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Rust (fungus) Rusts are fungal plant pathogens of the order Pucciniales (previously known as Uredinales) causing plant fungal diseases . An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus Puccinia, are currently accepted. [ 3] Rust fungi are highly specialized plant pathogens with several ...
Fusarium wilt is a common vascular wilt fungal disease, exhibiting symptoms similar to Verticillium wilt. This disease has been investigated extensively since the early years of this century. The pathogen that causes Fusarium wilt is Fusarium oxysporum (F. oxysporum). [1] The species is further divided into formae speciales based on host plant.
Wheat leaf rust ( Puccinia triticina) is a fungal disease that affects wheat, barley, rye stems, leaves and grains. In temperate zones it is destructive on winter wheat because the pathogen overwinters. Infections can lead up to 20% yield loss. The pathogen is a Puccinia rust fungus.
Plant disease. Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). [ 1] Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus -like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. [ 2]
Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of ascomycete fungi in the order Erysiphales. Powdery mildew is one of the easier plant diseases to identify, as the signs of the causal pathogen are quite distinctive. Infected plants display white powdery spots ...
Rhizoctonia solani sensu lato causes a wide range of commercially significant plant diseases. It is one of the fungi responsible for brown patch (a turfgrass disease), damping off (e.g. in soybean seedlings), [10] black scurf of potatoes, [11] bare patch of cereals, [12] root rot of sugar beet, [13] belly rot of cucumber, [14] banded leaf and sheath blight in maize, [15] sheath blight of rice ...
About 300 species of fungi and fungus-like organisms, belonging to 13 classes and 113 genera, are used as biocontrol agents against plant fungal diseases. [220] Fungi can also act as mycoparasites or antagonists of other fungi, such as Hypomyces chrysospermus , which grows on bolete mushrooms.
The soil-borne fungal pathogen Agroathelia rolfsii is a basidiomycete that typically exists only as mycelium and sclerotia ( anamorph: Sclerotium rolfsii, or asexual state). It causes the disease Southern Blight and typically overwinters as sclerotia. [8] The sclerotia is a survival structure composed of a hard rind and cortex containing hyphae ...