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toddler t-shirts banana toddler t-shirts fruit toddler t-shirts cavendish toddler t-shirts crop toddler t-shirts damage toddler t-shirts disease toddler t-shirts food toddler t-shirts fungus toddler t-shirts fusarium toddler t-shirts fusarium oxysporum toddler t-shirts horticulture toddler t-shirts hyphae toddler t-shirts microbiology toddler t-shirts micrograph toddler t-shirts pest toddler t-shirts

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This scanning electron micrograph shows the fungus Fusarium oyxsporum f. sp. cubense (yellow), within a sectioned pseudostem of an infected cavendish banana plant. The section also shows vascular bundles (blueish) and starch grains (grey) in the banana pseudostem. Fusarium oxysporum is the causal agent of the Panama disease of bananas. Cavendish bananas are resistant to the Race 1 but extremely susceptible to the Tropical Race 4 (TR4). TR4 is spreading and has been reported 2019 for the first time in the American continent where major banana producers are located. TR4 threatens the global banana production. The infected banana stem were provided by the researcher Fernando Garcia-Bastidas who does research at Keygene and Wageningen University. Scanning electron microscope, magnification 601 (at 15 cm image width).