Abstract

UREDINALES THE RUST FUNGI

Dr. Teena Agrawal*

Abstract

Fungi belonging to the order uredinales are commonly termed as the Rusts. It has been estimated that there are about the 140-150 species of the rust fungi and they belong to the about of the 5000 species of the rust. Economically they are the most important species of the uredinales. All are parasitic on the higher angiosperms plants and they cause the tremendous diseases. The stem rust of the wheat and the white pine blister rust of the gymnosperms ahs causes the serious damage to the plantation. In addition to that coffee rust, asparagus rust, bean rust, cedar apple rust, snadaragasn rust, carnation rust are the another example of the rust which have been studied in the detail in the literature. The majority of the rust completes their life cycles on the two hosts and they have overall the five kinds of the spores, in addition to the basiodiospores. Rust fungi also produce the specialised sex organs. They are the obligate parasites of the plants. Generally the life cycles of the rust are the macrocyclic kind types. There are the five stages of the rust fungi exist on the earth, they have been classified as the spermagonia, aeciaspores, Uredinia, Telispores and the basidiospores. In this review article we are presenting some of the aspects of the rust fungi in detail, some of the aspects of the rust fungi in addition to their life cycle pattern. However rust are the such a marvellous fungi of the plant kingdom they whatever we write, it will be the short communications. However such of the review article are good for the students of the fungi and the fungal study at the initial levels.

Keywords: Rust Fungi, uredinales, macro cyclic, spermagonia, basidiospores.