Plant Science


    Protocols in Current Issue
    An Adjustable Protocol to Analyze Chemical Profiles of Non-sterile Rhizosphere Soil
    Authors:  Alex Williams, Jurriaan Ton and Pierre Pétriacq, date: 05/20/2019, view: 352, Q&A: 0
    [Abstract] The analysis of chemical diversity in non-sterile rhizosphere soil has been a pressing methodological challenge for years. Rhizosphere-enriched chemicals (i.e., rhizochemicals) include root exudation chemicals, (microbial) breakdown products thereof, and de novo produced metabolites by rhizosphere-inhabiting microbes, all of ...
    Analysis of Indole-3-acetic Acid (IAA) Production in Klebsiella by LC-MS/MS and the Salkowski Method
    Authors:  Shraddha Gang, Sheetal Sharma, Meenu Saraf, Martin Buck and Jörg Schumacher, date: 05/05/2019, view: 310, Q&A: 0
    [Abstract] Many rhizobacteria isolated from plant rhizosphere produce various phytohormones in the form of secondary metabolites, the most common of which is Indole-3-acetic acid (IAA). Here, we detail analytical protocols of IAA detection and quantification, in vitro and in situ, as recently applied to Klebsiella SGM 81, a ...
    Determination of Root Exudate Concentration in the Rhizosphere Using 13C Labeling
    Authors:  Laurent Simon and Feth el Zahar Haichar, date: 05/05/2019, view: 293, Q&A: 0
    [Abstract] One of the most remarkable metabolic features of plant roots is their ability to secrete a wide range of compounds into the rhizosphere, defined as the volume of soil around living roots. Around 5%-21% of total photosynthetically fixed carbon is transferred into the rhizosphere through root exudates. Until recently, studies on the quantity and ...
    Extraction and Purification of Laccases from Rice Stems
    Authors:  Chenna Swetha and P. V. Shivaprasad, date: 04/05/2019, view: 398, 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 ...
    Detection of Disulfides in Protein Extracts of Arabidopsis thaliana Using Monobromobimane (mBB)
    Authors:  Shin‐nosuke Hashida and Maki Kawai-Yamada, date: 03/05/2019, view: 641, Q&A: 0
    [Abstract] Thiol-disulfide exchange is a key posttranslational modification, determining the folding process of intra- and inter-protein structures. Thiols can be detected by colorimetric reagents, which are stoichiometrically reduced by free thiols, and by fluorescent adducts, showing fluorescence only after thioester formation. We adapted a simple ...
    Isolation of Thylakoid Membranes from the Cyanobacterium Synechocystis sp. PCC 6803 and Analysis of Their Photosynthetic Pigment-protein Complexes by Clear Native-PAGE
    Authors:  Josef Komenda, Vendula Krynická and Tomas Zakar, date: 01/05/2019, view: 1040, Q&A: 0
    [Abstract] Cyanobacteria represent a frequently used model organism for the study of oxygenic photosynthesis. They belong to prokaryotic microorganisms but their photosynthetic apparatus is quite similar to that found in algal and plant chloroplasts. The key players in light reactions of photosynthesis are Photosystem I and Photosystem II complexes (PSI and ...
    GC-MS-Based Analysis of Methanol: Chloroform-extracted Fatty Acids from Plant Tissues
    Authors:  Manish Kumar Patel, Shubhashis Das and Jitendra Kumar Thakur, date: 09/20/2018, view: 2113, Q&A: 0
    [Abstract] Fatty acids (FAs) are carboxylic acids with long aliphatic chains that may be straight, branched and saturated or unsaturated. Most of the naturally occurring plant FAs contains an even number of carbon (C4-C24). FAs are used in food and pharmacological industries due to their nutritional importance. In addition, FAs are considered as a promising ...
    Enzymatic Assays and Enzyme Histochemistry of Tuta absoluta Feeding on Tomato Leaves
    Authors:  Rim Hamza, José P. Beltrán and Luis A. Cañas, date: 09/05/2018, view: 1331, Q&A: 0
    [Abstract] Enzymes play a key role in insect-plant relationships. For a better understanding of these interactions, we analyzed Tuta absoluta digestive enzymes. Here, we describe a detailed protocol for the detection of trypsin and papain-like enzymes in Tuta absoluta larvae by enzyme histochemistry. This assay uses frozen and unfixed ...
    An Inexpensive and Comprehensive Method to Examine and Quantify Field Insect Community Influenced by Host Plant Olfactory Cues
    Authors:  Rupesh Kariyat, Jesus Chavana and Jasleen Kaur, date: 08/20/2018, view: 1346, Q&A: 0
    [Abstract] Insect pollinators, herbivores and their natural enemies use olfactory cues emitted by their host plants to locate them. In insect-plant ecology, understanding the mechanisms underlying these interactions are of critical importance, as this bio-communication has both ecological and agricultural applications. However, the first step in such ...
    Separation of Thylakoid Protein Complexes with Two-dimensional Native-PAGE
    Authors:  Marjaana Rantala, Virpi Paakkarinen and Eva-Mari Aro, date: 07/05/2018, view: 2200, Q&A: 0
    [Abstract] The hierarchical composition and interactions of the labile thylakoid protein complexes can be assessed by sequential 2D-native gel-electrophoresis system. Mild non-ionic detergent digitonin is used to solubilize labile protein super-and megacomplexes, which are then separated with first-dimension blue native polyacrylamide gel electrophoresis ...

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