The effects of emergence and submergence on the photosynthesis and respiration of marine macrophytes

Quadir, A.; Harrison, Paul J.; DeWreede, Robert E.

doi:10.2216/i0031-8884-18-1-83.1

Cited by 115 publications

(60 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…l a , d) was first reported as long ago a s 1937 by Stocker and Holdheide. Their observations have since been confirmed for a wide range of intertidal algae, including species of UIva, Porphyra and Iridaea (Johnson et al, 1974;Brinkhuis et al, 1976;Quadir et al, 1979), but not previously for a species from the Laminariales (Fig. l b ) .…”

Section: Discussionmentioning

confidence: 76%

Photosynthesis of Intertidal Brown Algae During and After Periods of Emersion: A Renewed Search for Physiological Causes of Zonation

Dring¹,

Brown²

1982

Mar. Ecol. Prog. Ser.

213

145

View full text Add to dashboard Cite

CO2-exchange of emersed plants and 0,-exchange of submersed plants were measured in 5 species of brown algae from different tidal heights on shores in Ireland and Helgoland (southern North Sea). The photosynthesis of emersed fucoids and Laminaria digitata increased as up to 25 % of tissue water was lost, but then declined with further desiccation. The relationship between decrease in photosynthesis and loss of tissue water was similar in 3 species of Fucus, and the photosynthetic apparatus of F. spiralisappeared to be no more resistant to desiccation than that of F. serratus. Recovery from severe desiccation took about 2 h in all species, regardless of their typical position on the shore, but the extent of recovery from a given degree of desiccation was greater in upper shore species. Pelvetia canaliculata and F. spiralis showed complete recovery from 80 to 90% water loss, F. vesiculosus from about 70 %, F. serratus from 60 %, and Laminaria digitata from 55 % water loss. The photosynthetic rate of each species after full recovery decreased linearly as water loss increased beyond these values. It is in the extent of recovery of photosynthesis after desiccation that intertidal brown algae show the clearest correlation with their heights in the zonation pattern on European shores.

show abstract

Section: Discussionmentioning

confidence: 76%

Photosynthesis of Intertidal Brown Algae During and After Periods of Emersion: A Renewed Search for Physiological Causes of Zonation

Dring¹,

Brown²

1982

Mar. Ecol. Prog. Ser.

213

145

View full text Add to dashboard Cite

show abstract

“…are well adapted to desiccation stress in comparison with other species (e.g. Johnson et al, 1974;Quadir et al, 1979;Einav et al, 1995;Abe et al, 2001;Guo and Dong, 2008;Nelson et al, 2010). Partial desiccation can elevate photosynthesis (e.g.…”

Section: Temperature and Periods Of Emersionmentioning

confidence: 99%

Abiotic factors influencing biomass accumulation of green tide causing Ulva spp. on Pyropia culture rafts in the Yellow Sea, China

Keesing

Chen

Shi

et al. 2016

Marine Pollution Bulletin

View full text Add to dashboard Cite

a b s t r a c t a r t i c l e i n f oAnnually recurrent green-tides in the Yellow Sea have been shown to result from direct disposal into the sea of fouling Ulva from Pyropia aquaculture. The role abiotic factors play in Ulva biomass accumulation on rafts was studied to find ways to mitigate this problem. Dissolved inorganic nitrogen (DIN) was very high at all sites, but the highest Ulva biomass was associated with the lowest DIN and anthropogenic N. Under luxuriant background nutrient conditions, variability in temperature and periods of emersion, rather than pH, light and salinity determined Ulva biomass. Two dominant species of Ulva displayed differing tolerances to temperature and desiccation which helped explain why Ulva prolifera dominates floating green-tides. Rather than trying to mitigate greentides only by reducing nutrient pollution, an earlier harvest of Pyropia in southern Jiangsu Province especially before temperatures increase greatly above 10°C during April, could reduce the biomass of U. prolifera disposed from rafts.Crown

show abstract

“…The emersed photosynthesis was enhanced at an early stage due to extracellular water loss and then reduced, probably due to intracellular dehydration, in Porphyra spp. (Johnson et al, 1974;Gao & Aruga, 1987), Fucus distichus (Quadir et al, 1979) and Ascophyllum nodosum (Brinkhuis et al, 1976); the maximum photosynthesis during emersion was higher than that when submerged. These studies demonstrated that the intertidal macroalgae, even dehydrated to about 15% water content, do photosynthesize in the air when they are exposed during the daytime.…”

Section: Introductionmentioning

confidence: 95%

“…For the intertidal macroalgae, when the tide is low and they are exposed to air, CO 2 is the only exogenous carbon source for their photosynthesis (whereas both HCO 3 − and CO 2 are available in seawater); therefore the intertidal macroalgae may be significantly sensitive to the atmospheric CO 2 increase. Photosynthesis of the intertidal macroalgae during emersion has been studied previously (Brinkhuis et al, 1976;Quadir et al, 1979;Oates & Murray, 1983;Oates, 1985;1986;Gao & Aruga, 1987). The emersed photosynthesis was enhanced at an early stage due to extracellular water loss and then reduced, probably due to intracellular dehydration, in Porphyra spp.…”

Section: Introductionmentioning

confidence: 99%

Relationship of CO2 concentrations to photosynthesis of intertidal macroalgae during emersion

Gao

Aruga³

1999

Sixteenth International Seaweed Symposium

View full text Add to dashboard Cite

In order to assess the ecological impacts of the atmospheric CO 2 increase on the intertidal macroalgae during emersion, the photosynthesis of Enteromorpha linza (a green alga), Ishige okamurae (a brown alga) and Gloiopeltis furcata (a red alga) was investigated in air as a function of CO 2 concentrations and water loss. Their photosynthesis was not saturated at the present atmospheric CO 2 level (350 µl l −1 or 15.6 µM), the CO 2 compensation point and K [mCO 2 ] increased with increasing desiccation, showing that desiccation lowers the CO 2 affinity of the intertidal macroalgae. It was concluded that E. linza, I. okamurae and G. furcata, while exposed to air, can benefit from atmospheric CO 2 rise, especially when the algae have lost some water.

show abstract

The effects of emergence and submergence on the photosynthesis and respiration of marine macrophytes

Cited by 115 publications

References 8 publications

Photosynthesis of Intertidal Brown Algae During and After Periods of Emersion: A Renewed Search for Physiological Causes of Zonation

Photosynthesis of Intertidal Brown Algae During and After Periods of Emersion: A Renewed Search for Physiological Causes of Zonation

Abiotic factors influencing biomass accumulation of green tide causing Ulva spp. on Pyropia culture rafts in the Yellow Sea, China

Relationship of CO2 concentrations to photosynthesis of intertidal macroalgae during emersion

Contact Info

Product

Resources

About