Gibberellin mediates daylength-controlled differentiation of vegetative meristems in strawberry (Fragaria x ananassa Duch).

ABSTRACT:

Background

Differentiation of long and short shoots is an important developmental trait in several species of the Rosaceae family. However, the physiological mechanisms controlling this differentiation are largely unknown. We have studied the role of gibberellin (GA) in regulation of shoot differentiation in strawberry (Fragaria x ananassa Duch.) cv. Korona. In strawberry, differentiation of axillary buds to runners (long shoot) or to crown branches (short shoot) is promoted by long-day and short-day conditions, respectively. Formation of crown branches is a prerequisite for satisfactory flowering because inflorescences are formed from the apical meristems of the crown.

Results

We found that both prohexadione-calcium and short photoperiod inhibited runner initiation and cons

SUBMITTER: Hytonen T 

PROVIDER: S-EPMC2653492 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature