MICR 221 Lecture Notes - Lecture 15: Magnetosome, Inclusion Bodies, Nature Nanotechnology
24 Apr 2018
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Restricted to some gram +ve, many layers contr to dna protection, 15% of weight is dipicolinic acid complexed w. Resistant to heat, radiation, chem disinfectants and desiccation. May be pathogenic, viable for hundreds of years. Stained w hot malachite green, aid in survival when nutrients or moisture is limited. Ruled egypt 1370-1352 bc, tomb discovered in 1922. Lord carnarvon died from infected mosquito bite but sir conan doyle suggested it was spores to fend of invaders. Spores from old spores could be revived from amber. Raul cano and borucki took bee amber and put contents in media and had similar to bee contents in current bees. Inclusion bodies granules of in/organic material that are stockpiled by the cell for future use, some. Inorganic inclusion bodies enclosed by a single-layer memb. Polyhydroxybutyrate: surrounded by proteins, common, used to makes plastics. Cyanophycin: n storage, peptides w equal amounts of arg and aspartic acid. Cabroxysomes: contain the enzyme rubisco for co2 fixation (autotrophs)
