| ||||||||||||||||||||
Coleoptile growth in anoxic rice seedlings
Few plant organs grow when anoxic; the rice coleoptile is a rare exception. The anaerobic elongation by the coleoptile establishes a ‘snorkel’ for rice sown in flooded fields. Huang et al. (pp. 271-278) show that anoxia inhibits K+ translocation from the caryopses to the coleoptile much less than K+ uptake from the medium, and that K+ translocation is directed mainly towards the growing zone.
| ||||||||||||||||||||