a 2007

The role of cytokinin in regulation of early root development and organogenesis in Arabidopsis

KUDEROVÁ, Alena, Ivana URBÁNKOVÁ, Martina VÁLKOVÁ, Jiří MALBECK, Danka NÉMETHOVÁ et. al.

Basic information

Original name

The role of cytokinin in regulation of early root development and organogenesis in Arabidopsis

Name in Czech

Úloha cytokininů v procesu rané organogeneze u Arabidopsis

Authors

KUDEROVÁ, Alena, Ivana URBÁNKOVÁ, Martina VÁLKOVÁ, Jiří MALBECK, Danka NÉMETHOVÁ and Jan HEJÁTKO

Edition

Book of Abstracts, IPGSA 19th Annual Meeting, Puerto Vallarta, Mexico, 2007. p. 96. 2007

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

Genetics and molecular biology

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Organization unit

Faculty of Science

Keywords in English

Arabidopsis thaliana; Auxin-cytokinin cross-talk; CaMV 35S>GR>ipt transactivation; DR5 activity; Endogenous cytokinin; Root development

Tags

International impact
Změněno: 27/5/2013 11:57, RNDr. Alena Kuderová, CSc.

Abstract

V originále

A poster presented by Alena Kuderova at the "IPGSA 19th Annual Meeting", Puerto Vallarta, Mexico, July, 2007. While auxin role in root development has been thoroughly studied, the detailed description of cytokinin (CK) effects on root system morphology has been missing. Here we examine the effects of CK on root architecture during early development of Arabidopsis thaliana. At designated developmental points, greatly enhanced levels of biologically active CKs of zeatin-type identified a distinct developmental interval during which primary root (PR) elongation is susceptible to increases in the endogenous CK production. CK reduced quantitative parameters of PR meristems, disturbed graded distribution pattern of auxin response in LR primordia and impaired their development. Our findings suggest a negative role of CK in the regulation of the asymmetric auxin distribution and imply that there is crosstalk between the auxin and CK pathways during LR primordia development in A. thaliana.

In Czech

Plakátové sdělení na sympoziu "IPGSA 19th Annual Meeting", prezentováno Alenou Kuderovou v Puerto Vallarta, Mexiko, 21.-25.7.2007. Tato práce zkoumá, jaké účinky má podmíněná nadprodukce endogenních CK na strukturu kořene a organogenezi v rámci vývoje primordií laterálních kořenů, a posuzuje její působení v čase během raného vývoje kořenového systému Arabidopsis thaliana.

Links

LC06034, research and development project
Name: Regulace morfogeneze rostlinných buněk a orgánů
Investor: Ministry of Education, Youth and Sports of the CR, Regulation of morphogenesis of plant cells and organs
MSM0021622415, plan (intention)
Name: Molekulární podstata buněčných a tkáňových regulací
Investor: Ministry of Education, Youth and Sports of the CR, Molecular basis of cell and tissue regulations