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חיפוש מתקדם
Israel Journal of Botany
Joel, D.M., Division of Weed Research, Agricultural Research Organization, Regional Experiment Station, Neve-Ya’ar, Haifa, 31999, Israel
Heide-Jørgensen, H.S., Institute of Plant Anatomy and Cytology, University of Copenhagen, Sølvgade 83, Copenhagen, DK-1307, Denmark
The bottom zone of the pitcher of the carnivorous plant Sarracenia was investigated using light and electron microscopy. The rectangular epidermal cells have dense cytoplasm with a large nucleus, many mitochondria and chloroplasts. The cuticular membrane is thin, its cutinized layer becoming discontinuous during the maturation of the pitcher. The anticlinal walls of the epidermal cells are partly lignified and seem to permit apoplastic diffusion. The hypodermal cells are provided with a secondary suberized wall, and a silver hexamine positive “plug” fills the gap between neighbouring hypodermal cells. The hypodermis therefore resembles the bundle sheath cells of certain grasses. Simple pits traversed by many plasmodesmata connect each hypodermal cell with its neighbouring epidermal, hypodermal and mesophyll cells. The structure and development of the pitcher epithelium is described and its function discussed. © 1985 Taylor and Francis Group, LLC.
פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
Ultrastructure and development of the pitcher epithelium of sarracenia
34
Joel, D.M., Division of Weed Research, Agricultural Research Organization, Regional Experiment Station, Neve-Ya’ar, Haifa, 31999, Israel
Heide-Jørgensen, H.S., Institute of Plant Anatomy and Cytology, University of Copenhagen, Sølvgade 83, Copenhagen, DK-1307, Denmark
Ultrastructure and development of the pitcher epithelium of sarracenia
The bottom zone of the pitcher of the carnivorous plant Sarracenia was investigated using light and electron microscopy. The rectangular epidermal cells have dense cytoplasm with a large nucleus, many mitochondria and chloroplasts. The cuticular membrane is thin, its cutinized layer becoming discontinuous during the maturation of the pitcher. The anticlinal walls of the epidermal cells are partly lignified and seem to permit apoplastic diffusion. The hypodermal cells are provided with a secondary suberized wall, and a silver hexamine positive “plug” fills the gap between neighbouring hypodermal cells. The hypodermis therefore resembles the bundle sheath cells of certain grasses. Simple pits traversed by many plasmodesmata connect each hypodermal cell with its neighbouring epidermal, hypodermal and mesophyll cells. The structure and development of the pitcher epithelium is described and its function discussed. © 1985 Taylor and Francis Group, LLC.
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