Leaf structure and photosynthesis in Populus alba under naturally fluctuating environments

Title:

Leaf structure and photosynthesis in Populus alba under naturally fluctuating environments

Creator:

Lin, X. Y., Wang, X. X., Zeng, Q. Y., and Yang, Q.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:acaf0748-e47c-4cba-a932-f9fa059772b2
uuid:acaf0748-e47c-4cba-a932-f9fa059772b2
doi:10.32615/ps.2022.012

Subject:

fluctuating conditions, photoinhibition, photosynthesis, plasticity, and Populus alba

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

The ability to modulate photosynthesis is essential for plants to adapt to fluctuating growing conditions. Populus species show high tolerance to various and highly variable environments. To understand their response strategies against fluctuating environments, this study investigated the morphological and physiological differences of white poplar (Populus alba) leaves when grown in a phytotron, glasshouse, and field. Our results show that the palisade cells were elongated in the field, which would enhance intercellular CO2 exchange. Photosynthetic capacity was the highest in the field leaves, as shown by higher electron transport rates (1.8 to 6.5 times) and carbon assimilation rates (2.7 to 4.2 times). The decrease of PSI acceptor-side limitation and increase of PSI donor-side limitation suggests changes in PSI redox status may contribute to photoprotection. This plasticity of white poplar allows adjusting its structure and photosynthesis under fluctuating conditions, which may partly enable its outstanding tolerance against environmental changes.

Language:

Multiple languages

Rights:

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

Coverage:

240-250

Source:

Photosynthetica | 2022 Volume:60 | Number:2

Harvested from:

CDK

Metadata only:

false