English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A model that predicts UV effects on marine primary productivity using abiological weighting function (BWF) coupled to the photosynthesis–irradianceresponse (BWF/P-E model) has been implemented for two strains of thepicoplanktonic cyanobacteria Synechococcus, WH7803 and WH8102,which were grown at two irradiances (77 and174 μmol m−2 s−1 photosynthetically available radiation (PAR)) and two temperatures (20 and26 °C). The model was fit using photosynthesis measured in apolychromatic incubator with 12 long-pass filter configurations with 50%wavelength cutoffs ranging from 291 to 408 nm, giving an effectivewavelength range of 280–400 nm. Examination of photosynthetic response vs.weighted exposure revealed that repair rate progressively increases at lowexposure but reaches a maximum rate above a threshold exposure("Emax"). Adding Emax as a parameter to the BWF/P-E modelprovided a significantly better fit to Synechococcus data than theexisting "E" or "T" models. Sensitivity to UV inhibition varied withgrowth conditions for both strains, but this was mediated mainly byvariations in Emax for WH8102 while both the BWF and Emax changedfor WH7803. Higher growth temperature was associated with a considerablereduction in sensitivity, consistent with an important role of repair inregulating sensitivity to UV. Based on nominal water column conditions (noon,solstice, 23° latitude, "blue" water), the BWFEmax/P-Emodel estimates that UV + PAR exposure inhibits Synechococcusphotosynthesis from 78 to 91% at 1 m, and integrated productivity to150 m 17–29% relative to predicted rates in the absence of inhibition

biogeosciences

UV effects on the primary productivity of picophytoplankton: biological weighting functions and exposure response curves of &amp;lt;i&amp;gt;Synechococcus&amp;lt;/i&amp;gt;