ENT378 Lecture Notes - Lecture 4: Sap, Probiotic, Competitive Exclusion Principle
29 Dec 2018
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Can move through fine structures because they can change their shape can"t identify dco: reproduce by fission and/or conjugation. Significance in repeatity fast growth: aerobic/anaerobic, some produce resistant endospores (and parasporal bodies toxins proteins that crystalize out), frequently contain plasmids - nongenomic dna - move genes around. Plasmids unit of pathology, coding for toxins conjugation: most common identified associate of insects. Bacteriophages viruses associated with bacteria; may enhance virulence and ability. Insect-associated bacteria and other prokaryotes most common association of insects. Types of associations: food --e. g. filter feeders. Fans on mouthparts; eat them and kill them looking for particular bacteria: characteristic gut microflora -- prevent disease (competitive exclusion) (in human therapies good bacteria known as probiotics are administered to prevent the invasion/replication of pathogenic bacteria). - cellulose feeding, etc. can"t survive on blood diets, Reproduce and move through insect replicate in blood and other tissues pick up small amount, replicate, more efficient in transmission.
