Except for transpired water, the intracellular water stored in leaves accounts only 1–3% of absorbed by roots. Understanding transport and use, as well related photosynthetic response, helps with determining plant status improving revegetation efficiency fragile karst habitats. In this study, we conducted experiments on 8 year old naturally growing plants Coriaria nepalensis Wall., Broussonetia...

As a trace gas involved in hydration during plant photosynthesis, carbonyl sulfide (COS) and its leaf relative uptake rate (LRU) is used to reduce the uncertainties simulations of gross primary productivity (GPP). In this study, 101 independent observations were collected from 22 studies. We extracted LRU, stomatal conductance (gs), canopy COS carbon dioxide (CO2) fluxes, relevant environmental...

Background: Periodic or cyclic data of known periodicity are frequently encountered in epidemiological and biomedical research: for instance, seasonality provides a useful experiment of nature while diurnal rhythms play an important role in endocrine secretion. There is, however, little consensus on how to analysis these data and less still on how to measure association or effect size for the o...

The diurnal variations in the factors of photosynthesis reduction under well-watered greenhouse conditions remain poorly understood. We conducted measurements gas exchange and chlorophyll fluorescence strawberries (Fragaria × ananassa Duch.) for three sunny days. Quantitative limitation analysis was also to investigate photosynthetic limitations [stomatal (SL), mesophyll (MCL), biochemical (BL...

We report on diurnal, tidal, and seasonal variations of dissolved inorganic carbon (DIC), water partial pressure CO2 (pCO2), associated water–air fluxes in a tidal creek temperate coastal lagoon with 70% intertidal flats, during eight tidal/diurnal cycles two consecutive years covering all seasons. Surface waters the were always slightly oversaturated respect to atmosphere an average pCO2 value...

Cyanothece sp. ATCC 51142 is a unicellular, diazotrophic cyanobacterium with a versatile metabolism and very pronounced diurnal rhythms. Since nitrogen fixation is exquisitely sensitive to oxygen, Cyanotheceutilizes temporal regulation to accommodate these incompatible processes in a single cell. When grown under 12 h light-dark (LD) periods, it performs photosynthesis during the day and N(2) f...

Cyanobacteria are oxygenic photoautotrophs notable for their ability to utilize atmospheric CO2 as the major source of carbon. The prospect of using cyanobacteria to convert solar energy and high concentrations of CO2 efficiently into biomass and renewable energy sources has sparked substantial interest in using flue gas from coal-burning power plants as a source of inorganic carbon. However, i...