Components of CO2 exchange in leaves of C3 species with different ability of starch accumulation

Title:

Components of CO2 exchange in leaves of C3 species with different ability of starch accumulation

Creator:

Ivanova, H., Keerberg, H., Pärnik, T., and Keerberg, O.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:43db7540-ef07-46ec-b090-a0ed83d74210
uuid:43db7540-ef07-46ec-b090-a0ed83d74210
issn:0300-3604
doi:10.1007/s11099-008-0015-y

Subject:

intracellular decarboxylation, photorespiration, photosynthesis, respiration, starch-accumulating species, starch-deficient species, and starch degradation

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Using a radiogasometric method the rates of photorespiratory and respiratory decarboxylations of primary and stored photosynthates in the leaves of two groups of C3 species, differing in the ability of starch accumulation, were determined. One group included starch-accumulating (SA) species with rates of starch synthesis on the average 38 % the rate of photosynthesis [Solanum tuberosum L., Arabidopsis thaliana (L.) Heynh, Helianthus annuus L., and Plantago lanceolata L.]. The second group represented starch-deficient (SD) species with rates of starch synthesis less than 8 % the rate of photosynthesis (Secale cereale L., Triticum aestivum L., Hordeum vulgare L., and Poa trivialis L.). In SA species the rate of respiration in the dark was significantly higher than in SD species. No differences were found in the rates of photosynthesis, photorespiration, and respiration under irradiation. Thus, the degree of inhibition of respiration by irradiation was in SA species higher than in SD species. It is concluded that starch does not provide substrates for respiratory and photorespiratory decarboxylations in irradiated photosynthesizing leaves. and H. Ivanova ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

84-90

Source:

Photosynthetica | 2008 Volume:46 | Number:1

Harvested from:

CDK

Metadata only:

false