copenhagen, Helsingør, Denmark.
One strategy for CO mitigation is using photosynthetic microorganisms to sequester CO under high concentrations, such as in flue gases. While elevated CO levels generally promote growth, excessively high levels inhibit growth through uncertain mechanisms. This study investigated the physiology of the cyanobacterium Synechocystis sp.
View Article and Find Full Text PDFSerine Hydrolase-Catalyzed Polyol Lipids are Necessary for Rodlet Layer Formation on the Cell Wall of Entomopathogenic Fungi.
J Am Chem Soc
January 2025
College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China.
Some key secondary metabolism genes are important for driving the infection process of entomopathogenic fungi; however, their chemical substance basis has not been well investigated. Here, mixtures of polyol lipids are discovered, which are synthesized through iterative chain transfer-esterification-hydrolysis cycles catalyzed by serine hydrolase during the release of online highly reducing polyketide intermediates. Importantly, an gene knockout experiment revealed that the synthesis of polyol lipids is necessary for rodlet layer formation on the cell wall of .
View Article and Find Full Text PDFA plasmid with the gene enhances the fitness of strains under laboratory conditions.
Microbiology (Reading)
January 2025
Instituto de Microbiologa, Colegio de Ciencias Biolgicas y Ambientales, Universidad San Francisco de Quito, Quito, Ecuador.
Antimicrobial resistance (AMR) is a major threat to global public health that continues to grow owing to selective pressure caused by the use and overuse of antimicrobial drugs. Resistance spread by plasmids is of special concern, as they can mediate a wide distribution of AMR genes, including those encoding extended-spectrum -lactamases (ESBLs). The CTX-M family of ESBLs has rapidly spread worldwide, playing a large role in the declining effectiveness of third-generation cephalosporins.
View Article and Find Full Text PDFFungal-derived tRNAs are expressed and aminoacylated in orchid mitochondria.
Mol Biol Evol
January 2025
Department of Biology, Colorado State University, Fort Collins, CO, USA.
Plant mitochondrial genomes (mitogenomes) experience remarkable levels of horizontal gene transfer (HGT), including the recent discovery that orchids anciently acquired DNA from fungal mitogenomes. Thus far, however, there is no evidence that any of the genes from this interkingdom HGT are functional in orchid mitogenomes. Here, we applied a specialized sequencing approach to the orchid Corallorhiza maculata and found that some fungal-derived tRNA genes in the transferred region are transcribed, post-transcriptionally modified, and aminoacylated.
View Article and Find Full Text PDFMulti-sample long-read nanopore sequencing of Agabus bipustulatus (Coleoptera: Dytiscidae: Agabinae) mitogenome produces effectively reliable data for downstream analyses.
J Insect Sci
January 2025
ZooLab, Department of Biodiversity and Ecology, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Bratislava, Slovakia.
Mitochondrial genomes are a rich source of data for various downstream analyses such as population genetics, phylogeny, and systematics. Today it is possible to assemble rapidly large numbers of mitogenomes, mainly employing next-generation sequencing and third-generation sequencing. However, verification of the correctness of the generated sequences is often lacking, especially for noncoding, length-variable parts.
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