BIO 332 Study Guide - Final Guide: Mollicutes, Gram Staining, Nectar
6 May 2019
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Plant bacterial pathogens cannot form thick walled spores. Many bacteria exude slime to help them spread/move. Can pass through contact and physical transfers. No cell wall but do have cell membrane. Bacteria can be filtered out of a liquid/air sample. All filtered out at 0. 22 m opening trap. Bacteria = rigid cell wall and cell membrane. Mlo"s b/c they look similar to animal mycoplasmas. Can be carried via rain and gravity. Dry out in dry conditions and die. Open pores in leaves diffuse co2 in, o2 out. Bacteria can passively flow into open stomates in films of water. Many human bacterial pathogens can form highly resistant spore (thick walls) to the environment. Pour out water (excess of water in plant) Sucks in last drop of water in, bacteria can go in this way if already on the leaf. Plant can be overwatered and form water blisters. Pollinating bees can drop off bacteria as they feed.
