Entries by Plant Cell

Improving cotton with strigolactones

Zhang, Tian, et al. examine strigolactone signaling in cotton fiber development https://doi.org/10.1093/plcell/koac270  Guanghui Xiao and Yuzhou Zhang College of Life Sciences, Shaanxi Normal University, Xi’an, China College of Life Sciences, Northwest A&F University, Shaanxi, Yangling, China  Background: The strigolactone plant hormones regulate plant architecture, including shoot branches and adventurous roots. However, the role of strigolactones […]

AIG2 proteins fine tune plant chemical defense systems

Wang, Yang, et al. explore the connection between tryptophan-derived metabolites and salicylic acid defense responses. https://doi.org/10.1093/plcell/koac255  Zhixue Wang, Leiyun Yang, Jian Hua Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, USA  Background: Plants synthesize diverse, sometimes species-specific, defensive molecules, including tryptophan-derived secondary metabolites (TDSMs) and/or salicylic acid (SA) to defend […]

A plant unique ESCRT component functions in peroxisome-mediated lipid droplet turnover

Huang et al. demonstrate a novel role–and the underlying mechanism–for FREE1 in regulating LD turnover. Plant Cell. https://doi.org/10.1093/plcell/koac195 Background: Lipid droplets (LDs) are major reservoirs providing energy and lipids for seedling establishment. In vascular  plants, the peroxisome-localized lipase SDP1 has been shown to play a major role in modulating LD metabolism, while the retromer and […]

SlCLV3-WUS regulates tomato flower abscission

Cheng et al. show that Low-light conditions stimulate the SlCLV3-SlWUS signaling module and regulate phytohormone homeostasis to induce abscission https://doi.org/10.1093/plcell/koac254 Lina Cheng, College of Horticulture, Shenyang Agricultural University, Shenyang, Liaoning 110866, People’s Republic of China. Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, Liaoning Province, China. Tao Xu, College of Horticulture, Shenyang Agricultural […]

Type one protein phosphatase regulates fixed-carbon starvation-induced autophagy in Arabidopsis

Wang et al. demonstrate that TOPP regulates autophagy through ATG1a-ATG13a complex. The Plant Cell (2022). https://doi.org/10.1093/plcell/koac251 By Qiuling Wang, Qianqian Qin, Meifei Su, Na li, Jing Zhang, Yang Liu, Longfeng Yan, and Suiwen Hou Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, School of Life Sciences, Lanzhou University, Lanzhou 730000, People’s Republic […]

Utilization of photoassimilates for growth and development requires the Arabidopsis copper deficiency response regulator SPL7

By Anna Schulten and Ute Krämer, Department of Molecular Genetics and Physiology of Plants, Ruhr University Bochum, Germany  Schulten and colleagues explore the reasons behind the growth defects seen in the spl7 mutants, and discover that they cannot utilize the plentiful sugars they accumulate. Background: To accomplish a multitude of biochemical reactions, life takes advantage […]

A small nucleolar RNA cluster that directs ribosomal RNA maturation

Cao et al. found that SnoR28.1 (a conserved box C/D snoRNA cluster) regulates plant growth and development by directing rRNA maturation. The Plant Cell (2022).  https://doi.org/10.1093/plcell/koac265 By Yuxin Cao and Weiqiang Qian Background: Small nucleolar RNAs (snoRNAs) are a class of abundantly expressed noncoding RNAs that guide modifications of ribosomal RNAs (rRNAs), transfer RNAs (tRNAs), and small nuclear […]

OsPIL15 Regulates Stomatal Aperture by Coordinating Red Light and Abscisic Acid Signaling

Li et al. discover that OsPIL15 interacting with OsHHO3 forms the OsPIL15-OsHHO3 transcription factor complex to promote the binding of OsPIL15 to the promoter regions of OsABI5 and then reduce stomatal aperture through the ABA signaling pathway https://doi.org/10.1093/plcell/koac244 By Qian Li and Luyan Zhou Background: Plants typically respond to environmental changes by changing the width […]