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Puccinia porri (previously known as Puccinia allii) is a species of rust fungus that causes leek rust. It affects leek , garlic , onion , and chives , and usually appears as bright orange spots on infected plants.
Rust fungi grow intracellularly, and make spore-producing fruiting bodies within or, more often, on the surfaces of affected plant parts. [3] Some rust species form perennial systemic infections that may cause plant deformities such as growth retardation, witch's broom, stem canker, galls, or hypertrophy of affected plant parts.
Leeks suffer from insect pests, including the thrips species Thrips tabaci and the leek moth. [11] [12] Leeks are also susceptible to leek rust (Puccinia allii). [8] Damage from thrips is greatest when under water stress in hot, dry weather. In these conditions, insect reproduction occurs quickly while plant growth is slowed.
Puccinia is a genus of fungi.All species in this genus are obligate plant pathogens and are known as rusts. [1] The genus contains about 4000 species. [2]The genus name of Puccinia is in honour of Tommaso Puccini (died 1735), who was an Italian doctor and botanist who taught anatomy at Hospital of Santa Maria Nuova in Florence.
Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture.Rust consists of hydrous iron(III) oxides (Fe 2 O 3 ·nH 2 O) and iron(III) oxide-hydroxide (FeO(OH), Fe(OH) 3), and is typically associated with the corrosion of refined iron.
Common mistakes people make when removing rust include using chemicals that are too harsh, like hydrochloric acid and chlorine bleach, and not thoroughly cleaning and drying the metal surface ...
Bhattacharyya [5] did a study on the three separate types of fungi that are known to cause concrete corrosion: Aspergillus tamarii, Aspergillus niger, and Fusarium. Aspergillus tamarii was the most destructive of the three fungi. It causes cracks to widen and deepen, quickly and efficiently takes root, and promotes calcium oxalate.
Puccinia angustata is a plant pathogen that causes rust on plants in the genus Monarda. [2] It was first described scientifically in 1873 by American mycologist Charles Horton Peck, who found it growing on the leaves on the sedges Scirpus sylvaticum and S. eriophorum. [3]