UBIQUITIN-SPECIFIC PROTEASE (UBP14) interacts with HY5 to promote photomorphogenesis under dark-to-light conditions
Plant Science Research WeeklyELONGATED HYPOCOTYL5 (HY5) is a transcription factor that regulates about one-third of Arabidopsis genes, affecting growth and development of seedlings through light and hormone signaling. UBIQUITIN-SPECIFIC PROTEASE (UBP14) is a deubiquitinating enzyme that removes ubiquitin from substrate proteins.…
TaGW2 regulates drought tolerance in wheat
The Plant Cell: In a NutshellLi, Zhang, Liu et al. demonstrate that the E3 ligase TaGW2 enhances wheat drought tolerance by promoting the degradation of the transcription factor TaARR12.
https://doi.org/10.1093/plcell/koad307
By Shumin Li, Zhensheng Kang and Hude Mao
State Key Laboratory of Crop Stress Biology for Arid…
An inducible protein degradation system for rapid depletion of target proteins
Plant Science Research WeeklyTargeting a given protein for degradation at a specific time can be very useful when investigating its function in the cellular context. In this paper, Huang et al. present an inducible protein degradation system tailored for plants, named E3-DART. The system is based on the specific interaction between…
The E3 ubiquitin ligases PUB25 and PUB26 dynamically regulate cold stress responses in plants
The Plant Cell: In a NutshellWang et al. discovered how plants dynamically respond to cold stress mediated by the E3 ligases PUB25 and PUB26.
https://doi.org/10.1093/plcell/koad159
By Xi Wang1, Xiaoyan Zhang1, Chunpeng Song3, Zhizhong Gong1,2, Shuhua Yang1 and Yanglin Ding1
1State Key Laboratory of Plant Environmental…
A new regulatory module controls chlorophyll catabolism in bananas under high temperature
The Plant Cell: In a NutshellWei et al. discover a new transcriptional and post-translational regulatory module, MaBAH1-MaMYB60, that regulates chlorophyll catabolism and green ripening in bananas under high temperature.
By Wei Wei, Yingying Yang, Prakash Lakshmanan, Jianfei Kuang, Wangjin Lu, Xuequn Pang, Jianye Chen and Wei…
A ubiquitinated SNARE protein functions in nutrient stress responses
The Plant Cell: In a NutshellHasegawa, Reyes et al. discover a link between the ubiquitination of a key membrane trafficking regulator and carbon/nitrogen nutrient stress.
Background: Ubiquitination is a post-translational modification that functions in numerous cellular processes by serving as a molecular signal, such as protein…
Degradation of a Negative Immune Regulator Enhances Immune Responses
The Plant Cell: In a NutshellLiu et al. investigate regulation of innate immunity in Arabidopsis.
Plant Cell (2021) https://doi.org/10.1093/plcell/koab242
Xiaotong Liu, Yuanyuan Zhou and Dongping Lu
State Key Laboratory of Plant Genomics, Center for Agricultural Resources Research, Institute of Genetics and Developmental…
IRON MAN sequesters BTS to activate iron deficiency response (PNAS)
Plant Science Research WeeklyPlants need to maintain an optimum level of iron (Fe) for normal growth and development. Many Fe-responsive molecular players have been identified in Arabidopsis, including the IRON MAN (IMA) peptides. These peptides are induced by Fe deficiency, but their role in maintaining Fe homeostasis remains poorly…
Plantae Presents: Sophia Stone and Sjon Hartman
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Plantae Presents: Sophia Stone and Sjon Hartman
Recorded April 14
Sophia Stone: The ubiquitin-proteasome system at the crossroads of abiotic and biotic stress tolerance
Sophia Stone earned her PhD at York University, Canada, and completed an HFSP long-term fellowship at the University…