p-Coumaric can alter the composition of cucumber rhizosphere microbial communities and induce negative plant-microbial interactions

Zhou, Xingang; Zhang, Jianhui; Pan, Dandan; Ge, X.; Xue, Jun; Chen, Shaocan; Wu, Fengzhi

doi:10.1007/s00374-018-1265-x

Cited by 81 publications

(53 citation statements)

References 52 publications

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“…These findings were in contrast with a recent study, showing that the diversity of bacterial communities was markedly greater in the suppressive soil of potato, compared with the conducive soil [36]. The lower diversity of bacterial communities in our suppressive soil may have resulted from lower pH conditions, which was similar to the observation that bacterial diversity was distinctly increased in higher pH soils [41,42]. Fungi are also an integral component of microbes in the soil ecosystem, which are important for soil functions and plant health [40].…”

Section: Discussioncontrasting

confidence: 99%

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Phenolic Acid-Degrading Consortia Increase Fusarium Wilt Disease Resistance of Chrysanthemum

Zhou

Zhu

et al. 2020

Agronomy

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Soil microbial community changes imposed by the cumulative effects of root-secreted phenolic acids (PAs) promote soil-borne pathogen establishment and invasion under monoculture systems, but the disease-suppressive soil often exhibits less soil-borne pathogens compared with the conducive soil. So far, it remains poorly understood whether soil disease suppressiveness is associated with the alleviated negative effects of PAs, involving microbial degradation. Here, the long-term monoculture particularly shaped the rhizosphere microbial community, for example by the enrichment of beneficial Pseudomonas species in the suppressive soil and thus enhanced disease-suppressive capacity, however this was not observed for the conducive soil. In vitro PA-degradation assays revealed that the antagonistic Pseudomonas species, together with the Xanthomonas and Rhizobium species, significantly increased the efficiency of PA degradation compared to single species, at least partially explaining how the suppressive soil accumulated lower PA levels than the conducive soil. Pot experiments further showed that this consortium harboring the antagonistic Pseudomonas species can not only lower PA accumulation in the 15-year conducive soils, but also confer stronger Fusarium wilt disease suppression compared with a single inoculum with the antagonistic bacteria. Our findings demonstrated that understanding microbial community functions, beyond the single direct antagonism, facilitated the construction of active consortia for preventing soil-borne pathogens under intensive monoculture.

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Section: Discussioncontrasting

confidence: 99%

“…Fungi are also an integral component of microbes in the soil ecosystem, which are important for soil functions and plant health [40]. Consecutive monoculture can shift the diversity and composition of a soil fungal community [17,41,42]. Xiong et al [17] have shown that vanilla monoculture notably increased soil fungal diversity.…”

Section: Discussionmentioning

confidence: 99%

Phenolic Acid-Degrading Consortia Increase Fusarium Wilt Disease Resistance of Chrysanthemum

Zhou

Zhu

et al. 2020

Agronomy

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“…Therefore, the differences observed in potential nitrification rates and the composition of nitrifiers evidently arose from the difference in sorgoleone release. The positive effect of sorgoleone on nitrification inhibition and plant growth indicates that it does not induce the overall plant-microbial interactions negatively as it was observed in cucumber by the autotoxin metabolite p-Coumaric (Zhou et al 2018).…”

Section: The Acidic Condition and Low Exchangeable Nh4 + -N And Nomentioning

confidence: 90%

Sorgoleone release from sorghum roots shapes the composition of nitrifying populations, total bacteria, and archaea and determines the level of nitrification

et al. 2019

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Sorgoleone is a secondary sorghum metabolite released from roots. It has allelopathic properties and is considered to inhibit ammonia-oxidizing archaea (AOA) and bacteria (AOB) responsible for the rate-limiting step (ammonia oxidation) in nitrification. Low activity of these microorganisms in soil may contribute to slow down nitrification and reduce nitrogen loss via denitrification and NO 3 − leaching. The potential nitrification rate (PNR) and the composition of microbial communities were monitored in rhizosphere soil to investigate the growth effect sorghum on biological nitrification inhibition (BNI). A greenhouse pipe experiment was conducted using sorghum lines IS20205 (highsorgoleone release ability), IS32234 (medium-sorgoleone release ability), 296B (low-sorgoleone release ability), and a control (no plants) combined with fertilization application of 0 or 120 kg N ha −1. We applied nitrogen as ammonium sulfate at 16 days (20 N), 37 days (40 N), and 54 days (60 N). We collected soil solutions at 7.5 cm depths every 3 days and measured the pH and nitrate levels. At 1 and 2.3 months, we sampled the bulk and rhizosphere soils and roots in the 0-10 cm, 10-30 cm, and 30-80 cm depths to determine NO 2 , mineral N, total N, total C, sorgoleone, the composition of AOA, AOB, and total bacteria and archaea. Sorgoleone was continuously released throughout the 2.3 months' growth and was significantly higher in IS20205, followed by IS32234 then 296B, which showed shallow levels. The IS2020 5rhizosphere showed lower NO 2 and nitrate levels and significant inhibition of AOA populations. However, we did not find significant differences in the abundance of AOB between plant treatments. Multivariate analysis and Spearman's correlations revealed that sorgoleone as well as environmental factors such as soil pH, soil moisture, NO 3 −-N, and NH 4 +-N shape the composition of microbial communities. This study demonstrated that the release of higher amounts of sorgoleone has great potential to inhibit the abundance of AOA and soil nitrification. The breeding of sorghum lines with the ability to release higher amounts of sorgoleone could be a strategic way to improve the biological nitrification inhibition during cultivation.

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“…Cucumber seedlings without inoculating FOC at the five-leaf stage were harvested 30 days after transplanting and the plant dry biomass measured. Meanwhile, cucumber seedling rhizosphere soils were collected (Zhou et al, 2018b). Briefly, cucumber seedling roots were carefully removed from the soil and shaken by hand to remove loosely attached soil.…”

Section: Measuring Cucumber Seedling Biomass and Sampling Rhizospherementioning

confidence: 99%

Intercropping of wheat changed cucumber rhizosphere bacterial community composition and inhibited cucumber Fusarium wilt disease

Xue

Shi

et al. 2020

Sci. agric. (Piracicaba, Braz.)

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Enhancing the plant rhizosphere microbial community function by increasing plant diversity in the field is a promising strategy for enhancing agricultural sustainability. This study evaluated the effectiveness of the intercropping of wheat in controlling cucumber Fusarium wilt disease. Bacterial community diversity and abundance in cucumber rhizosphere were estimated by high-throughput amplicon sequencing and quantitative polymerase chain reaction (PCR). Results showed that the intercropping of wheat inhibited the severity of cucumber seedling Fusarium wilt disease, increased the alpha diversity and altered the composition of the bacterial community in cucumber rhizosphere. Compared with monocropped cucumber, intercropped cucumber had higher relative abundances of Anaerolineae, Deltaproteobacteria, Phycisphaerae and Planctomycetacia, and lower Alphaproteobacteria and Cyanobacteria. Moreover, the intercropping of wheat promoted bacterial genera with plant-beneficial potential (e.g. Pseudomonas, Haliangium and Archangium spp.) in cucumber rhizosphere. Quantitative PCR confirmed that Pseudomonas spp. abundance was higher in intercropped cucumber rhizosphere than in monocropped cucumber rhizosphere. Overall, the intercropping of wheat decreased the severity of Fusarium wilt of cucumber and promoted potential plant-beneficial microbes in cucumber rhizosphere.

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p-Coumaric can alter the composition of cucumber rhizosphere microbial communities and induce negative plant-microbial interactions

Cited by 81 publications

References 52 publications

Phenolic Acid-Degrading Consortia Increase Fusarium Wilt Disease Resistance of Chrysanthemum

Phenolic Acid-Degrading Consortia Increase Fusarium Wilt Disease Resistance of Chrysanthemum

Sorgoleone release from sorghum roots shapes the composition of nitrifying populations, total bacteria, and archaea and determines the level of nitrification

Intercropping of wheat changed cucumber rhizosphere bacterial community composition and inhibited cucumber Fusarium wilt disease

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