Photosynthetic responses of the low intertidal macroalga Sargassum fusiforme (Sargassaceae) to saline stress

Title:

Photosynthetic responses of the low intertidal macroalga Sargassum fusiforme (Sargassaceae) to saline stress

Creator:

Gao, S., Huan, L., Lu, X.-P., Jin, W.-H., Wang, X.-L., Wu, M.-J., and Wang, G.-C.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:d9a82dc5-4ab0-4ee3-ae86-1f571a8d4833
uuid:d9a82dc5-4ab0-4ee3-ae86-1f571a8d4833
issn:0300-3604
doi:10.1007/s11099-015-0181-7

Subject:

fotosyntéza, photosynthesis, reductant, nonphotochemical quenching, chlorophyll fluorescence, chrysolaminarin, electron transport rate, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

Sargassum fusiforme, a species of brown seaweed with economic importance, inhabits lower intertidal zones where algae are often exposed to various stresses. In this study, changes in the photosynthetic performance of S. fusiforme under saline stress were investigated. The PSII performance in S. fusiforme significantly improved, when the thalli were exposed to 0% salinity, and remained high with prolonging treatment time. In contrast, the PSII activity declined considerably under salinities of 4.5 and 6%. The PSI activity did not change remarkably under saline stress, thus demonstrating higher tolerance to saline stress than PSII. In addition, the PSI activity could be also restored after saline treatments, when PSII was inhibited by 3-(3,4-dichlorophenyl)-1,1-dimethylurea. It might be as a result of changes in the NAD(P)H content in the thalli under saline stress. Our results suggested that PSI was much more tolerant to different saline stress than PSII in S. fusiforme. We demonstrated that S. fusiforme was much more tolerant to hyposaline than to hypersaline stress., S. Gao, L. Huan, X.-P. Lu, W.-H. Jin, X.-L. Wang, M.-J. Wu, G.-C. Wang., and Seznam literatury

Language:

Multiple languages

Rights:

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

Coverage:

430-437

Source:

Photosynthetica | 2016 Volume:54 | Number:3

Harvested from:

CDK

Metadata only:

false