- Parallel up-regulation of the profilin gene family following independent domestication of diploid and allopolyploid cotton (Gossypium)
[作者:Bao, Y; Hu, GJ; Flagel, LE; Salmon, A; Bezanilla, M; Paterson, AH; Wang, ZN; Wendel, JF,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:21152-21157 , 文章类型: Article,,卷期:2011年108-52]
- Cotton is remarkable among our major crops in that four species were independently domesticated, two allopolyploids and two diploids. In each case thousands of years of human selection transformed sparsely flowering, per...
- Direct evidence of quantum transport in photosynthetic light-harvesting complexes
[作者:Panitchayangkoon, G; Voronine, DV; Abramavicius, D; Caram, JR; Lewis, NHC; Mukamel, S; Engel, GS,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:20908-20912 , 文章类型: Article,,卷期:2011年108-52]
- The photosynthetic light-harvesting apparatus moves energy from absorbed photons to the reaction center with remarkable quantum efficiency. Recently, long-lived quantum coherence has been proposed to influence efficiency...
- Chemoresponsive alternating supramolecular copolymers created from heterocomplementary calix[4]pyrroles
[作者:Park, JS; Yoon, KY; Kim, DS; Lynch, VM; Bielawski, CW; Johnston, KP; Sessler, JL,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:20913-20917 , 文章类型: Article,,卷期:2011年108-52]
- The importance of noncovalent interactions in the realm of biological materials continues to inspire efforts to create artificial supramolecular polymeric architectures. These types of self-assembled materials hold great...
- Ultrahydrous stishovite from high-pressure hydrothermal treatment of SiO(2)
[作者:Spektor, K; Nylen, J; Stoyanov, E; Navrotsky, A; Hervig, RL; Leinenweber, K; Holland, GP; Haussermann, U,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:20918-20922 , 文章类型: Article,,卷期:2011年108-52]
- Stishovite (SiO(2) with the rutile structure and octahedrally coordinated silicon) is an important high-pressure mineral. It has previously been considered to be essentially anhydrous. In this study, hydrothermal treatme...
- Cumulative impacts of mountaintop mining on an Appalachian watershed
[作者:Lindberg, TT; Bernhardt, ES; Bier, R; Helton, AM; Merola, RB; Vengosh, A; Di Giulio, RT,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:20929-20934 , 文章类型: Article,,卷期:2011年108-52]
- Mountaintop mining is the dominant form of coal mining and the largest driver of land cover change in the central Appalachians. The waste rock from these surface mines is disposed of in the adjacent river valleys, leadin...
- Role of structurally and magnetically modified nanoclusters in colossal magnetoresistance
[作者:Tao, J; Niebieskikwiat, D; Jie, Q; Schofield, MA; Wu, LJ; Li, Q; Zhu, YM,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:20941-20946 , 文章类型: Article,,卷期:2011年108-52]
- It is generally accepted that electronic and magnetic phase separation is the origin of many of exotic properties of strongly correlated electron materials, such as colossal magnetoresistance (CMR), an unusually large va...
- Low-affinity cation transporter (OsLCT1) regulates cadmium transport into rice grains
[作者:Uraguchi, S; Kamiya, T; Sakamoto, T; Kasai, K; Sato, Y; Nagamura, Y; Yoshida, A; Kyozuka, J; Ishikawa, S; Fujiwara, T,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:20959-20964 , 文章类型: Article,,卷期:2011年108-52]
- Accumulation of cadmium (Cd) in rice (Oryza sativa L.) grains poses a potential health problem, especially in Asia. Most Cd in rice grains accumulates through phloem transport, but the molecular mechanism of this transpo...
- Genomic analysis, cytokine expression, and microRNA profiling reveal biomarkers of human dietary zinc depletion and homeostasis
[作者:Ryu, MS; Langkamp-Henken, B; Chang, SM; Shankar, MN; Cousins, RJ,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:20970-20975 , 文章类型: Article,,卷期:2011年108-52]
- Implementation of zinc interventions for subjects suspected of being zinc-deficient is a global need, but is limited due to the absence of reliable biomarkers. To discover molecular signatures of human zinc deficiency, a...
- Dextran hydrogel scaffolds enhance angiogenic responses and promote complete skin regeneration during burn wound healing
[作者:Sun, GM; Zhang, XJ; Shen, YI; Sebastian, R; Dickinson, LE; Fox-Talbot, K; Reinblatt, M; Steenbergen, C; Harmon, JW; Gerecht, S,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:20976-20981 , 文章类型: Article,,卷期:2011年108-52]
- Neovascularization is a critical determinant of wound-healing outcomes for deep burn injuries. We hypothesize that dextran-based hydrogels can serve as instructive scaffolds to promote neovascularization and skin regener...
- Protein conformational dynamics in the mechanism of HIV-1 protease catalysis
[作者:Torbeev, VY; Raghuraman, H; Hamelberg, D; Tonelli, M; Westler, WM; Perozo, E; Kent, SBH,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:20982-20987 , 文章类型: Article,,卷期:2011年108-52]
- We have used chemical protein synthesis and advanced physical methods to probe dynamics-function correlations for the HIV-1 protease, an enzyme that has received considerable attention as a target for the treatment of AI...
- Solar hydrogen-producing bionanodevice outperforms natural photosynthesis
[作者:Lubner, CE; Applegate, AM; Knorzer, P; Ganago, A; Bryant, DA; Happe, T; Golbeck, JH,期刊:Proceedings of the National Academy of Sciences of the United States of America, 页码:20988-20991 , 文章类型: Article,,卷期:2011年108-52]
- Although a number of solar biohydrogen systems employing photosystem I (PSI) have been developed, few attain the electron transfer throughput of oxygenic photosynthesis. We have optimized a biological/organic nanoconstru...
|