A recent Purdue University study has uncovered the processes responsible for shutting down scent production in certain flowers once theyve been pollinated – a finding that may help the horticulture industry enhance floral scent.
Once flowers like these snapdragons have been pollinated, the amount of scent production is reduced, according to a Purdue University study. Researcher Florence Negre, smelling snapdragons in the Purdue greenhouses, participated in the study published this month in The Plant Cell. (Purdue Agricultural Communications photo/Tom Campbell)
Natalia Dudareva, associate professor of horticulture, and her colleagues have recently identified the molecular mechanisms that cause petunias and snapdragons to decrease scent production after theyve been visited by pollinators such as bees or moths. The researchers also proved that fertilization, the reproductive process that follows pollination, triggers a decline in scent production. In addition, their research has identified a new role for the plant hormone ethylene.
The study will appear in the December issue of The Plant Cell and is published online in advance of print today (Thursday, 11/20) at The Plant Cell Preview.
Jennifer Cutraro | Purdue News
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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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