Leucoplasts, specifically, amyloplasts

Leucoplasts are a category of plastid and as such are organelles found in plant cells. They are non-pigmented, in contrast to other plastids such as the chloroplast. ImageMetadata File history File links Download high resolution version (741x702, 206 KB) A potato cell containing amyloplasts. ... ImageMetadata File history File links Download high resolution version (741x702, 206 KB) A potato cell containing amyloplasts. ... Amyloplasts in a potato cell Amyloplasts (are a form of leucoplasts) are non-pigmented organelles found in plant cells responsible for the storage of starch through the polymerisation of glucose. ... Plant cells with visible chloroplasts. ... Schematic of typical animal cell, showing subcellular components. ... Plant cell structure Plant cells are quite different from the cells of the other eukaryotic kingdoms organisms. ... Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. ...

Lacking pigments, leucoplasts are not green, so they are predictably located in roots and non-photosynthetic tissues of plants. They may become specialized for bulk storage of starch, lipid or protein and are then known as amyloplasts, elaioplasts, or proteinoplasts respectively. However, in many cell types, leucoplasts do not have a major storage function and are present to provide a wide range of essential biosynthetic functions, including the synthesis of fatty acids, many amino acids, and tetrapyrrole compounds such as haem. In general, leucoplasts are much smaller than chloroplasts and have a variable morphology, often described as amoeboid. Extensive networks of stromules interconnecting leucoplasts have been observed in epidermal cells of roots, hypocotyls and petals, and in callus and suspension culture cells of tobacco. In some cell types at certain stages of development, leucoplasts are clustered around the nucleus with stromules extending to the cell periphery, as observed for proplastids in the root meristem. Natural Ultramarine pigment in powdered form. ... For other uses, see Root (disambiguation). ... Starch (CAS# 9005-25-8, chemical formula (C6H10O5)n,[1]) is a mixture of amylose and amylopectin (usually in 20:80 or 30:70 ratios). ... Some common lipids. ... A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... Amyloplasts in a potato cell Amyloplasts (are a form of leucoplasts) are non-pigmented organelles found in plant cells responsible for the storage of starch through the polymerisation of glucose. ... Elaioplasts are plastids found in plant cells responsible for the storage of fat. ... Proteinoplasts (sometimes called proteoplasts and aleuronaplasts) are specialized organelles found only in plant cells. ... Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. ... Stromules are microscopic structures found in plant cells. ... For other uses, see Root (disambiguation). ... Hypocotyl is a botanical term for a part of a germinating seedling of a seed plant. ... It has been suggested that Corolla be merged into this article or section. ... This article is about calluses and corns of human skin. ... HeLa cells stained for DNA with the Blue Hoechst dye. ...

Etioplasts, which are pre-granal, immature chloroplasts but can also be chloroplasts which have been deprived of light, lack active pigment and can technically be considered leucoplasts. After several minutes exposure to light, etioplasts begin to transform into functioning chloroplasts and cease being leucoplasts. An etioplast is a chloroplast that has not been exposed to light. ... Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. ...

Compare

• Plastid
  • Chloroplast and etioplast
  • Chromoplast
  • Leucoplast
    • Amyloplast
    • Elaioplast
    • Proteinoplast

Image File history File links Plastids_types. ... Plant cells with visible chloroplasts. ... Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. ... An etioplast is a chloroplast that has not been exposed to light. ... Chromoplasts are plastids responsible for pigment synthesis and storage. ... Amyloplasts in a potato cell Amyloplasts (are a form of leucoplasts) are non-pigmented organelles found in plant cells responsible for the storage of starch through the polymerisation of glucose. ... Elaioplasts are plastids found in plant cells responsible for the storage of fat. ... Proteinoplasts (sometimes called proteoplasts and aleuronaplasts) are specialized organelles found only in plant cells. ...

External links

• Stromules: a characteristic cell-specific feature of plastid morphology. : A good review on stromules (unfortunately access is restricted to suscribers)