Salk scientists have defined a new pathway that controls how plants flower in response to shaded, crowded conditions, and their findings may have implications for increasing yield in crops ranging from rice to wheat.
The study, published in the June 19 issue of Nature, was led by Salk professor and Howard Hughes Medical Institute Investigator Joanne Chory and Salk/Howard Hughes Medical Institute postdoctoral fellow Pablo Cerdán. "The mechanism that leads to plants flowering early in response to shaded conditions has largely been unknown," said Chory. "And this is a major problem for crops, which are planted at high density and often shade each other in the field. By understanding this process, we may someday be able to control plant flowering responses to shade and, in turn, increase the yield of crops."
The Salk researchers focused on what is known in plants as the "shade-avoidance syndrome." When plants grow in high density, they perceive a decrease in the relative amounts of incoming red light to light of other wavelengths. This change of light serves as a warning for competition, prodding the plants to flower and create seeds. The byproduct of this process is that plant stems grow longer and leaf volume declines, leading to decreases in biomass and yield.
Robert Bradford | Salk Institute
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26.05.2017 | Helmholtz-Zentrum für Infektionsforschung
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
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Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
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26.05.2017 | Life Sciences
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