...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Protoplasma: An International Journal of Cell Biology >Root apical meristems of Allium porrum L. as affected by arbuscular mycorrhizae and phosphorus
【24h】

Root apical meristems of Allium porrum L. as affected by arbuscular mycorrhizae and phosphorus

机译：丛枝菌根和磷对韭葱根尖分生组织的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Arbuscular mycorrhizal (AM) fungi significantly improve plant growth in soils with low phosphorus availability and cause many changes in root morphology, similar to those produced by increased P nutrition, mainly depending on root apex size and activity. The aim of this work was to discriminate between the morphogenetic role of AM fungi and P in leek (Allium porrum L.) by feeding mycorrhizal and nonmycorrhizal plants with two nutrient solutions containing 3.2 or 96 muM P and examining specific parameters related to adventitious root apices (apex size, mitotic cycle, anc RNA synthesis). The results showed that AM fungi blocked meristem activity as indicated by the higher percentages of inactive apices and metaphases in the apical meristem of mycorrhizal plants, whereas the high P supply lengthened the mitotic cycle without blocking the apices, resulting in steady, slow root growth. The possible involvement of abscisic acid in the regulation of root apex activity is discussed. [References: 50]
机译：丛枝菌根（AM）真菌可显着改善磷利用率低的土壤中的植物生长，并导致根系形态发生许多变化，这与磷素营养增加所产生的变化相似，主要取决于根尖的大小和活性。这项工作的目的是通过向菌根和非菌根植物饲喂含有3.2或96μMP的两种营养液并检查与不定根尖相关的特定参数，从而区分AM真菌和P在韭菜（葱属）中的形态发生作用。 （顶点大小，有丝分裂周期，anc RNA合成）。结果表明，AM真菌阻断了分生组织的活性，菌根植物的顶端分生组织中无活性的顶点和中期的百分比更高，而高P的供应延长了有丝分裂周期而没有阻断顶点，导致了稳定，缓慢的根生长。讨论了脱落酸可能参与根尖活动的调节。 [参考：50]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号