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Titolo:
From faith to fate: Ethylene signaling in morphogenic responses to P and Fe deficiency
Autore:
Schmidt, W;
Indirizzi:
Carl Von Ossietzky Univ Oldenburg, Fachbereich Biol Geo & Umweltwissensch,D-26111 Oldenburg, Germany Carl Von Ossietzky Univ Oldenburg Oldenburg Germany D-26111 urg, Germany
Titolo Testata:
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE
fascicolo: 2, volume: 164, anno: 2001,
pagine: 147 - 154
SICI:
1436-8730(200104)164:2<147:FFTFES>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
ARABIDOPSIS-THALIANA; STRESS-RESPONSE; IRON-DEFICIENCY; TRANSFER CELLS; ROOT HAIRS; PHOSPHORUS AVAILABILITY; PHOSPHATE TRANSPORTER; TRANSDUCTION PATHWAY; PLANTS; ACQUISITION;
Keywords:
ethylene; root hairs; iron; phosphate; plant hormones; signal transduction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
54
Recensione:
Indirizzi per estratti:
Indirizzo: Schmidt, W Carl Von Ossietzky Univ Oldenburg, Fachbereich Biol Geo & Umweltwissensch,Postfach 2503, D-26111 Oldenburg, Germany Carl Von Ossietzky Univ Oldenburg Postfach 2503 Oldenburg Germany D-26111
Citazione:
W. Schmidt, "From faith to fate: Ethylene signaling in morphogenic responses to P and Fe deficiency", J PLANT NU, 164(2), 2001, pp. 147-154

Abstract

A number of similarities in the acquisition of iron and phosphate suggest the presence of common elements in the signal transduction chain, regulating cellular homeostasis of the nutrients. Uptake of both elements is mediated by tightly regulated transporters that are induced upon iron starvation and subject to both transcriptional and post-transcriptional control. Changes in root epidermal patterning are induced by sub-optimal availability of Fe and P, leading to the development of additional root hairs and to the formation of transfer cells in the rhizodermis. Based on genetic and pharmacological evidences, an involvement of the plant hormone ethylene in adaptive changes of epidermal cell fate was inferred. Analysis of hormone-related Arabidopsis mutants suggests that, beside similar components, differences in the signaling pathways exist between Fe- and P-deficient plants. The current knowledge of the regulation of epidermal patterning in response to Fe andP starvation is summarized and a model is presented which outlines putative components for the translation of environmental stress signals.

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Documento generato il 09/04/20 alle ore 00:00:51