Protocols in Current Issue
    Visualization and Quantification of Cell-to-cell Movement of Proteins in Nicotiana benthamiana
    Authors:  Mila C Blekemolen, Mariliis Tark-Dame and Frank L.W Takken, date: 12/20/2018, view: 1194, Q&A: 0
    [Abstract] Cell-to-cell movement of proteins through plasmodesmata is a widely-established mechanism for intercellular signaling in plants. Current techniques to study intercellular protein translocation rely on single-cell transformation using particle bombardment or transgenic lines expressing photo-inducible fluorophores. The method presented here allows ...
    Examining Autophagy in Plant by Transmission Electron Microscopy (TEM)
    Authors:  Xiyin Zheng, Chenguang Zhao and Yule Liu, date: 10/20/2018, view: 1139, Q&A: 0
    [Abstract] In plants, macroautophagy, here referred as autophagy, is a degradation pathway during which the double-membrane structure named autophagosome engulfs the cargo and then fuses with vacuole for material recycling.

    To investigate the process of autophagy, transmission electron microscopy (TEM) was used to monitor the ultrastructure of ...
    Real-time PCR Analysis of PAMP-induced Marker Gene Expression in Nicotiana benthamiana
    Authors:  Fan Liu, Yuanpeng Xu, Yan Wang and Yuanchao Wang, date: 10/05/2018, view: 1460, Q&A: 0
    [Abstract] Perception of pathogen-associated molecular patterns (PAMPs) often triggers various innate immune responses in plants. The transcriptional changes of defense-related genes are often used as a marker to assay PAMP-triggered plant immune response. Here we described a protocol to monitor the relative expression level of marker genes in Nicotiana ...
    Trimolecular Fluorescence Complementation (TriFC) Assay for Direct Visualization of RNA-Protein Interaction in planta
    Authors:  Jun Sung Seo and Nam-Hai Chua, date: 10/20/2017, view: 4562, Q&A: 0
    [Abstract] RNA-Protein interactions play important roles in various eukaryotic biological processes. Molecular imaging of subcellular localization of RNA/protein complexes in plants is critical for understanding these interactions. However, methods to image RNA-Protein interactions in living plants have not yet been developed until now. Recently, we have ...
    Ubiquitin Proteasome Activity Measurement in Total Plant Extracts
    Authors:  Suayib Üstün and Frederik Börnke, date: 09/05/2017, view: 3751, Q&A: 0
    [Abstract] The fine-tuned balance of protein level, conformation and location within the cell is vital for the dynamic changes required for a cell to respond to a given stimulus. This requires the regulated turnover of damaged or short-lived proteins through the ubiquitin proteasome system (UPS). Thus, the protease activity of the proteasome is adjusted to ...
    Infection of Nicotiana benthamiana Plants with Potato Virus X (PVX)
    [Abstract] Potato Virus X (PVX) is the type member of Potexvirus genus, a group of plant viruses with a positive-strand RNA genome (~6.4 kb). PVX is able to establish compatible infections in Nicotiana benthamiana, a commonly used host in plant virology, leading to mild symptoms, such as chlorotic mosaic and mottling. PVX has been ...
    Simple Methods for Screening and Statistical Analysis of Leaf Epidermal Cells in Dicotyledonous Plants
    Authors:  Jian-Jun Tao, Shou-Yi Chen and Jin-Song Zhang, date: 09/05/2016, view: 5907, Q&A: 0
    [Abstract] Leaf epidermal cell size and number are positively correlated to leaf area. Stomata are specialized epidermal cells vital for gas exchange and water transpiration. So, observation and statistical analysis of the leaf epidermal cells are valuable for the study of leaf development and response to environmental stimulus. The classical method is using ...
    Bioassays to Investigate the Effects of Insect Oviposition on a Plant’s Resistance to Herbivores
    Authors:  Michele Bandoly and Anke Steppuhn, date: 06/05/2016, view: 6979, Q&A: 0
    [Abstract] Plants respond to herbivory with diverse defence responses (Schoonhoven et al., 2005). Many herbivorous insects deposit their eggs on their host plants before their larvae start to feed. Thus, plants could use insect eggs as a signal to increase their resistance to herbivores. Here, we report experimental procedures to explore whether and ...
    Shoot Regenerative Capacity Assays in Arabidopsis and Tobacco
    Authors:  Tian-Qi Zhang and Jia-Wei Wang, date: 03/05/2016, view: 5789, Q&A: 0
    [Abstract] Plant regeneration refers to a process through which an explant is differentiated to a whole plant under certain conditions. It has been shown that two plant hormones, auxin and cytokinin, play critical roles within this process (Duclercq et al., 2011). Cytokinin induces shoot regeneration, whereas auxin promotes root production. In ...
    Virus-based MicroRNA Silencing
    Authors:  Jinping Zhao and Yule Liu, date: 01/20/2016, view: 5767, Q&A: 0
    [Abstract] Virus-based microRNA silencing (VbMS) is a viable and prompt method to screen and characterize the function of microRNAs (miRNAs) in plants. The Tobacco rattle virus (TRV)-based VbMS method was originally developed by the Yule Liu's group (Sha et al., 2014) using miRNA target mimic (TM) methodology. Here, we describe the ...

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