Distinct co-occurrence patterns and assembly processes of abundant and rare taxa under cadmium stress in volcanic areas

IF 5.4 1区 农林科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY
Qingchen Xiao , Boyan Wang , Ye Cui , Zishan Li , Xiaowan Geng , Keqing Lin , Xiaoyu Li , Jin Chen
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引用次数: 0

Abstract

Microorganisms play a crucial role in coping with environmental stresses such as heavy metals in terrestrial ecosystems. However, elucidating the environmental adaptations and ecological processes of abundant and rare taxa is a core but less known theme. The diversity, co-occurrence networks, and the assembly processes of abundant and rare taxa were compared and analyzed in volcanic soils. The findings indicated that the shannon and richness of rare taxa was generally higher than that of abundant taxa. Furthermore, compared with rare taxa, abundant taxa indicated greater stability and resistance. Co-occurrence patterns revealed that abundant taxa exhibited a higher number of interspecific interactions in response to cadmium (Cd) stress, and fungi and archaea generated higher modularity in high Cd environment. Additionally, the assembly process of abundant taxa in volcanic soils was mainly influenced by stochastic processes, whereas deterministic processes were increasingly enhanced in rare taxa. These findings provide value for understanding the assembly processes of bacteria, fungi, and archaea, and conduce to a deeper comprehension of the environmental adaptations exhibited by both abundant and rare taxa in extreme volcanic environments.

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来源期刊
Catena
Catena 环境科学-地球科学综合
CiteScore
10.50
自引率
9.70%
发文量
816
审稿时长
54 days
期刊介绍: Catena publishes papers describing original field and laboratory investigations and reviews on geoecology and landscape evolution with emphasis on interdisciplinary aspects of soil science, hydrology and geomorphology. It aims to disseminate new knowledge and foster better understanding of the physical environment, of evolutionary sequences that have resulted in past and current landscapes, and of the natural processes that are likely to determine the fate of our terrestrial environment. Papers within any one of the above topics are welcome provided they are of sufficiently wide interest and relevance.
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