Resistance of microbial community and its functional sensitivity in the rhizosphere hotspots to drought

Zhang, Xuechen; Myrold, David D.; Shi, Lingling; Kuzyakov, Yakov; Dai, Hongcui; Hoang, Duyen Thi Thu; Dippold, Michaela A.; Meng, Xiangtian; Song, Xiaona; Li, Ziyan; Zhou, Jie; Razavi, Bahar S.

doi:10.1016/j.soilbio.2021.108360

Cited by 54 publications

(21 citation statements)

References 67 publications

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“…Nocardioides could produce a large amount of IAA to help wheat resist salt stress ( Meena et al, 2020 ). In addition, in a drought environment, Nocardioides helped nitrogen recycle through leucine aminopeptidase and chitinase activities ( Zhang X. et al, 2021 ). Studies have indicated that Gaiella played an important role in nitrogen cycling in cultivated farm ecosystems ( Zhang B. et al, 2019 ).…”

Section: Discussionmentioning

confidence: 99%

“…In addition, in a drought environment, Nocardioides helped nitrogen recycle through leucine aminopeptidase and chitinase activities ( Zhang X. et al, 2021 ). Studies have indicated that Gaiella played an important role in nitrogen cycling in cultivated farm ecosystems ( Zhang B. et al, 2019 ). Bacillus is one of the most important PGPR that promotes plant growth and development by secreting phytohormones ( Shahzad et al, 2021 ), improving nutrient absorption and utilization efficiency ( Sun et al, 2021 ) and stress tolerance ( Shahid et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

“…In B . velezensis SQR9, TCS was used to break through the immune system of plants and enhance their root colonization ( Zhang H. et al, 2021 ). Besides, we also found an enrichment pathway of siderophore biosynthesis ( Supplementary Figure 6 ).…”

Section: Discussionmentioning

confidence: 99%

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Genotype-Specific Recruitment of Rhizosphere Bacteria From Sandy Loam Soil for Growth Promotion of Cucumis sativus var. hardwickii

Zheng

et al. 2022

Front. Microbiol.

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The composition and structure of the rhizosphere microbiome is affected by many factors, including soil type, genotype, and cultivation time of the plant. However, the interaction mechanisms among these factors are largely unclear. We use culture-independent 16S rRNA amplicon sequencing to investigate the rhizosphere bacterial composition and the structure of cultivated cucumber Xintaimici (XT) and wild-type cucumber Cucumis sativus var. hardwickii (HD) in four kinds of soils. We found that soil type, cultivation time, and genotype affected the composition and structure of cucumber rhizosphere bacterial communities. Notably, HD showed better physiological features in sandy soil and sandy loam soil than it did in black soil and farm soil at 50 days post-sowing, which was due to its stronger recruitment ability to Nitrospira, Nocardioides, Bacillus, and Gaiella in sandy soil, and more Tumebacillus, Nitrospira, and Paenibacillus in sandy loam soil. Meanwhile, we also found that HD showed a better recruiting capacity for these bacterial genera than XT in both sandy soil and sandy loam soil. Functional predictions indicated that these bacteria might have had stronger root colonization ability and then promoted the growth of cucumbers by enhancing nitrogen metabolism and active metabolite secretion. In this study, our findings provided a better insight into the relationship between cucumber phenotype, genotype, and the rhizosphere bacterial community, which will offer valuable theoretical references for rhizosphere microbiota studies and its future application in agriculture.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Genotype-Specific Recruitment of Rhizosphere Bacteria From Sandy Loam Soil for Growth Promotion of Cucumis sativus var. hardwickii

Zheng

et al. 2022

Front. Microbiol.

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“…The zymograms were transferred into a 16-bit grey scale in ImageJ and images of blank membranes (only with buffer) were subtracted from all samples. The calibration line obtained for each enzyme was used to convert grey values of each zymography pixel into enzyme activities (Zhang et al, 2021).…”

Section: Zymographymentioning

confidence: 99%

Ectomycorrhizal and non‐mycorrhizal rhizosphere fungi increase root‐derived C input to soil and modify enzyme activities: A ¹⁴C pulse labelling of Picea abies seedlings

Zhou

Gube

Holz

et al. 2022

Plant Cell & Environment

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Consequences of interactions between ectomycorrhizal fungi (EcMF) and nonmycorrhizal rhizosphere fungi (NMRF) for plant carbon (C) allocation belowground and nutrient cycling in soil remain unknown. To address this topic, we performed a mesocosm study with Norway spruce seedlings [Picea abies (L.) H. Karst] inoculated with EcMF, NMRF, or a mixture of both (MIX). 14 CO 2 pulse labelling of spruce was applied to trace and visualize the 14 C incorporation into roots, rhizohyphosphere and hyphosphere. Activities and localization of enzymes involved in the C, nitrogen (N) and phosphorus (P) cycling were visualized using zymography. Spruce seedlings inoculated with EcMF and NMRF allocated more C to soils (EcMF: 10.7%; NMRF: 3.5% of total recovered C) compared to uninoculated control seedlings. The 14 C activity in the hyphosphere was highest for EcMF and lowest for NMRF. In the presence of both, NMRF and EcMF (MIX), the 14 C activity was 64% lower compared with EcMF inoculation alone. This suggests a suppressed C allocation via EcMF likely due to the competition between EcMF and NMRF for N and P. Furthermore, we observed 57% and 49% higher chitinase and leucine-aminopeptidase activities in the rhizohyphosphere of EcMF compared to the uninoculated control, respectively. In contrast, β-glucosidase activity (14.3 nmol cm −2 h −1 ) was highest in NMRF likely because NMRF consumed rhizodeposits efficiently. This was further supported by

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“…However, these findings are based on studies with a limited number of BBP types and soil enzymatic activities. Microbial community structure, richness, and microbial biomass were reported to be good predictors for soil enzyme activities [ 19 ]. Some studies have revealed that microbial community structure and enzyme activity in soils are significantly linked with each other, which underlines the microbial structure–function relationships [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Links among Microbial Communities, Soil Properties and Functions: Are Fungi the Sole Players in Decomposition of Bio-Based and Biodegradable Plastic?

et al. 2022

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The incomplete degradation of bio-based and biodegradable plastics (BBPs) in soils causes multiple threats to soil quality, human health, and food security. Plastic residuals can interact with soil microbial communities. We aimed to link the structure and enzyme-mediated functional traits of a microbial community composition that were present during poly (butylene succinate-co-butylene adipate (PBSA) decomposition in soil with (PSN) and without (PS) the addition of nitrogen fertilizer ((NH4)2SO4). We identified bacterial (Achromobacter, Luteimonas, Rhodanobacter, and Lysobacter) and fungal (Fusarium, Chaetomium, Clonostachys, Fusicolla, and Acremonium) taxa that were linked to the activities of ß-glucosidase, chitinase, phosphatase, and lipase in plastic-amended soils. Fungal biomass increased by 1.7 and 4 times in PS and PSN treatment, respectively, as compared to non-plastic amended soil. PBSA significantly changed the relationships between soil properties (C: N ratio, TN, and pH) and microbial community structure; however, the relationships between fungal biomass and soil enzyme activities remained constant. PBSA significantly altered the relationship between fungal biomass and acid phosphatase. We demonstrated that although the soil functions related to nutrient cycling were not negatively affected in PSN treatment, potential negative effects are reasoned by the enrichment of plant pathogens. We concluded that in comparison to fungi, the bacteria demonstrated a broader functional spectrum in the BBP degradation process.

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Resistance of microbial community and its functional sensitivity in the rhizosphere hotspots to drought

Cited by 54 publications

References 67 publications

Genotype-Specific Recruitment of Rhizosphere Bacteria From Sandy Loam Soil for Growth Promotion of Cucumis sativus var. hardwickii

Genotype-Specific Recruitment of Rhizosphere Bacteria From Sandy Loam Soil for Growth Promotion of Cucumis sativus var. hardwickii

Ectomycorrhizal and non‐mycorrhizal rhizosphere fungi increase root‐derived C input to soil and modify enzyme activities: A ¹⁴C pulse labelling of Picea abies seedlings

Links among Microbial Communities, Soil Properties and Functions: Are Fungi the Sole Players in Decomposition of Bio-Based and Biodegradable Plastic?

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Resistance of microbial community and its functional sensitivity in the rhizosphere hotspots to drought

Cited by 54 publications

References 67 publications

Genotype-Specific Recruitment of Rhizosphere Bacteria From Sandy Loam Soil for Growth Promotion of Cucumis sativus var. hardwickii

Genotype-Specific Recruitment of Rhizosphere Bacteria From Sandy Loam Soil for Growth Promotion of Cucumis sativus var. hardwickii

Ectomycorrhizal and non‐mycorrhizal rhizosphere fungi increase root‐derived C input to soil and modify enzyme activities: A 14C pulse labelling of Picea abies seedlings

Links among Microbial Communities, Soil Properties and Functions: Are Fungi the Sole Players in Decomposition of Bio-Based and Biodegradable Plastic?

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Ectomycorrhizal and non‐mycorrhizal rhizosphere fungi increase root‐derived C input to soil and modify enzyme activities: A ¹⁴C pulse labelling of Picea abies seedlings