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Hsiang-chin Liu†, Jörn Lämke†, Siou-ying Lin†, Meng-Ju Hung, Kuan-Ming Liu, Yee-yung Charng*, Isabel Bäurle* (2018) Distinct heat shock factors and chromatin modifications mediate the organ-autonomous transcriptional memory of heat stress. Plant J. https://doi.org/10.1111/tpj.13958
Plants can be primed by a stress cue to mount a faster or stronger activation of defense mechanisms upon a subsequent stress. A crucial component of such stress priming is the modified reactivation of genes upon recurring stress; however, the underlying mechanisms are poorly understood. Here, we report that dozens of Arabidopsis thaliana genes display transcriptional memory, i.e. stronger upregulation after a recurring heat stress, that lasts for at least three days. We define a set of transcription factors involved in this memory response and show that the transcriptional memory results in enhanced transcriptional activation within minutes after the onset of a heat stress cue. Further, we show that the transcriptional memory is active in all tissues. It may last for up to a week, and is associated with histone H3 lysine 4 hyper-methylation during this time. This transcriptional memory is cis-encoded, as we identify a promoter fragment that confers memory onto a heterologous gene. In summary, heat-induced transcriptional memory is a widespread and sustained response, and our study provides a framework for future mechanistic studies of somatic stress memory in higher plants. link

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本中心與東海大學生命科學研究中心教研合作協議簽約儀式

2018/06/11 ABRC Seminar 2018/05/08 ABRC Seminar The 11<sup>th</sup> Tsungming Tu Award Ceremony

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*2018/08/22 10:30 AM
Dr. Nathaniel Robert Street (Associate Professor, Department of Plant Physiology, Umeå University, Sweden)
Systems genetics and genomics insights into complex traits in aspen and Norway spruce
Auditorium A134, Agricultural Technology Building, Agricultural Biotechnology Research Center

*2018/09/03 10:30 AM
Dr. Sophie A. Lelièvre (Professor of Basic Medical Sciences with courtesy appointment in Nutrition Science; coleader, Drug Discovery & Molecular Sensing NCI-designated Purdue Center for Cancer Research; Scientific Director, 3D Cell Culture Core (3D3C) Facility, Birck Nanotechnology Center, Discovery Park, Purdue University, USA)
Environmental Epigenetics for the Primary Prevention of Cancer
Auditorium A134, Agricultural Technology Building, Agricultural Biotechnology Research Center

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Leong, S. J., Lu, W.-C. and Chiou, T.-J.* (2018) Phosphite-Mediated Suppression of Anthocyanin Accumulation Regulated by Mitochondrial ATP Synthesis and Sugar in Arabidopsis. Plant & Cell Physiology 59: 1158-1169

Ming-Jung Liu*, Koichi Sugimoto, Sahra Uygun, Nicholas Panchy, Michael S. Campbell, Mark Yandell, Gregg A. Howe and Shin-Han Shiu* (2018). Regulatory divergence in wound-responsive gene expression between domesticated and wild tomato. Plant Cell DOI: http://www.plantcell.org/content/early/2018/05/09/tpc.18.00194

Sakthivel Kailasam, Ying Wang, Jing-Chi Lo, Hsin-Fang Chang and Kuo-Chen Yeh* (2018) S-nitrosoglutathione works downstream of nitric oxide to mediate iron deficiency signaling in Arabidopsis The Plant Journal, DOI: 10.1111/tpj.13850

Lin W-Y, Lin Y-Y, Chiang S-F, Syu C, Hsieh L-C*, Chiou T-J* (2018) Evolution of microRNA827 targeting in the plant kingdom. New Phytologist 217: 1712-1725

Kuo, H.-F., Hsu, Y.-Y., Lin, W.-C., Chen, K.-Y., Munnik, T., Brearley, C. A.* and Chiou, T.-J.* (2018) Arabidopsis inositol phosphate kinases, IPK1 and ITPK1, constitute a metabolic pathway in maintaining phosphate homeostasis. The Plant J. (doi:10.1111/tpj.13974)

Despite the essential role of phosphate (Pi) in plant growth and development, how plants sense and signal the change of Pi supply to adjust its uptake and utilization is not yet well understood. ...more
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