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 Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

We evaluated photosynthetic gas exchange and the accumulation of iron, manganese and sulfur in seedlings of five mangrove species ( Aegiceras corniculatum  (L.) Blanco,  Avicennia marina  (Forsk.) Vierh.,  Bruguiera gymnorrhiza  (L.) Lamk.,  Hibiscus tiliaceus  L. and  Rhizophora stylosa  Griff.) growing under anoxic soil conditions at low irradiance. Seedlings of the viviparous mangroves showed no significant responses to root anoxia. The presence of ferrous sulfate or manganous sulfate had a smaller effect on CO 2  assimilation, transpiration rate and stomatal behavior than the presence of sodium sulfide. Sodium sulfide inhibited photosynthetic gas exchange and caused complete stomatal closure in all species. Stomatal closure was probably the result of the damaging effect of sulfide ions on root cell membranes. Some leaf epinasty and wilting were also observed in response to the Na 2 S treatment in all species. A combination of FeSO 4 , MnSO 4  and Na 2 S had a smaller effect on photosynthesis than Na 2 S alone, especially for  Avicennia marina  and  Rhizophora stylosa  seedlings, which maintained appreciable rates of CO 2  assimilation (2.49 and 3.84 μmol m −2  s −1 , respectively) in the presence of all three phytotoxins.

tree physiology

Photosynthetic gas exchange and accumulation of phytotoxins in mangrove seedlings in response to soil physico-chemical characteristics associated with waterlogging