Functional basis of primary succession: Traits of the pioneer microbes

Ni, Gaofeng; Lappan, Rachael; Hernández, Marcela; Santini, Talitha; Tomkins, Andrew G.; Greening, Chris

doi:10.1111/1462-2920.16266

Cited by 8 publications

(4 citation statements)

References 50 publications

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“…In addition, an increase in the number of potential microniches, habitat heterogeneity and resource changes with soil age, soil crust development and plant growth may support a more complex soil microbiome (Duran et al, 2021; Edwards & Cook, 2015; Rime et al, 2015; Schutte et al, 2010). The higher functional diversity in barren soils and biological soil crusts in our study could be explained by the selective pressure imposed by low nutrient and high ultraviolet (UV) conditions (Ni et al, 2022). In the vegetated soils, the successful establishment of highly competitive organisms and the increase in interspecific competition may have led to a decline in diversity (Ortiz‐Alvarez et al, 2018; Pothula & Adams, 2022).…”

Section: Discussionmentioning

confidence: 67%

Microbial dynamics in soils of the Damma glacier forefield show succession in the functional genetic potential

Feng,

Varliero,

et al. 2023

Environmental Microbiology

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Glacier retreat is a visible consequence of climate change worldwide. Although taxonomic change of the soil microbiomes in glacier forefields have been widely documented, how microbial genetic potential changes along succession is little known. Here, we used shotgun metagenomics to analyse whether the soil microbial genetic potential differed between four stages of soil development (SSD) sampled along three transects in the Damma glacier forefield (Switzerland). The SSDs were characterized by an increasing vegetation cover, from barren soil, to biological soil crust, to sparsely vegetated soil and finally to vegetated soil. Results suggested that SSD significantly influenced microbial genetic potential, with the lowest functional diversity surprisingly occurring in the vegetated soils. Overall, carbohydrate metabolism and secondary metabolite biosynthesis genes overrepresented in vegetated soils, which could be partly attributed to plant–soil feedbacks. For C degradation, glycoside hydrolase genes enriched in vegetated soils, while auxiliary activity and carbohydrate esterases genes overrepresented in barren soils, suggested high labile C degradation potential in vegetated, and high recalcitrant C degradation potential in barren soils. For N‐cycling, organic N degradation and synthesis genes dominated along succession, and gene families involved in nitrification were overrepresented in barren soils. Our study provides new insights into how the microbial genetic potential changes during soil formation along the Damma glacier forefield.

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Section: Discussionmentioning

confidence: 67%

Microbial dynamics in soils of the Damma glacier forefield show succession in the functional genetic potential

Feng,

Varliero,

et al. 2023

Environmental Microbiology

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“…It has been observed that microorganisms are the first colonizers after the receding glaciers in the mountains [29], so it is logical that the same process occurs in Antarctica. Unfortunately, the primary microbial succession in barren lands and other ecological niches is poorly investigated [30]. According to our hypothesis, archaea and bacteria are the first, while more time is needed for fungi to colonize the new environment.…”

Section: Discussionmentioning

confidence: 88%

Observations on the Antagonistic Relationships between Fungi, Archaea, and Bacteria in Livingston Island (Maritime Antarctica) with the Use of Amplicon-Based Metagenomics

Dimov,

Doytchinov,

Neykov

et al. 2024

Diversity

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An amplicon-based metagenomic survey of archaea, fungi, and bacteria was performed on Livingston Island, Maritime Antarctica. In many of the samples, patterns of antagonism between these three superkingdoms were observed in the form of an inversely proportional dependence of the richnesses of the three types of microorganisms. The antagonism was quantified—based on the observed numbers of the total tags and the numbers of the operational taxonomic units (OTUs), and on four alpha diversity parameters—using the Shannon, the Simpson, the Chao1, and the ACE indices. We found that the most discriminative results in the antagonism measuring were obtained when the numbers of the OTUs and the ACE community richness estimator were compared. The antagonism between archaea and fungi was most potent, followed by that of archaea and bacteria. The fungi–bacteria antagonism was slightly detectable. Pearson and Spearman correlation analyses also showed a statistically significant negative correlation between the fungal and archaeal effective tags, while the correlation between archaeal and bacterial diversity was positive. Indications of the order of primary microbial succession in barren ecological niches were also observed, demonstrating that archaea and bacteria are the pioneers, followed by fungi, which would displace archaea over time.

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“…It has been observed that microorganisms are the first colonizers after the receding glaciers in the mountains [30] so, it is logical that the same process occurs in Antarctica. Unfortunately, the primary microbial succession in barren lands and other ecological niches is poorly investigated [31]. According to our hypothesis, Archaea and Bacteria are the first, while for Fungi to colonize the new environment more time is needed.…”

Section: Discussionmentioning

confidence: 89%

Antarctic microbial wars: observations on the antagonisms between Fungi, Archaea, and Bacteria in Livingston Island

Dimov,

Doytchinov,

Neykov

et al. 2023

Preprint

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Within an amplicon-based metagenomic study of Archaea, Fungi, and Bacteria in Livingston Island, Maritime Antarctica, in many of the samples antagonisms between these three super kingdoms were observed under the form of an inversely proportional dependence of the richnesses of the three types of microorganisms. This was quantified - based on the observed numbers of the total tags and the numbers of the operational taxonomic units (OTUs), as well as based on four alpha diversity parameters – the Shannon, the Simpson, the Chao1, and the ACE indices. We found that the most discriminative results in the antagonism measuring were observed in the comparison of the numbers of the OTUs and the ACE community richness estimator. The antagonism between Archaea and Fungi was strongest, followed by that of Archaea and Bacteria. The Fungi-Bacteria antagonism was slightly detectable. Pearson and Spearman correlation analysis also showed a statistically significant negative correlation between the fungal and archaeal effective tags, while the correlation between archaeal and bacterial diversity was positive. Indications of the order of primary microbial succession in barren ecological niches were also observed, demonstrating that Archaea and Bacteria are the pioneers, followed by Fungi which in time would displace Archaea.

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Functional basis of primary succession: Traits of the pioneer microbes

Cited by 8 publications

References 50 publications

Microbial dynamics in soils of the Damma glacier forefield show succession in the functional genetic potential

Microbial dynamics in soils of the Damma glacier forefield show succession in the functional genetic potential

Observations on the Antagonistic Relationships between Fungi, Archaea, and Bacteria in Livingston Island (Maritime Antarctica) with the Use of Amplicon-Based Metagenomics

Antarctic microbial wars: observations on the antagonisms between Fungi, Archaea, and Bacteria in Livingston Island

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