By Mrs. S. S.HAJIRNIS. DEPARTEMNT OF BOTANY. SATISH PRADHAN DNYANASADHANA COLLEGE,THANE(W)
Chromoplasts------store coloured pigments giving different colours to the parts of plants like phycocyanin, phycoerythrin (algae), lycopene(Tomato, papaya) Elaioplasts colourless are leucoplasts 1) Amyloplasts – Storing Starch 2) Elaioplasts- storing oil 3) Aleuroneplasts– Storing Proteins.
Shape- cup-shaped (Volvox), Spirogyra (ribbon-shaped) Girdle-shaped (Ulothrix) Reticulate (Oedogonium) Star-shaped (Zygnema) Spherical, ovoid or discoid (Higher plants) Size-4-6 µm, larger in shade-loving plasts. No.- 1 (alga), (higher plants) Position- (centre or periphery)
Ultrastucture Chloroplasts consists of three parts: 1) Envelope or Peristomium
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