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Cow Wheat
''Melampyrum'' is a genus of about 20 species of herbaceous flowering plants in the family Orobanchaceae known commonly as cow wheat. They are native to temperate regions of the Northern Hemisphere. They are parasite, hemiparasites on other plants, obtaining water and nutrients from host plants, though they are able to survive on their own without parasitising other plants.Kim, K. and S. Yun. (2012)A new species of ''Melampyrum'' (Orobanchaceae) from southern Korea.''Phytotaxa'' 42 48-50. ''Melampyrum'' species are used as food plants by the larvae of some Lepidoptera species, including the mouse moth (''Amphipyra tragopoginis''). Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Melampyrum'' appears as a distant relative of other genera of Rhinantheae. It is the sister group of two clades: (i) ''Rhynchocorys'', ''Lathraea'', and ''Rhinanthus'' ; and (ii) the core Rhinantheae containing ''Bartsia'', ''Euphrasia'', ''Tozzia'', ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melampyrum Nemorosum
''Melampyrum nemorosum'' is an herbaceous plant, herbaceous flowering plant in the family Orobanchaceae. It is native to Europe. In Sweden it is called ''natt och dag''. (''Night and Day'')''Melampyrum nemorosum''. Invasive Species Compendium. CABI. In Russia it is called ''Ivan-da-Marya''. (''Ivan (name), Ivan and Maria (given name), Maria'') a Christianisation of the traditional Slavic Kostroma (deity), Kupalo-da-Mavka (Kupalo-and-Mavka). This is an annual plant. The new leaves are blue, turning green as they mature. They are usually toothed at the bases. This plant is a host to the Rust (fungus), rust fungus ''Coleosporium melampyri'' Peter Zwetko: [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedbergia
''Hedbergia'' is a monotypic genus of flowering plants, initially classified in Scrophulariaceae, and now within the broomrape family Orobanchaceae. It contains a unique species, ''Hedbergia abyssinica''. It is an afromontane genus, widespread in grasslands and scrubs of the mountains of tropical Africa, and known from Ethiopia, Zaire, Uganda, Kenya, Tanzania, Malawi, Nigeria, and Cameroons. The genus name is a taxonomic patronym honoring the Swedish botanist Karl Olov Hedberg. Description ''Hedbergia abyssinica'' is a high, very hispid perennial plant, with subsessile thick leaves, and densely crowded, white to pink or magenta flowers. Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Hedbergia'' belongs to the core Rhinantheae. ''Hedbergia'' is closely related to ''Odontites'', '' Bellardia'', and ''Tozzia''. In turn, these genera share phylogenetic affinities with ''Euphrasia'', and then with ''Bartsia ''Bartsia'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melampyrum Lineare
''Melampyrum lineare'', commonly called the narrowleaf cow wheat, is an herbaceous plant in the family Orobanchaceae. It is native to North America, where it is found in southern Canada and the northern United States, with an extension south in the Appalachian Mountains. It has a wide habitat tolerance, but is usually found in drier and somewhat exposed woodlands. This species is hemiparasitic A parasitic plant is a plant that derives some or all of its nutritional requirements from another living plant. They make up about 1% of angiosperms and are found in almost every biome. All parasitic plants develop a specialized organ called the ..., meaning it receives energy from both photosynthesis and root parasitism. It is an herbaceous plant that grows in clumps about a 12 inches high. Its leaves are opposite and lanceolate to linear. It produces tubular cream-colored flowers in the summer. Taxonomy Four varieties have been considered. However, recent studies have cast doubt at th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melampyrum Laxum
''Melampyrum'' is a genus of about 20 species of herbaceous flowering plants in the family Orobanchaceae known commonly as cow wheat. They are native to temperate regions of the Northern Hemisphere. They are hemiparasites on other plants, obtaining water and nutrients from host plants, though they are able to survive on their own without parasitising other plants.Kim, K. and S. Yun. (2012)A new species of ''Melampyrum'' (Orobanchaceae) from southern Korea.''Phytotaxa'' 42 48-50. ''Melampyrum'' species are used as food plants by the larvae of some Lepidoptera species, including the mouse moth (''Amphipyra tragopoginis''). Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Melampyrum'' appears as a distant relative of other genera of Rhinantheae. It is the sister group of two clades: (i) ''Rhynchocorys'', ''Lathraea'', and ''Rhinanthus'' ; and (ii) the core Rhinantheae containing ''Bartsia'', ''Euphrasia'', ''Tozzia'', ''Hedbergi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melampyrum Koreanum
''Melampyrum'' is a genus of about 20 species of herbaceous flowering plants in the family Orobanchaceae known commonly as cow wheat. They are native to temperate regions of the Northern Hemisphere. They are hemiparasites on other plants, obtaining water and nutrients from host plants, though they are able to survive on their own without parasitising other plants.Kim, K. and S. Yun. (2012)A new species of ''Melampyrum'' (Orobanchaceae) from southern Korea.''Phytotaxa'' 42 48-50. ''Melampyrum'' species are used as food plants by the larvae of some Lepidoptera species, including the mouse moth (''Amphipyra tragopoginis''). Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Melampyrum'' appears as a distant relative of other genera of Rhinantheae. It is the sister group of two clades: (i) ''Rhynchocorys'', ''Lathraea'', and ''Rhinanthus'' ; and (ii) the core Rhinantheae containing ''Bartsia'', ''Euphrasia'', ''Tozzia'', ''Hedbergi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area of , about 30% of Earth's total land area and 8.7% of Earth's total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. Its 4.7 billion people constitute roughly 60% of the world's population. In general terms, Asia is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean, and on the north by the Arctic Ocean. The border of Asia with Europe is a historical and cultural construct, as there is no clear physical and geographical separation between them. It is somewhat arbitrary and has moved since its first conception in classical antiquity. The division of Eurasia into two continents reflects East–West cultural, linguistic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melampyrum Klebelsbergianum
''Melampyrum'' is a genus of about 20 species of herbaceous flowering plants in the family Orobanchaceae known commonly as cow wheat. They are native to temperate regions of the Northern Hemisphere. They are hemiparasites on other plants, obtaining water and nutrients from host plants, though they are able to survive on their own without parasitising other plants.Kim, K. and S. Yun. (2012)A new species of ''Melampyrum'' (Orobanchaceae) from southern Korea.''Phytotaxa'' 42 48-50. ''Melampyrum'' species are used as food plants by the larvae of some Lepidoptera species, including the mouse moth (''Amphipyra tragopoginis''). Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Melampyrum'' appears as a distant relative of other genera of Rhinantheae. It is the sister group of two clades: (i) ''Rhynchocorys'', ''Lathraea'', and ''Rhinanthus'' ; and (ii) the core Rhinantheae containing ''Bartsia'', ''Euphrasia'', ''Tozzia'', ''Hedbergi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melampyrum Cristatum
''Melampyrum cristatum'', also known as Crested cow-wheat is a species of flowering plant belonging to the family Orobanchaceae. Description ''M. cristatum'' is an annual herb species which reaches heights of 15-40cm. Stems are erect and reddish green in colour. Leaves are 5-10cm long, almost stalkless and are narrowly elliptic in shape. Flowers are tubular and purple, however the lips of the flower are yellow. ''M. cristatum'' flowers from July to August. Seeds are produced inside 10mm long, flat capsules. Seeds possess soft, oily, elaiosomes, which are collected, eaten and distributed by ants. Distribution ''M. cristatum'' is native to the following places: Albania, Altai, Austria, the Baltic States, Belarus, Belgium, Bulgaria, Corsica, Crete, Czech Republic, Denmark, Finland, France, Germany, Great Britain, Hungary, Italy, Kazakhstan, North Caucasus, Norway, Poland, Romania, Russia, Siberia (western), Slovakia, Spain, Sweden, Switzerland, Turkey (European), Ukraine, Y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia and it is located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. Comprising the westernmost peninsulas of Eurasia, it shares the continental landmass of Afro-Eurasia with both Africa and Asia. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south and Asia to the east. Europe is commonly considered to be Boundaries between the continents of Earth#Asia and Europe, separated from Asia by the drainage divide, watershed of the Ural Mountains, the Ural (river), Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea and the waterways of the Turkish Straits. "Europe" (pp. 68–69); "Asia" (pp. 90–91): "A commonly accepted division between Asia and E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melampyrum Arvense
''Melampyrum arvense'', commonly known as field cow-wheat, is an herbaceous flowering plant of the genus ''Melampyrum'' in the family Orobanchaceae. It is striking because of the conspicuous spike of pink or purple terminal bracts which includes the flowers. The Latin specific epithet ''arvense'' means "growing in cultivated fields". Description The upright stems of this species, which may branch, are terminated by a spike of pink to purple bracts amongst which the tubular flowers appear. Younger, lower bracts are green however, as the pink/purple colour appears and deepens only with time. The plant grows up to 40 or 60 cm high. The ordinary leaves are lanceolate and opposite and may have short teeth. The bracts are also lanceolate and have long teeth up to 8 mm. The flowers are two-lipped with a closed throat and are 2 – 2.5 cm long. They are pink to purple with a yellow or white patch. Distribution, season, ecology This European plant flowers from Ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internal Transcribed Spacer
Internal transcribed spacer (ITS) is the spacer DNA situated between the small-subunit ribosomal RNA (rRNA) and large-subunit rRNA genes in the chromosome or the corresponding transcribed region in the polycistronic rRNA precursor transcript. ITS across life domains In bacteria and archaea, there is a single ITS, located between the 16S and 23S rRNA genes. Conversely, there are two ITSs in eukaryotes: ITS1 is located between 18S and 5.8S rRNA genes, while ITS2 is between 5.8S and 28S (in opisthokonts, or 25S in plants) rRNA genes. ITS1 corresponds to the ITS in bacteria and archaea, while ITS2 originated as an insertion that interrupted the ancestral 23S rRNA gene. Organization In bacteria and archaea, the ITS occurs in one to several copies, as do the flanking 16S and 23S genes. When there are multiple copies, these do not occur adjacent to one another. Rather, they occur in discrete locations in the circular chromosome. It is not uncommon in bacteria to carry tRN ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloroplast DNA
Chloroplast DNA (cpDNA) is the DNA located in chloroplasts, which are photosynthetic organelles located within the cells of some eukaryotic organisms. Chloroplasts, like other types of plastid, contain a genome separate from that in the cell nucleus. The existence of chloroplast DNA was identified biochemically in 1959, and confirmed by electron microscopy in 1962. The discoveries that the chloroplast contains ribosomes and performs protein synthesis revealed that the chloroplast is genetically semi-autonomous. The first complete chloroplast genome sequences were published in 1986, ''Nicotiana tabacum'' (tobacco) by Sugiura and colleagues and ''Marchantia polymorpha'' (liverwort) by Ozeki et al. Since then, a great number of chloroplast DNAs from various species have been sequenced. Molecular structure Chloroplast DNAs are circular, and are typically 120,000–170,000 base pairs long. They can have a contour length of around 30–60 micrometers, and have a mass of about 80â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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