Two different types of genes for rice GA-stimulated transcript (GAST) homologue genes, Oryza sativa GA-stimulated transcript-related gene 1 (OsGASR1) and gene 2 (OsGASR2), were found. Both OsGASR proteins contain a cysteine-rich domain highly conserved among GAST family proteins in their C-terminal regions. Gibberellin A3 (GA3) stimulated expression of both OsGASRs in the wild-type Nipponbare a...

The artificial germination of plant pollens has met with varying success. As a whole, the pollen of the Gramineae has proved very difficult to germinate. While experiments with the pollen of many plants have resulted not only in ready germination but in satisfactory methods of preserving the pollen for considerable periods of time, the results with many of the Gramineae have been far from satis...

Glucose was found to be a potential stimulator o f carthamin formation in triturated florets o f C. tinctorius. At a 10 m M glucose level, carthamin-producing activity was raised from 3.2fold (upper) to 2.0-fold (lower) level compared with the control having no sugar. Glucose oxi­ dase (ß-D-glucose: oxygen 1-oxidoreductase, EC 1.1.3.4) from Aspergillus niger could catalyze the conversion of pre...

Mathematical models that simulate crop development are important tools to help growers plan management practices and harvest time for cut flowers such as gladiolus. The objective of this work was validate the PhenoGlad model State Paraná, determining planting date marketing Day Dead, quality floral stems. validation carried out through field tests in five towns namely: Cascavel, Dois Vizinhos, ...

Abstract Crop genetic diversity has a significant role in improving new plants through breeding. The chrysanthemum contains the most mutant varieties, making mutation breeding one of widely utilized procedures for ornamental plants. goal this research is to use gamma irradiation induce variation and improve features. In vitro bud explants white ‘Bacardi’ type were treated with rays at 20 Gy on ...

Male florets and pistillate flowers of cvs.Chandler and Hartley of Persian walnut were cultured on modified Murashige and Skoog medium (MS) supplemented with 0.05 mg l-1 biotin, 0.5 mg l-1 folic acid, 100 mg l-1 glutamine and different concentrations of Naphthalene acetic acid (NAA) and Kinetin (KIN) and for pistillate flowers culture, these concentrations were 0.25, 0.5, 1 and 2 mg l-1). After...

The major components patuletin and patulitrin were isolated from French marigold (florets of Tagetes patula). Patuletin and patulitrin were found to inhibit acute inflammation in mice. Oral administration of patuletin and patulitrin significantly suppressed hind-paw edema induced by carrageenin and histamine, while topical application of patuletin and patulitrin significantly inhibited ear edem...

The enzyme responsible for the conversion of methionine into a precursor of ethylene in cauliflower florets is a transaminase. The formation of 4-methyl-mercapto-2-oxobutyric acid by this enzyme has been shown. The oxo acid stimulates the synthesis of ethylene when added to floret tissue, and tracer experiments have shown that (14)C is incorporated into ethylene from the labelled oxo acid. The ...