Azotobacter chroococcum F8/2: a multitasking bacterial strain in sugar beet biopriming

IF 2.6 3区生物学 Q2 PLANT SCIENCES

Journal of Plant Interactions Pub Date : 2022-06-30 DOI:10.1080/17429145.2022.2091802

Slavica Kerečki, I. Pećinar, Vera Karličić, N. Mirković, I. Kljujev, V. Raičević, Jelena Jovičić-Petrović

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引用次数: 1

Abstract

ABSTRACT This study assesses the effects of Azotobacter biopriming on the early development of sugar beet. Azotobacter chroococcum F8/2 was screened for plant growth promoting characteristics and biopriming effects were estimated through germination parameters and the structural changes of the root tissues. A. chroococcum F8/2 was characterized as a contributor to nitrogen, iron, and potassium availability, as well as a producer of auxin and 1-aminocyclopropane-1-carboxilic acid deaminase. Applied biopriming had reduced mean germination time by 34.44% and increased vigor I by 90.99% compared to control. Volatile blend comprised 47.67% ethanol, 32.01% 2-methyl-propanol, 17.32% 3-methyl-1-butanol, and a trace of 2,3-butanedione. Root micromorphological analysis of bioprimed sugar beet revealed a considerable increase in primary, secondary xylem area, and vessels size. Obtained results determine A. chroococcum F8/2 as a successful biopriming agent, and active participant in nutrient availability and hormonal status modulation affecting root vascular tissue.

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固氮细菌choococcus F8/2:一种在甜菜生物发酵中的多任务菌株

摘要本研究评估了固氮菌生物农药对甜菜早期发育的影响。筛选了慢球菌（Azotobacter chroococcum）F8/2的促生长特性，并通过发芽参数和根组织结构变化来评价其生物鉴别效果。A.chroococcum F8/2被表征为氮、铁和钾有效性的贡献者，以及生长素和1-氨基环丙烷-1-羧酸脱氨酶的产生者。与对照组相比，应用生物农药使平均发芽时间缩短了34.44%，活力I提高了90.99%。挥发性混合物包括47.67%的乙醇、32.01%的2-甲基丙醇、17.32%的3-甲基-1-丁醇和痕量的2，3-丁二酮。生物聚合甜菜根的微观形态分析显示，初级、次级木质部面积和导管大小显著增加。所获得的结果确定A.chroococcumF8/2是一种成功的生物农药，也是影响根血管组织的营养物质可用性和激素状态调节的积极参与者。

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来源期刊

Journal of Plant Interactions PLANT SCIENCES-

CiteScore

5.30

自引率

6.20%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Plant Interactions aims to represent a common platform for those scientists interested in publishing and reading research articles in the field of plant interactions and will cover most plant interactions with the surrounding environment.