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Effect of Selenium, Copper and Manganese Nanocomposites in Arabinogalactan Matrix on Potato Colonization by Phytopathogens and .
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Department of Forest Genetics and Forest Tree Breeding, Faculty of Forest Sciences and Forest Ecology, Georg-August University of Göttingen, 37077 Göttingen, Germany.
The effect of chemically synthesized nanocomposites (NCs) of selenium (Se/AG NC), copper oxide (Cu/AG NC) and manganese hydroxide (Mn/AG NC), based on the natural polymer arabinogalactan (AG), on the processes of growth, development and colonization of potato plants in vitro was studied upon infection with the causative agent of potato blackleg-the Gram-negative bacterium -and the causative agent of ring rot-the Gram-positive bacterium (). It was shown that the infection of potatoes with reduced the root formation of plants and the concentration of pigments in leaf tissues. The treatment of plants with Cu/AG NC before infection with stimulated leaf formation and increased the concentration of pigments in them.
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iB(2) Laboratory, Department of Biology, Faculty of Sciences, University of Porto, Portugal; Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Spain; LAQV-REQUIMTE, Department of Biology, Faculty of Sciences, University of Porto, Portugal. Electronic address:
The emergence of bacterial resistance and the increasing restrictions on the use of agrochemicals are boosting the search for novel, sustainable antibiotics. Antimicrobial peptides (AMPs) arise as a new generation of antibiotics due to their effectiveness at low doses and biocompatibility. We compared the antimicrobial activity of four promising AMPs (CA-M, BP100, RW-BP100, and 3.
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The genus comprises 13 species, the majority of which are plant colonizers. However, some species are occasionally isolated from environmental sources, including water and polluted soil, while others are opportunistic human pathogens. Four novel bacterial strains were isolated from diseased foliage of tomato and Boston fern in Florida, USA.
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Interspecies interactions involving direct competition bacteriocin production play a vital role in shaping ecological dynamics within microbial ecosystems. For instance, the ribosomally produced siderophore bacteriocins, known as class IIb microcins, affect the colonization of host-associated pathogenic species. Notably, to date, only five of these antimicrobials have been identified, all derived from specific and strains.
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