sieve tubes in pholem
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Sieve tube, in flowering plants, elongated living cells (sieve-tube elements) of the phloem, the nuclei of which have fragmented and disappeared and the transverse end walls of which are pierced by sievelike groups of pores (sieve plates). They are the conduits of food (mostly sugar) transport.
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Seive tubes are found in the phloem tissue. They transport sugars and nutrients up and down the length of the plant.
- Phloem are the living tissue found in the plants that are responsible for transport of nutrients from the parts involved in photosynthesis (leaves) to other parts of the plant.
- Sieve tubes are the main constituents of the phloem tissue and are vital for their functioning. These are slender tube-shaped structures, arranged back to back. They are elongated and thin-walled structures.
- Due to their back to back arrangement, the Seive tubes are able to form a channel for conduction of sugars (carbohydrates)and other nutrients to the entire plant.
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