Biology of Plants

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Chapter 13 part 2 Prokaryotes and Viruses
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2nd major group of Photosynthetic Bacteria

• Purple and Green Bacteria Have Unique types of
  Photosynthesis
• Purple or green sulfur bacteria-
• -Carbon dioxide Hydrogen sulfide in the
  presence of light forms carbohydrate water and
  sulfur p247.
• Cyanobacteria-
• -Carbon dioxide water in the presence of light
  form carbohydrates water and oxygen

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Spiroplasmas- motile bacteria that cause stubborn
disease
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Mycoplasmalike Organisms- slow weakening
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Mycoplasmiclike organism devestated a grove
of Coconut palms
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Bacterial effects on Plants
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Halophiles- salt loving Archaea
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Methane producing archae
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Extreme thermophiles- archaea YNP HS rich
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General life cycle of a virus Two stages 1.
Replication inside host 2. Spread to new host
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Tobacco Mosaic Virus
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Wound tumor virus Tumor produced in sweet clover
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Electron Microscope Tumor virus particles
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Streaked flowers of Rembrant tulips Viral
infection eventually weakens plant