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Titolo:
Mitotic B-type cyclins are differentially regulated by phytohormones and during yellow lupine nodule development
Autore:
Jelenska, J; Deckert, J; Kondorosi, E; Legocki, AB;
Indirizzi:
Polish Acad Sci, Inst Bioorgan Chem, PL-61704 Poznan, Poland Polish Acad Sci Poznan Poland PL-61704 gan Chem, PL-61704 Poznan, Poland Adam Mickiewicz Univ, Lab Plant Ecophysiol, PL-61713 Poznan, Poland Adam Mickiewicz Univ Poznan Poland PL-61713 iol, PL-61713 Poznan, Poland CNRS, Inst Sci Vegetales, F-91198 Gif Sur Yvette, France CNRS Gif Sur Yvette France F-91198 tales, F-91198 Gif Sur Yvette, France
Titolo Testata:
PLANT SCIENCE
fascicolo: 1, volume: 150, anno: 2000,
pagine: 29 - 39
SICI:
0168-9452(20000114)150:1<29:MBCADR>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
CELL-CYCLE; SIGNAL MOLECULES; SESBANIA-ROSTRATA; GENE HOMOLOGS; PLANT CYCLINS; EXPRESSION; RHIZOBIUM; CDNA; CLASSIFICATION; ARABIDOPSIS;
Keywords:
cell cycle; cyclins; expression; Lupinus luteus;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Legocki, AB Polish Acad Sci, Inst Bioorgan Chem, Noskowskiego 12-14, PL-61704 Poznan, Poland Polish Acad Sci Noskowskiego 12-14 Poznan Poland PL-61704 and
Citazione:
J. Jelenska et al., "Mitotic B-type cyclins are differentially regulated by phytohormones and during yellow lupine nodule development", PLANT SCI, 150(1), 2000, pp. 29-39

Abstract

The progression of cell cycle in eukaryotes is controlled by protein complexes composed of p34 protein kinase and cyclin subunits. Recently, we have described four B1 type mitotic cyclin in yellow lupine. The presence of several closely related cyclin genes within the same plant species raised the question about tissue specificity of respective cyclins or their different regulations by plant-specific signals. Therefore, we examined the expression pattern of four B1 cyclins in various lupine tissues, with special emphasis put on developing root nodules. We also studied the effect of phytohormones on the level of respective cyclin mRNAs. As expected, cyclin transcriptaccumulation was restricted to proliferating tissues. Detailed analysis byreverse transcription-PCR and using primers specific to each cyclin allow to establish that different genes are engaged in cell divisions of various meristematic tissues. All four genes were activated during nodule development, however, the Cyc3 and Cyc4 genes mostly at the early stages of nodulation, whereas the Cyc1 and Cyc2 genes within the mature nodule organs. The expression of cyclins was regulated differently by plant growth factors. Bothauxin and cytokinin induced the Cyc1 and Cyc4 genes and their transcript level was also abundant within the root, shoot and floral meristems. The precise localisation of cyclin transcripts by in situ hybridisation revealed that lupine nodule meristem was active during the whole process of nodule development, even in old organs. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 16:59:58