Mr 10 Divergence Betwixt Spines As Well As Thorns
Spines are sharp, pointed structures which are modified leaves. They laissez passer protection to the plants from herbivores. For lawsuit inward Opuntia infinitesimal leaves of axillary buds prepare into spines. In pineapple,(Annanas) as well as century plant(Agave), margins of the leaves are modified into spines. These are feature of xerophytes.
Thorns are woody, conduct as well as pointed structures. They laissez passer protection as well as attention inward climbing. Thorns are institute inward many plants such every bit Citrus, Canthium, Bougainvillea as well as Duranta. They are modified axillary buds. Thorns are endogenous(developing from internal tissues) piece prickle every bit seen inward rase are exogenous (developing from surface similar epidermis).
Spines vs Thorns
Spines | Thorns |
Spines are alteration of leaves or purpose of leaves. | Thorns are alteration of branches. |
They occupy the same pose every bit the leaves as well as deport a bud inward their axil. | They are formed inward the axil of the leaves inward house of a bud. |
Function include protection (defense) as well as every bit good preclude excessive transpiration. | Function include protection (defense) as well as every bit good serves every bit a climbing organ of the plant. |
It does non as well as thus deeply seated as well as may non survive connected alongside vascular tissues. | Deeply seated as well as has connecter alongside vascular tissues. |
Spines are exogenous inward root that is formed from tissues introduce externally. | Thorns are endogenous inward root that is formed from deeply seated tissues of the plant. |
Example: Opuntia, Agave | Example: Carissa, Duranta |
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