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Coleorhiza

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– References:
– Barrero, José M.; Talbot, Mark J.; White, Rosemary G.; Jacobsen, John V.; Gubler, Frank (June 2009). Anatomical and Transcriptomic Studies of the Coleorhiza Reveal the Importance of This Tissue in Regulating Dormancy in Barley.
– Published in Plant Physiology.
– Volume 150, Issue 2, Pages 1006–1021.
– DOI: 10.1104/pp.109.137901.
– PMC ID: 2689963. PMID: 19386806.

– External Links:
– Difference between coleoptile and coleorhiza.
– Coleoptile definition: The plumule is protected by coleoptile sheaths, which develop into shoots.
– Source: https://en.wikipedia.org/w/index.php?title=Coleorhiza&oldid=1215867648.
– Category: Plant anatomy.

– Importance of Coleorhiza:
– Regulates dormancy in barley.
– Anatomical studies highlight its significance.
– Transcriptomic studies reveal its role in dormancy.
– Essential tissue for seed development.
– Supports seed germination.

– Coleorhiza vs. Coleoptile:
– Coleorhiza protects the radicle.
– Coleoptile shields the plumule.
– Coleoptile develops into the shoot.
– Coleorhiza aids in seed germination.
– Distinct protective roles during seedling growth.

– Plant Physiology Significance:
– Coleorhiza’s role in dormancy.
– Understanding seed development mechanisms.
– Implications for crop yield and resilience.
– Research on seed germination processes.
– Potential applications in agriculture.

Coleorhiza (Wikipedia)

The coleorhiza or root sheath is a protective layer of tissue that surrounds the radicle (the embryonic primary root) in monocotyledon seeds. During germination, the coleorhiza is the first part to grow out of the seed, growing through cell elongation. Soon afterwards, it is pierced through by the emerging primary root and then remains like a collar around the root base. Also the adventitious roots have a coleorhiza.

  • Coleorhiza with sweet corn
    Coleorhiza with sweet corn
  • Collar of the coleorhiza and coleoptile with sweetcorn
    Collar of the coleorhiza and coleoptile with sweetcorn
  • Grain of wheat. co = coleorhiza, r1 and r2 = root
    Grain of wheat. co = coleorhiza, r1 and r2 = root
  • Corn grain length section, A=Pericarp, B=Aleurone, C=Tip cap, D=Endosperm, E=Coleorhiza, F=Radicle, G=Hypocotyl, H=Plumule, I=Scutellum, J=Coleoptile. Scale=1.4mm.
    Corn grain length section, A=Pericarp, B=Aleurone, C=Tip cap, D=Endosperm, E=Coleorhiza, F=Radicle, G=Hypocotyl, H=Plumule, I=Scutellum, J=Coleoptile. Scale=1.4mm.
  • Root of corn with rootcap and coleorhiza
    Root of corn with rootcap and coleorhiza
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