Investigating marine Bacillus as an effective growth promoter for chickpea.

IF 3.6 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Journal, genetic engineering & biotechnology Pub Date : 2023-11-24 DOI:10.1186/s43141-023-00608-4
Khushbu Rathod, Shruti Rana, Pinakin Dhandukia, Janki N Thakker
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Abstract

Background: Microorganisms have characteristics that aid plant growth and raise the level of vital metabolites in plants for better growth including primary and secondary metabolites as well as several developmental enzymes. Marine bacteria must endure harsh environmental circumstances for their survival so it produces several secondary metabolites to protect themselves. Such metabolites might likewise be advantageous for a plant's growth. However, the effectiveness of marine microbes on plant growth remains unexplored. In the present study, we aim to evaluate such marine microbe both in vitro and in vivo as a plant growth promoter.

Result: Marine Bacillus licheniformis was found positive for vital plant growth-promoting traits like gibberellin and ammonia production, phosphate and potassium solubilization in vitro. Due to the presence of such traits, it was able to increase germination in chickpea. As it can colonize with the roots, it will be able to help plants absorb more nutrients. Additionally, in vivo study shows that B. licheniformis treatment caused rise in vital factors involved in plant growth and development like chlorophyll, POX, phenol, proline, carotenoid, flavonoid, total proteins and SOD which resulted in increase of chickpea height by 26.23% and increase in biomass by 33.85% in pot trials.

Conclusion: Marine B. licheniformis was able to promote plant growth and increased chickpea production in both number and weight for both in vitro and in vivo conditions.

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探讨海洋芽孢杆菌对鹰嘴豆生长的促进作用。
背景:微生物具有帮助植物生长和提高植物重要代谢物水平以促进植物生长的特性,包括初级代谢物和次级代谢物以及几种发育酶。海洋细菌必须忍受恶劣的生存环境,因此它产生几种次生代谢物来保护自己。这种代谢物可能同样有利于植物的生长。然而,海洋微生物对植物生长的影响仍未得到充分研究。在本研究中,我们的目的是在体外和体内评价这些海洋微生物作为植物生长促进剂的作用。结果:海洋地衣芽孢杆菌在体外对赤霉素和氨的生成、磷酸盐和钾的增溶等重要植物生长促进性状呈阳性。由于这些性状的存在,它能够提高鹰嘴豆的发芽率。由于它可以在根部定居,它将能够帮助植物吸收更多的营养。此外,体内研究表明,在盆栽试验中,地衣双歧杆菌处理使叶绿素、痘、酚、脯氨酸、类胡萝卜素、类黄酮、总蛋白和SOD等与植物生长发育有关的重要因子增加,使鹰嘴豆株高增加26.23%,生物量增加33.85%。结论:在离体和体内条件下,海洋地衣双歧杆菌均能促进植物生长,增加鹰嘴豆产量和重量。
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