Question

Compare and contrast the infection processes and diseases caused by a necrotrophic bacteria and a hemi-biotrophic bacteria?

a) Both types cause diseases in plants, but necrotrophic bacteria lead to rapid cell death, while hemi-biotrophic bacteria cause a slower, partial death.

b) Necrotrophic bacteria primarily attack dead plant tissues, while hemi-biotrophic bacteria infect living tissues before transitioning to necrotrophy.

c) Hemi-biotrophic bacteria establish a mutualistic relationship with plants, while necrotrophic bacteria are purely parasitic.

d) Necrotrophic bacteria produce toxins that kill surrounding cells, while hemi-biotrophic bacteria manipulate the host's immune response for a prolonged infection.

Answer 1

Necrotrophic bacteria cause rapid cell death in dead plant tissues due to the toxins they produce, while hemi-biotrophic bacteria infect living tissues and manipulate the host's immune response.

Step-by-step explanation:

Necrotrophic bacteria and hemi-biotrophic bacteria are two types of bacterial plant pathogens that cause diseases in plants. The infection processes and diseases caused by these bacteria have some key differences:

1. Rapid vs. slow cell death: Necrotrophic bacteria lead to rapid cell death in plants, while hemi-biotrophic bacteria cause a slower, partial death.
2. Attack dead vs. living tissues: Necrotrophic bacteria primarily attack dead plant tissues, while hemi-biotrophic bacteria infect living tissues before transitioning to necrotrophy.
3. Mutualistic vs. parasitic relationship: Hemi-biotrophic bacteria establish a mutualistic relationship with plants, while necrotrophic bacteria are purely parasitic.
4. Production of toxins vs. manipulation of host immune response: Necrotrophic bacteria produce toxins that kill surrounding cells, while hemi-biotrophic bacteria manipulate the host's immune response for a prolonged infection.