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Puccinia Oxalidis
''Puccinia oxalidis'' is a fungus species in the genus ''Puccinia''. This species is a causal agent of rust on plants in the genus ''Oxalis'', such as ''Oxalis articulata''. The disease appears as yellow dots on the reverse of the leaves. The aecial An aecium (plural aecia) is a specialised reproductive structure found in some plant pathogenic rust fungi that produce aeciospores. Aecia may also be referred to as "cluster cups". The term aecidium (plural aecidia) is used interchangeably but i ... stage can be found on '' Berberis repens''.Aecial Stage of Puccinia oxalidis. W. H. Long and R. M. Harsch, Botanical Gazette, May 1918, volume 65, Number 5, pages 475-478, See also * List of ''Puccinia'' species References External links oxalidis Fungal plant pathogens and diseases Fungi described in 1895 {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxalis Debilis
''Oxalis debilis'', the large-flowered pink-sorrel or pink woodsorrel, is a perennial plant and herb in the family Oxalidaceae. Its original distribution is South America but has become a very cosmopolitan species, occurring in all continents except Antarctica. It can be found in both temperate and tropical areas. The flowers, leaves and roots are edible. There is concern that the plant should only be consumed in small amounts because it contains oxalic acid that can cause calcium deficiency if eaten in larger amounts. Studies show that this is an exaggerated fear. The leaves have what is considered a zesty lemony flavor. Description It is a bulbous plant. The fruit is a capsule. The seeds are projected, with an elastic integument. In Europe the plants are sterile and are propagating only by bulbs. Research on the naturalizing populations in China show the presence of 2 flower morphs, pollen with low viability and polyploidy. Varieties and cultivation There are two vari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Dietel
Paul Dietel (15 February 1860, Greiz – 30 October 1947, Zwickau) was a German mycologist. He studied mathematics and natural sciences at the universities of Leipzig, Berlin and Göttingen, and afterwards worked as a schoolteacher in Greiz, Leipzig, Reichenbach im Vogtland and Glauchau. He specialized in research of rust fungi ( Uredinales) — from 1887 to 1943 he was the author of 150 scientific papers on rusts. His extensive treatment of rust fungi in Engler and Prantl's ''Die Natürlichen Pflanzenfamilien'' was recognized as its definitive account for many years. In 1897 Paul Christoph Hennings named the genus ''Dietelia'' (family Pucciniosiraceae The Pucciniosiraceae are a family of rust fungi in the order Pucciniales. The family contains 10 genera and 57 species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of bio ...) in his honor. Selected writings * ''Beiträge zur Morphologie und ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Job Bicknell Ellis
Job Bicknell Ellis (January 21, 1829 – December 30, 1905) was a pioneering North American mycologist known for his study of ascomycetes, especially the grouping of fungi called the Pyrenomycetes (known today as the Sordariomycetes). Born and raised in New York, he worked as a teacher and farmer before developing an interest in mycology. He collected specimens extensively, and together with his wife, prepared 200,000 sets of dried fungal samples that were sent out to subscribers in series between 1878 and 1894. Together with colleagues William A. Kellerman and Benjamin Matlack Everhart, he founded the ''Journal of Mycology'' in 1885, forerunner to the modern journal ''Mycologia''. He described over 4000 species of fungi, and his collection of over 100,000 specimens is currently housed at the herbarium of the New York Botanical Gardens. Ellis had over 100 taxa of fungi named in his honor. Life Ellis was born in Potsdam, New York on January 21, 1829 to parents Freeman Ellis and S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puccinia
''Puccinia'' is a genus of fungi. All species in this genus are obligate plant pathogens and are known as rusts. The genus contains about 4000 species. 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. The genus was circumscribed by Pier Antonio Micheli in Nov. Pl. Gen. on page 213 in 1729. Taxonomy Examples of ''Puccinia'' rusts and the diseases they cause: * '' Puccinia asparagi'' - Asparagus rust * ''Puccinia graminis'' - Stem rust, also known as black rust * '' Puccinia horiana'' - Chrysanthemum white rust * '' Puccinia mariae-wilsoniae'' - Spring beauty rust * '' Puccinia poarum'' - Coltsfoot rust gall * ''Puccinia psidii'' - Guava rust or eucalyptus rust * '' Puccinia recondita'' - Brown rust * ''Puccinia sessilis'' - Arum rust and Ransoms rust * '' Puccinia striiformis'' - Stripe rust, also known as yellow rust * ''Puccinia triticina'' - Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rust (fungus)
Rusts are plant diseases caused by pathogenic fungi of the order Pucciniales (previously known as Uredinales). An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus ''Puccinia'', are currently accepted. Rust fungi are highly specialized plant pathogens with several unique features. Taken as a group, rust fungi are diverse and affect many kinds of plants. However, each species has a very narrow range of hosts and cannot be transmitted to non-host plants. In addition, most rust fungi cannot be grown easily in pure culture. A single species of rust fungi may be able to infect two different plant hosts in different stages of its life cycle, and may produce up to five morphologically and cytologically distinct spore-producing structures viz., spermogonia, aecia, uredinia, telia, and basidia in successive stages of reproduction. Each spore type is very host specific, and can typically infect only one kind of plant. Rust fungi are o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxalis Articulata
Flowers ''Oxalis articulata'', known as pink-sorrel, pink wood sorrel, windowbox wood-sorrel, Chari amilo (Nepal), sourgrass, Netho (khatta) saag (India) is a perennial plant species in the genus ''Oxalis'' native to temperate South America. It has been introduced in Europe in gardens and is now naturalized in these areas. The plant is susceptible to rust (disease due to the fungus '' Puccinia oxalidis''). File:Oxalis arborea1.jpg, ''O. articulata'' f. ''crassipes'' File:Oxalis articulata rubra0.jpg, ''O. articulata'' ssp. ''rubra'' Description As the name would imply, this species of ''Oxalis'' typically has pink to violet flowers with petals 10–15 mm long. This species has "Plants arising from a thick, woody, irregularly nodulate-segmented rhizome often with persistent, thickened, and lignescent petiole bases; flowers 3–12 in umbelliform cymes, less commonly in irregular cymes". The plant is a perennial and typically grows up to 45 cm tall and 2 cm in di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aecium
An aecium (plural aecia) is a specialised reproductive structure found in some plant pathogenic rust fungi that produce aeciospores. Aecia may also be referred to as "cluster cups". The term aecidium (plural aecidia) is used interchangeably but is not preferred. In some rust fungi such as ''Phragmidium'', aecia lack an outer wall structure (a peridium The peridium is the protective layer that encloses a mass of spores in fungi. This outer covering is a distinctive feature of gasteroid fungi. Description Depending on the species, the peridium may vary from being paper-thin to thick and rubber ...) but instead produce a diffuse aecium called a caeoma.''Fungi''. Lilian E Hawker, 1966, Hutchinson University Library In some species of rust fungi with a life cycle including two different host plants, the binucleate spores produced in the aecia cannot infect the current plant host, but must infect a different plant species. References Fungal morphology and anatomy Reproduc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berberis Repens
''Berberis repens'' commonly known as creeping mahonia, creeping Oregon grape, or creeping barberry, is a species of ''Berberis'' native to most of the western United States and two western provinces of Canada. It has found use as a xeric ornamental plant and has escaped from cultivation in areas beyond its native range. Description ''Berberis repens'' is an extremely short shrub, usually just 2–20 centimeters tall, very occasionally reaching 60 centimeters. ''Berberis repens'' has conspicuous matte blue berries. The yellow flowers appear in the middle of spring, and the blue berries in early summer. Although it is evergreen, in fall the leaves turn bronze. The plant is found at elevations from to . Taxonomy Some botanists place ''Berberis repens'', and a significant portion of the barberry genus ''Berberis'', in the genus ''Mahonia''. However, as of 2023 most botanical sources agree that it is properly placed in ''Berberis''. In this case, the scientific name may b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Puccinia Species
This is an incomplete list of species in the fungal genus ''Puccinia''. Members of this genus are pathogens on all major cereal crop species except rice, and some cause large economic losses. According to the ''Dictionary of the Fungi'' (10th edition, 2008), the widespread genus contains about 4000 species. *'' Puccinia abrotani'' *'' Puccinia abrupta'' *'' Puccinia acetosae'' *'' Puccinia achilleae'' *'' Puccinia adjuncta'' *'' Puccinia adoxae'' *'' Puccinia aegopodii'' *'' Puccinia agrophila'' *'' Puccinia akiraho'' *'' Puccinia albescens'' *'' Puccinia alboclava'' *'' Puccinia albulensis'' *'' Puccinia aletridis'' *''Puccinia allii'' *'' Puccinia amphigena'' *'' Puccinia andropogonis'' *'' Puccinia anemones-virginianae'' *''Puccinia angelicae'' *''Puccinia angustata'' *''Puccinia anisotomes'' *''Puccinia annularis'' *''Puccinia antenori'' *''Puccinia anthemidis'' *''Puccinia antirrhini'' *''Puccinia apii'' *''Puccinia arachidis'' *''Puccinia arenariae'' *'' Puccinia areolata' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungal Plant Pathogens And Diseases
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' (''true f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
