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Goniothalamus Tamirensis
''Goniothalamus tamirensis'' is a species of plant in the family Annonaceae. It is native to Cambodia, Laos, Peninsular Malaysia, Thailand and Vietnam. The French botanists J.B. Louis Pierre and François Gagnepain, who first formally described the species, named it after the region in Cambodia it was collected from, which they record as “monts Tamir”. Description It is a small tree reaching 3-4 meters in height. Its young branches have dense red, velvety hairs. Older branches are black. Its densely hairy petioles are 7-8 millimeter long and have a channel. Its elliptical leaves are 12-17 by 3.7-4.7 centimeters with tips that taper to a point and bases that taper to their petioles. The upper surfaces of the leaves are hairless, the undersides have red wooly hairs. Its flowers are solitary or in pairs and are born on rudimentary, 5 millimeter-long peduncles that occur in axillary positions. Its 3 triangular sepals are fused at the base. The sepals are hairless insid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean Baptiste Louis Pierre
Jean Baptiste Louis Pierre (23 October 1833 – 30 October 1905), also known as J. B. Louis Pierre, was a French botanist known for his Asian studies. Early life Pierre was born in Saint-André, Réunion, and studied in Paris before working in the botanical gardens of Calcutta, India. Career In 1864 he founded the Saigon Zoo and Botanical Gardens, which he directed until 1877. Afterward, he returned to Paris and lived at 63 rue Monge, near the Paris Herbarium. In 1883, he moved to Charenton, then to Villeneuve-Saint-Georges, then (circa 1893) to Saint-Mandé. Finally, he settled at 18 rue Cuvier in Paris, where he resided until his death. Pierre made many scientific explorations in tropical Asia. His publications include the ''Flore forestière de la Cochinchine'' (1880-1907), an article "Sur les plantes à caoutchouc de l'Indochine" (''Revue des cultures coloniales'', 1903) and the section on Sapotaceae in the ''Notes botaniques'' (1890-1891). Several genera have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dehiscence (botany)
Dehiscence is the splitting of a mature plant structure along a built-in line of weakness to release its contents. This is common among fruits, anthers and sporangia. Sometimes this involves the complete detachment of a part; structures that open in this way are said to be dehiscent. Structures that do not open in this way are called indehiscent, and rely on other mechanisms such as decay or predation to release the contents. A similar process to dehiscence occurs in some flower buds (e.g., ''Platycodon'', ''Fuchsia''), but this is rarely referred to as dehiscence unless wikt:circumscissile, circumscissile dehiscence is involved; anthesis is the usual term for the opening of flowers. Dehiscence may or may not involve the loss of a structure through the process of abscission. The lost structures are said to be wikt:caducous, caducous. Association with crop breeding Manipulation of dehiscence can improve crop yield since a Trait (biological), trait that causes seed dispersal i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Jean Baptiste Louis Pierre
In biology, a taxon ( back-formation from '' taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Described In 1906
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have lost the ability ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Vietnam
The wildlife of Vietnam is rich in flora and fauna as reflected by its unique biodiversity. Rare and endemic antelope-like animal, categorized under the bovine subfamily, was found in 1992, in Bạch Mã National Park. In the 1990s, three other large mammal species, the deer-like Truong Son muntjac, giant muntjac and Pu Hoat muntjac, were also discovered, the first two in the same park. Conservation protection and scientific studies of the ecology of Vietnam, particularly in the protected forest areas, have been given priority attention by the Government of Vietnam. Laws were enacted to set up Xuân Thủy Wetland National Park, four UNESCO Biosphere Reserves, and Hạ Long Bay and Phong Nha-Kẻ Bàng National Parks; the last two are also designated as UNESCO World Heritage Sites. The rich diversity of Vietnam's wildlife includes 11,400 species of vascular plants, 1030 species of moss, 310 species of mammals, 296 reptile species, 162 amphibian species, 700 freshwater species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Thailand
''Flora of Thailand'' is a multi-volume flora describing the vascular plants of Thailand, published by the Forest Herbarium, Royal Forest Department since the 1970s. It currently consists of 12 volumes. Volumes *Volume 1 – not yet published *Volume 2(1-4) – Actinidiaceae, Apostasiaceae, Balanophoraceae, Bonnetiaceae, Cannabidaceae, Cardiopteridaceae, Casuarinaceae, Centrolepidaceae, Cephalotaxaceae, Connaraceae, Cupressaceae, Cycadaceae, Dilleniaceae, Ebenaceae, Elaeocarpaceae, Flagellariaceae, Gnetaceae, Goodeniaceae, Haloragaceae, Hanguanaceae, Hippocastanaceae, Icacinaceae, Illliciaceae, Irvingiaceae, Juncaceae, Lowiaceae, Magnoliaceae, Nyssaceae, Ochnaceae, Oxalidaceae, Pinaceae, Podocarpaceae, Portulacaceae, Rafflesiaceae, Restionaceae, Rhizophoraceae, Rosaceae, Saurauiaceae, Schisandraceae, Simaroubaceae, Smilacaceae, Sphenocleaceae, Stylidiaceae, Symplocaceae, Theaceae, Triuridaceae. *Volume 3(1) (1979) – Psilotaceae, Lycopodiaceae, Selaginellaceae, Isoetaceae, Equiset ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Peninsular Malaysia
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Laos
The wildlife of Laos encompasses the animals and plants found in the Lao People's Democratic Republic, a landlocked country in southeastern Asia. Part of the country is mountainous and much of it is still clad in tropical broadleaf forest. It has a great variety of animal and plant species. Geography Laos is a land-locked country located in southeastern Asia. The northern part is mountainous, with the Luang Prabang Range separating the northwestern part of the country from Thailand. The Xiangkhoang Plateau separates these mountains from the Annamite Range, a chain of mountains which run parallel with the Vietnamese coast, and mark the easternmost boundary of the country. The west of the country is mostly bounded by the broad Mekong River, and the south is the Bolaven Plateau at some above sea level. Laos lies in the monsoon belt and experiences a rainy seasons between May and November when much rain falls, and a dry season without rain from December to April. This results in a natu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Cambodia
The wildlife of Cambodia is very diverse with at least 162 mammal species, 600 bird species, 176 reptile species (including 89 subspecies), 900 freshwater fish species, 670 invertebrate species, and more than 3000 plant species. A single protected area, Keo Seima Wildlife Sanctuary, is known to support more than 950 total species, including 75 species that are listed as globally threatened on the IUCN Red List. An unknown amount of species remains to be described by science, especially the insect group of butterflies and moths, collectively known as lepidopterans.REPORT 4 Fauna and flora diversity studies in Botum Sakor National Park, Cambodia April 2005 – September 2009 Frontier Cambodia, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goniothalamus
''Goniothalamus'' is one of the largest palaeotropical genera of plant in family Annonaceae. Iban people beliefs It is believed by the Iban people that when burnt it repels mosquitoes because of its strong scent and thick smoke it creates. It is also believed to repel evil spirits, it is mostly burned during the night and on days where it is both hot and rainy. Species list It contains the following species (divided according to Floristic Region): Fijian Region ( Fiji and New Hebrides) * ''Goniothalamus monospermus'' (A.Gray) R.M.K.Saunders Indian Region (India and Sri Lanka) * ''Goniothalamus gardneri'' Hook.f. & Thomson * ''Goniothalamus hookeri'' Thwaites * ''Goniothalamus rhynchantherus'' Dunn * ''Goniothalamus salicina'' Hook.f. & Thomson * ''Goniothalamus simonsii'' Hook.f. & Thomson * ''Goniothalamus thwaitesii'' Hook.f. & Thomson * ''Goniothalamus wynaadensis'' Bedd. * ''Goniothalamus meeboldii'' Craib Indochinese Region (South China extending into North Vietnam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osteoblasts
Osteoblasts (from the Greek language, Greek combining forms for "bone", ὀστέο-, ''osteo-'' and βλαστάνω, ''blastanō'' "germinate") are cell (biology), cells with a single Cell nucleus, nucleus that synthesize bone. However, in the process of bone formation, osteoblasts function in groups of connected cells. Individual cells cannot make bone. A group of organized osteoblasts together with the bone made by a unit of cells is usually called the osteon. Osteoblasts are specialized, terminally differentiated products of mesenchymal stem cells. They synthesize dense, crosslinked collagen and specialized proteins in much smaller quantities, including osteocalcin and osteopontin, which compose the organic matrix of bone. In organized groups of disconnected cells, osteoblasts produce hydroxylapatite, the bone mineral, that is deposited in a highly regulated manner, into the organic matrix forming a strong and dense mineralized tissues, mineralized tissue, the mineralized mat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitogenic
A mitogen is a small bioactive protein or peptide that induces a cell to begin cell division, or enhances the rate of division (mitosis). Mitogenesis is the induction (triggering) of mitosis, typically via a mitogen. The mechanism of action of a mitogen is that it triggers signal transduction pathways involving mitogen-activated protein kinase (MAPK), leading to mitosis. The cell cycle Mitogens act primarily by influencing a set of proteins which are involved in the restriction of progression through the cell cycle. The G1 checkpoint is controlled most directly by mitogens: further cell cycle progression does not need mitogens to continue. The point where mitogens are no longer needed to move the cell cycle forward is called the "restriction point" and depends on cyclins to be passed.Bohmer et al. "Cytoskeletal Integrity Is Required throughout the Mitogen Stimulation Phase of the Cell Cycle and Mediates the Anchorage-dependent Expression of Cyclin DI". January 1996, Molecular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
