Summary
Summary Theme 6 MBY251 study note
- Course
- MBY 251 (MBY251)
- Institution
- University Of Pretoria (UP)
A summarized version of lecture slides for theme 6, used for exam studying purposes
[Show more]
Content preview
THEME 6- H U M A N & P L A N T - B A C T E R I A LINTERACTIONS
Terminology
Pathogen: organism that grows/on a host and causes disease
Pathogenicity: the ability of a pathogen to cause disease
Virulence: measure of pathogenicity
Virulence factors: factors/strategies used by bacteria to cause disease
Compromised host: a host w/ low resistance (HIV/Cancer patient)
Opportunistic pathogen: causes disease only in the absence of normal host resistance
Attenuation: the decrease/ loss of virulence
Toxicity: organism causes disease by means of a toxin that inhibits host cell function/ kills cell (toxins travel to sites,
pathogen not inside host)
Effector: secretion & translocated virulence factors that interfere w/ host defenses
Compatible: pathogen can cause disease
Entry of pathogen
Entry points:
Human: nose, urogenital, mouth, wounds, mucous membranes, bites.
Plants: stomata, hydrathodes, lenticels, wounds, bites
Bacterial adherence facilitated by:
- Extracellular macromolecules (not covalently attached to bacterial cell surface, eg. Slime layer)
- Adhesins
- Fimbriae and pili
- Flagella
Transportation of bacteria in host
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller meganholland. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R100,00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
51036 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 15 years now