Sucrose metabolism at three leaf development stages in bean plants

Title:

Sucrose metabolism at three leaf development stages in bean plants

Creator:

Castrillo, M.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:2f8586dd-2969-4ee6-9143-53f49310ed6e
uuid:2f8586dd-2969-4ee6-9143-53f49310ed6e
issn:0300-3604
doi:10.1023/A:1007035919603

Subject:

acid and neutral invertases, hexose/sucrose ratio, Phaseolus vulgaris, sucrose phosphate synthase, and sucrose synthase

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Sucrose metabolism was studied at three leaf development stages in two Phaseolus vulgaris L. cultivars, Tacarigua and Montalban. The changes of enzyme activities involved in sucrose metabolism at the leaf development stages were: (1) Sink (9-11 % full leaf expansion, FLE): low total sucrose phosphate synthase (SPS) activity, and higher acid invertase (AI) activity accompanied by low sucrose synthase (SuSy) synthetic and sucrolytic activities. (2) Sink to source transition (40-47 % FLE): increase in total SPS and SuSy activities, decrease in AI activity. (3) Source (96-97 % FLE): high total SPS activity, increased SuSy activities, decreased AI activity. The hexose/sucrose ratio decreased from sink to source leaves in both bean cultivars. The neutral invertase activity was lower than that of AI; it showed an insignificant decrease during the sink-source transition.

Language:

Multiple languages

Rights:

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

Coverage:

519-524

Source:

Photosynthetica | 1999 Volume:36 | Number:4

Harvested from:

CDK

Metadata only:

false