Two genes that encode ribosomal‐protein S6 kinase homologs are induced by cold or salinity stress in <i>Arabidopsis thaliana</i>

Mizoguchi, Tsuyoshi; Hayashida, Nobuaki; Yamaguchi-Shinozaki, Kazuko; Kamada, Hiroshi; Shinozaki, Kazuo

doi:10.1016/0014-5793(94)01423-x

Cited by 80 publications

(54 citation statements)

References 35 publications

(65 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Among these, the expression of the zinc finger, 7 of the MYB and 1 of the MADS were up-regulated. Protein-serine/threonine kinases are one of the key kinases in ABA signal transduction pathway, regulating the activity of some protein by the phosphorylation (Mizoguchi et al, 1995;Brock et al, 2010;Roskoski, 2010). The up-regulated expression of the protein-serine/threonine kinases in low temperature stress reveals that ABA signal transduction pathway participates in the low temperature stress at seedling establishment stage.…”

Section: Discussionmentioning

confidence: 99%

Identifying Differentially Expressed Genes Associated with Tolerance against Low Temperature Stress in Brassica napus through Transcriptome Analysis

Xian¹,

Luo²,

Khan³

et al. 2017

IJAB

View full text Add to dashboard Cite

To cite this paper: Xian, M., T. Luo, M.N. Khan, L. Hu and Z. Xu, 2017. Identifying differentially expressed genes associated with tolerance against low temperature stress in Brassica napus through transcriptome analysis. AbstractUnder direct-seeding method of sowing, seedling survival is adversely affected due to low temperature. The purpose of this study was to understand the morphological, physiological and molecular response of rapeseed resistance to low temperature stress at seedling establishment. Two varieties Qinyou No.7 (resistant biotype) and Fengyou 730 (sensitive biotype) were used for morphological and physiological experiments under low temperature stress and the resistant variety was used for transcriptome analysis based on the Illumina HiSeq 2000 platform. Results showed resistant variety initiated osmotic regulation system firstly and then triggered the antioxidant enzyme system when exposed to low temperature stress for long duration. The MDA content firstly tended to increase and then decreased in resistant variety, but it continued to increase in sensitive variety. Through transcriptome analysis of Qinyou No. 7 under low temperature for 0 h, 24 h, 48 h and 96 h, 2254 differentially expressed unigenes clustering in 7 expression patterns were participated in low temperature stress. Proteinserine/threonine kinases, myo-inositol-1-phosphate synthases and calmodulins, as the members of ABA and IP3/Ca2+ signal transduction pathway, played an important role in the low temperature stress. Different expressed genes dataset provides useful candidate genes for functional analysis of rapeseed resistance to low temperature.

show abstract

Section: Discussionmentioning

confidence: 99%

Identifying Differentially Expressed Genes Associated with Tolerance against Low Temperature Stress in Brassica napus through Transcriptome Analysis

Xian¹,

Luo²,

Khan³

et al. 2017

IJAB

View full text Add to dashboard Cite

show abstract

“…2,10,35,37,40 With the exception of RPS6K family members, most of the metazoan kinases phosphorylating H3S10 do not appear to be conserved in the plant lineage. 16 Interestingly, environmental stresses enhance the activity of two A. thaliana RPS6K homologs 41 and, in both tobacco and A. thaliana cell lines, H3S10 phosphorylation has been observed to increase in response to high salinity or cold treatment. 8,42 In interphase nuclei of A. thaliana plants grown under normal conditions, H3S10ph also appears to be associated with heterochromatin.…”

Section: Histone H3 Phosphorylation During Mitosismentioning

confidence: 99%

Histone H3 phosphorylation: Universal code or lineage specific dialects?

Cerutti¹,

Casas-Mollano²

2009

Epigenetics

View full text Add to dashboard Cite

Post-translational modifications of histones modulate the functional landscape of chromatin and impinge on many DNA-mediated processes. Phosphorylation of histone H3 plays a role in the regulation of gene expression and in chromosome condensation/ segregation. Certain evolutionarily conserved residues on histone H3, namely Thr3, Ser10, Thr11 and Ser28, are phosphorylated during interphase or mitosis in both metazoa and plants. However, many of the kinases involved in these events appear to have evolved independently in different lineages. Likewise, the mechanistic function of specific phosphorylated amino acids, although poorly understood, also seems to differ among eukaryotes. Moreover, some modifications, such as phosphorylation of histone H3 Ser10, appear to have both a positive and a negative connotation and only become meaningful in combination with other histone marks within a particular chromatin context. Thus, a detailed understanding of the influence of histone H3 phosphorylation on biological processes may require learning organismal dialects of the histone code.

show abstract

“…Arabidopsis harbors two closely related homologs of mammalian S6Ks: AtS6K1 and AtS6K2 (Zhang et al, 1994;Mizoguchi et al, 1995). Mutational analysis suggests that Arabidopsis S6K single mutants show different expression patterns and stress sensitivity (Henriques et al, 2010).…”

Section: S6k Activation By Torc1mentioning

confidence: 99%

Recent Discoveries on the Role of TOR (Target of Rapamycin) Signaling in Translation in Plants

Schepetilnikov

Ryabova

2017

Plant Physiol.

View full text Add to dashboard Cite

Protein synthesis is an intricate, energy-demanding, and tightly controlled process that plays a fundamental role in cell growth, proliferation, and differentiation. The target of rapamycin (TOR) protein kinase integrates stress-, nutrient-, and energy-related signals to optimize protein synthesis outputs. In mammals, TOR is a main controller of capped mRNA translation; how TOR participates in translation initiation in plants is unclear, but active TOR is required for regulation of translation of mRNA with 59-untranslated region (59-UTR) upstream open reading frames (uORFs)-known translation regulatory elements in eukaryotes. Recent data implicates diverse signals such as stress, hormones, and metabolites in regulation of TOR signal transduction pathways and, thus, in response to environmental stress. Here, we review current knowledge of plant TOR complex composition and activation, and its function in translation, compiling data on downstream processes that are under stringent control of TOR in mammals but not yet investigated in plants.Plants have evolved various adaptation mechanisms to ensure their optimal growth, with plant development and behavior being strongly responsive to various external and internal stimuli. By monitoring their environment, plants trigger signal transduction cascades in order to regulate downstream cellular processes, mainly via protein synthesis-a major energy-consuming process (Buttgereit and Brand, 1995). The TOR protein kinase integrates extracellular signals (hormones, biotic and abiotic stresses, growth factors) together with intracellular nutrient availability and energy status to control protein synthesis and other anabolic processes if conditions are favorable, and represses catabolic processes such as autophagy (Albert and Hall, 2015). The past 10 years has boosted research on plant TOR complex composition, highlighted TOR upstream signals and downstream targets, and revealed an interplay between TOR signaling and hormonal, stress, and other pathways in photosynthetic organisms. We are beginning to understand how TOR is activated, and how it controls many cellular processes, such as transcription, translation, and autophagy. Here, we give an overview of recent results on the role of TOR in plant translation control and draw the reader's attention to future questions to address. In plants, inactivation of TOR correlates with a decrease in total polysomal levels (Deprost et al., 2007;Schepetilnikov et al., 2011Schepetilnikov et al., , 2013, strongly suggesting a role for TOR in plant translation. Although a role for TOR in global translation in plants has been documented, the players and mechanisms used to influence different steps of translation initiation -the step most controlled by TOR in mammals-are only starting to emerge. Here, we summarize the current state of knowledge of specific plant translation initiation mechanisms that are controlled by 59-UTR elements of mRNAs and discuss regulation of these mechanisms by TOR/S6 kinase 1 (S6K1) signaling. Examples where TOR re...

show abstract

Two genes that encode ribosomal‐protein S6 kinase homologs are induced by cold or salinity stress in Arabidopsis thaliana

Cited by 80 publications

References 35 publications

Identifying Differentially Expressed Genes Associated with Tolerance against Low Temperature Stress in Brassica napus through Transcriptome Analysis

Identifying Differentially Expressed Genes Associated with Tolerance against Low Temperature Stress in Brassica napus through Transcriptome Analysis

Histone H3 phosphorylation: Universal code or lineage specific dialects?

Recent Discoveries on the Role of TOR (Target of Rapamycin) Signaling in Translation in Plants

Contact Info

Product

Resources

About