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Galangin synergistically revives the antibacterial activity of vancomycin against vancomycin-resistant Enterococcus faecium.
J Appl Microbiol
January 2025
School of Preclinical Sciences, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.
Aims: Enterococcus faecium is one of the most important opportunistic pathogens threatening human health worldwide. Resistance to vancomycin (VAN) is increasing at an alarming rate. Resurrecting antibiotics using a combination approach is a promising alternative avenue.
View Article and Find Full Text PDFDNA targeting by compact Cas9d and its resurrected ancestor.
Nat Commun
January 2025
Interdisciplinary Life Sciences Graduate Programs, University of Texas at Austin, Austin, TX, 78712, USA.
Type II CRISPR endonucleases are widely used programmable genome editing tools. Recently, CRISPR-Cas systems with highly compact nucleases have been discovered, including Cas9d (a type II-D nuclease). Here, we report the cryo-EM structures of a Cas9d nuclease (747 amino acids in length) in multiple functional states, revealing a stepwise process of DNA targeting involving a conformational switch in a REC2 domain insertion.
View Article and Find Full Text PDFEndophytic Bacteria from the Desiccation-Tolerant Plant and Their Potential as Plant Growth-Promoting Microorganisms.
Microorganisms
December 2024
Laboratorio de Fisiología Molecular de Plantas, Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Av. Universidad No. 1001, Col Chamilpa, Cuernavaca 62209, Mexico.
Bacteria associated with plants, whether rhizospheric, epiphytic, or endophytic, play a crucial role in plant productivity and health by promoting growth through complex mechanisms known as plant growth promoters. This study aimed to isolate, characterize, identify, and evaluate the potential of endophytic bacteria from the resurrection plant in enhancing plant growth, using ecotype Col. 0 as a model system.
View Article and Find Full Text PDFEvolution of competitive ability and the response to nutrient availability: a resurrection study with the calcareous grassland herb, Leontodon hispidus.
Oecologia
January 2025
Plant Evolutionary Ecology, Institute of Ecology, Evolution and Diversity, Faculty of Biological Sciences, Goethe University Frankfurt, Max-Von-Laue-Str. 13, 60438, Frankfurt am Main, Germany.
Rapid environmental changes across Europe include warmer and increasingly variable temperatures, changes in soil nutrient availability, and pollinator decline. These abiotic and biotic changes can affect natural plant populations and force them to optimize resource use against competitors. To date, the evolution of competitive ability in the context of changes in nutrient availability remains understudied.
View Article and Find Full Text PDFResurrection of a diatom after 7000 years from anoxic Baltic Sea sediment.
ISME J
January 2025
Biological Oceanography, Leibniz Institute for Baltic Sea Research Warnemünde, Rostock, 18119 Germany.
Dormancy is a wide-spread key life history trait observed across the tree of life. Many plankton species form dormant cells stages that accumulate in aquatic sediments and under anoxic conditions, form chronological records of past species and population dynamics under changing environmental conditions. Here we report on the germination of a microscopic alga, the abundant marine diatom Skeletonema marinoi that had remained dormant for up to 6871 ± 140 years in anoxic sediments of the Baltic Sea and resumed growth when exposed to oxygen and light.
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