Department of Biosciences, Veer Narmad South Gujarat University, Surat 395 007, Gujarat, India.
C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Bardoli, Surat 394 350, Gujarat, India.
Lett Appl Microbiol. 2023 Jan 23;76(1). doi: 10.1093/lambio/ovac038.
The biofortification approach has been widely used to enhance mineral nutrients in staple foods such as rice (Oryza sativa). In the present study, iron-solubilizing plant growth-promoting bacteria (PGPB) were evaluated for iron fortification of rice grains and NPK via field experiments. Inoculation of iron-solubilizing bacteria showed significant improvements in growth parameters, such as plant height, root and shoot dry weight, panicle length, grain yield, and nitrogen, potassium, phosphorus, and iron uptake. The mobilization of iron was ranged from 53.88% to 89.05% in rice grains compared to the uninoculated plants. The present study results revealed that application of PGPB strains is vital approach to combat the problem of iron deficiency in rice and subsequently in humans.
生物强化方法已被广泛用于提高水稻（Oryza sativa）等主食中的矿物质营养。本研究通过田间试验评估了溶铁植物促生菌（PGPB）对水稻籽粒和 NPK 的铁强化作用。接种溶铁细菌可显著提高株高、根和茎干重、穗长、籽粒产量以及氮、钾、磷和铁的吸收等生长参数。与未接种植物相比，铁在水稻籽粒中的利用率为 53.88%至 89.05%。本研究结果表明，应用 PGPB 菌株是解决水稻乃至人类铁缺乏问题的重要方法。
