Coleoptiles are gravi-guiding systems vital for gravi-insensitive shoots of germinating grass seedlings.
Surgical removal of the coleoptiles from germinating seedlings of Secale cereale L., Avena sativa L., and Zea mays L. leads to a total loss of gravitropic response of the shoot without affecting growth. The principal function of coleoptiles is therefore to guide the gravi-insensitive shoot to the soil surface.
Edelmann
H G
HG
Botanisches Institut, Universitat Bonn, Germany.
D018554:Avena / Q000254:growth & development* / Q000502:physiology; D018548:Cotyledon / Q000254:growth & development / Q000502:physiology*; D018466:Gravity Sensing / Q000502:physiology*; D018521:Plant Physiological Phenomena; D018520:Plant Shoots / Q000254:growth & development / Q000378:metabolism / Q000502:physiology; D012434:Secale / Q000254:growth & development* / Q000502:physiology; D003313:Zea mays / Q000254:growth & development* / Q000502:physiology