Bacterial leaf blight of rice is caused by a specie:

Explanation

Bacterial leaf blight of rice is primarily caused by a species of Xanthomonas. Here's an explanation of each of the options:1. Alternaria: Alternaria is a fungal pathogen that is not typically associated with bacterial leaf blight in rice. It is more commonly known for causing diseases in various other plants, such as Alternaria leaf spot in crops like tomatoes and potatoes.2. Erwinia: Erwinia is a genus of bacteria, but it is not the primary causative agent of bacterial leaf blight in rice. Erwinia species are often associated with diseases in a variety of plants, including soft rot in vegetables.3. Xanthomonas: Xanthomonas or Xanthomonas oryzae is the primary bacterium responsible for bacterial leaf blight of rice. This pathogen can lead to severe damage to rice crops, causing characteristic leaf blight symptoms.4. Pseudomonas: Pseudomonas is a diverse genus of bacteria, but it is not commonly associated with bacterial leaf blight of rice. Pseudomonas species can cause diseases in a range of plants, but they are not the primary causative agent for this specific rice disease.So, in the context of bacterial leaf blight in rice, the correct answer is Xanthomonas.