通过产生苷元的根瘤菌以及 L-色氨酸和硫酸亚铁的供应对 Solanum tuberosum L. 中的铁进行微生物生物强化

IF 2.3 3区 农林科学 Q1 AGRONOMY
Zain Mushtaq, Mehwish Liaquat, Sarvet Jehan, Muhammad Tahir Akram, Muhammad Tauseef Jaffar, Abdulrahman Alasmari
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引用次数: 0

摘要

粮食安全不仅要求提高作物产量,还要求提高粮食质量,同时减轻农业生产对自然资源和环境的有害影响。铁(Fe)缺乏症是一个普遍的营养问题,影响着全球很大一部分人口,尤其是儿童和孕妇。解决这些缺乏症的一个潜在办法是微生物生物强化,即有意增加农业植物中的有益养分。植物生长促进根瘤菌(PGPR)可以通过各种直接和间接的方法提高植物可食用部分的铁含量。本研究旨在评估两种细菌分离物单独或与 L-色氨酸和硫酸铁结合使用对马铃薯(Solanum tuberosum L.)的生长、生理、块茎特征和铁含量的综合影响。研究结果表明,施用 PGPR 和植物生长调节剂(PGR)可显著提高植株高度、茎秆产量和单株块茎数。仅施用 L-色氨酸(24.58%)和细菌菌株(Z-20 增加了 17.54%,Z-37 增加了 31.05%)可明显提高铁含量。此外,引入微生物菌群和 L-色氨酸后,马铃薯中铁的浓度比对照组显著提高了两倍。此外,氮(N)和磷(P)的浓度也显著增加。结果表明,根瘤菌的存在可以促进植物从土壤中吸收养分。这项研究表明,综合利用微生物辅助生物强化和 PGR 是解决微量营养元素缺乏问题的一种前景广阔、经济可行的策略,尤其是在资源有限的国家。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Microbial Biofortification of Iron in Solanum tuberosum L. through Siderophore-Producing Rhizobacteria along with L-Tryptophan and Iron Sulphate Supply

Microbial Biofortification of Iron in Solanum tuberosum L. through Siderophore-Producing Rhizobacteria along with L-Tryptophan and Iron Sulphate Supply

Food security necessitates not only increasing crop yields but also enhancing food quality while simultaneously mitigating the detrimental effects of agricultural practices on natural resources and the environment. Iron (Fe) deficiency is a prevalent nutritional concern that affects a significant portion of the global population, particularly children and pregnant women. One potential solution to address these deficiencies is microbial biofortification, which involves the intentional augmentation of beneficial nutrients within agricultural plants. Plant growth–promoting rhizobacteria (PGPR) can enhance the Fe content in the edible parts of plants through various direct and indirect methods. This study aimed to assess the combined impact of two bacterial isolates, both individually and in conjunction with L-tryptophan and iron sulphate, on the growth, physiology, tuber characteristics, and Fe content of potatoes (Solanum tuberosum L.). The findings indicated that the application of PGPR and plant growth regulators (PGR) significantly enhanced plant height, haulm yield, and the number of tubers per plant. Fe content was notably increased by the sole application of L-tryptophan (24.58%) and bacterial strains (Z-20 increased by 17.54% and Z-37 by 31.05%). Furthermore, the introduction of the microbial consortia and L-tryptophan resulted in a remarkable enhancement, with up to a two-fold increase in the Fe concentration of potatoes compared to the control. Additionally, nitrogen (N) and phosphorus (P) concentrations also increased significantly. The results indicate that the presence of rhizobacteria can facilitate nutrient absorption by plants from the soil. This study demonstrates that the combined use of microbial-assisted biofortification and PGR is a promising, economically viable strategy for addressing micronutrient deficiencies, especially in resource-limited countries.

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来源期刊
Potato Research
Potato Research AGRONOMY-
CiteScore
5.50
自引率
6.90%
发文量
66
审稿时长
>12 weeks
期刊介绍: Potato Research, the journal of the European Association for Potato Research (EAPR), promotes the exchange of information on all aspects of this fast-evolving global industry. It offers the latest developments in innovative research to scientists active in potato research. The journal includes authoritative coverage of new scientific developments, publishing original research and review papers on such topics as: Molecular sciences; Breeding; Physiology; Pathology; Nematology; Virology; Agronomy; Engineering and Utilization.
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