TY  - JOUR
A1  - Schmidt, Romy
A1  - Schippers, Jos H. M.
A1  - Mieulet, Delphine
A1  - Obata, Toshihiro
A1  - Fernie, Alisdair R.
A1  - Guiderdoni, Emmanuel
A1  - Müller-Röber, Bernd
T1  - Multipass, a rice R2R3-type MYB transcription factor, regulates adaptive growth by integrating multiple hormonal pathways
JF  - The plant journal
N2  - Growth regulation is an important aspect of plant adaptation during environmental perturbations. Here, the role of MULTIPASS (OsMPS), an R2R3-type MYB transcription factor of rice, was explored. OsMPS is induced by salt stress and expressed in vegetative and reproductive tissues. Over-expression of OsMPS reduces growth under non-stress conditions, while knockdown plants display increased biomass. OsMPS expression is induced by abscisic acid and cytokinin, but is repressed by auxin, gibberellin and brassinolide. Growth retardation caused by OsMPS over-expression is partially restored by auxin application. Expression profiling revealed that OsMPS negatively regulates the expression of EXPANSIN (EXP) and cell-wall biosynthesis as well as phytohormone signaling genes. Furthermore, the expression of OsMPS-dependent genes is regulated by auxin, cytokinin and abscisic acid. Moreover, we show that OsMPS is a direct upstream regulator of OsEXPA4, OsEXPA8, OsEXPB2, OsEXPB3, OsEXPB6 and the endoglucanase genes OsGLU5 and OsGLU14. The multiple responses of OsMPS and its target genes to various hormones suggest an integrative function of OsMPS in the cross-talk between phytohormones and the environment to regulate adaptive growth.
KW  - development
KW  - expansin
KW  - transcription
KW  - Oryza sativa
KW  - hormone
KW  - abiotic stress
Y1  - 2013
U6  - https://doi.org/10.1111/tpj.12286
SN  - 0960-7412
SN  - 1365-313X
VL  - 76
IS  - 2
SP  - 258
EP  - 273
PB  - Wiley-Blackwell
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Moreno-Romero, Jordi
A1  - Probst, Aline V.
A1  - Trindade, Inês
A1  - Kalyanikrishna, 
A1  - Engelhorn, Julia
A1  - Farrona, Sara
T1  - Looking At the Past and Heading to the Future
BT  - Meeting Summary of the 6th European Workshop on Plant Chromatin 2019 in Cologne, Germany
JF  - Frontiers in Plant Science
N2  - In June 2019, more than a hundred plant researchers met in Cologne, Germany, for the 6th European Workshop on Plant Chromatin (EWPC). This conference brought together a highly dynamic community of researchers with the common aim to understand how chromatin organization controls gene expression, development, and plant responses to the environment. New evidence showing how epigenetic states are set, perpetuated, and inherited were presented, and novel data related to the three-dimensional organization of chromatin within the nucleus were discussed. At the level of the nucleosome, its composition by different histone variants and their specialized histone deposition complexes were addressed as well as the mechanisms involved in histone post-translational modifications and their role in gene expression. The keynote lecture on plant DNA methylation by Julie Law (SALK Institute) and the tribute session to Lars Hennig, honoring the memory of one of the founders of the EWPC who contributed to promote the plant chromatin and epigenetic field in Europe, added a very special note to this gathering. In this perspective article we summarize some of the most outstanding data and advances on plant chromatin research presented at this workshop.
KW  - EWPC2019
KW  - chromatin
KW  - epigenetics
KW  - transcription
KW  - nucleus
Y1  - 2020
U6  - https://doi.org/10.3389/fpls.2019.01795
SN  - 1664-462X
VL  - 10
IS  - 1795
SP  - 1
EP  - 12
PB  - Frontiers Media
CY  - Lausanne
ER  - 
TY  - JOUR
A1  - Bartholomäus, Alexander
A1  - Fedyunin, Ivan
A1  - Feist, Peter
A1  - Sin, Celine
A1  - Zhang, Gong
A1  - Valleriani, Angelo
A1  - Ignatova, Zoya
T1  - Bacteria differently regulate mRNA abundance to specifically respond to various stresses
JF  - Geology
N2  - Environmental stress is detrimental to cell viability and requires an adequate reprogramming of cellular activities to maximize cell survival. We present a global analysis of the response of Escherichia coli to acute heat and osmotic stress. We combine deep sequencing of total mRNA and ribosome-protected fragments to provide a genome-wide map of the stress response at transcriptional and translational levels. For each type of stress, we observe a unique subset of genes that shape the stress-specific response. Upon temperature upshift, mRNAs with reduced folding stability up-and downstream of the start codon, and thus with more accessible initiation regions, are translationally favoured. Conversely, osmotic upshift causes a global reduction of highly translated transcripts with high copy numbers, allowing reallocation of translation resources to not degraded and newly synthesized mRNAs.
KW  - transcription
KW  - translation
KW  - deep sequencing
KW  - Escherichia coli
KW  - copy numbers
Y1  - 2016
U6  - https://doi.org/10.1098/rsta.2015.0069
SN  - 1364-503X
SN  - 1471-2962
VL  - 374
PB  - Royal Society
CY  - London
ER  -