Which fungal disease spreads by seed and flowers?

Explanation

a)The fungal disease that spreads by seed and flowers is "Loose smut of wheat." This disease is caused by the fungus Ustilago tritici and is commonly known to infect wheat plants. It affects the wheat's seed-producing structures, leading to the contamination of seeds with fungal spores. When infected seeds are sown, the fungus can spread to new wheat plants during their growth and reproduction. Loose smut of wheat (Ustilago tritici): This fungal disease affects the reproductive structures of wheat, such as the flowers, and can lead to significant crop yield losses if not controlled. b)Corn smut: Ustilago maydis is a fungal pathogen that causes corn smut. This fungus primarily affects corn (maize) plants. It infects various parts of the plant, including the kernels, stems, and leaves. Unlike loose smut of wheat, corn smut doesn't primarily spread through seeds and flowers. c)Covered smut of barley: Covered smut of barley is caused by the fungus Ustilago hordei. Similar to loose smut of wheat, this disease affects the barley plant. However, its mode of transmission is not primarily through seeds and flowers but through the infection of developing barley kernels (seeds). d)Soft rot of potato: Soft rot is caused by bacteria rather than fungi. It is commonly caused by pectinolytic bacteria like Pectobacterium carotovorum and Dickeya spp.. Soft rot leads to the decay of potatoes and other tubers, causing them to become soft, slimy, and foul-smelling. This bacterial disease is not directly related to the spread by seeds and flowers, but it can lead to significant post-harvest losses. In summary, "Loose smut of wheat" is the fungal disease primarily known to spread through seeds and flowers. The other options, including "Corn smut," "Covered smut of barley," and "Soft rot of potato," have different modes of transmission and primarily affect the respective plants in distinct ways.