Crown Gall Disease (Agrobacterium tumefaciens) Flashcards

1️⃣ Familiarise yourself with the flashcards:

Look through all the flashcards to see what's on both sides.
Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

Look at the question or prompt on each card and try to remember the answer before flipping it over.
Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

PERSONALISED 1-TO-1 TUTORING

Get support with clear explanations, practice and feedback (Ages 5 to 16).

Want an ad-free experience? Subscribe to remove ads

What type of pathogen causes crown gall disease in plants?

A bacterium called Agrobacterium tumefaciens causes crown gall disease.

They usually form as lumps on the stem or roots near the soil.

It is a round, swollen, lumpy growth, like a plant tumour.

It enters through cuts or wounds in the plant’s roots or stem.

It can spread in infected soil, on dirty tools, or with infected plant cuttings.

The galls can block water and food flow, so the plant grows poorly.

They are smaller, so blocked stems or roots affect them much more.

They can clean and disinfect tools after working with infected plants.

It should be dug up and destroyed, not composted, to stop the disease spreading.

They use it to carry new genes into plant cells and change the plant.