Boron deficiency induced changes in translocation of 14CO2-photosynthate Into primary metabolites in relation to essential oil and curcumin accumulation in turmeric (Curcuma longa L.)

Title:

Boron deficiency induced changes in translocation of 14CO2-photosynthate Into primary metabolites in relation to essential oil and curcumin accumulation in turmeric (Curcuma longa L.)

Creator:

Dixit, Deeksha, Srivastava, N. K., and Sharma, S.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:b28ac26f-538c-43b5-88dd-c0edc3e9cda4
uuid:b28ac26f-538c-43b5-88dd-c0edc3e9cda4
issn:0300-3604
doi:10.1023/A:1020118913452

Subject:

amino acids, leaf position, net photosynthetic rate, organic acids, rhizome, root, secondary metabolites, stomatal conductance, sugars, and transpiration rate

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Changes in leaf growth, net photosynthetic rate (PN), incorporation pattern of photosynthetically fixed 14CO2 in leaves 1-4 from top, roots, and rhizome, and in essential oil and curcumin contents were studied in turmeric plants grown in nutrient solution at boron (B) concentrations of 0 and 0.5 g m-3. B deficiency resulted in decrease in leaf area, fresh and dry mass, chlorophyll (Chl) content, and PN and total 14CO2 incorporated at all leaf positions, the maximum effect being in young growing leaves. The incorporation of 14CO2 declined with leaf position being maximal in the youngest leaf. B deficiency resulted in reduced accumulation of sugars, amino acids, and organic acids at all leaf positions. Translocation of the metabolites towards rhizome and roots decreased. In rhizome, the amount of amino acids increased but content of organic acids did not show any change, whereas in roots there was decrease in contents of these metabolites as a result of B deficiency. Photoassimilate partitioning to essential oil in leaf and to curcumin in rhizome decreased. Although the curcumin content of rhizome increased due to B deficiency, the overall rhizome yield and curcumin yield decreased. The influence of B deficiency on leaf area, fresh and dry masses, CO2 exchange rate, oil content, and rhizome and curcumin yields can be ascribed to reduced photosynthate formation and translocation. and Deeksha Dixit, N. K. Srivastava, S. Sharma.

Language:

Multiple languages

Rights:

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

Coverage:

109-113

Source:

Photosynthetica | 2002 Volume:40 | Number:1

Harvested from:

CDK

Metadata only:

false