Arabidopsis thaliana mitogen-activated protein kinase 6 is involved in seed formation and modulation of primary and lateral root development

Pencarian berdasarkan :

SEMUA Pengarang Subjek ISBN/ISSN Pencarian Spesifik

Pencarian terakhir:

e-journal

Arabidopsis thaliana mitogen-activated protein kinase 6 is involved in seed formation and modulation of primary and lateral root development

J. S. López-Bucio - Nama Orang; J. G. Dubrovsky - Nama Orang; J. Raya-González - Nama Orang; Y. Ugartechea-Chirino - Nama Orang; J. López-Bucio - Nama Orang; L. A. de Luna-Valdez - Nama Orang; M. Ramos-Vega - Nama Orang; P. León - Nama Orang; A. A. Guevara-García - Nama Orang;

Mitogen-activated protein kinase (MAPKs) cascades are signal transduction modules highly conserved in all eukaryotes regulating various aspects of plant biology, including stress responses and developmental programmes. In this study, we characterized the role of MAPK 6 (MPK6) in Arabidopsis embryo development and in post-embryonic root system architecture. We found that the mpk6 mutation caused altered embryo development giving rise to three seed phenotypes that, post-germination, correlated with alterations in root architecture. In the smaller seed class, mutant seedlings failed to develop the primary root, possibly as a result of an earlier defect in the division of the hypophysis cell during embryo development, but they had the capacity to develop adventitious roots to complete their life cycle.In the larger class, the MPK6 loss of function did not cause any evident alteration in seed morphology, but the embryo and the mature seed were bigger than the wild type. Seedlings developed from these bigger seeds were characterized by a primary root longer than that of the wild type, accompanied by significantly increased lateral root initiation and more and longer root hairs. Apparently, the increment in primary root growth resulted from an enhanced cell production and cell elongation. Our data demonstrated that MPK6 plays an important role during embryo development and acts as a repressor of primary and lateral root development.

Key words: Arabidopsis, embryo development, MAP kinases, MPK6, plant signalling, root development.

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri: Journal of Experimental Botany
No. Panggil: -
Penerbit: : Oxford University Press on behalf of the Society for Experimental Biology., 2014
Deskripsi Fisik: Journal of Experimental Botany, Vol. 65, No. 1, pp. 169–183, 2014
Bahasa: English
ISBN/ISSN: -
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: -
Subjek: PERTANIAN.
Info Detail Spesifik: -
Pernyataan Tanggungjawab: Agus

Versi lain/terkait

Tidak tersedia versi lain

Lampiran Berkas

Arabidopsis thaliana mitogen-activated protein kinase 6 is involved in seed formation and modulation of primary and lateral root development

Komentar

Anda harus masuk sebelum memberikan komentar