Cell inclusions

Ergastic, deutoplasmic, paraplasmic bodies are non living, non cytomplasmic substance in vacuoles or cell wall or cytoplasm of eukaryotic cells, also called metaplast or deutoplast.

Its types are:

1. Reserve food materials: It can be starch found as grains; simple or compound, concentric or eccentric in plant cells, glycogen in animal cells and fungi, fat or aleurone grains (protein rich, found in outermost layer of cells of endosperm of cereal grains).
2. Excretory products: Waste (end) products useless to plant. They get accumulated in bark, old leaves, vacuoles and flowers e.g., alkaloids.

1. CaCO₃ crystals around a cellulose core called cystolith e.g. banyan leaf cell.
2. Crystals of calcium oxalate called raphides (needle like e.g. Lemna, Pista, etc.)

3. Secretory products: They are useful to plants. e.g. pigments, nectar, essential oil, enzymes etc. Essential oils are etherial oils and used in perfumery.