Plant nickel-exclusion versus hyperaccumulation: a microbial perspective DOI Creative Commons

Julie Dijoux,

Sarah Gigante,

Gaël Lecellier

et al.

Microbiome, Journal Year: 2025, Volume and Issue: 13(1)

Published: May 4, 2025

In New Caledonia, nearly 2000 plant species grow on ultramafic substrates, which contain prominent levels of heavy metals and are deficient in essential nutrients. To colonize these habitats, such plants, known as metallophytes, have developed various adaptive behaviors towards (exclusion, tolerance, or hyperaccumulation). Ultramafic substrates also host many unique microorganisms, adapted to metallic environments capable boosting growth while assisting plants acquiring micronutrients. Hence, plant-microbiota interactions play a key role adapting environmental stress. Here, we hypothesised that microbial associations the different aboveground underground compartments metallophytes could be associated their metal hyperaccumulation exclusion phenotypes. This hypothesis was tested using systematic comparative metabarcoding approach two Caledonian belonging same genus living sympatry substrates: Psychotria gabriellae, nickel-hyperaccumulator (Ni-HA), semperflorens, related non-accumulator (nA) species. The study diversity specificity fungal amplicon sequence variants (ASVs) reveals structuring communities at both phenotype compartment levels. contrast, structure bacterial primarily shaped by belowground compartments. Additionally, observed lower each For species, highlighted distinct global signature (biomarkers), well compartment-specific associations. our knowledge, this is first systematically compare microbiomes with metallophyte growing substrate under identical conditions but exhibiting Our results reveal biomarkers between Ni-hyperaccumulator Most abundant stress may contribute improving phytoextraction phytostabilization processes. They tolerate enhance tolerance plants. present findings highlight perspective for better understanding mechanisms whole-plant level. Video Abstract.

Language: Английский

The impact of abandoned iron ore on the endophytic bacterial communities and functions in the root systems of three major crops in the local area DOI Creative Commons
Shuyi Chen, Jie Tang, Junqiang Xu

et al.

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: Jan. 21, 2025

Introduction Global mining activities have significant impacts on ecosystems, but most studies focused only the relationship between soil physicochemical properties and microbial diversity in soils. The present study provides an insight into effects of physico-chemical endophytic bacterial community composition rhizosphere three different crops. Methods Musa basjoo Siebold L., Amygdalus persica Triticum aestivum L. were collected from inter-root soils plant roots to determine communities root system. Results results showed that resulted acidification, altered trace element content increased organic carbon. There was increase Ascomycota Actinobacteria phylum crop bacteria. Interestingly, chao1 shannon indices endophytes significantly elevated compared contro ( p < 0.05). Among them, highest level richness environment. environment functional enrichment histidine kinases oxidoreductases community. total potassium (TK) soil, as well Fe Pb content, positively correlated with α-diversity index Streptomyces . Zn Ti negatively index. Discussion This data support for exploring mechanisms response developing ecological restoration strategies areas.

Language: Английский

Citations

1
Leaf Development and Its Interaction with Phyllospheric Microorganisms: Impacts on Plant Stress Responses DOI Creative Commons
Huanhuan Yang, Jing Liu‐Zeng, Mei Ma

et al.

Plant Stress, Journal Year: 2025, Volume and Issue: unknown, P. 100843 - 100843

Published: April 1, 2025

Language: Английский

Citations

0
Plant nickel-exclusion versus hyperaccumulation: a microbial perspective DOI Creative Commons

Julie Dijoux,

Sarah Gigante,

Gaël Lecellier

et al.

Microbiome, Journal Year: 2025, Volume and Issue: 13(1)

Published: May 4, 2025

In New Caledonia, nearly 2000 plant species grow on ultramafic substrates, which contain prominent levels of heavy metals and are deficient in essential nutrients. To colonize these habitats, such plants, known as metallophytes, have developed various adaptive behaviors towards (exclusion, tolerance, or hyperaccumulation). Ultramafic substrates also host many unique microorganisms, adapted to metallic environments capable boosting growth while assisting plants acquiring micronutrients. Hence, plant-microbiota interactions play a key role adapting environmental stress. Here, we hypothesised that microbial associations the different aboveground underground compartments metallophytes could be associated their metal hyperaccumulation exclusion phenotypes. This hypothesis was tested using systematic comparative metabarcoding approach two Caledonian belonging same genus living sympatry substrates: Psychotria gabriellae, nickel-hyperaccumulator (Ni-HA), semperflorens, related non-accumulator (nA) species. The study diversity specificity fungal amplicon sequence variants (ASVs) reveals structuring communities at both phenotype compartment levels. contrast, structure bacterial primarily shaped by belowground compartments. Additionally, observed lower each For species, highlighted distinct global signature (biomarkers), well compartment-specific associations. our knowledge, this is first systematically compare microbiomes with metallophyte growing substrate under identical conditions but exhibiting Our results reveal biomarkers between Ni-hyperaccumulator Most abundant stress may contribute improving phytoextraction phytostabilization processes. They tolerate enhance tolerance plants. present findings highlight perspective for better understanding mechanisms whole-plant level. Video Abstract.

Language: Английский

Citations

0