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  • 1
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    Rice perception of symbiotic arbuscular mycorrhizal fungi requires the karrikin receptor complex (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-12-19
    Description: In terrestrial ecosystems, plants take up phosphate predominantly via association with arbuscular mycorrhizal fungi (AMF). We identified loss of responsiveness to AMF in the rice (Oryza sativa) mutant hebiba, reflected by the absence of physical contact and of characteristic transcriptional responses to fungal signals. Among the 26 genes deleted in hebiba, DWARF 14 LIKE is, the one responsible for loss of symbiosis . It encodes an alpha/beta-fold hydrolase, that is a component of an intracellular receptor complex involved in the detection of the smoke compound karrikin. Our finding reveals an unexpected plant recognition strategy for AMF and a previously unknown signaling link between symbiosis and plant development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gutjahr, Caroline -- Gobbato, Enrico -- Choi, Jeongmin -- Riemann, Michael -- Johnston, Matthew G -- Summers, William -- Carbonnel, Samy -- Mansfield, Catherine -- Yang, Shu-Yi -- Nadal, Marina -- Acosta, Ivan -- Takano, Makoto -- Jiao, Wen-Biao -- Schneeberger, Korbinian -- Kelly, Krystyna A -- Paszkowski, Uta -- PDAG/223 T39/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2015 Dec 18;350(6267):1521-4. doi: 10.1126/science.aac9715.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Molecular Biology, University of Lausanne, Biophore Building, 1015 Lausanne, Switzerland. Faculty of Biology, Genetics, University of Munich, Biocenter Martinsried, Grosshaderner Strasse 2-4, 82152 Martinsried, Germany. ; Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK. ; Division of Plant Sciences, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan. Botanical Institute, Molecular Cell Biology, Karlsruhe Institute of Technology, Kaiserstrasse 2, 76131 Karlsruhe, Germany. ; Faculty of Biology, Genetics, University of Munich, Biocenter Martinsried, Grosshaderner Strasse 2-4, 82152 Martinsried, Germany. ; Department of Plant Molecular Biology, University of Lausanne, Biophore Building, 1015 Lausanne, Switzerland. ; Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, D-50829 Cologne, Germany. ; Division of Plant Sciences, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan. ; Department of Plant Molecular Biology, University of Lausanne, Biophore Building, 1015 Lausanne, Switzerland. Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK. up220@cam.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26680197" target="_blank"〉PubMed〈/a〉
    Keywords: Furans/*metabolism ; Hydrolases/genetics/*metabolism ; Mycorrhizae/*physiology ; Oryza/*enzymology/genetics/*microbiology ; Phosphates/metabolism ; Plant Proteins/genetics/*metabolism ; Pyrans/*metabolism ; Symbiosis/genetics/*physiology ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Numerical investigation on pulsating heat pipes with nitrogen or hydrogen (2017)
    Institute of Physics (IOP)
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    Publication Date: 2017-12-30
    Description: With flexible structure and excellent performance, pulsating heat pipes (PHP) are regarded as a great solution to distribute cooling power for cryocoolers. The experiments on PHPs with cryogenic fluids have been carried out, indicating their efficient performances in cryogenics. There are large differences in physical properties between the fluids at room and cryogenic temperature, resulting in their different heat transfer and oscillation characteristics. Up to now, the numerical investigations on cryogenic fluids have rarely been carried out. In this paper, the model of the closed-loop PHP with multiple liquid slugs and vapor plugs is performed with nitrogen and hydrogen as working fluids, respectively. The effects of heating wall temperature on the performance of close-looped PHPs are investigated and compared with that of water PHP.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 3
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    Distributions and relationships of virio- and picoplankton in the epi-, meso- and bathypelagic zones of the Western Pacific Ocean (2016)
    Oxford University Press
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    Publication Date: 2016-12-17
    Description: Virio- and picoplankton mediate important biogeochemical processes and the environmental factors that regulate their dynamics, and the virus–host interactions are incompletely known, especially in the deep sea. Here we report on their distributions and relationships with environmental factors at 21 stations covering a latitudinal range (2–23° N) in the Western Pacific Ocean. This region is characterized by a complex western boundary current system. Synechococcus , autotrophic picoeukaryotes, heterotrophic prokaryotes and virus-like particles (VLPs) were high (〈2.4 x 10 2 –6.3 x 10 4 , 〈34–2.8 x 10 3 , 3.9 x 10 4 –1.3 x 10 6 cells mL –1 and 5.1 x 10 5 –2.7 x 10 7 mL –1 , respectively), and Prochlorococcus were low (〈2.3 x 10 2 –1.0 x 10 5 cells mL –1 ) in the Luzon Strait and the four most southerly stations, where upwelling occurs. Covariations in the abundances of VLPs with heterotrophic and autotrophic picoplankton, and their correlation (i.e. r 2 = 0.63 and 0.52, respectively) suggested a strong host dependence in the epi- and mesopelagic zones. In the bathypelagic zone, only abiotic factors significantly influenced VLPs abundance variation ( r 2 = 0.12). This study shows that the dynamics of virio- and picoplankton in this Western Pacific are controlled by suite of complex and depth-dependent relationship among physical and biological factors that in turn link the physical hydrography of the western boundary current system with microbial-mediated biogeochemical processes.
    Print ISSN: 0168-6496
    Electronic ISSN: 1574-6941
    Topics: Biology
    Published by Oxford University Press
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  • 4
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    Electrokinetic remediation of heavy metals from municipal solid waste incineration fly ash pretreated by nitric acid (2018)
    Royal Society
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    Publication Date: 2018-08-02
    Description: Municipal solid waste incineration (MSWI) fly ash has a high concentration of heavy metals (HMs) which are hazardous to the environment. Moreover, it has high pH and buffering capacity which hinders the removal of HMs. Another constraining factor is the considerable fraction of HMs which exist in oxidizable and reducible states. The acid pretreatment of MSWI fly ash is a key solution to this problem. Therefore, the current experiment is carried out to evaluate the effect of acid pretreatment of MSWI fly ash and reaction/proposed time on the removal efficiency of HMs through an electrokinetic experiment. The leaching experiment results show that acid pretreatment has increased the desorption/release of heavy metal ions (Pb 2+ , Cd 2+ , Cu 2+ and Zn 2+ ). It enhances the migration of HM ions in electrolytic cells which get precipitated at the cathode, thereby increasing the removal efficiency of HMs in the electrokinetic experiment. Moreover, it is found that prolonged proposed time (12 d) has significant effect on the removal efficiency of HMs. Finally, it is concluded that acid pretreatment and prolonged proposed time have enhanced the removal electrokinetic remediation of HMs which is carried out via three processes, i.e. desorption (enhanced by acidification), migration and precipitation.
    Keywords: environmental chemistry, environmental science
    Electronic ISSN: 2054-5703
    Topics: Natural Sciences in General
    Published by Royal Society
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  • 5
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    Numerical investigation on pulsating heat pipes with nitrogen or hydrogen (2017)
    Institute of Physics
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    Publication Date: 2017-12-01
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics
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  • 6
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    In situ supported VOx on carbon nanotubes for the low-temperature selective catalytic reduction of NO with NH3 (2019)
    Institute of Physics
    Details
    Publication Date: 2019-12-13
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics
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