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Literature DB >> 25763627

Plant hemoglobin participation in cell fate determination.

Shuanglong Huang¹, Robert D Hill, Claudio Stasolla.

Abstract

Plant hemoglobins (Hbs) have been identified as master regulators in determining the developmental fate of specific cells during maize embryogenesis. Whether an embryogenic cell lives or undergoes programmed cell death (PCD) is modulated by Hbs, through their tight interactions with nitric oxide (NO) and auxin. During maize embryogenesis, Hb-suppressing cells accumulate NO, are depleted of auxin, and are committed to die. We propose that Hbs control cell fate by regulating NO and auxin homeostasis, and that this type of mechanism may influence other hormonal responses modulating plant behavior during development and stress conditions.

Entities: Chemical Disease Species

Keywords: cell fate; embryogenesis; hemoglobin; hormone; nitric oxide

Mesh：

Substances：

Year: 2014 PMID： 25763627 PMCID： PMC4205130 DOI： 10.4161/psb.29485

Source DB: PubMed Journal: Plant Signal Behav ISSN： 1559-2316

30 in total

1. Different auxin response machineries control distinct cell fates in the early plant embryo.

Authors: Eike H Rademacher; Annemarie S Lokerse; Alexandra Schlereth; Cristina I Llavata-Peris; Martin Bayer; Marika Kientz; Alejandra Freire Rios; Jan Willem Borst; Wolfgang Lukowitz; Gerd Jürgens; Dolf Weijers
Journal: Dev Cell Date: 2012-01-17 Impact factor: 12.270

2. Nitric oxide is required for, and promotes auxin-mediated activation of, cell division and embryogenic cell formation but does not influence cell cycle progression in alfalfa cell cultures.

Authors: Krisztina Otvös; Taras P Pasternak; Pál Miskolczi; Mónika Domoki; Dulguun Dorjgotov; Attila Szucs; Sándor Bottka; Dénes Dudits; Attila Fehér
Journal: Plant J Date: 2005-09 Impact factor: 6.417

Plant hemoglobin participation in cell fate determination.

1. Different auxin response machineries control distinct cell fates in the early plant embryo.

2. Nitric oxide is required for, and promotes auxin-mediated activation of, cell division and embryogenic cell formation but does not influence cell cycle progression in alfalfa cell cultures.

3. Manipulation of hemoglobin expression affects Arabidopsis shoot organogenesis.

4. Differential expression patterns of non-symbiotic hemoglobins in sugar beet (Beta vulgaris ssp. vulgaris).

5. Hemoglobin expression affects ethylene production in maize cell cultures.

6. The AP2/ERF transcription factor WIND1 controls cell dedifferentiation in Arabidopsis.

7. A novel nonsymbiotic hemoglobin from oak: cellular and tissue specificity of gene expression.

8. The Arabidopsis SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE1 protein complex includes BRASSINOSTEROID-INSENSITIVE1.

9. Non-symbiotic haemoglobins-What's happening beyond nitric oxide scavenging?

10. Evolution, three-dimensional model and localization of truncated hemoglobin PttTrHb of hybrid aspen.

Review 1. Does Early Embryogenesis in Eudicots and Monocots Involve the Same Mechanism and Molecular Players?

2. Nitric oxide triggers a transient metabolic reprogramming in Arabidopsis.