Mixed evidence for plant–soil feedbacks in forest invasions

Wei, Wei; Zhu, Ping; Chen, Pengdong; Huang, Qiaoqiao; Bai, Xin; Ni, Guangyan; Hou, Yuping

doi:10.1007/s00442-020-04703-y

Cited by 14 publications

(7 citation statements)

References 56 publications

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“…This yielded 18 studies, which along with the studies from Crawford et al. ( 8 ) generated a total of 50 papers from which we extracted information ( 24 , 26 , 28 , 38 , 43 , 46 – 90 ). If a study had multiple experiments across different soil sources, resource gradients, or competition intensities, we compiled data separately for each experiment.…”

Section: Methodsmentioning

confidence: 99%

A quantitative synthesis of soil microbial effects on plant species coexistence

Yan

Levine

Kandlikar

2022

Proc. Natl. Acad. Sci. U.S.A.

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Significance Understanding the processes that maintain plant diversity is a key goal in ecology. Many previous studies have shown that soil microbes can generate stabilizing or destabilizing feedback loops that drive either plant species coexistence or monodominance. However, theory shows that microbial controls over plant coexistence also arise through microbially mediated competitive imbalances, which have been largely neglected. Using data from 50 studies, we found that soil microbes affect plant dynamics primarily by generating competitive fitness differences rather than stabilizing or destabilizing feedbacks. Consequently, in the absence of other competitive asymmetries among plants, soil microbes are predicted to drive species exclusion more than coexistence. These results underscore the need for measuring competitive fitness differences when evaluating microbial controls over plant coexistence.

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Section: Methodsmentioning

confidence: 99%

A quantitative synthesis of soil microbial effects on plant species coexistence

Yan

Levine

Kandlikar

2022

Proc. Natl. Acad. Sci. U.S.A.

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“…TP and TK were then determined using a spectrophotometer and a flame photometry detector, respectively (Tedersoo et al, 2015 ; Wu et al, 2019 ). AP content was determined using the sodium bicarbonate extraction–molybdenum‐antimony colorimetric method (Wei et al, 2020 ). AK content was determined using the ammonium acetate extraction–flame photometry method (Meng et al, 2022 ).…”

Section: Methodsmentioning

confidence: 99%

Changes in nitrogen and phosphorus availability driven by secondary succession in temperate forests shape soil fungal communities and function

Geng,

Zuo,

Meng

et al. 2023

Ecology and Evolution

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The soil fungal community plays an important role in forest ecosystems and is crucially influenced by forest secondary succession. However, the driving factors of fungal community and function during temperate forest succession and their potential impact on succession processes remain poorly understood. In this study, we investigated the dynamics of the soil fungal community in three temperate forest secondary successional stages (shrublands, coniferous forests, and deciduous broad‐leaved forests) using high‐throughput DNA sequencing coupled with functional prediction via the FUNGuild database. We found that fungal community richness, α‐diversity, and evenness decreased significantly during the succession process. Soil available phosphorus and nitrate nitrogen decreased significantly after initial succession occurred, and redundancy analysis showed that both were significant predictors of soil fungal community structure. Among functional groups, fungal saprotrophs and pathotrophs represented by plant pathogens were significantly enriched in the early‐successional stage, while fungal symbiotrophs represented by ectomycorrhiza were significantly increased in the late‐successional stage. The abundance of both saprotroph and pathotroph fungal guilds was positively correlated with soil nitrate nitrogen and available phosphorus content. Ectomycorrhizal fungi were negatively correlated with nitrate nitrogen and available phosphorus content and positively correlated with ammonium nitrogen content. These results indicate that the dynamics of fungal community and function reflected the changes in nitrogen and phosphorus availability caused by the secondary succession in temperate forests. The fungal plant pathogen accumulated in the early‐successional stage and ectomycorrhizal fungi accumulated in the late‐successional stage may have a potential role in promoting forest succession. These findings contribute to a better understanding of the response of soil fungal communities to secondary forest succession and highlight the importance of fungal communities during the successional process.

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“…The cultivation of Brassica napus had no significant effect on CAT activity but increased the activity of URE, SUC, and LAC and decreased the activity of A-PHO. Plants can alter nutrient cycling and energy metabolism by changing soil enzyme activity [38]. Moreover, soil enzyme activity is significantly and positively correlated with soil nutrient effectiveness [39].…”

Section: Discussionmentioning

confidence: 99%

Effects of planting of two common crops, Allium fistulosum and Brassica napus, on soil properties and microbial communities of ginseng cultivation in northeast China

Bian

Yang

et al. 2022

BMC Microbiol

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Background Long-term cultivation of ginseng can cause severe crop disorders and soil sickness. Crop rotation is an effective agricultural management measure to improve soil sustainability and decrease pathogens. However, the suitable ginseng rotation system and the changes in soil microbial community and soil characteristics under the rotation system need to be further explored. Methods To explore suitable ginseng crop rotation systems and improve soil utilization, Allium fistulosum and Brassica napus were planted on ginseng cultivation soil for one year. The effects of the two crops on the chemical properties and enzyme activities of the ginseng cultivation soil were evaluated by chemical analysis. In addition, amplicon sequencing targeting 16 s rDNA genes of bacteria and ITS of fungi has been used to characterize the functional and compositional diversity of microbial communities. Results The results elucidated that the levels of available phosphorus (AP) and available potassium (AK) in the soil increased significantly after one year of cultivation for both crops and Allium fistulosum cultivation may also have reduced soil salinity. In addition, the effects of the two crops on the activities of key soil enzymes were different. Catalase (CAT), urease (URE), and acid phosphatase (A-PHO) activities were significantly reduced and sucrase (SUC), and laccase (LAC) activities were significantly increased after Allium fistulosum planting. While A-PHO activity was significantly increased and LAC activity was significantly decreased after Brassica napus planting. Allium fistulosum significantly reduced the abundance of soil fungal communities. The cultivation of Allium fistulosum and Brassica napus significantly altered the composition of soil bacterial and fungal communities, where changes in the abundance of dominant microorganisms, such as Ascomycota, and Mortierellomycota, etc., were closely related to soil chemistry and enzyme activity. Moreover, both significantly reduced the abundance of the pathogenic fungus Ilyonectria. Conclusions Our study clarified the effects of Allium fistulosum and Brassica napus on the microbial community and physicochemical properties of ginseng cultivated soil and provides a basis for the sustainable application of ginseng cultivation soil and the development of ginseng crop rotation systems.

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Mixed evidence for plant–soil feedbacks in forest invasions

Cited by 14 publications

References 56 publications

A quantitative synthesis of soil microbial effects on plant species coexistence

A quantitative synthesis of soil microbial effects on plant species coexistence

Changes in nitrogen and phosphorus availability driven by secondary succession in temperate forests shape soil fungal communities and function

Effects of planting of two common crops, Allium fistulosum and Brassica napus, on soil properties and microbial communities of ginseng cultivation in northeast China

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