IV. PATHOGENICITY. 1. Pathogenic to Animals. _Insects_, _crustaceans_, _fishes_, _reptiles_, _birds_, _mice_, _rats_, _guinea-pigs_, _rabbits_, _dogs_, _cats_, _sheep_, _goats_, _cattle_, _horses_, _monkeys_, _man_.......................... 2. Pathogenic to Plants: ......................................................... ......................................................... ......................................................... 3. Toxins, _soluble_, _endotoxins_. 4. Non-toxin forming. 5. Immunity bactericidal. 6. Immunity non-bactericidal. 7. Loss of virulence on culture-media: _prompt_, _gradual_, _not observed in_.....................months. +-------------------------------------+ | BRIEF CHARACTERIZATION. | | | | Mark + or 0, and when two terms | | occur on a line erase the one which | | does not apply unless both apply. | | | +--------------------------------+----+ | M | Diameter over 1µ |----| | O | Chains, filaments |----| | R | Endospores |----| | P | Capsules |----| | H | Zooglea, Pseudozooglea |----| | O | Motile |----| | L | Involution forms |----| | O | Gram’s stain |----| | G | |----| | Y | |----| |(2)| |----| +---+----------------------------+----+ | C | B | Cloudy, turbid |----| | U | r | Ring |----| | L | o | Pellicle |----| | T | t | Sediment |----| | U | h | |----| | R +-----+----------------------+----+ | A | A | Shining |----| | L | g | Dull |----| | | a | Wrinkled |----| | F | r | Chromogenic |----| | E +-----+----------------------+----+ | A | G | Round |----| | T | e | Proteus-like |----| | U | l. | Rhizoid |----| | R | | Filamentous |----| | E | P | Curled |----| | S | l | |----| |(3)| a | |----| | | t | |----| | | e | |----| | +-----+----------------------+----+ | | G S | Surface growth |----| | | e t | Needle growth |----| | | l a | |----| | | . b.| |----| | +-----+----------------------+----+ | | P | Moderate, absent |----| | | o | Abundant |----| | | t | Discolored |----| | | a | Starch destroyed |----| | | t | |----| | | o | |----| | +-----+---------------------------+ | | Grows at 37° C. |----| | | Grows in Cohn’s sol.