Scholarlink

<p>Plant species can have ecological impacts on co-occurring species by altering their resistance to natural enemies. Associational resistance occurs when one species reduces enemy damage to neighboring species, whereas associational susceptibility increases enemy damage to neighboring species. In a previous study, <i>Ipomoea tricolor</i> ‘Pearly Gates’ plants, endosymbiotic with alkaloid-producing <i>Periglandula</i> fungi developed fewer nematode galls and produced less biomass than non-endosymbiotic plants. To explore whether endosymbiont-mediated resistance could extend to neighboring species, we grew endosymbiotic or non-endosymbiotic <i>I. tricolor</i> with corn (<i>Zea mays</i>) in soil inoculated with Southern root-knot nematodes (<i>Meloidogyne incognita</i>) or no inoculation controls. Both nematode and endosymbiont treatments reduced total plant biomass per pot, but corn produced significantly more biomass in the nematode addition treatment when morning glory was endosymbiotic, consistent with associational resistance. These results suggest that the <i>Periglandula</i> endosymbiont of <i>I. tricolor</i> can enhance the growth of co-occurring plants in the presence of natural enemies.</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

Morning glory fungal endosymbiont can alter the impacts of belowground enemies on co-occurring crop species

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年3月17日

查看全文
  • Lekeah A. Durden,
  • Quynh N. Quach,
  • Keith Clay

摘要

Plant species can have ecological impacts on co-occurring species by altering their resistance to natural enemies. Associational resistance occurs when one species reduces enemy damage to neighboring species, whereas associational susceptibility increases enemy damage to neighboring species. In a previous study, Ipomoea tricolor ‘Pearly Gates’ plants, endosymbiotic with alkaloid-producing Periglandula fungi developed fewer nematode galls and produced less biomass than non-endosymbiotic plants. To explore whether endosymbiont-mediated resistance could extend to neighboring species, we grew endosymbiotic or non-endosymbiotic I. tricolor with corn (Zea mays) in soil inoculated with Southern root-knot nematodes (Meloidogyne incognita) or no inoculation controls. Both nematode and endosymbiont treatments reduced total plant biomass per pot, but corn produced significantly more biomass in the nematode addition treatment when morning glory was endosymbiotic, consistent with associational resistance. These results suggest that the Periglandula endosymbiont of I. tricolor can enhance the growth of co-occurring plants in the presence of natural enemies.