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Titolo:
Blue light signaling chains in Phycomyces: Phototransduction of carotenogenesis and morphogenesis involves distinct protein kinase/phosphatase elements
Autore:
Tsolakis, G; Parashi, E; Galland, P; Kotzabasis, K;
Indirizzi:
Univ Crete, Dept Biol, Heraklion 71409, Crete, Greece Univ Crete Heraklion Crete Greece 71409 l, Heraklion 71409, Crete, Greece Univ Marburg, Fachbereich Biol, D-35032 Marburg, Germany Univ Marburg Marburg Germany D-35032 eich Biol, D-35032 Marburg, Germany
Titolo Testata:
FUNGAL GENETICS AND BIOLOGY
fascicolo: 3, volume: 28, anno: 1999,
pagine: 201 - 213
SICI:
1087-1845(199912)28:3<201:BLSCIP>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
CELL-SHAPE CONTROL; NEUROSPORA-CRASSA; GENE-EXPRESSION; OKADAIC ACID; CHLAMYDOMONAS-REINHARDTII; SACCHAROMYCES-CEREVISIAE; MEMBRANE-PROTEIN; FISSION YEAST; HIGHER-PLANTS; TRANSDUCTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
49
Recensione:
Indirizzi per estratti:
Indirizzo: Kotzabasis, K Univ Crete, Dept Biol, POB 2208, Heraklion 71409, Crete, Greece Univ Crete POB 2208 Heraklion Crete Greece 71409 ete, Greece
Citazione:
G. Tsolakis et al., "Blue light signaling chains in Phycomyces: Phototransduction of carotenogenesis and morphogenesis involves distinct protein kinase/phosphatase elements", FUNGAL G B, 28(3), 1999, pp. 201-213

Abstract

Carotenogenesis and morphogenesis represent two of the several responses sensitive to blue light which characterize the lower eukaryote Phycomyces blakesleeanus, Speculating that reversible phosphorylation may be an intracellular event beyond the photoperception step, we resorted to the use of first-choice inhibitors of protein phosphatases and protein kinases, The mycelial beta-carotene content of dark-grown cultures was induced by all agents administered, while the morphogenic output showed the typical trend effectedby light only with one of the protein kinase inhibitors. Our data provide convincing evidence that protein phosphorylation plays a regulatory role inphotocarotenogenesis and photomorphogenesis of Phycomyces, According to the model we propose, the putative signaling elements involved are anticipated to have a repressive function in the dark so that the responses are maintained in the "off" mode until the moment photon information has to flow through the regulatory circuit, (C) 1999 Academic Press.

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Documento generato il 23/01/21 alle ore 10:10:21