Photosynthetic apparatus performance and anatomical modulations of Alcantarea imperialis (Bromeliaceae) exposed to selenium during in vitro growth

Title:

Photosynthetic apparatus performance and anatomical modulations of Alcantarea imperialis (Bromeliaceae) exposed to selenium during in vitro growth

Creator:

Martins, J.P.R., Moreira, S.W., Braga, P.C.S., Conde, L.T., Cipriano, R., Falqueto, A.R., and Gontijo, A.B.P.L.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:75f7c891-ae14-4721-be99-568161c78c0b
uuid:75f7c891-ae14-4721-be99-568161c78c0b
doi:10.32615/ps.2021.042

Subject:

bromeliad, chlorophyll a fluorescence, electron transport, plant anatomy, and plant tissue culture

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

Elements not usually included in culture medium formulations, such as selenium (Se), may have beneficial effects on micropropagated plants. We evaluated the effects of Se on the physiological and anatomical responses of Alcantarea imperialis during in vitro culture. Plants were cultured in a medium containing a gradient of Se concentrations (0, 4, 8, 16, or 32 µM Se). After 56 d, the growth traits, chlorophyll a fluorescence, and root and leaf anatomy were analyzed. The fresh mass declined at the highest Se concentration. Higher Se concentrations induced bigger stomata, while the stomatal density decreased. Plants cultured with Se had improved PSII and PSI electron transport. This led to higher values of the total performance index. Thus, Se-induced plants showed a higher electron transport dynamics and energy conservation from water to PSI and developed anatomical traits that can favor tolerance to water deficit.

Language:

Multiple languages

Rights:

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

Coverage:

529-537

Source:

Photosynthetica | 2021 Volume:59 | Number:4

Harvested from:

CDK

Metadata only:

false