Biology, asked by syapina8542, 1 year ago

In which fleshy pericarp stone cells or brachysclereids are present?

Answers

Answered by candynithish
1

Sclereids are a reduced form of sclerenchyma cells with highly thickened, lignified cellular walls that form small bundles of durable layers of tissue in most plants.[1] The presence of numerous sclereids form the cores of apples and produce the gritty texture of guavas.

Although sclereids are variable in shape, the cells are generally isodiametric, prosenchymatic, forked, or elaborately branched. They can be grouped into bundles, can form complete tubes located at the periphery, or can occur as single cells or small groups of cells within parenchyma tissues. An isolated sclereid cell is known as an idioblast. Sclereids are typically found in the epidermis, ground tissue, and vascular tissue.

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Answered by rithudevarasetty
1

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Stone Cells

or sclereids, plant cells with considerably thickened, stratified, lignified, sometimes suberized or cutinized walls frequently saturated with calcium salts or silica and pierced by pore canaliculi. Mature stone cells have no live contents.

Stone cells solidify tissues. The commonest are short stone cells, or brachysclereids, which are arranged in groups, or concretions, in fruit pith (pear, quince, chokeberry), rhizomes (peony, anemone), roots (horseradish), and phloem (oak, beech); less commonly, they form solid layers in the pericarp of nuts and acorns and cherry and plum pits. Elongated stone cells, or mac-rosclereids, usually form a solid layer in the seed coat (bean). Solitary stone cells, or idioblasts, are usually star-shaped (as-terosclereids) and found in fir bark, yellow water lily stems, and petioles; others extend from the top to bottom pellicle of a leaf, thereby making it tougher (tea, camellia).

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