Lecture 19 - microbial associations w/ higher oragnisms

Question 1

What are the 3 types of symbiosis

Answer 1

Mutualism
Commensalsism = when one benefits and other unaffected
Parasitism

Question 2

What does cordyceps fungi do to ant

Answer 2

ectoparasitic
Will modify ant brain to make it move more north and to higher ground (~25cm) to give optimal conditions for fungal growth

Question 3

What is relationship between springtails and fungi

Answer 3

Laccaria fungi kill springtails for its Nitrogen
But some springtails can also graze off the fungi
Not muualism btw, two separate parasitic systems

Question 4

What does nematophagus fungi do

Answer 4

detects presence of nematode worms
Captures them, kills them, and uses them for nutrients

Question 5

What is plant solid feedback PSF

Answer 5

Plants affect their environment, which then affects how the plants grow in the environment

Question 6

What happens when plants attacked by aphids

Answer 6

produce VOCs
Which repel aphid
But also attract aphid predators to come munch on them

Question 7

How can plants communicate and give example

Answer 7

via fungal networks, cud they can be shared between plants,
E.g. If an attacked plant releases VOCs, then via the fungi, the nearby unattacked plant also starts releasing it as a precautionary measure