Diversity of arbuscular mycorrhizal fungi and its response to seasonal variation in alpine grassland of the eastern Tibetan Plateau

Frontiers in Microbiology, Год журнала: 2025, Номер 16

Опубликована: Фев. 25, 2025

Arbuscular mycorrhizal (AM) fungi play a crucial role in maintaining diversity and ensuring the proper functioning of grassland ecosystems. A comprehensive understanding diversity, distribution patterns, drivers AM different habitats is essential for exploring ecological roles In this study, we utilized high-throughput sequencing technology to explore their at an altitude approximately 3,500 m alpine eastern Tibetan Plateau. Additionally, investigated impacts seasonal variation on fungal communities. total 97 species fungi, comprising 937 operational taxonomic units (OTUs) belong 9 families 10 genera, were identified from soil samples. Notably, genera Glomus Paraglomus most abundant dominant within The composition, distribution, communities Plateau significantly affected by (p < 0.05), with geographic distance being determining factor. Total nitrogen (TN), organic matter (SOM), pH as key factors driving changes results demonstrated that characteristics grasslands variations location, these findings are significant application restoration similar

Язык: Английский

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Decoupled response of aboveground and belowground ecosystem multifunctionality to shrub encroachment in a semiarid grassland

Journal of Environmental Management, Год журнала: 2025, Номер 379, С. 124827 - 124827

Опубликована: Март 6, 2025

Язык: Английский

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Linking rock outcrop size and distance to soil multifunctionality in mountain ecosystems

Functional Ecology, Год журнала: 2025, Номер unknown

Опубликована: Март 31, 2025

Abstract Rock outcrops, prevalent in mountain ecosystems worldwide, occupy space and exhibit distinct physical chemical properties compared with soil. Therefore, it is theorized that these significantly affect soil functions. However, previous studies have either overlooked rocks entirely or only considered the proportion of rock covered, leaving a gap understanding outcrops' distance size on ecological processes ecosystem To address this, we conducted field study to evaluate effects outcrops surrounding multifunctionality. A total 31 varying sizes were selected categorized into five diameter classes: 0–1 m, 1–2 2–3 3–4 m 4–5 m. Plant litter samples collected at two distances (0–20 cm 20–50 cm) capture direct influence while minimizing interference from broader environmental factors. Five functions assessed multifunctionality: nutrient provisioning, microbial growth efficiency, organic matter (SOM) decomposition, cycling plant‐microbe symbiosis. Our results suggested multifunctionality efficiency greater closer (approximately 17% 24% higher, respectively) than further (20–50 outcrops. Although plant increased increasing rocks, effect exhibited convex hump‐shaped curve. Soil around medium‐sized (i.e. 2–4 m) was approximately 40%–60% smaller m). Nutrient SOM decomposition showed similar trends. Further analysis exchangeable calcium carbon emerged as most important intermediary variables connecting Overall, near benefits extra resources such litter, rainfall, atmospheric deposition nutrients released weathering, which may directly contribute its high multifunctionality; however, excessively large hinder contributing Future surveys models should incorporate factors enhance assessment accuracy. Read free Plain Language Summary for this article Journal blog.

Язык: Английский

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Soil Acidification Destabilizes Terrestrial Ecosystems via Decoupling Soil Microbiome

Global Change Biology, Год журнала: 2025, Номер 31(4)

Опубликована: Апрель 1, 2025

Soil microbiome is essential for terrestrial ecosystem preservation. β-diversity information on the former, although dynamic due to its sensitivity environmental conditions driven by climate change, limited. Our knowledge becomes poorer microbiomes subjected gradients, especially those across multiple ecosystems-information important biological conservation management. In this study, using next generation sequencing and machine learning at samples from 207 locations among 4300 km of transects that spanned six typical ecosystems China, we established divergent distance-decay relationships between bacterial eukaryotic communities in response soil pH (pH as proxy edaphic conditions). The findings, pH-decrease results lower (convergent tendency) opposite ones (low pH-high (divergent tendency)). Meanwhile, competition bacteria eukaryotes intensifies while predominant genera are re-structured. Under these circumstances, potential acidification change or other factors could alter into decoupling directions influencing ecosystems' stability. Thus, a pivotal variable not only describes, but also controls, dynamics large scale under ongoing global changes; hence, cornerstone biodiversity China's nature protected areas only.

Язык: Английский

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Impact of bacterial inoculations on Pisum sativum L. biometric parameters and associated bacterial and AM fungal communities under semi-arid field conditions in Tunisia

Applied Soil Ecology, Год журнала: 2024, Номер 205, С. 105757 - 105757

Опубликована: Ноя. 25, 2024

Язык: Английский

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