Higher activity of PSI compared to PSII accounts for the beneficial effect of silicon on barley (Hordeum vulgare L.) plants challenged with salinity

Title:

Higher activity of PSI compared to PSII accounts for the beneficial effect of silicon on barley (Hordeum vulgare L.) plants challenged with salinity

Creator:

Falouti, M., Ellouzi, H., Bounaouara, F., Farhat, N., Aggag, A. M., Debez, A., Rabhi, M., Abdelly, C., Slama, I., and Zorrig, W.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:1218a02b-0e9c-4509-94ef-417ab85845c2
uuid:1218a02b-0e9c-4509-94ef-417ab85845c2
doi:10.32615/ps.2022.031

Subject:

chlorophyll fluorescence, growth, malondialdehyde, PSI oxidation, and potassium nutrition

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

This study was conducted to assess whether silicon (Si) supply can alleviate the harmful effects of severe salinity in barley (Hordeum vulgare). Plants were grown on non-saline (0 mM NaCl) or saline (200 mM NaCl) nutrient media supplemented or not with 0.5 mM Si. Salinity impacted plant morphology and induced sodium and chloride accumulation within plant tissues. It significantly affected almost all measured parameters. Interestingly, Si supply alleviated salt stress effects on plant morphology, growth (up to +59%), water status (up to +74%), membrane integrity (up to +35%), pigment contents (up to +121%), and the activity of the two photosystems (PSI and PSII) by improving their yields, and by reducing their energy dissipation. Si beneficial effect was more pronounced on PSI as compared to PSII. As a whole, data inferred from the present study further confirmed that silicon application is an effective approach to cope with salinity.

Language:

Multiple languages

Rights:

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

Coverage:

508-520

Source:

Photosynthetica | 2022 Volume:60 | Number:4

Harvested from:

CDK

Metadata only:

false