Monera kingdom (Eubacteria)

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Kingdom monera 

Eubacteria

  • They are true bacteria
  • Flagellum is present in them 
  • They have a rigid cell wall
  • Habitat :-  They can be found almost everywhere including human beings, may occupy moist habitats

Nutrition

  • Photosynthetic autotrophs :- Cynobacteria ( blue green algae ) - They prepare their own food in the presence of sunlight with chlorophyll
  • Chemosynthetic autotrophs :-They prepare their own food with the help of chemicals (oxidising nitrites, nitrates, ammonia ) .  They help in recycling of nutrients like sulphur nitrogen etc
  • Heterotrophs :- They are saprophytes , decomposers ,feed on dead and decomposed organisms/matter , parasites, live inside  other organisms & derive from them.

Cynobacteria (blue green algae)

  • cyno refers to blue ; hence termed as cynobacteria
  • They perform photsynthesis
  •  They are responsible for enriching atmosphere with oxygen

Heterotrophic eubacteria

  • They are decomposers -bacillus, streptomyces, pseudomonas
  • Curd from milk -lactobacillus
  • Antibiotics
  • Nitrogen fixation- rhizobium
  • Present in roots (peas)

Pathogens

  • They are disease causing bacteria
  • Typhoid- salmonella typhi
  • Cholera- vibrio cholera
  • Tetanus-clostridium tetani
  • Syphilis-treponema pallidium

E.coli

  • They are rod shaped bacteria 
  • Found in lower intestine of warm- blooded animals
  • Most of the E.coli strains are harmless, but some can cause serious food poisoning in humans.

Mycoplasma

  • Parasitic Bacteria
  • They do not have cell walls 
  • smallest living cells
  • Habitat :-human respiratory/urogenital tracts , blood smears
  • Diseases ;-Mycoplasma pneumoniae ;pneumonia,  FIA(feline infectious anaemia)

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