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Photoprotective Energy Dissipation Involves the Reorganization of Photosystem II Light-Harvesting Complexes in the Grana Membranes of Spinach Chloroplasts[W]
An investigation into the structural basis of light-harvesting regulation in intact spinach chloroplasts using freeze-fracture electron microscopy, combined with laser confocal microscopy employing the fluorescence recovery after photobleaching technique demonstrates that formation of the photoprotective state requires a structural reorganization of the photosynthetic membrane involving dissociation of LHCII from PSII and its aggregation. Expand
IPM Strategies and Their Dilemmas Including an Introduction to www. eurowheat.org
Information about disease management in winter wheat (Triticum aestiva) in eight European countries was collated and analysed by scientists and extension workers within the European Network for theExpand
Stomatal differentiation and abnormal stomata in hornworts
Structural limitations, a liquid-filled stage in the ontogeny of the intercellular spaces, and spores already at the tetrad stage when stomata open, suggest that their primary role is facilitating sporophyte desiccation leading to dehiscence and spore dispersal rather than gaseous exchange. Expand
Light-harvesting antenna composition controls the macrostructure and dynamics of thylakoid membranes in Arabidopsis.
It is suggested that a key feature of the physiological function of PsbS is to decrease the formation of ordered semi-crystalline arrays of Photosystem II in the low-light state, accelerating the re-organization of the photosystem II macrostructure that is necessary for induction of non-photochemical quenching. Expand
Visualizing the mobility and distribution of chlorophyll proteins in higher plant thylakoid membranes: effects of photoinhibition and protein phosphorylation.
Protein phosphorylation switches the membrane system to a more fluid state, thus facilitating the photosystem-II repair cycle, and changes in protein mobility correlate with changes in the packing density and size of thylakoid protein complexes, as observed by freeze-fracture electron microscopy. Expand
Preservational Pathways of Corresponding Brains of a Cambrian Euarthropod
Geochemical analyses provide crucial insights of taphonomic pathways for brain preservation, revealing that neural tissue was initially preserved as carbonaceous film and subsequently pyritized, indicating that no special mode is required for fossilization of labile neural tissue. Expand
Seasonal Patterns of Spore Dispersal of Phaeosphaeria spp. and Stagonospora spp.
The airborne inoculum appeared to be omnipresent over cereal areas year round, except during periods with freezing temperatures and a snow cover, which poses a danger to crops and could be of importance in the epidemiology of Stagonospora (= Septoria) blotches under the climatic conditions of central Poland. Expand
Transmission of Stagonospora nodorum and Fusarium spp. on Triticale and Wheat Seed and the Effect of Seedborne Stagonospora nodorum on Disease Severity under Field Conditions
Infected seed was shown to serve as a source of primary inoculum in epidemics of the disease in cereals and the effect of seedborne inoculum on Stagonospora nodorum blotch in the field was studied. Expand
A new genus of Buchonomyiinae (Diptera, Chironomidae) from Upper Cretaceous Burmese amber, with the phylogeny of the subfamily revisited
The oldest record of the subfamily Buchonomyiinae, from Upper Cretaceous Burmese amber, is presented, represented by a new genus Furcobuchonom yia, which Bayesian analysis firmly places the new genus as the sister group to the rest of the Buchonomy iinae. Expand
Structural characterization of flavonoid glycosides from leaves of wheat (Triticum aestivum L.) using LC/MS/MS profiling of the target compounds.
Part of the target natural products had the full structure being characterized after the registration of mass spectra, where m/z values for protonated and deprotonated molecules [M - H](-) were annotated. Expand