Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados (CINVESTAV-IPN), Irapuato CP 36821, Guanajuato, México.
Laboratorio Nacional de Genómica para la Biodiversidad/Unidad de Genómica Avanzada, Centro de Investigación y Estudios Avanzados (CINVESTAV-IPN), Irapuato CP 36821, Guanajuato, México.
Plant Cell Physiol. 2017 Oct 1;58(10):1689-1699. doi: 10.1093/pcp/pcx100.
Arbuscular mycorrhizal symbiosis is an ancient interaction between plants and fungi of the phylum Glomeromycota. In exchange for photosynthetically fixed carbon, the fungus provides the plant host with greater access to soil nutrients via an extensive network of root-external hyphae. Here, to determine the impact of the symbiosis on the host ionome, the concentration of 19 elements was determined in the roots and leaves of a panel of 30 maize varieties, grown under phosphorus-limiting conditions, with or without inoculation with the fungus Funneliformis mosseae. Although the most recognized benefit of the symbiosis to the host plant is greater access to soil phosphorus, the concentration of a number of other elements responded significantly to inoculation across the panel as a whole. In addition, variety-specific effects indicated the importance of plant genotype to the response. Clusters of elements were identified that varied in a co-ordinated manner across genotypes, and that were maintained between non-inoculated and inoculated plants.
丛枝菌根共生是一种古老的植物与真菌之间的相互作用，真菌属于球囊霉门。真菌为植物宿主提供了广泛的根外菌丝网络，使植物宿主能够更有效地获取土壤养分，作为光合作用固定碳的交换。在这里，为了确定共生对宿主离子组的影响，在磷限制条件下，用或不用丛枝菌根真菌摩西管柄囊霉接种，对 30 个玉米品种的根和叶中的 19 种元素的浓度进行了测定。尽管人们最认可的共生对宿主植物的益处是更有效地获取土壤磷，但整个试验组中，有许多其他元素的浓度对接种有明显的响应。此外，特定品种的效应表明，植物基因型对这种响应很重要。鉴定出了一些元素簇，这些元素簇在不同基因型之间以协调的方式变化，并且在未接种和接种植物之间保持不变。
