The control of apical dominance:  localization of the growth region of the Pharbitis nil shoot.
The growing region of the upright Pharbitis nil shoot extends over a distance 13 cm basipetal to the shoot apex.  When the shoot is inverted, ethylene production in this region is greatly enhanced whereas stem elongation is significantly inhibited.  This growth region is ethylene-sensitive and the restriction of its growth by shoot inversion-induced ethylene may mediate the release of apical dominance.
Prasad
T K
TK
Department of Botany, Ohio State University, Columbus 43210, USA.
Cline
M G
MG
D005030:Ethylenes / Q000037:antagonists & inhibitors / Q000096:biosynthesis* / Q000378:metabolism; D018522:Gravitropism / Q000187:drug effects / Q000502:physiology*; D009943:Organophosphorus Compounds / Q000494:pharmacology; D063245:Plant Development; D010937:Plant Growth Regulators / Q000096:biosynthesis* / Q000378:metabolism / Q000494:pharmacology; D018520:Plant Shoots / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism / Q000502:physiology; D018547:Plant Stems / Q000254:growth & development / Q000378:metabolism / Q000502:physiology; D010944:Plants / Q000187:drug effects / Q000378:metabolism; D012835:Silver Nitrate / Q000494:pharmacology
D005030:Ethylenes; D009943:Organophosphorus Compounds; D010937:Plant Growth Regulators; C036216:ethylene; D012835:Silver Nitrate; C005073:ethephon