Scholarlink

<p>While plant pathogens rely on their hosts for nutrients, the specific way they take these nutrients remains unclear. Recently, Wang et al. discovered that the bacterial type III effector AvrBs2 acts as a xanthosan synthetase, facilitating the transformation of uridine 5'-diphosphate-α-D-galactose into a sugar phosphodiester known as bis-(1,6)-cyclic dimeric α-D-galactose-phosphate, or xanthosan. When xanthosan is released from the plant’s cytoplasm into the apoplastic space, <i>Xanthomonas</i> species absorb it via the XanT transporter and break it down with the XanP phosphodiesterase to use as a source of nutrition. Overexpression of <i>XanP</i> in rice blocks the nutrient supply for <i>Xanthomonas oryzae</i> pv. <i>oryzicola</i> (<i>Xoc</i>), making the crop resistant to bacterial leaf streak disease.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Controlling plant diseases by blocking pathogen food supply chain

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月2日

查看全文
  • Huilin Lv,
  • Jessie McCalister,
  • Huan Chen,
  • Zheng Qing Fu

摘要

While plant pathogens rely on their hosts for nutrients, the specific way they take these nutrients remains unclear. Recently, Wang et al. discovered that the bacterial type III effector AvrBs2 acts as a xanthosan synthetase, facilitating the transformation of uridine 5'-diphosphate-α-D-galactose into a sugar phosphodiester known as bis-(1,6)-cyclic dimeric α-D-galactose-phosphate, or xanthosan. When xanthosan is released from the plant’s cytoplasm into the apoplastic space, Xanthomonas species absorb it via the XanT transporter and break it down with the XanP phosphodiesterase to use as a source of nutrition. Overexpression of XanP in rice blocks the nutrient supply for Xanthomonas oryzae pv. oryzicola (Xoc), making the crop resistant to bacterial leaf streak disease.