Data from: Root-exuded benzoxazinoids can alleviate negative plant-soil feedbacks
Data files
Sep 21, 2023 version files 85.94 KB
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Fig1_BX_maize_1.csv
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Fig1_Phenotypes_maize_1.csv
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Fig2_Phen_maize_lin_soil.csv
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Fig3_Phenotypes_maize_rep1_time.csv
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Fig4_Phenotypes_maize_rep1.csv
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Fig4_Phenotypes_maize_rep2a.csv
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Fig4_Phenotypes_maize_rep3a.csv
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Fig5_Phenotypes_maize_rep2b.csv
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Fig5_Phenotypes_maize_rep3b.csv
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FigS2_Phenotypes_precrops_1.csv
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FigS3_Phen_precr_lin_soil.csv
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FigS4_Phenotypes_precrops_rep1.csv
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FigS4_Phenotypes_precrops_rep2.csv
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FigS4_Phenotypes_precrops_rep3.csv
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FigS5_BX_composition_rep1.csv
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FigS5_BX_composition_rep3.csv
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FigS5_BX_maize_rep1.csv
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FigS5_BX_maize_rep2.csv
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FigS5_BX_maize_rep3.csv
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README.md
Dec 18, 2023 version files 86.11 KB
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Fig1_BX_maize_1.csv
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Fig1_Phenotypes_maize_1.csv
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Fig2_Phen_maize_lin_soil.csv
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Fig3_Phenotypes_maize_rep1_time.csv
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Fig4_Phenotypes_maize_rep1.csv
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Fig4_Phenotypes_maize_rep2a.csv
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Fig4_Phenotypes_maize_rep3a.csv
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Fig5_Phenotypes_maize_rep2b.csv
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Fig5_Phenotypes_maize_rep3b.csv
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FigS2_Phenotypes_precrops_1.csv
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FigS3_Phen_precr_lin_soil.csv
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FigS4_Phenotypes_precrops_rep1.csv
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FigS4_Phenotypes_precrops_rep2.csv
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FigS4_Phenotypes_precrops_rep3.csv
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FigS5_BX_composition_rep1.csv
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FigS5_BX_composition_rep3.csv
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FigS5_BX_maize_rep1.csv
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FigS5_BX_maize_rep2.csv
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FigS5_BX_maize_rep3.csv
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README.md
Abstract
Plants can suppress the growth of other plants by modifying soil properties. These negative plant-soil feedbacks are often species-specific, suggesting that some plants possess resistance strategies. However, the underlying mechanisms remain largely unknown. Here, we investigated if and how benzoxazinoids, a class of dominant secondary metabolites that are exuded into the soil by maize and other cereals, influence plant-soil feedbacks. We find that three out of five tested crop species suppress maize (Zea mays) performance via negative plant-soil feedbacks relative to the mean across species. This effect is partially alleviated by the capacity of maize plants to produce benzoxazinoids. Soil complementation with purified benzoxazinoids is sufficient to restore the protective effect for benzoxazinoid-deficient mutants. Sterilization and re-inoculation experiments suggest that benzoxazinoid-mediated protection acts via changes in soil biota. Substantial variation of the protective effect between experiments and soil types illustrates that its magnitude is context-dependent. In summary, our study demonstrates that plant secondary metabolites can confer resistance to negative plant-soil feedbacks. These findings expand the functional repertoire of plant secondary metabolites and reveal a mechanism by which plants can resist negative soil feedbacks. The uncovered phenomenon may represent a promising avenue to stabilize plant performance in crop rotations in the future.
README: Data from: Root-exuded benzoxazinoids can alleviate negative plant-soil feedbacks
https://doi.org/10.5061/dryad.j6q573nmf
This repository contains the data for the article published in New Phytologist:
Root-exuded benzoxazinoids can alleviate negative plant-soil feedbacks
Valentin Gfeller, Lisa Thoenen, Matthias Erb
Description of the data and file structure
All data sheets are named according to the figures in the manuscript.
Description of the column names:
Fig.1
- "pre_crop" and "Pre_crop_long" = the name of the precrop
- "trt" = maize genotype ("w" = wild-type maize, "b" = bx1 mutant maize)
- "height_harvest" = shoot height in cm
- "dw_harvest" = shoot dry weight in g
- "compound" = name of compound measured
- "Area" = area under the curve for a given compound
- "conc" = concentration of a given compound in ng/mL of soil
Fig.2
- "maize_line" = the name of the maize line (B73 or W22)
- "soil" = origin of the soil (Field Q-Matte or field in Changins)
- "trt" = maize genotype ("w" = wild-type maize, "b" = bx1 mutant maize)
- "precrop" = the name of the precrop
- "height_3weeks" = shoot height 3 weeks after sowing in cm
- "height_6weeks" = shoot height at harvest in cm
- "dw_6weeks" = shoot dry weight at harvest in g
Fig.3
- "trt" = maize genotype ("w" = wild-type maize, "b" = bx1 mutant maize)
- "height_d..XX.." = shoot height ..X.. days after sowing in cm
- "dry_weight_d27" = shoot dry weight at harvest in g
- "chloro_d27" = Chlorophyll content at harvest (SPAD value)
Fig.4
- "precrop" = the name of the precrop
- "trt" = maize genotype ("w" = wild-type maize, "b" = bx1 mutant maize)
- "x_ray" = soil sterilization with X-ray
- "inoculate" = inoculation with living soil ("no" = no inoculation, "Tri" = inoculation with Triticum aestivum conditioned soil)
- "complementation" = complementation treatment ("no" = control without benzoxazinoids, "yes" = complementation with benzoxazionids)
- "height_harvest" = shoot height at harvest in cm
- "dw_harvest" = shoot dry weight at harvest in g
- "chloro_harvest" = Chlorophyll content at harvest (SPAD value)
Fig.5
- "precrop" = the name of the precrop
- "trt" = maize genotype ("w" = wild-type maize, "b" = bx1 mutant maize)
- "sterilization" = soil sterilization with X-ray
- "inoculate" = inoculation with living soil ("no" = no inoculation, "Tri" = inoculation with Triticum aestivum conditioned soil, "Med" = inoculation with Medicago sativa conditioned soil)
- "height_harvest" = shoot height at harvest in cm
- "dw_harvest" = shoot dry weight at harvest in g
- "chloro_harvest" = Chlorophyll content at harvest (SPAD value) The data sheet for Fig.5(a, b, c) is stored under Fig.4 ("Phenotypes_maize_rep1.csv")
Fig.6
The data sheet for Fig.6 is stored under Fig.5 ("Phenotypes_maize_rep3b.csv")
Fig.S2
- "pre_crop" and "Pre_crop_long" = the name of the precrop
- "dw_precrop" = shoot dry weight in g The data sheet for Fig.S2(b) is stored under Fig.1 ("Phenotypes_maize_1.csv")
Fig.S3
- "soil" = origin of the soil (Field Q-Matte or field in Changins)
- "precrop" = the name of the precrop
- "dw_precrop" = shoot dry weight in g The data sheet for Fig.S3(b) is stored under Fig.2 ("Phen_maize_lin_soil.csv")
Fig.S4
- "precrop" = the name of the precrop
- "dw_precrop" = shoot dry weight in g
Fig.S5
- "pre_crop" = the name of the precrop
- "trt" = maize genotype ("w" = wild-type maize, "b" = bx1 mutant maize)
- "compound" = name of compound measured
- "Area" = area under the curve for a given compound
- "ng_mL" = concentration of a given compound in ng/mL of soil
- "BX_comp" = complementation treatment ("no" = control without benzoxazinoids, "comp" = complementation with benzoxazionids)
- "complementation" = complementation treatment ("no" = control without benzoxazinoids, "BX" = complementation with benzoxazionids)
- "complementation" = complementation treatment ("no" = control without benzoxazinoids, "comp" = complementation with benzoxazionids)