Comparative study of the effects of salinity and UV radiation on metabolism and morphology of the red macroalga Acanthophora spicifera (Rhodophyta, Ceramiales)

Title:

Comparative study of the effects of salinity and UV radiation on metabolism and morphology of the red macroalga Acanthophora spicifera (Rhodophyta, Ceramiales)

Creator:

Pereira, D. T., Simioni, C., Ouriques, L. C., Ramlov, F., Maraschin, M., Steiner, N., Chow, F., Bouzon, Z. L., and Schmidt, É. C.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:d21200cd-55f7-46da-a9c0-cc5c37458b6c
uuid:d21200cd-55f7-46da-a9c0-cc5c37458b6c
issn:0300-3604
doi:10.1007/s11099-017-0731-2

Subject:

řasy, metabolity, mikroskopie, Algae, metabolites, microscopy, životaschopnost buněk, tempo růstu, cell viability, growth rate, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

Increase of harmful radiation to the Earth’s surface due to ozone depletion results in higher exposure to harmful ultraviolet- B radiation (UV), while fluctuations in seawater salinity may alter water density, ionic concentration, nutrient uptake, and osmotic pressure. This study evaluated the effects of salinity and UV on metabolism and morphology of Acanthophora spicifera (M.Vahl) Børgesen. Water with 30 and 37 psu [g(salt) kg-1(sea water)] was used for experiments during 7 d of exposure to UV (3 h per day). We demonstrated that UV treatment predisposed, irrespective of salinity, A. spicifera to a decrease in its growth rate and cell viability, as well as affected its morphological parameters. After exposure to PAR + UVA + UVB (PAB), samples showed structural changes and damage, such as increasing cell wall thickness and chloroplast disruption. Our results indicate that UV led to dramatic metabolic changes and cellular imbalances, but more remarkable changes were seen in samples exposed to high salinity., D. T. Pereira, C. Simioni, L. C. Ouriques, F. Ramlov, M. Maraschin, N. Steiner, F. Chow, Z. L. Bouzon, É. C. Schmidt., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

799-810

Source:

Photosynthetica | 2018 Volume:56 | Number:3

Harvested from:

CDK

Metadata only:

false