Plant Science


    Protocols in Current Issue
    Methylation-sensitive Amplified Polymorphism as a Tool to Analyze Wild Potato Hybrids
    Authors:  Nicolás Cara, Carlos F. Marfil, María V. Bertoldi and Ricardo W. Masuelli, date: 07/05/2020, view: 137, Q&A: 0
    [Abstract] Methylation-Sensitive Amplification Polymorphism (MSAP) is a versatile marker for analyzing DNA methylation patterns in non-model species. The implementation of this technique does not require a reference genome and makes it possible to determine the methylation status of hundreds of anonymous loci distributed throughout the genome. In addition, ...
    Safe DNA-extraction Protocol Suitable for Studying Tree-fungus Interactions
    Authors:  Susanna Keriö, Eeva Terhonen and Jared M. LeBoldus, date: 06/05/2020, view: 987, Q&A: 0
    [Abstract] We present a safe and low-cost method suitable for DNA extraction from mycelium and tree tissue samples. After sample preparation, the extraction takes about 60 min. Method performance was tested by extracting DNA from various tree tissue samples and from mycelium grown on solid and liquid media. DNA was extracted from juvenile and mature host ...
    High-resolution and Deep Phylogenetic Reconstruction of Ancestral States from Large Transcriptomic Data Sets
    Authors:  Sumanth Kumar Mutte and Dolf Weijers, date: 03/20/2020, view: 884, Q&A: 0
    [Abstract] Phylogenetics is an important area of evolutionary biology that helps to understand the origin and divergence of genes, genomes and species. Building meaningful phylogenetic trees is needed for the accurate reconstruction of the past. To achieve a correct phylogenetic understanding of genes or proteins, reliable and robust methods are needed to ...
    Construction of Antisense RNA-mediated Gene Knock-down Strains in the Cyanobacterium Anabaena sp. PCC 7120
    Authors:  Amit Srivastava, Anand Ballal, Karl Forchhammer and Anil Kumar Tripathi, date: 02/20/2020, view: 972, Q&A: 0
    [Abstract] Anabaena sp. PCC 7120 (hereafter Anabaena) is a model cyanobacterium to study nitrogen fixation, cellular differentiation and several other key biological functions that are analogous in plants. As with any other organism, many genes in Anabaena encode an essential life function and hence cannot be deleted, causing a ...
    Measuring Protein Half-life in Arabidopsis thaliana
    Authors:  Hongqing Guo and Yanhai Yin, date: 08/05/2019, view: 1352, Q&A: 0
    [Abstract] Post-translational modifications play important roles in controlling protein function and can lead to altered protein stability. Protein stability can be determined after treatment with the protein synthesis inhibitor Cycloheximide. Cycloheximide is a translational inhibitor that inhibits protein synthesis via cytoplasmic ribosomes. Here we ...
    Extraction and Purification of Laccases from Rice Stems
    Authors:  Chenna Swetha and P. V. Shivaprasad, date: 04/05/2019, view: 2194, Q&A: 0
    [Abstract] Laccases are found in cell walls of plants in very low amounts. This protocol provides an efficient method to purify laccases from rice stems. The method involves three steps: 1) Isolation of total protein from rice stems using buffers with high salt concentration to extract protein from cell walls; 2) Purification of laccases using concanavalin-A ...
    In vitro Protein-DNA Binding Assay (AlphaScreen® Technology)
    Authors:  Mika Nomoto, Yasuomi Tada and Hironaka Tsukagoshi, date: 02/05/2019, view: 3156, Q&A: 0
    [Abstract] Identification of specific DNA binding sites of transcription factors is important in understanding their functions. Recent techniques allow us to investigate genome-wide in vivo binding positions by chromatin immunoprecipitation combined with high-throughput sequencing. However, to further explore the binding motifs of transcription ...
    Genome-wide Estimation of Evolutionary Distance and Phylogenetic Analysis of Homologous Genes
    Authors:  Meixia Zhao, Biao Zhang, Jianxin Ma and Damon Lisch, date: 12/05/2018, view: 3148, Q&A: 0
    [Abstract] Homologous genes, including paralogs and orthologs, are genes that share sequence homologies within or between different species. Homologous genes originate from a common origin through speciation, genetic duplication or horizontal gene transfer. Estimation of the sequence divergence of homologous genes help us to understand divergence time, which ...
    Using Arabidopsis Mesophyll Protoplasts to Study Unfolded Protein Response Signaling
    Authors:  Yan Bao and Diane C. Bassham, date: 12/05/2018, view: 2790, Q&A: 0
    [Abstract] Various environmental stresses or artificial reagents can trigger unfolded protein accumulation in the endoplasmic reticulum (ER) due to the folding capacity of the ER being exceeded. This is termed ER stress, and triggers the unfolded protein response (UPR). Assays for activation of the UPR in plants include Tunicamycin (Tm)- or dithiothreitol ...
    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: 3450, 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 ...

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