Genetic reprogramming during immune activation: Decompressing the genetic information encoded in alternative transcription start sites
Thieffry, López-Márquez, et al. explore the use of alternative transcriptional start sites during immune responses. https://doi.org/10.1093/plcell/koac108
Background:
Upon sensing an attempted infection, plants change from growth to defense by reshaping gene activity. However, there is not always…
Regulation of SK11/12 transcription guides carbon flow in seeds
By Chengxiang Li and Hao Yu
National University of Singapore
Background: Maternal carbon source supports seed development and is eventually transformed into seed reserves, such as storage oil in the filial embryo and protective compounds in the maternal seed coat. During seed development of Arabidopsis…
AHA2 is involved in ABA-induced stomatal closure
Author et al. explore the role of plasma membrane H +-ATPases in ABA-induced stomatal closure.
https://doi.org/10.1093/plcell/koac106
By Zhizhong Gong1, 2 and Dan Pei1
1State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing,…
Sweet revenge: a fungal oligosaccharide takes on plant defense responses
Chandrasekar, Wanke, Wawra and co-workers discover how fungal cell surface polysaccharides assist in evading hostile plant immune responses.
https://doi.org/10.1093/plcell/koac114
By Alan Wanke1 and Pia Saake2 Alga Zuccaro2
1 Sainsbury Laboratory, University of Cambridge, Cambridge, United…
OUT OF THE BLUE and into the leaf veins
Grunwald et al. explore how blue light regulates leaf water balance https://doi.org/10.1093/plcell/koac089
By Y. Grunwald, S. Gosa, T. Torne Srivastava, M. Moshelion and N. Moran.
The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture,…
Two ABA-responsive transcription factors reset the requirement for vernalization by re-activating FLOWERING LOCUS C in embryos
Xu et al. identify two transcription factors that activate FLOWERING LOCUS C during embryogenesis, thus re-setting the requirement for vernalization. https://doi.org/10.1093/plcell/koac077
By Guokai Xu, Zeng Tao and Yuehui He
Peking University Institute of Advanced Agricultural Sciences
Peking-Tsinghua…
Mitochondrial ROS promise broad-spectrum disease resistance
Yang et al. identify a connection between a mitochondrial RNA-processing factor and plant disease resistance. https://doi.org/10.1093/plcell/koac082
Yang Yang and Weixing Shan
State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling,…
A new link between light and brassinosteroid signaling
Cao et al. demonstrate that the photomorphogenic repressors BBX28 and BBX29 enhance brassinosteroid signaling to promote hypocotyl elongation and cotyledon closure.
By Jing Cao and Fang Lin
Background: Light signals and brassinosteroids (BRs) are external stimuli and internal cues, respectively,…
A spliceophilin helps Arabidopsis adapt to heat stress
Jo et al. uncover the role of a spliceosome component in removing retained introns in Arabidopsis in response to heat stress https://doi.org/10.1093/plcell/koac084
Background: Alternative splicing plays a key role in abiotic stress responses in plants, especially responses to heat stress. The spliceosome…