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/

Zendy Plus

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

Zendy Tools

Zendy Open

Photosynthetic performance, photosynthetic pigments, carbohydrate and protein content were measured monthly in  Gracilaria cornea  collected over 1 year in Yucatán, Mexico. The algae showed a marked seasonality in photosynthetic capacity and biochemical constituents. The photosynthetic rates (4 to 11 mg O 2  g d wt −1  h −1 ) were higher during the cold (November–February) and dry (March–June) seasons compared to the wet (June–October) season. Compensation and saturation irradiances were low (17–37 and 72–155 μmol photons m −2  s −1 ). Thus, although the populations occurred in shallow (2–4 m) water, the low light acclimation reflects the effect of high turbidity, sedimentation on the branches, and low irradiance values that were continuously recorded (1.97 to 8.85 mol photons m −2  d −1 ) throughout the year. The low concentrations of chlorophyll  a  (0.25 to 0.49 mg g d wt −1 ) and phycoerythrin (0.03 to 0.25 mg g d wt −1 ) reflect the oligotrophic waters as shown by concentrations of dissolved inorganic nitrogen (9.1 μmol L −1 ) and dissolved reactive phosphate (0.5 μmol L −1 ). Total soluble carbohydrate levels increased from July to October reaching 56% (dry weight basis) coinciding with high water temperatures. Protein levels ranged from 5.1% in February to 3.0% (dry weight basis) in August with no significant differences between months. Thus, the growth period for  Gracilaria cornea  appears to be temperature limited, occurring mainly during the dry seasons.

botanica marina

Studies on the Tropical Agarophyte Gracilaria cornea J. Agardh (Rhodophyta, Gracilariales) from Yucatán, Mexico. I. Seasonal Physiological and Biochemical Responses