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Plant Signal Behav. 2017 Oct 3;12(10):e1376158. doi: 10.1080/15592324.2017.1376158. Epub 2017 Sep 7.

Synergistic relationship between auxin and cytokinin in the ovary and the participation of the transcription factor SPATULA.

Author information

1
a Unidad de Genómica Avanzada (LANGEBIO) , Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN) , Irapuato , Guanajuato , México.
2
b Departamento de Biotecnología y Bioquímica , Unidad Irapuato, CINVESTAV-IPN , Irapuato , Guanajuato , México.

Abstract

The phytohormones auxin and cytokinin are key regulators of plant development, and both regulate almost all aspects of plant growth and development. Communication between auxin-cytokinin signaling pathways has been the subject of intense research. However, few studies have focused specifically on the development of the early gynoecium. We have recently discovered that cytokinin signaling plays a role in the regulation of auxin biosynthesis and transport in the ovary region of the gynoecium, and that the transcription factor SPATULA (SPT) is necessary. Here, we provide evidence that indicates that cytokinin and auxin have a synergistic relationship at the medial domain during gynoecium development, and that SPT is important for this interaction.

KEYWORDS:

Auxin; Cytokinin; SPATULA; gynoecium; hormonal communication

PMID:
28880725
PMCID:
PMC5647943
DOI:
10.1080/15592324.2017.1376158
[Indexed for MEDLINE]
Free PMC Article

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