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  • Title: Use of Electron Microscopy for the Detection of Contaminant Endophytic Bacteria In Vitro.
    Author: de Araújo Silva-Cardoso IM, Medeiros MO, Gomes ACMM, de Souza ALX, Scherwinski-Pereira JE.
    Journal: Methods Mol Biol; 2024; 2827():71-84. PubMed ID: 38985263.
    Abstract:
    The success of in vitro cultivation, particularly for micropropagation purposes, depends on the efficient control of contaminants. In this context, the sterilization of plant material constitutes a fundamental step in initiating cultures. Microbial contaminants can be found either on the surface (epiphyte) or inside plant explants (endophyte). However, the latter is generally challenging to detect and may not always be eradicated through surface sterilization alone. Endophyte contaminants, such as bacteria, can persist within plant material over several cultivation cycles, potentially interfering with or inhibiting in vitro establishment, growth, or recovery of cryopreserved materials. Therefore, microscopy techniques, such as electron microscopy, can yield valuable insights into bacterial endophytes' localization, tissue colonization patterns, and functions in in vitro plant culture. This information is essential for adopting effective strategies for eliminating, preventing, or harmonious coexistence with contaminants.
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