Profiling of the Early Nitrogen Stress Response in the Diatom Phaeodactylum tricornutum Reveals a Novel Family of RING-Domain Transcription Factors

被引：38

作者：

Matthijs, Michiel ^{[1
,3
,5
,6
]}

Fabris, Michele ^{[1
,3
,5
,7
]}

Broos, Stefan ^{[2
,4
]}

Vyverman, Wim ^{[5
]}

Goossens, Alain ^{[1
,3
]}

机构：

[1] VIB, Dept Plant Syst Biol, B-9052 Ghent, Belgium

[2] VIB, Inflammat Res Ctr, B-9052 Ghent, Belgium

[3] Univ Ghent, Dept Plant Biotechnol & Bioinformat, B-9052 Ghent, Belgium

[4] Univ Ghent, Dept Biomed Mol Biol, B-9052 Ghent, Belgium

[5] Univ Ghent, Dept Biol, Lab Protistol & Aquat Ecol, B-9000 Ghent, Belgium

[6] Algenuity, Eden Lab, Broadmead Rd, Bedford MK43 9ND, England

[7] Univ Technol Sydney, Plant Funct Biol & Climate Change Cluster, 15 Broadway, Ultimo Sydney, NSW 2007, Australia

来源：

PLANT PHYSIOLOGY | 2016年 / 170卷 / 01期

关键词：

LIPID-ACCUMULATION; GENOME; EVOLUTION; MARINE; METABOLISM; ARABIDOPSIS; LIMITATION; PROTEINS; PATHWAY; ALGAE;

D O I：

10.1104/pp.15.01300

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Diatoms often inhabit highly variable habitats where they are confronted with a wide variety of stresses, frequently including starvation of nutrients such as nitrogen. In this study, the transcriptome of the model diatom Phaeodactylum tricornutum was profiled during the onset of nitrogen starvation by RNA sequencing, and overrepresented motifs were determined in promoters of genes that were early and strongly up-regulated during the nitrogen stress response. One of these motifs could be bound by a nitrogen starvation-inducible RING-domain protein termed RING-GAF-Gln-containing protein (RGQ1), which was shown to act as a transcription factor and belongs to a previously uncharacterized family that is conserved in heterokont algae.

引用

页码：489 / 498

页数：10

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