作者：Fedorova, Iana; Bondy-Denomy, Joseph
作者单位：University of California System; University of California San Francisco
作者：Huang, Tian; Hodgens, Charles; Prakash, Sandhan; Marconi, Marco; Wabnik, Krzysztof; Sozzani, Rosangela; Wagner, Doris
作者单位：University of Pennsylvania; North Carolina State University; North Carolina State University; Universidad Politecnica de Madrid; Consejo Superior de Investigaciones Cientificas (CSIC); Instituto Nacional Investigacion Tecnologia Agraria Alimentaria (INIA); Centro de Investigacion en Biotecnologia Genomica de Plantas (CBGP); Universidad Politecnica de Madrid
摘要：Inflorescences of flowering plants adopt diverse genetically programmed and environmentally tuned architectures. By contrast, continued maintenance of the stem cell pool within the apical meristem is unresponsive to environmental cues. Through a combination of modeling and experimentation in Arabidopsis, we reveal a negative feedback loop that buffers environmental signals. This loop comprises the determinacy-promoting pioneer transcription factor LEAFY (LFY) and the indeterminacy-promoting tr...
作者：Brooks, Robert C.
作者单位：University of New South Wales Sydney; University of New South Wales Sydney
作者：Duncan, Francesca E.; Babayev, Elnur
作者单位：Northwestern University; Feinberg School of Medicine; Buck Institute for Research on Aging
作者：Iwamoto, Takeaki; Ishikawa, Tomoki; Ishida, Shintaro
作者单位：Tohoku University
摘要：Compared with the wide variety of reports on carbon pi-electron compounds, the silicon counterparts remain scarce because of the intrinsic preference of silicon to form sigma-bonded compounds. In particular, silicon compounds in which pi-electrons are delocalized over five or more silicon atoms have been elusive. We report the synthesis of pentasilicon analogs of cyclopentadienides (pentasilacyclopentadienides). These compounds contain nonplanar five-membered silicon rings with some pyramidali...
