Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
EFFECT OF CHANGING THE ENDOGENOUS CONCENTRATION OF AUXINS AND CYTOKININS AND THE PRODUCTION OF ETHYLENE IN PEA STEM CUTTINGS ON ADVENTITIOUS ROOT-FORMATION
Autore:
KOUKOURIKOUPETRIDOU MA; BANGERTH F;
Indirizzi:
ARISTOTELIAN UNIV THESSALONIKI,LAB BIOL HORT GR-54006 THESSALONIKI GREECE UNIV HOHENHEIM,INST OBST & GEMUSE & WEINBAU D-70593 STUTTGART GERMANY
Titolo Testata:
Plant growth regulation
fascicolo: 2, volume: 22, anno: 1997,
pagine: 101 - 108
SICI:
0167-6903(1997)22:2<101:EOCTEC>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
MUNG BEAN CUTTINGS; APICAL DOMINANCE; ACID; ETHEPHON; PLANTS;
Keywords:
AUXINS; CYTOKININS; ETHYLENE; PEA-CUTTINGS; ROOTING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
M.A. Koukourikoupetridou e F. Bangerth, "EFFECT OF CHANGING THE ENDOGENOUS CONCENTRATION OF AUXINS AND CYTOKININS AND THE PRODUCTION OF ETHYLENE IN PEA STEM CUTTINGS ON ADVENTITIOUS ROOT-FORMATION", Plant growth regulation, 22(2), 1997, pp. 101-108

Abstract

Decapitation or treatment with naphthylphthalamic acid (NPA) - an inhibitor of IAA transport - or a synthetic cytokinin N-(2-chloro-4-pyridyl)-N-phenylurea (CPPU) caused a decrease in rooting of pea cuttings. However the mode of action of the above treatments was different. Decapitation resulted in a decrease of indole-3-acetic acid (IAA) and a simultaneous increase in cytokinin content at the base of the cuttings. NPA decreased IAA even more, but did not influence cytokinins. CPPU alone or in combination with amino-ethoxy-vinylglycine (AVG) - an ethylene biosynthesis inhibitor - increased IAA at the rooting zone, but CPPU was transported from apex to the base of the cuttings where it inhibited rooting. NAA, applied alone after decapitation, stimulated rooting, probably partly by being an auxin, and partly by inhibiting the accumulation of cytokinins at the base of the cuttings. Treatment with AVG neither influenced rooting nor auxin or cytokinin content. Therefore, ethylene production does not seem to be one of the main factors involved in the reduced rooting after the various treatments.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 06:12:06