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Detlef Weigel
Detlef Weigel (born 1961 in Lower Saxony, Germany) is a German American scientist working at the interface of developmental and evolutionary biology. Education Weigel was an undergraduate in biology and chemistry at the universities of Bielefeld and Cologne. In 1986, he graduated with a Diploma in biology for this thesis on Drosophila neurogenesis with the late José Campos-Ortega. In 1988, he moved to the Max Planck Institute for Developmental Biology in Tübingen. During his PhD work with , he discovered the founding member of an important class of transcription factors, the Forkhead/FOX proteins. In 1988, he graduated with a PhD (summa cum laude) from the University of Tübingen. Career and research Weigel began to work with plants during his postdoctoral research with Elliot M. Meyerowitz at Caltech, where he cloned the floral regulator ''LEAFY'' from ''Arabidopsis thaliana''. From 1993 to 2002, he was an Assistant and then Associate Professor at the Salk Institute for Biolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dannenberg (Elbe)
Dannenberg is a town in the district Lüchow-Dannenberg, in Lower Saxony, Germany. It is situated on the river Jeetzel, approx. 30 km north of Salzwedel, and 50 km south-east of Lüneburg. Dannenberg has a population of 8,147 inhabitants (December 2010). Dannenberg is located on the German Timber-Frame Road. It is the seat of the ''Samtgemeinde'' ("collective municipality") Elbtalaue. It has a soccer team which plays in the regional league, TSV Dannenberg. The actual history of the town began with the construction of the castle (first mentioned in 1153) during the rule of Volrad I, Count of Dannenberg (1153–1169), who had been given the task of settling and securing the territory by Duke Henry the Lion. The Waldemarturm is a local historical landmark, a tower in which the Danish King Valdemar II was imprisoned from 1223–1224. After World War II, Dannenberg was part of West Germany. However, it is situated very close to the Elbe river, which served as the border ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neurogenesis
Neurogenesis is the process by which nervous system cells, the neurons, are produced by neural stem cells (NSCs). It occurs in all species of animals except the porifera (sponges) and placozoans. Types of NSCs include neuroepithelial cells (NECs), radial glial cells (RGCs), basal progenitors (BPs), intermediate neuronal precursors (INPs), subventricular zone astrocytes, and subgranular zone radial astrocytes, among others. Neurogenesis is most active during embryonic development and is responsible for producing all the various types of neurons of the organism, but it continues throughout adult life in a variety of organisms. Once born, neurons do not divide (see mitosis), and many will live the lifespan of the animal. Neurogenesis in mammals Developmental neurogenesis During embryonic development, the mammalian central nervous system (CNS; brain and spinal cord) is derived from the neural tube, which contains NSCs that will later generate neurons. However, neurogenesis does ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Jolla
La Jolla ( , ) is a hilly, seaside neighborhood within the city of San Diego, California, United States, occupying of curving coastline along the Pacific Ocean. The population reported in the 2010 census was 46,781. La Jolla is surrounded on three sides by ocean bluffs and beaches and is located north of Downtown San Diego and south of the Orange County, California, Orange County line. The climate is mild, with an average daily temperature of . La Jolla is home to many educational institutions and a variety of businesses in the areas of lodging, dining, shopping, software, finance, real estate, bioengineering, medical practice and scientific research. The University of California, San Diego (UCSD) is located in La Jolla, as are the Salk Institute for Biological Studies, Salk Institute, Scripps Institution of Oceanography (part of UCSD), Scripps Research Institute, and the headquarters of National University (California), National University (though its academic campuses are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salk Institute For Biological Studies
The Salk Institute for Biological Studies is a scientific research institute located in the La Jolla community of San Diego, California, U.S. The independent, non-profit institute was founded in 1960 by Jonas Salk, the developer of the polio vaccine; among the founding consultants were Jacob Bronowski and Francis Crick. Construction of the research facilities began in spring of 1962. The Salk Institute consistently ranks among the top institutions in the US in terms of research output and quality in the life sciences. In 2004, the ''Times Higher Education Supplement'' ranked Salk as the world's top biomedicine research institute, and in 2009 it was ranked number one globally by ''Clarivate, ScienceWatch'' in the neuroscience and behavior areas. The Salk Institute employs 850 researchers in 60 research groups and focuses its research in three areas: molecular biology and genetics; neurosciences; and plant biology. Research topics include aging, cancer, diabetes, birth defects, Alzhe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arabidopsis Thaliana
''Arabidopsis thaliana'', the thale cress, mouse-ear cress or arabidopsis, is a small flowering plant native to Eurasia and Africa. ''A. thaliana'' is considered a weed; it is found along the shoulders of roads and in disturbed land. A winter annual with a relatively short lifecycle, ''A. thaliana'' is a popular model organism in plant biology and genetics. For a complex multicellular eukaryote, ''A. thaliana'' has a relatively small genome around 135 mega base pairs. It was the first plant to have its genome sequenced, and is a popular tool for understanding the molecular biology of many plant traits, including flower development and light sensing. Description ''Arabidopsis thaliana'' is an annual (rarely biennial) plant, usually growing to 20–25 cm tall. The leaves form a rosette at the base of the plant, with a few leaves also on the flowering stem. The basal leaves are green to slightly purplish in color, 1.5–5 cm long, and 2–10 mm broad, with an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LEAFY
LEAFY (abbreviated LFY) is a plant gene that causes groups of undifferentiated Cell (biology), cells called meristems to develop into flowers instead of leaves with associated shoots. ''LEAFY'' is involved in floral meristem identity. ''LEAFY'' encodes a plant-specific transcription factor, is found in all land plants and in charophytes and one of its exons have been used extensively in phylogenetic work on spermatophytes. When the gene is Overexpression, overexpressed, the plant is less sensitive to environmental signals and flowers earlier. The LEAFY protein has two conserved domains: the DNA binding domain, a Helix-turn-helix, Helix-Turn-Helix motif buried inside a unique 7-helix fold and a Sterile alpha motif, Sterile Alpha Motif. It binds DNA as a dimer and its binding site has been identified both in vivo and in vitro. References {{reflist Plant development Plant genes Mutation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cloned
Cloning is the process of producing individual organisms with identical or virtually identical DNA, either by natural or artificial means. In nature, some organisms produce clones through asexual reproduction. In the field of biotechnology, cloning is the process of creating cloned organisms (copies) of cells and of DNA fragments (molecular cloning). Etymology Coined by Herbert J. Webber, the term clone derives from the Ancient Greek word (), ''twig'', which is the process whereby a new plant is created from a twig. In botany, the term ''lusus'' was used. In horticulture, the spelling ''clon'' was used until the early twentieth century; the final ''e'' came into use to indicate the vowel is a "long o" instead of a "short o". Since the term entered the popular lexicon in a more general context, the spelling ''clone'' has been used exclusively. Natural cloning Cloning is a natural form of reproduction that has allowed life forms to spread for hundreds of millions of years. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Institute Of Technology
The California Institute of Technology (branded as Caltech or CIT)The university itself only spells its short form as "Caltech"; the institution considers other spellings such a"Cal Tech" and "CalTech" incorrect. The institute is also occasionally referred to as "CIT", most notably in its alma mater, but this is uncommon. is a private research university in Pasadena, California. Caltech is ranked among the best and most selective academic institutions in the world, and with an enrollment of approximately 2400 students (acceptance rate of only 5.7%), it is one of the world's most selective universities. The university is known for its strength in science and engineering, and is among a small group of institutes of technology in the United States which is primarily devoted to the instruction of pure and applied sciences. The institution was founded as a preparatory and vocational school by Amos G. Throop in 1891 and began attracting influential scientists such as George Ellery H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elliot M
Elliot (also spelled Eliot, Elliotte, Elliott, Eliott and Elyot) is a personal name which can serve as either a surname or a given name. Although the given name has historically been given to males, females have increasingly been given the name as well in the United States. Surname origin Differences in spelling can be distinguished in this rhyme: The double L and single T / Descent from Minto and Wolflee, / The double T and single L / Mark the old race in Stobs that dwell. / The single L and single T / The Eliots of St Germans be, / But double T and double L, / Who they are nobody can tell. Scotland The origin of the Scottish surname is obscure, due to much of the genealogy of the Eliott clan being burnt in the destruction of the castle at Stobs in 1712. The clan society usually accepts that the name originated from the town and river Elliot in Angus, Scotland. Other sources claim that the Scottish surnames (Eliott, Elliot) originate from the Ellot Scottish border-clan, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Postdoctoral
A postdoctoral fellow, postdoctoral researcher, or simply postdoc, is a person professionally conducting research after the completion of their doctoral studies (typically a PhD). The ultimate goal of a postdoctoral research position is to pursue additional research, training, or teaching in order to have better skills to pursue a career in academia, research, or any other field. Postdocs often, but not always, have a temporary academic appointment, sometimes in preparation for an academic faculty position. They continue their studies or carry out research and further increase expertise in a specialist subject, including integrating a team and acquiring novel skills and research methods. Postdoctoral research is often considered essential while advancing the scholarly mission of the host institution; it is expected to produce relevant publications in peer-reviewed academic journals or conferences. In some countries, postdoctoral research may lead to further formal qualificati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants
Plants are predominantly Photosynthesis, photosynthetic eukaryotes of the Kingdom (biology), 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 Glaucophyte, Glaucophyta, and consists of the green algae and Embryophyte, Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and Fern ally, 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 colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Summa Cum Laude
Latin honors are a system of Latin phrases used in some colleges and universities to indicate the level of distinction with which an academic degree has been earned. The system is primarily used in the United States. It is also used in some Southeastern Asian countries with European colonial history, such as Indonesia and the Philippines, although sometimes translations of these phrases are used instead of the Latin originals. The honors distinction should not be confused with the honors degrees offered in some countries, or with honorary degrees. The system usually has three levels of honor: ''cum laude'', ''magna cum laude'', and ''summa cum laude''. Generally, a college or university's regulations set out definite criteria a student must meet to obtain a given honor. For example, the student might be required to achieve a specific grade point average, submit an honors thesis for evaluation, be part of an honors program, or graduate early. Each school sets its own standards. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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