Changes in morphology, anatomy, and photosynthetic capacity of needles of Japanese larch (Larix kaempferi) seedlings grown in high CO2 concentrations

Title:

Changes in morphology, anatomy, and photosynthetic capacity of needles of Japanese larch (Larix kaempferi) seedlings grown in high CO2 concentrations

Creator:

Eguchi, N., Fukatsu, E., Funada, R., Tobita, H., Kitao, M., Maruyama, Y., and Koike, T.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:ec0c7f37-c691-4e5b-9a57-d5e6f054a89d
uuid:ec0c7f37-c691-4e5b-9a57-d5e6f054a89d
issn:0300-3604
doi:10.1023/B:PHOT.0000040587.99518.a8

Subject:

carboxylation efficiency, cell number, intercellular CO2 concentration, mesophyll surface area, needle thickness and width, net photosynthetic rate, nitrogen content, specific leaf area, and starch

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Photosynthetic traits of two-year-old Japanese larch seedlings (Larix kaempferi Carr.) grown at elevated CO2 concentrations were studied in relation to structural changes in the needles. Seedlings were grown at two CO2 concentrations, 360 (AC) and 720 (EC) μmol mol-1 at high and low nutrient supply rates, high N (HN) and low N (LN). The photosynthetic capacity fell significantly in EC+LN, but increased significantly in EC+HN. Since the mesophyll surface area exposed to intercellular space per unit leaf area (Ames/A) is correlated with the photosynthetic rate, we measured Ames/A for larch needles growing in EC. Changes of Ames/A in both EC+HN and EC+LN were very similar to the changes in photosynthetic capacity. This suggests that the changes of Ames/A in EC probably caused the changes in the photosynthetic capacity. The changes of Ames/A in EC were attributed to changes in the mesophyll cell size and mesophyll cell number. The photosynthetic capacity in EC can be explained by taking morphological and structural adaptations into account as well as biochemical factors. and N. Eguchi ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

173-178

Source:

Photosynthetica | 2004 Volume:42 | Number:2

Harvested from:

CDK

Metadata only:

false