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1991年11月我局从进口的23600吨沙特阿拉伯小麦中检出植物危险性病害-小麦印度腥黑穗病(Tilletia indica Mitra)。 小麦印度腥黑穗病的症状表现与小麦普通腥黑穗病明显不同,其特点是感病麦株并非全株发病,一个病穗中仅部分籽粒受病。病菌主要侵染胚乳,除严重感病外一般不侵染胚;病穗一般较健穗短,小穗数量大。病菌孢子抗逆性极强,在干燥条件下可存活7年以上,散落在田间的孢子可存活2—4年,经沤肥或经家畜消化道仍有部分孢子能正常萌发。该菌对不同地理气候区具有广泛的适应性,目前我国没有该病发生,一旦传入,后果
In November 1991, our bureau detected the Tilletia indica Mitra, a plant-borne disease, from 23,600 tons of imported Saudi Arabia wheat. The symptoms of wheat Indian tangling are obviously different from those of common wheat tilapia, which is characterized by the fact that the susceptible wheat is not affected by the whole plant, and only a part of the grains in a diseased panicle are affected by the disease. Bacteria mainly invade the endosperm, in addition to severe infection generally non-invasive embryos; sick ear generally shorter than the spike, spikelets large number. Germs spores strong resistance, can survive in dry conditions for more than 7 years, spores scattered in the field can survive 2-4 years, after fertilizing or through the digestive tract of livestock still some spores germinate. The bacteria in different geographical climate zone has a wide range of adaptability, at present our country does not have the disease, once introduced, the consequences