Background: Using herbs for the treatment of diseases has a long history. Chelidonium majus from the family of Papaveraceae is one of the best-known and most widely used herbs used in traditional medicine. The aim of this study was to review its active components, as well as its therapeutic and toxic effects on body tissues. Methods: This short o...

Investigation of the aerial parts of the Egyptian medicinal plant Ammi majus L. led to isolation of new coumarin, 6-hydroxy-7-methoxy-4 methyl coumarin (2) and 6-hydroxy-7-methoxy coumarin (3); this is the first time they have been isolated from this plant. The structures of the compounds (2 &3) were elucidated by spectroscopic data interpretation and showed anti-inflammatory and anti-viral act...

The transposition frequency of Tam3 in Antirrhinum majus, unlike that of most other cut-and-paste-type transposons, is tightly controlled by temperature: Tam3 transposes rarely at 25 degrees C, but much more frequently at 15 degrees C. Here, we studied the mechanism of the low-temperature-dependent transposition (LTDT) of Tam3. Our results strongly suggest that LTDT is not likely to be due to e...

Homeotic mutants have been useful for the study of animal development. Such mutants are also known in plants. The isolation and molecular analysis of several homeotic genes in Antirrhinum majus provide insights into the underlying molecular regulatory mechanisms of flower development. A model is presented of how the characteristic sequential pattern of developing organs, comprising the flower, ...

A new model to analyse reciprocal transfer experiments to assess stages of photoperiod sensitivity in Antirrhinum has been validated in the present study. Flowering time and leaf numbers data of Antirrhinum cultivars Chimes White, Liberty White, Ariane, Winter Euro Rose, Sonnet and Rocket Orchid were used for the validation of the model. Six plants of each cultivar were transferred from LD to S...

The final larval stadium of Heteragrion majus Selys, 1886 and H. atrolineatum Donnelly, 1992 are described and illustrated for the first time, using reared material from Costa Rica, and compared with other species of the genus known from the country. All species were very similar as larvae, but they can be separated by the presence and distribution of antennal setae, spines on the posterior mar...

The organs of a higher plant show two fundamental axes of asymmetry: proximodistal and dorsoventral. Dorsoventrality in leaves, bracts, and petal lobes of Antirrhinum majus requires activity of the PHANTASTICA (PHAN) gene. Conditional mutants revealed that PHAN is also required for earlier elaboration of the proximodistal axis. PHAN was isolated and shown to encode a MYB transcription factor ho...

Floral homeotic genes that control the specification of meristem and organ identity in developing flowers have been isolated from both Arabidopsis thaliana and Antirrhinum majus. Most of these genes belong to a large family of regulatory genes and possess a characteristic DNA binding domain known as the MADS-box. Members of this gene family display primarily floral-specific expression and are h...

History.?Married?mother of 5 children?last child aged 3 years?all the children are alive and all the labours were normal. For 15 years the patient has had occasional temperature at night. Sometimes she used to have swelling of the right leg which lasted for about 10 or 15 days. For the past 12 years she noticed thickening of her left labium majus, the swelling gradually becoming bigger and bigg...