Institution
Washington State University
Education•Pullman, Washington, United States•
About: Washington State University is a education organization based out in Pullman, Washington, United States. It is known for research contribution in the topics: Population & Gene. The organization has 26947 authors who have published 57736 publications receiving 2341509 citations. The organization is also known as: WSU & Wazzu.
Topics: Population, Gene, Poison control, Catalysis, Hordeum vulgare
Papers published on a yearly basis
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01 Jan 1996463 citations
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TL;DR: The cumulative evidence supports a model for the activation of defensive genes in plants in response to insect and pathogen attacks in which various elicitors generated at the attack sites activate the octadecanoid pathway via different recognition events to induce the expression of defensive gene in local and distal tissues of the plants.
Abstract: Jasmonic acid, synthesized from linolenic acid (the octadecanoid pathway), has been proposed to be part of a signal transduction pathway that mediates the induction of defensive genes in plants in response to oligouronide and polypeptide signals generated by insect and pathogen attacks. We report here that the induction of proteinase inhibitor accumulation in tomato leaves by plant-derived oligogalacturonides and fungal-derived chitosan oligosaccharides is severely reduced by two inhibitors (salicylic acid and diethyldi-thiocarbamic acid) of the octadecanoid pathway, supporting a role for the pathway in signaling by oligosaccharides. Jasmonic acid levels in leaves of tomato plants increased several fold within 2 hr after supplying the polypeptide systemin, oligogalacturonides, or chitosan to the plants through their cut stems, as expected if they utilize the octadecanoid pathway. The time course of jasmonic acid accumulation in tomato leaves in response to wounding was consistent with its proposed role in signaling proteinase inhibitor mRNA and protein synthesis. The cumulative evidence supports a model for the activation of defensive genes in plants in response to insect and pathogen attacks in which various elicitors generated at the attack sites activate the octadecanoid pathway via different recognition events to induce the expression of defensive genes in local and distal tissues of the plants.
463 citations
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01 May 2000460 citations
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TL;DR: The photophysical characteristics of the encapsulated fluorophores differ dramatically from those of the same species in solution, making nanoparticle-protected hydrophobic fluorophore attractive materials for potential applications such as optical data storage and switching and biological fluorescent labeling.
Abstract: Polymer nanoparticles of 40−400 nm diameter with spiropyran−merocyanine dyes incorporated into their hydrophobic cavities have been prepared; in contrast to their virtually nonfluorescent character in most environments, the merocyanine forms of the encapsulated dyes are highly fluorescent. Spiro−mero photoisomerization is reversible, allowing the fluorescence to be switched “on” and “off” by alternating UV and visible light. Immobilizing the dye inside hydrophobic pockets of nanoparticles also improves its photostability, rendering it more resistant than the same dyes in solution to fatigue effects arising from photochemical switching. The photophysical characteristics of the encapsulated fluorophores differ dramatically from those of the same species in solution, making nanoparticle-protected hydrophobic fluorophores attractive materials for potential applications such as optical data storage and switching and biological fluorescent labeling. To evaluate the potential for biological tagging, these optica...
460 citations
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University of Copenhagen1, University of Massachusetts Amherst2, University of California, Berkeley3, Wellcome Trust Sanger Institute4, Technical University of Denmark5, Pennsylvania State University6, La Trobe University7, Stanford University8, University of Cambridge9, King Abdullah University of Science and Technology10, Estonian Biocentre11, University of Tartu12, University of California, San Francisco13, Washington State University14, University of Porto15, University of Illinois at Urbana–Champaign16, Carlos III Health Institute17, University of Utah18, Science for Life Laboratory19, Aarhus University20, University College London21, University of Reading22, University of Bristol23, University of Guadalajara24, University of Bologna25, Oregon State University26, University of Paris27, University of Zurich28, St. John's University29, Max Planck Society30, University of California, Irvine31, University of Tarapacá32, University of Toulouse33, Novosibirsk State University34, Russian Academy of Sciences35, Kemerovo State University36, Bashkir State University37, North-Eastern Federal University38, Western Washington University39, Northwest Community College40, Simon Fraser University41, University of Western Ontario42, Laboratory of Molecular Biology43, University of Kansas44, University of California, Davis45, Texas A&M University46, Santa Barbara Museum of Natural History47, Southern Methodist University48
TL;DR: The results suggest that there has been gene flow between some Native Americans from both North and South America and groups related to East Asians and Australo-Melanesians, the latter possibly through an East Asian route that might have included ancestors of modern Aleutian Islanders.
Abstract: How and when the Americas were populated remains contentious. Using ancient and modern genome-wide data, we found that the ancestors of all present-day Native Americans, including Athabascans and Amerindians, entered the Americas as a single migration wave from Siberia no earlier than 23 thousand years ago (ka) and after no more than an 8000-year isolation period in Beringia. After their arrival to the Americas, ancestral Native Americans diversified into two basal genetic branches around 13 ka, one that is now dispersed across North and South America and the other restricted to North America. Subsequent gene flow resulted in some Native Americans sharing ancestry with present-day East Asians (including Siberians) and, more distantly, Australo-Melanesians. Putative "Paleoamerican" relict populations, including the historical Mexican Pericues and South American Fuego-Patagonians, are not directly related to modern Australo-Melanesians as suggested by the Paleoamerican Model.
459 citations
Authors
Showing all 27183 results
Name | H-index | Papers | Citations |
---|---|---|---|
Anil K. Jain | 183 | 1016 | 192151 |
Martin Karplus | 163 | 831 | 138492 |
Herbert A. Simon | 157 | 745 | 194597 |
Suvadeep Bose | 154 | 960 | 129071 |
Rajesh Kumar | 149 | 4439 | 140830 |
Kevin Murphy | 146 | 728 | 120475 |
Jonathan D. G. Jones | 129 | 417 | 80908 |
Douglas E. Soltis | 127 | 612 | 67161 |
Peter W. Kalivas | 123 | 428 | 52445 |
Chris Somerville | 122 | 284 | 45742 |
Pamela S. Soltis | 120 | 543 | 61080 |
Yuehe Lin | 118 | 641 | 55399 |
Howard I. Maibach | 116 | 1821 | 60765 |
Jizhong Zhou | 115 | 766 | 48708 |
Farshid Guilak | 110 | 480 | 41327 |