Multiple choice

The given symptoms are associated with which of the following diseases?

An infected tobacco plant exhibits the following symptoms:

1. Chloretic leaves

2. Virescence (greening of flowers)

3. Phyllody (development of leaf-like flower petals)

4. Reduced root system and sterility

 

  1. Stolbur

  2. Aster yellow

  3. Reniform

  4. Dagger
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Aster yellow is caused by a bacterium-like organism called a phytoplasma. The symptoms include vein clearing until the entire leaf becomes chlorotic, stunting, deformation, virescence (greening of flowers), phyllody (development of leaf-like flower petals), reddening of foliage, reduced root system and sterility.

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