Impacts of low pH and low salinity induced by acid rain on the photosynthetic activity of green tidal alga Ulva prolifera

Title:

Impacts of low pH and low salinity induced by acid rain on the photosynthetic activity of green tidal alga Ulva prolifera

Creator:

Zhao, Z.F., Liu, Z.Y., Qin, S., Wang, X.H., Song, W.L., Liu, K., Zhuang, L.C., Xiao, S.Z., and Zhong, Z.H.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:def75cd0-ff5d-4f00-910c-a7955e3e7417
uuid:def75cd0-ff5d-4f00-910c-a7955e3e7417
doi:10.32615/ps.2021.036

Subject:

acid rain, chlorophyll fluorescence, nonphotochemical quenching, photosynthetic activity, and Ulva prolifera

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

Acid rain is a serious environmental problem and has obvious impacts on the growth, reproduction, and photosynthesis of terrestrial plants. Ulva prolifera, a main blooming species of green tides, was studied on its physiological response to acid rain. The photosynthetic parameters were determined under different conditions (salinity: 1, 10, 30‰; pH: 3.0, 3.5, 4.5; duration: 0.5, 1.0, 2.0 h) followed by 24-h recovering under natural conditions. Results showed 1-h treatment with pH 3.5 caused 50-70% reduction in the maximal quantum yield of PSII photochemistry (Fv/Fm) and effective quantum yield of PSII photochemistry (ФPSII) at normal salinity but when the low pH was combined with a salinity of 10‰ or lower, PSII activity was almost completely inhibited. Moreover, the low salinity (1‰ and 10‰) reduced the degree of photoprotection under low pH (3.5) conditions. Finally, we speculated if the pH of acid rain ≤ 3.5, with 1‰ salinity and 2-h rainfall time, the amount of U. prolifera and the scale of green tides would decrease.

Language:

Multiple languages

Rights:

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

Coverage:

468-477

Source:

Photosynthetica | 2021 Volume:59 | Number:4

Harvested from:

CDK

Metadata only:

false