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Durandiella Pseudotsugae
Durandiella pseudotsugae is a plant pathogen which causes Dime canker in Douglas-fir The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three va ... trees. References External links Index FungorumUSDA ARS Fungal Database Fungal tree pathogens and diseases Dermateaceae Fungi described in 1962 {{fungus-tree-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pathogen
In biology, a pathogen ( el, πάθος, "suffering", "passion" and , "producer of") in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. The term ''pathogen'' came into use in the 1880s. Typically, the term ''pathogen'' is used to describe an ''infectious'' microorganism or agent, such as a virus, bacterium, protozoan, prion, viroid, or fungus. Small animals, such as helminths and insects, can also cause or transmit disease. However, these animals are usually referred to as parasites rather than pathogens. The scientific study of microscopic organisms, including microscopic pathogenic organisms, is called microbiology, while parasitology refers to the scientific study of parasites and the organisms that host them. There are several pathways through which pathogens can invade a host. The principal pathways have different episodic time frames, but soil has the longest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudotsuga Menziesii
The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three varieties: coast Douglas-fir (''P. menziesii'' var. ''menziesii''), Rocky Mountain Douglas-fir (''P. menziesii'' var. ''glauca'') and Mexican Douglas-fir (''P. menziesii'' var. ''lindleyana''). Despite its common names, it is not a true fir (genus ''Abies''), spruce (genus ''Picea''), or pine (genus ''Pinus''). It is also not a hemlock; the genus name ''Pseudotsuga'' means "false hemlock". Description Douglas-firs are medium-size to extremely large evergreen trees, tall (although only ''Pseudotsuga menziesii var. menziesii'', common name coast Douglas-firs, reach heights near 100 m) and commonly reach in diameter, although trees with diameters of almost exist. The largest coast Douglas-firs regularly live over 500 years, with the oldes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungal Tree 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 fungi' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dermateaceae
The Dermateaceae is a family of cup fungi in the order Helotiales. Most species in this family are plant pathogens but some are saprobes. Genera This is a list of genera in the family, based on the 2007 Outline of Ascomycota. '' Aivenia'' — '' Angelina'' — '' Anthopsis'' — '' Ascluella'' — ''Atropellis'' — '' Belonopsis'' — '' Blumeriella'' — '' Calloria'' — '' Calloriella'' — ''Cashiella'' — ''Cejpia'' — '' Chaetonaevia'' — ''Chlorosplenium'' — '' Coleosperma'' — ''Coronellaria'' — ''Crustomollisia'' — ''Cryptohymenium'' — ''Dennisiodiscus'' — ''Dermateopsis'' — ''Dermea'' — ''Dibeloniella'' — ''Diplocarpa'' — ''Diplocarpon'' — ''Diplonaevia'' — ''Discocurtisia'' — ''Discohainesia'' — '' Drepanopeziza'' — '' Duebenia'' — '' Durandiella'' — '' Eupropolella'' — '' Felisbertia'' — '' Graddonia'' &m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
