Quality traits drive the enrichment of Massilia in the rhizosphere to improve soybean oil content.

IF 13.8 1区 生物学 Q1 MICROBIOLOGY Microbiome Pub Date : 2024-10-31 DOI:10.1186/s40168-024-01933-7
Qin Han, Guanghui Zhu, Hongmei Qiu, Mingbo Li, Jiaming Zhang, Xinying Wu, Renhao Xiao, Yan Zhang, Wei Yang, Bing Tian, Lanxi Xu, Jiayang Zhou, Yutong Li, Yueqiang Wang, Yang Bai, Xia Li
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Abstract

Background: Soybean seeds are rich in protein and oil. The selection of varieties that produce high-quality seeds has been one of the priorities of soybean breeding programs. However, the influence of improved seed quality on the rhizosphere microbiota and whether the microbiota is involved in determining seed quality are still unclear. Here, we analyzed the structures of the rhizospheric bacterial communities of 100 soybean varieties, including 53 landraces and 47 modern cultivars, and evaluated the interactions between seed quality traits and rhizospheric bacteria.

Results: We found that rhizospheric bacterial structures differed between landraces and cultivars and that this difference was directly related to their oil content. Seven bacterial families (Sphingomonadaceae, Gemmatimonadaceae, Nocardioidaceae, Xanthobacteraceae, Chitinophagaceae, Oxalobacteraceae, and Streptomycetaceae) were obviously enriched in the rhizospheres of the high-oil cultivars. Among them, Oxalobacteraceae (Massilia) was assembled specifically by the root exudates of high-oil cultivars and was associated with the phenolic acids and flavonoids in plant phenylpropanoid biosynthetic pathways. Furthermore, we showed that Massilia affected auxin signaling or interfered with active oxygen-related metabolism. In addition, Massilia activated glycolysis pathway, thereby promoting seed oil accumulation.

Conclusions: These results provide a solid theoretical basis for the breeding of revolutionary soybean cultivars with desired seed quality and optimal microbiomes and the development of new cultivation strategies for increasing the oil content of seeds. Video Abstract.

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质量特性促使根瘤菌大量繁殖,从而提高了大豆的含油量。
背景:大豆种子富含蛋白质和油脂。选育能生产优质种子的品种一直是大豆育种计划的重点之一。然而,种子质量的提高对根瘤菌群的影响以及微生物群是否参与决定种子质量仍不清楚。在此,我们分析了 100 个大豆品种(包括 53 个陆生品种和 47 个现代栽培品种)的根瘤菌群落结构,并评估了种子质量性状与根瘤菌之间的相互作用:结果:我们发现,不同陆生品种和栽培品种的根瘤细菌结构不同,而且这种差异与含油量直接相关。高油栽培品种根瘤菌明显富集了 7 个细菌科(Sphingomonadaceae、Gemmatimonadaceae、Nocardioidaceae、Xanthobacteraceae、Chitinophagaceae、Oxalobacteraceae 和 Streptomycetaceae)。其中,牛杆菌科(Massilia)在高油栽培品种的根渗出物中特别聚集,并与植物苯丙类生物合成途径中的酚酸和类黄酮相关。此外,我们还发现,Massilia 会影响辅酶信号或干扰活性氧相关的新陈代谢。此外,Massilia 还激活了糖酵解途径,从而促进了种子油的积累:这些结果为培育具有理想种子质量和最佳微生物组的革命性大豆栽培品种以及开发提高种子含油量的新栽培策略提供了坚实的理论基础。视频摘要
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来源期刊
Microbiome
Microbiome MICROBIOLOGY-
CiteScore
21.90
自引率
2.60%
发文量
198
审稿时长
4 weeks
期刊介绍: Microbiome is a journal that focuses on studies of microbiomes in humans, animals, plants, and the environment. It covers both natural and manipulated microbiomes, such as those in agriculture. The journal is interested in research that uses meta-omics approaches or novel bioinformatics tools and emphasizes the community/host interaction and structure-function relationship within the microbiome. Studies that go beyond descriptive omics surveys and include experimental or theoretical approaches will be considered for publication. The journal also encourages research that establishes cause and effect relationships and supports proposed microbiome functions. However, studies of individual microbial isolates/species without exploring their impact on the host or the complex microbiome structures and functions will not be considered for publication. Microbiome is indexed in BIOSIS, Current Contents, DOAJ, Embase, MEDLINE, PubMed, PubMed Central, and Science Citations Index Expanded.
期刊最新文献
Intestinal commensal bacteria promote Bactrocera dorsalis larval development through the vitamin B6 synthesis pathway. MAGqual: a stand-alone pipeline to assess the quality of metagenome-assembled genomes. The gut microbiome in patients with Cushing's disease affects depression- and anxiety-like behavior in mice. Quality traits drive the enrichment of Massilia in the rhizosphere to improve soybean oil content. Eubacterium siraeum suppresses fat deposition via decreasing the tyrosine-mediated PI3K/AKT signaling pathway in high-fat diet-induced obesity.
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