EVERYDAY SCIENCE

SCIENCE

VIRUS AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following plant diseases is caused by bacteria?
A
Citrus dieback
B
karnal bunt of wheat
C
Potato witches,broom
D
Tundu disease of wheat
Explanation: 

Detailed explanation-1: -Tundu disease is also named yellow ear rot disorder. It is caused by the nematode, Anguina tritici and the bacterium, Corynebacterium tritici. The disease leads to yellow black elongated spots appearing on leaves and straws. The plant has weak saplings that show stunted growth.

Detailed explanation-2: -Tundu disease is also called as yellow ear rot diseases. It is caused by the nematodes and bacteria i.e., combined action of a nematode, Anguina tritici and a bacterium, Corynebacterium tritici.

Detailed explanation-3: -The tundu disease or yellow ear rot disease of wheat is caused due to infection of a bacterial pathogen known as Clavibacter tritici in association with a nematode named Anguina tritici. The bacteria show positive results to gram staining and hence are gram-positive bacteria, spherical, and possess a capsule.

Detailed explanation-4: -Bacterial infections can be treated by the use of antibiotics. Bacteriocidal medicines kill bacteria, whereas bacteriostatic medicines inhibit the further growth of bacteria. Bacteriophages are also used to treat certain bacterial infections. It is known as phage therapy.

There is 1 question to complete.