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Titolo:
ADVENTITIOUS ROOT DIFFERENTIATION IN HAZELNUT (CORYLUS-AVELLANA L) COTYLEDONS
Autore:
GONZALEZ A; TAMES RS; RODRIGUEZ R;
Indirizzi:
UNIV OVIEDO,FAC BIOL,DEPT BOS,FISIOL VEGETAL LAB OVIEDO SPAIN
Titolo Testata:
Phyton
fascicolo: 2, volume: 54, anno: 1993,
pagine: 119 - 126
SICI:
0031-9457(1993)54:2<119:ARDIH(>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
ETHYLENE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
A. Gonzalez et al., "ADVENTITIOUS ROOT DIFFERENTIATION IN HAZELNUT (CORYLUS-AVELLANA L) COTYLEDONS", Phyton, 54(2), 1993, pp. 119-126

Abstract

Cytological and ultrastructural changes associated with root differentiation were studied in an experimental system consisting of cotyledonsections of germinated Corylus avellana L. seeds. After 10 days in culture, the parenchyma cells of the proximal surface of the cotyledon divided and proceeded to form meristematic centres. These meristematic centres gave rise to root primordia and roots. Three main stages in vessel differentiation during root induction were observed under electron microscopy: cell growth in volume, elaboration of secondary wall andcytoplasmic autolysis. Deposition of secondary thickenings and lignification were correlated with a marked development of rough endoplasmicreticulum and mitochondrial activity. The final vessel development isachieved after cytoplasmic autolysis, nucleus breakdown and organelledisintegration.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 19:20:31