TY - JOUR
T1 - Thermopriming Triggers Splicing Memory in Arabidopsis
AU - Ling, Yu
AU - Serano, Natalia Lorena Gorron
AU - Gao, Ge
AU - Atia, Mohamed
AU - Mokhtar, Morad
AU - Woo, Yong
AU - Bazin, Jeremie
AU - Veluchamy, Alaguraj
AU - Benhamed, Moussa
AU - Crespi, Martin
AU - Gehring, Christoph A
AU - Reddy, A S N
AU - Mahfouz, Magdy M.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We would like to thank members of the Bioscience core facility of KAUST for their help with RNA-sequencing. We would like to thank members of the laboratory for genome engineering for their discussion and technical support. This study was supported by King Abdullah University of Science and Technology (KAUST).
PY - 2018/2/27
Y1 - 2018/2/27
N2 - Abiotic and biotic stresses limit crop productivity. Exposure to a non-lethal stress, referred to as priming, can allow plants to survive subsequent and otherwise lethal conditions; the priming effect persists even after a prolonged stress-free period. However, the molecular mechanisms underlying priming are not fully understood. Here, we investigated the molecular basis of heat shock memory and the role of priming in Arabidopsisthaliana. Comprehensive analysis of transcriptome-wide changes in gene expression and alternative splicing in primed and non-primed plants revealed that alternative splicing functions as a novel component of heat shock memory. We show that priming of plants with a non-lethal heat stress results in de-repression of splicing after a second exposure to heat stress. By contrast, non-primed plants showed significant repression of splicing. These observations link ‘splicing memory’ to the ability of plants to survive subsequent and otherwise lethal heat stress. This newly discovered priming-induced splicing memory may represent a general feature of heat stress responses in plants and other organisms as many of the key components of heat shock responses are conserved among eukaryotes. Furthermore, this finding could facilitate the development of novel approaches to improve plant survival under extreme heat stress.
AB - Abiotic and biotic stresses limit crop productivity. Exposure to a non-lethal stress, referred to as priming, can allow plants to survive subsequent and otherwise lethal conditions; the priming effect persists even after a prolonged stress-free period. However, the molecular mechanisms underlying priming are not fully understood. Here, we investigated the molecular basis of heat shock memory and the role of priming in Arabidopsisthaliana. Comprehensive analysis of transcriptome-wide changes in gene expression and alternative splicing in primed and non-primed plants revealed that alternative splicing functions as a novel component of heat shock memory. We show that priming of plants with a non-lethal heat stress results in de-repression of splicing after a second exposure to heat stress. By contrast, non-primed plants showed significant repression of splicing. These observations link ‘splicing memory’ to the ability of plants to survive subsequent and otherwise lethal heat stress. This newly discovered priming-induced splicing memory may represent a general feature of heat stress responses in plants and other organisms as many of the key components of heat shock responses are conserved among eukaryotes. Furthermore, this finding could facilitate the development of novel approaches to improve plant survival under extreme heat stress.
UR - http://hdl.handle.net/10754/627209
UR - https://academic.oup.com/jxb/advance-article/doi/10.1093/jxb/ery062/4883206
UR - http://www.scopus.com/inward/record.url?scp=85046269200&partnerID=8YFLogxK
U2 - 10.1093/jxb/ery062
DO - 10.1093/jxb/ery062
M3 - Article
C2 - 29474581
SN - 0022-0957
VL - 69
SP - 2659
EP - 2675
JO - Journal of Experimental Botany
JF - Journal of Experimental Botany
IS - 10
ER -