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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. 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 range of hosts and cannot be transmitted to non-host plants. In addition, most rust fungi cannot be microbial culture, grown easily in pure culture. Most species of rust fungi are able to Heteroecious, infect two different plant hosts in different stages of their life cycle, and may produce up to five Morphology (biology), morphologically and cytologically distinct spore-producing structures viz., spermogonia, aecia, uredinium, uredinia, Telium, telia, and basidia in successive stages of reproduction. Each spore type is very host-specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puccinia Recondita F
''Puccinia'' is a genus of fungus, fungi. All species in this genus are obligate plant pathogens and are known as Rust (fungus), 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 circumscription (taxonomy), 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 evadens'' - Coyote brush 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 Ramsons rust * ''Puccin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heteroecious
A heteroecious parasite is one that requires at least two hosts. The ''primary host'' is the host in which the parasite spends its adult life; the other is the ''secondary host''. Both hosts are required for the parasite to complete its life cycle. This can be contrasted with an autoecious parasite which can complete its life cycle on a single host species. Many rust fungi have heteroecious life cycles: In parasitology, heteroxeny, or heteroxenous development, is a synonymous term that characterizes a parasite whose development involves several hosts. Fungal examples * '' Gymnosporangium'' (Cedar-apple rust): the juniper is the primary ( telial) host and the apple, pear Pears are fruits produced and consumed around the world, growing on a tree and harvested in late summer into mid-autumn. The pear tree and shrub are a species of genus ''Pyrus'' , in the Family (biology), family Rosaceae, bearing the Pome, po ... or hawthorn is the secondary ( aecial) host. * '' C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microbial Culture
A microbiological culture, or microbial culture, is a method of multiplying microbial organisms by letting them reproduce in predetermined culture medium under controlled laboratory conditions. Microbial cultures are foundational and basic diagnostic methods used as research tools in molecular biology. The term ''culture'' can also refer to the microorganisms being grown. Microbial cultures are used to determine the type of organism, its abundance in the sample being tested, or both. It is one of the primary diagnostic methods of microbiology and used as a tool to determine the cause of infectious disease by letting the agent multiply in a predetermined medium. For example, a throat culture is taken by scraping the lining of tissue in the back of the throat and blotting the sample into a medium to be able to screen for harmful microorganisms, such as '' Streptococcus pyogenes'', the causative agent of strep throat. Furthermore, the term culture is more generally used informal ... [...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 evadens'' - Coyote brush 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 Ramsons rust * '' Puccinia striiformis'' - Stripe rust, also k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genera
Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus '' Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should clearly demonstrate both monophyly and validity as a separate lineag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Fungal Disease
Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. Not included are ectoparasites like insects, mites, vertebrates, or other pests that affect plant health by eating plant tissues and causing injury that may admit plant pathogens. The study of plant disease is called plant pathology. Plant pathogens Fungi Most phytopathogenic fungi are Ascomycetes or Basidiomycetes. They reproduce both sexually and asexually via the production of spores and other structures. Spores may be spread long distances by air or water, or they may be soil borne. Many soil inhabiting fungi are capable of living saprotrophically, carrying out the role of their life cycle in the soil. These are facultative saprotrophs. Fungal diseases may be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incertae Sedis
or is a term used for a taxonomy (biology), taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty at specific taxonomic levels is indicated by (of uncertain family), (of uncertain suborder), (of uncertain order) and similar terms. Examples * The fossil plant ''Paradinandra, Paradinandra suecica'' could not be assigned to any family, but was placed ''incertae sedis'' within the order Ericales when described in 2001. * The fossil ''Gluteus minimus (fossil), Gluteus minimus'', described in 1975, could not be assigned to any known animal phylum. The genus is therefore ''incertae sedis'' within the kingdom Animalia. * While it was unclear to which order the New World vultures (family Cathartidae) should be assigned, they were placed in Aves ''incertae sedis''. It was later agreed to place them in a separate order, Cathartiformes. * Boc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mikronegeriaceae
The Zaghouaniaceae are a family of rust fungus genera, some of which have long been considered ''incertae sedis'' in the order Pucciniales, based on the type genus '' Zaghouania''. The classification of fungal taxa based on only morphological characteristics has long been recognised as problematical, so this order was reviewed over a long-term study using three DNA loci (including type species wherever possible) and published in 2021.Aime MC, McTaggart AR (2021) A higher-rank classification for rust fungi, with notes on genera. ''Fungal Syst. Evol.'' 7: 21–47. (Published online 2020 Nov 13. doi: 10.3114/fuse.2021.07.02; available aNCBI Genera In their 2021 review, Aime and McTaggart included the following genera: # ''Achrotelium'' Syd. (1928) # '' Blastospora'' Dietel (1908) (sometimes placed in the Mikronegeriaceae) # '' Botryorhiza'' Whetzel & Olive The olive, botanical name ''Olea europaea'' ("European olive"), is a species of Subtropics, subtropical evergreen tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zaghouaniaceae
The Zaghouaniaceae are a family of rust fungus genera, some of which have long been considered ''incertae sedis'' in the order Pucciniales, based on the type genus '' Zaghouania''. The classification of fungal taxa based on only morphological characteristics has long been recognised as problematical, so this order was reviewed over a long-term study using three DNA loci (including type species wherever possible) and published in 2021.Aime MC, McTaggart AR (2021) A higher-rank classification for rust fungi, with notes on genera. ''Fungal Syst. Evol.'' 7: 21–47. (Published online 2020 Nov 13. doi: 10.3114/fuse.2021.07.02; available aNCBI Genera In their 2021 review, Aime and McTaggart included the following genera: # ''Achrotelium'' Syd. (1928) # '' Blastospora'' Dietel (1908) (sometimes placed in the Mikronegeriaceae) # '' Botryorhiza'' Whetzel & Olive The olive, botanical name ''Olea europaea'' ("European olive"), is a species of Subtropics, subtropical evergreen t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uropyxidaceae
The Uropyxidaceae are a family of rust fungi in the order Pucciniales. The family contains 15 genera and 149 species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), .... Genera *'' Dasyspora'' *'' Didymopsorella'' *'' Dipyxis'' *'' Kimuromyces'' *'' Leucotelium'' *'' Macruropyxis'' *'' Mimema'' *'' Ochropsora'' *'' Phragmopyxis'' *'' Poliomopsis'' *'' Porotenus'' *'' Prospodium'' *'' Sorataea'' *'' Tranzschelia'' *'' Uropyxis'' References External links * Pucciniales Basidiomycota families {{Basidiomycota-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
