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22 de feb. de 2023 · Polysaccharide breakdown by bacteria requires the activity of enzymes that degrade polymers either intra- or extra-cellularly. The latter mechanism generates a localized pool of breakdown...
10 de feb. de 2021 · The bacterial cell wall is made primarily from peptidoglycan, a complex biomolecule which forms a bag-like exoskeleton that envelops the cell. As it is unique to bacteria and typically essential for their growth and survival, it represents one of the most successful targets for antibiotics.
From a nutritional, or metabolic, viewpoint, three major physiologic types of bacteria exist: the heterotrophs (or chemoorganotrophs), the autotrophs (or chemolithotrophs), and the photosynthetic bacteria (or phototrophs) ( Table 4-1 ). These are discussed below.
4 de sept. de 2019 · Bacterial cell wall biology remains a major frontier, both in our quest to develop a profound understanding of fundamental microbiology and to discover novel compounds that may be used to treat infections caused by antibiotic resistant bacteria.
The Atlas of Bacterial & Archaeal Cell Structure, an open-access digital textbook, showcases microbial cells imaged by 3D electron microscopy.
24 de jul. de 2020 · Bacterial cells were once presumed to be ‘bags of enzymes’ with minimal oganization 1. Yet, in the past 10 years, numerous studies have demonstrated that bacteria compartmentalize many cellular...
Bacterial cell structure. A bacterium, despite its simplicity, contains a well-developed cell structure which is responsible for some of its unique biological structures and pathogenicity. Many structural features are unique to bacteria and are not found among archaea or eukaryotes.
