Aparicio Miguel A, Ruiz-Castilla Francisco J, Ramos José, Romera Francisco J, Lucena Carlos
Departamento de Agronomía, Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain.
Departamento de Química Agrícola, Edafología y Microbiología, Edificio Severo Ochoa (C-6), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain.
Plants (Basel). 2025 Jan 18;14(2):264. doi: 10.3390/plants14020264.
Iron (Fe) deficiency is among the most important agronomical concerns under alkaline conditions. Bicarbonate is considered an important factor causing Fe deficiency in dicot plants, mainly on calcareous soils. Current production systems are based on the use of high-yielding varieties and the application of large quantities of agrochemicals, which can cause major environmental problems. The use of beneficial rhizosphere microorganisms is considered a relevant sustainable alternative to synthetic fertilizers. The main purpose of this work has been to analyze the impact of the inoculation of tomato ( L.) seedlings with the WCS417 strain of , in the presence or absence of bicarbonate, on plant growth and other physiological parameters. To conduct this research, three different inoculation methods were implemented: root immersion, foliar application, and substrate inoculation by irrigation. The results obtained show the ability of the WCS417 strain to induce medium acidification in the presence of bicarbonate to increase the SPAD index and to improve the growth and development of the tomato plants in calcareous conditions provoked by the presence of bicarbonate, which indicates that this bacteria strain could have a great potential as an Fe biofertilizer.
缺铁是碱性条件下最重要的农学问题之一。碳酸氢根被认为是导致双子叶植物缺铁的一个重要因素，主要发生在石灰性土壤上。当前的生产系统基于使用高产品种和大量施用农用化学品，这可能会引发重大环境问题。使用有益的根际微生物被认为是替代合成肥料的一种相关可持续选择。这项工作的主要目的是分析在有或没有碳酸氢根的情况下，用WCS417菌株接种番茄（L.）幼苗对植物生长和其他生理参数的影响。为进行这项研究，实施了三种不同的接种方法：根部浸泡、叶面喷施和通过灌溉进行基质接种。所获得的结果表明，WCS417菌株在有碳酸氢根存在的情况下能够诱导介质酸化，以提高SPAD指数，并改善在碳酸氢根存在引起的石灰性条件下番茄植株的生长和发育，这表明该菌株作为铁生物肥料可能具有巨大潜力。
