Photoperiod, Temperature, Gibberellin, and an Anti-gibberellin Affect Tuberization of Potato Stem Segments In Vitro

Gibberellin A1 Metabolism Contributes to the Control of Photoperiod-Mediated Tuberization in Potato

Some potato species require a short-day (SD) photoperiod for tuberization, a process that is negatively affected by gibberellins (GAs). Here we report the isolation of StGA3ox2, a gene encoding a GA 3-oxidase, whose expression is increased in the aerial parts and is repressed in the stolons after transfer of photoperiod-dependent potato plants to SD conditions. Over-expression of StGA3ox2 under...

Interactions of Gibberellin, Vernalization, Photoperiod and Temperature in the Flowering of Endive.

Acid & neutral gibberellin-like substances in potato tubers.

1. BULA, R. J. & D. SMITH. 1954. Cold resistanice & chemical composition in overwintering alfalfa, red clover, & sweet clover. Agron. J. 46: 397-401. 2. BULA, R. J., D. SMITH, & H. J. HODGSON. 1956. Cold resistance in alfalfa at two diverse latitudes. Agron. J. 48: 153-156. 3. JANSSEN, G. 1929. The relationship of organic root reserves & other factors to the permanency of alfalfa stands. J. Am....

Gibberellin-auxin interaction in pea stem elongation.

Joint application of gibberellic acid and indole-3-acetic acid to excised stem sections, terminal cuttings, and decapitated plants of a green dwarf pea results in a markedly synergistic growth response to these hormones. Synergism in green tall pea stem sections is comparatively small, although growth is kinetically indistinguishable from similarly treated dwarf sections.Gibberellin-induced gro...

Gibberellin receptor and its role in gibberellin signaling in plants.

Gibberellins (GAs) are a large family of tetracyclic, diterpenoid plant hormones that induce a wide range of plant growth responses. It has been postulated that plants have two types of GA receptors, including soluble and membrane-bound forms. Recently, it was determined that the rice GIBBERELLIN INSENSITIVE DWARF1 (GID1) gene encodes an unknown protein with similarity to the hormone-sensitive ...