Title: Developmental Ultrastructure of Cells and Plastids in the Petals of Wallflower (Erysimum cheiri)
Abstract:Abstract An ultrastructural study of petal cells of wallflower ( Erysimum cheirii ) of the family Brassicaceae shows that the adaxial epidermal cells are of the conical papillate type whereas the cell...Abstract An ultrastructural study of petal cells of wallflower ( Erysimum cheirii ) of the family Brassicaceae shows that the adaxial epidermal cells are of the conical papillate type whereas the cells of the abaxial epidermis are lenticular in shape. The abaxial epidermis contains stomata, which are solitary and lack any obvious subsidiary cells. Pigmentation is apparent in both epidermal and internal mesophyll cells and results from the presence of both chromoplasts and large cytoplasmic vesicles containing pigment. These pigmented vesicles are very obvious in preparations of fixed isolated petal cells. Chromoplasts are of the globular type and are present in significant numbers in both epidermal and mesophyll cells. Division of chloroplasts in young petals prior to bud break appears to give rise to the populations of chromoplasts observed in mature petals since there was no evidence of chromoplast division itself. The development of wallflower petals and their chromoplasts is discussed in relation to development of petals in the related species Arabidopsis thaliana .Read More
Publication Year: 1999
Publication Date: 1999-12-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 28
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot