Comparison of aerial and submerged leaves in two amphibious species, Myosotis scorpioides and Ranunculus trichophyllus

Title:

Comparison of aerial and submerged leaves in two amphibious species, Myosotis scorpioides and Ranunculus trichophyllus

Creator:

Germ, M. and Gaberščik, A.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:49984d08-7b78-4bae-8029-b7e771b5dbbf
uuid:49984d08-7b78-4bae-8029-b7e771b5dbbf
issn:0300-3604
doi:10.1023/A:1025816614572

Subject:

chlorophylls, electron transport system activityx, fluctuating water level, fluorescence induction, leaf length, photochemical efficiency of photosystem 2, stomata number, and UV-B screening compounds

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Both amphibious species, Myosotis scorpioides and Ranunculus trichophyllus, thrive in a stressful environment (alternated flooding and drying), which is variable regarding water and radiation regimes. Plants from the field and plants grown under controlled water table maintained at 40 cm were analysed for content of chlorophyll (Chl) and UV-B screening compounds, and the efficiencies of PS2 and electron transport systems. We detected no significant differences in contents of Chl and UV-B screening compounds between submerged and aerial leaves. The measurements of respiratory potential and photochemical efficiency revealed the presence of permanent stress in M. sporpioides in the natural environment. Differences in physiological responses of submerged and aerial leaves indicated that the terrestrial environment was more favourable for M. scorpioides than for R. trichophyllus. Characteristics of both species suggested that R. trichophyllus might be a phylogenetically older aquatic plant than M. scorpioides. and M. Germ, A. Gaberščik.

Language:

Multiple languages

Rights:

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

Coverage:

91-96

Source:

Photosynthetica | 2003 Volume:41 | Number:1

Harvested from:

CDK

Metadata only:

false