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Phenotyping Tomato Root Developmental Plasticity in Response to Salinity in Soil Rhizotrons

Plant Phenomics 2021年第1期3卷 14-27页

作者： Jacinto Gandullo Safarina Ahmad Essam Darwish Rumyana Karlova christa testerink Section of Plant Physiology and Plant Cell Biology Swammerdam Institute for Life ScienceUniversity of AmsterdamScience Park 9041098 XH AmsterdamNetherlands Departamento de Biología Vegetal y Ecología Área de Fisiología VegetalFacultad de BiologíaUniversidad de SevillaSevilleSpain Plant Physiology Section Agricultural Botany DepartmentFaculty of AgricultureCairo University12613 GizaEgypt Laboratory of Plant Physiology Plant Sciences GroupWageningen University and Research6708PB WageningenNetherlands

Plants have developed multiple strategies to respond to salt *** order to identify new traits related to salt tolerance,with potential breeding application,the research focus has recently been shifted to include root system architecture(RSA)and root *** a simple but effective root phenotyping system containing soil(rhizotrons),RSA of several tomato cultivars and their response to salinity was *** observed a high level of root plasticity of tomato seedlings under salt *** general root architecture was substantially modified in response to salt,especially with respect to position of the lateral roots in the *** the soil surface,where salt accumulates,lateral root emergence was most strongly *** the set of tomato cultivars,H1015 was the most tolerant to salinity in both developmental stages studied.A significant correlation between several root traits and aboveground growth parameters was observed,highlighting a possible role for regulation of both ion content and root architecture in salt stress resilience.

关键词： soil cultivar breeding

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SCOOP10 and SCOOP12 peptides act through MIK2 receptor-like kinase to antagonistically regulate Arabidopsis leaf senescence

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Molecular Plant 2024年第12期17卷 1805-1819页

作者： Zhenbiao Zhang Nora Gigli-Bisceglia Wei Li Saijie Li Jie Wang Junfeng Liu christa testerink Yongfeng Guo Tobacco Research Institute Chinese Academy of Agricultural SciencesQingdaoChina Graduate School of Chinese Academy of Agricultural Sciences BeijingChina Laboratory of Plant Physiology Wageningen University&ResearchWageningenthe Netherlands Plant Stress Resilience Institute of Environmental BiologyUtrecht UniversityUtrechtthe Netherlands State Key Laboratory of Maize Bio-breeding Ministry of Agriculture Key Laboratory for Crop Pest Monitoring and Green ControlJoint International Research Laboratory of Crop Molecular BreedingChina Agricultural UniversityBeijingChina

Leaf senescence plays a critical role in a plant’s overall reproductive success due to its involvement in nutrient remobilization and ***,our current understanding of the molecular mechanisms controlling leaf senescence remains *** this study,we show that the receptor-like kinase MALE DISCOVERER 1-INTERACTING RECEPTOR-LIKE KINASE 2(MIK2)functions as a negative regulator of leaf *** found that the SERINE-RICH ENDOGENOUS PEPTIDE 12,previously known to physically interact with MIK2,competes with SCOOP10 to regulate MIK2-dependent leaf *** observed that increased expression of SCOOP10 or the application of exogenous SCOOP10 peptides accelerated leaf senescence in a MIK2-dependent ***,SCOOP12 acted as a suppressor of MIK2-dependent leaf senescence *** assays showed that SCOOP12 enhances while SCOOP10 diminishes MIK2 ***,the SCOOP12-MIK2 module might function antagonistically on SCOOP10-MIK2 signaling at late senescing stages,allowing for fine-tuned modulation of the leaf senescence *** study sheds light on the complex mechanisms underlying leaf senescence and provides valuable insights into the interplay between receptors,peptides,and the regulation of plant senescence.

关键词： leaf senescence MIK2 SCOOP10 SCOOP12 small signaling peptides receptor-like kinase

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