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Titolo:
THE TEMPORAL CORRELATION OF CHANGES IN APOPLAST PH AND GROWTH-RATE INMAIZE COLEOPTILE SEGMENTS
Autore:
PETERS WS; LUTHEN H; BOTTGER M; FELLE H;
Indirizzi:
UNIV GIESSEN,INST BOT 1,SENCKENBERGSTR 17-21 D-35390 GIESSEN GERMANY UNIV HAMBURG,INST ALLGEMEINE BOT D-22609 HAMBURG GERMANY
Titolo Testata:
Australian journal of plant physiology
fascicolo: 1, volume: 25, anno: 1998,
pagine: 21 - 25
SICI:
0310-7841(1998)25:1<21:TTCOCI>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
AUXIN-INDUCED GROWTH; CELL-WALL ACIDIFICATION; AVENA COLEOPTILES; ELECTRICAL RESPONSE; CORN COLEOPTILES; PUMP STIMULATION; OAT COLEOPTILES; ACID-SOLUTIONS; STEM SEGMENTS; PROTON-PUMP;
Keywords:
ZEA MAYS L.; ACID-GROWTH THEORY; AUXIN; INDOLE-3-ACETIC ACID; CELL WALL PH; COLEOPTILE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
53
Recensione:
Indirizzi per estratti:
Citazione:
W.S. Peters et al., "THE TEMPORAL CORRELATION OF CHANGES IN APOPLAST PH AND GROWTH-RATE INMAIZE COLEOPTILE SEGMENTS", Australian journal of plant physiology, 25(1), 1998, pp. 21-25

Abstract

Auxin induces extracellular acidification in growing shoot tissue, The causal relationship between this process and auxin-mediated growth is debated, partly because of contradicting previous reports on the temporal correlation of auxin-induced apoplast pH-drops and growth bursts, We have simultaneously measured both parameters on the background ofspontaneously occurring endogenous changes in growth rate and apoplast pH in maize coleoptile segments. Our data demonstrate good temporal correlation, during both the 'Spontaneous Growth Response' and the response to exogenous auxin, which is transient under the conditions chosen due to rapid auxin metabolism. We suggest that cell wall pH and growth rate are co-regulated in this organ, and that contradictions in the literature might be due to technical difficulties.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 04:16:07