Describe modifications of stem with suitable examples
Stems of diverse vegetation have gone through adjustments to carry out specific functions. Underground stems or garage stems: Examples: Rhizomes, Corms, tubers In ginger and banana, the underground stem is referred to as a rhizome. The underground stem in Colocasia (arvi) is known as corm. Rhizomes and corms are underground stems, changed for the garage of meals. Also, those stems assist in vegetative duplicate of those flowers. The hints of the underground stem in potato plant life end up swollen because of the accumulation of meals. The potato is a tuber that allows withinside the garage of meals and bears eyes on it. Subtended with the aid of using a leaf scar, those eyes undergo buds that provide upward thrust to new plant life. Supportive stems Example: tendril The stem in a few vulnerable flora undergo thin, slender, and spirally-coiled systems known as tendrils that assist the plant get connected to close by systems for support. Tendrils are discovered in cucumbers, melons, and different participants of the familyCucurbitaceae. Protective stems Example: ThornsThe stem in bougainvillea and citrus flora (like lemon and orange) endure sharp, pointed systems known as thorns, which give safety to the plant from herbivores. Photosynthetic stems Example: Opuntia The stem withinside the Opuntia is green. It contains out the technique of photosynthesis withinside the absence of leaves. Others stem adjustments In a few plant life, underground stems including grasses unfold withinside the soil and assist in perenation. These stems are referred to as runners. The quick lateral stem known as the offset in a few aquatic vegetation (which include Eichhornia) bears leaves and tufts of roots at the node and offers upward thrust to new flowers.
