Cell Biology

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    Protocols in Current Issue
    Quantification of Cutaneous Ionocytes in Small Aquatic Organisms
    Authors:  Garfield T. Kwan, Shane H. Finnerty, Nicholas C. Wegner and Martin Tresguerres, date: 05/05/2019, view: 345, Q&A: 0
    [Abstract] Aquatic organisms have specialized cells called ionocytes that regulate the ionic composition, osmolarity, and acid/base status of internal fluids. In small aquatic organisms such as fishes in their early life stages, ionocytes are typically found on the cutaneous surface and their abundance can change to help cope with various metabolic and ...
    Electron Microscopic Detection of Proteins and Protein Complexes in Mammalian Cells Using APEX-tagged, Conditionally Stable Nanobodies
    Authors:  Thomas E. Hall, James Rae, Nicholas Ariotti and Robert G. Parton, date: 11/20/2018, view: 1148, Q&A: 0
    [Abstract] The recent development of 3D electron microscopic techniques for cells and tissues has necessitated the development of new methods for the detection of proteins and protein-complexes in situ. The development of new genetic tags, such as the ascorbate peroxidase, APEX, for electron microscopic detection of tagged proteins has expanded the ...
    Image-Based Analysis of Mitochondrial Area and Counting from Adult Mouse Dopaminergic Neurites
    Authors:  Nadee Nissanka, Carlos T Moraes and Mlena Pinto, date: 08/20/2018, view: 1527, Q&A: 0
    [Abstract] Mitochondria form dynamic cytoplasmic networks which undergo morphological changes in order to adapt to cellular stresses and signals. These changes can include alterations in size and number within a given cell. Analysis of the whole network can be a useful metric to assess overall mitochondrial health, particularly in neurons, which are highly ...
    A Streamlined Method for the Preparation of Gelatin Embedded Brains and Simplified Organization of Sections for Serial Reconstructions
    Authors:  Andrew W. Liu, Sho Aoki and Jeffery R. Wickens, date: 11/20/2017, view: 5316, Q&A: 0
    [Abstract] Gelatin embedding of whole brains for sectioning is a critical procedure used in neuroscience to ensure all morphological and spatial details are preserved intact. Here, we describe an inexpensive, reproducible and efficient means to embed post-fixed brains ready for sectioning in gelatin within a week’s time. The sections obtained are ...
    Histochemical Preparations to Depict the Structure of Cauliflower Leaf Hydathodes
    Authors:  Aude Cerutti, Marie-Christine Auriac, Laurent D. Noël and Alain Jauneau, date: 10/20/2017, view: 3709, Q&A: 0
    [Abstract] Hydathodes are plant organs present on leaf margins of a wide range of vascular plants and are the sites of guttation. Both anatomy and physiology of hydathodes are poorly documented. We have recently reported on the anatomy of cauliflower and Arabidopsis thaliana hydathodes and on their infection by the vascular pathogenic bacterium ...
    Using Silicon Polymer Impression Technique and Scanning Electron Microscopy to Measure Stomatal Aperture, Morphology, and Density
    Authors:  Hui-Chen Wu, Ya-Chen Huang, Chia-Hung Liu and Tsung-Luo Jinn, date: 08/20/2017, view: 4193, Q&A: 0
    [Abstract] The number of stomata on leaves can be affected by intrinsic development programming and various environmental factors, in addition the control of stomatal apertures is extremely important for the plant stress response. In response to elevated temperatures, transpiration occurs through the stomatal apertures, allowing the leaf to cool through ...
    Resin-embedded Thin-section Immunohistochemistry Coupled with Triple Cellular Counterstaining
    Authors:  William M Palmer, John W Patrick and Yong-Ling Ruan, date: 04/05/2017, view: 3605, Q&A: 0
    [Abstract] This protocol was developed to study protein localisation within the vascular bundles of developing tomato fruit however, it can be applied to any resin embedded plant tissue. The vascular bundle is comprised of many different cells that all have unique properties. The mature sieve elements are enucleated and contain sieve plates that comprise of ...
    T Cell Transfer Model of Colitis
    Authors:  Wen Pan, Shu Zhu, Dai Dai, Yuanjia Tang, Yihong Yao and Nan Shen, date: 07/05/2016, view: 8388, Q&A: 0
    [Abstract] Inflammatory bowel disease (IBD), including Crohn’s disease (CD) and ulcerative colitis (UC) is mainly caused by disordered immune regulation and dysregulated intestinal microbiota. Here we present the T cell transfer model which has extensively used in many studies to identify the regulatory T cell function in gut inflammation. Naïve T cells only ...
    Morphological Quantification of Nuclei and Mitochondria in Serial Block-face Scanning Electron Microscopy Images
    Authors:  Haiyan Lu, Nobuhiko Ohno and Richard M. Ransohoff, date: 09/20/2015, view: 5255, Q&A: 0
    [Abstract] Serial Block-face Scanning Electron Microscopy (SBF-SEM or 3D-EM) is a powerful tool to study biological structure in ultrastructural level. Quantification of cellular ultrastructure is useful to providing biological information. This technique requires not only high quality of tissue fixation and ideal sample embedding to preserve structures, ...
    Transverse Sectioning of Arabidopsis thaliana Leaves Using Resin Embedding
    Authors:  Shweta Kalve, Kumud Saini, Kris Vissenberg, Tom Beeckman and Gerrit T. S. Beemster, date: 09/20/2015, view: 7965, Q&A: 0
    [Abstract] The leaf is the major functional part of the shoot performing the bulk of photosynthetic activity. Its development is relatively plastic allowing the plant to adapt to environmental changes by modifying leaf size and anatomy. Moreover, a leaf is made up of various distinct cell layers, each having specialized functions. To understand functional ...



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