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首页> 外文期刊>Plant and Soil >Flavonoid levels rather than soil nutrients is linked with Fusarium community in the soybean [Glycine max(L.) Merr.] rhizosphere under consecutive monoculture
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Flavonoid levels rather than soil nutrients is linked with Fusarium community in the soybean [Glycine max(L.) Merr.] rhizosphere under consecutive monoculture

机译：黄酮水平而不是土壤营养素与大豆（甘氨酸Max（L.）Merr。连续单一栽培中的镰刀菌群体有关

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Background and aims As potent allelochemicals, flavonoids are believed to be associated with the development of soil-borne diseases. Fusarium species infection is responsible for soybean [Glycine max(L.) Merr.] root rot. However, it is uncertain if and how flavonoids influence rhizosphere Fusarium communities under consecutive soybean monoculture. Methods Quantitative real-time PCR and pyrosequencing were used to study the Fusarium community. Spectrophotometric techniques and ultra-performance liquid chromatography (UPLC) were used to quantify flavonoids and daidzein and genistein levels, respectively. Results In field soil, the sizes of Fusarium community were higher from 6 to 13 years monoculture than from 1 to 3 years. The abundance of Fusarium community was significantly positively correlated with rhizosphere concentrations of the flavonoids and isoflavonoids daidzein and genistein levels. Consecutive monocultured soil selectively inhibited or stimulated certain Fusarium species, F. oxysporum remaining the most abundant. The application of daidzein and a mixture of daidzein and genistein to soil affected the Fusarium community depending on the incubation time and ranging from inhibition to promotion over time. Conclusions Consecutive soybean monoculture results in shifts in the composition and size of rhizosphere Fusarium community. The Fusarium community was strongly influenced by total flavonoids, in particular daidzein and genistein, rather than soil properties.
机译：背景和旨在作为有效的异种化学，据信黄酮类化合物与土壤传播疾病的发展有关。镰刀菌物种感染负责大豆[甘氨酸MAX（L.）MERR。根腐。然而，在连续大豆单一栽培中，黄酮类化合物是不确定的吗？方法采用定量实时PCR和焦磷酸化研究镰刀菌社区。分光光度法和超高效液相色谱（UPLC）分别用于量化黄酮类化合物和DaiDizein和Genistein水平。结果野外土壤，镰刀菌社区的尺寸从6至13岁的单一栽培量高于1至3年。丰富的镰刀菌社区与黄酮类化合物和异黄酮的脱桃素和霉素水平的根际浓度显着呈正相关。连续的单一渗水土壤有选择性地抑制或刺激某些镰刀镰刀菌物种，F. oxysporum仍然是最丰富的。 Daidzein和Daidzein和Genistein的混合物的应用根据孵化时间和随时间抑制的抑制来影响镰刀菌群。结论连续大豆单殖民文献导致无根际镰刀群落的组成和大小的变化。镰刀菌群体受到总黄酮，特别是Daidzein和Genistein，而不是土壤性质的强烈影响。

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