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Shen K, He Y, Xia T, Guo Y, Wu B, Han X, Chen H, Zhao Y, Wu P, Liu Y. Arbuscular mycorrhizal fungi improve the competitive advantage of a native plant relative to a congeneric invasive plant in growth and nutrition. Ecol Evol 2024; 14:e11459. [PMID: 38774145 PMCID: PMC11106688 DOI: 10.1002/ece3.11459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 02/22/2024] [Accepted: 05/08/2024] [Indexed: 05/24/2024] Open
Abstract
Plant invasions severely threaten natural ecosystems, and invasive plants often outcompete native plants across various ecosystems. Arbuscular mycorrhizal (AM) fungi, serving as beneficial microorganisms for host plants, can greatly influence the competitive outcomes of invasive plants against native plants. However, it remains unclear how AM fungi alter the competitive balance between native and invasive species. A competitive experiment was conducted using an invasive Eupatorium adenophorum paired with a native congener Eupatorium lindleyanum. Specifically, both species were inoculated with (M+) or without (M-) the fungus Glomus etunicatum under intraspecific (Intra-) and interspecific (Inter-) competition. Plant traits were measured and analyzed regarding the growth and nutrition of both species. The results exhibited that the AM fungus significantly increased the height, diameter, biomass, C, N, and P acquisition of both the invasive E. adenophorum and the native E. lindleyanum. The root mycorrhizal colonization and the mycorrhizal dependency of native E. lindleyanum were greater than those of invasive E. adenophorum. Under M+, the Inter-competition inhibited the growth and nutrition of invasive E. adenophorum compared to the Intra- competition. Further, native E. lindleyanum exhibited higher competitiveness than invasive E. adenophorum in growth and nutrition. Meanwhile, the AM fungus significantly improved the competitiveness of native E. lindleyanum over invasive E. adenophorum. In conclusion, AM fungus improved the competitive advantage of native E. lindleyanum over invasive E. adenophorum in growth and nutrition, potentially contributing to native species competitively resisting the invasion of exotic species. These findings emphasize the importance of AM fungi in helping native plants resist the invasion of exotic plants and further contribute to understanding plant invasion prevention mechanisms.
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Affiliation(s)
- Kaiping Shen
- Forestry College, Research Center of Forest EcologyGuizhou UniversityGuiyangChina
| | - Yuejun He
- Forestry College, Research Center of Forest EcologyGuizhou UniversityGuiyangChina
| | - Tingting Xia
- Forestry College, Research Center of Forest EcologyGuizhou UniversityGuiyangChina
| | - Yun Guo
- Forestry College, Research Center of Forest EcologyGuizhou UniversityGuiyangChina
- College of Eco‐Environmental EngineeringGuizhou Minzu UniversityGuiyangChina
| | - Bangli Wu
- Forestry College, Research Center of Forest EcologyGuizhou UniversityGuiyangChina
| | - Xu Han
- Forestry College, Research Center of Forest EcologyGuizhou UniversityGuiyangChina
| | - Hongchun Chen
- College of Resources and Environmental EngineeringGuizhou UniversityGuiyangChina
- Guizhou Provincial Water Conservancy Research InstituteGuiyangChina
| | - Yan Zhao
- College of Resources and Environmental EngineeringGuizhou UniversityGuiyangChina
| | - Pan Wu
- College of Resources and Environmental EngineeringGuizhou UniversityGuiyangChina
| | - Yuan Liu
- College of Life ScienceGuizhou UniversityGuiyangChina
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Maitra P, Hrynkiewicz K, Szuba A, Jagodziński AM, Al-Rashid J, Mandal D, Mucha J. Metabolic niches in the rhizosphere microbiome: dependence on soil horizons, root traits and climate variables in forest ecosystems. FRONTIERS IN PLANT SCIENCE 2024; 15:1344205. [PMID: 38645395 PMCID: PMC11026606 DOI: 10.3389/fpls.2024.1344205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 03/18/2024] [Indexed: 04/23/2024]
Abstract
Understanding belowground plant-microbial interactions is important for biodiversity maintenance, community assembly and ecosystem functioning of forest ecosystems. Consequently, a large number of studies were conducted on root and microbial interactions, especially in the context of precipitation and temperature gradients under global climate change scenarios. Forests ecosystems have high biodiversity of plants and associated microbes, and contribute to major primary productivity of terrestrial ecosystems. However, the impact of root metabolites/exudates and root traits on soil microbial functional groups along these climate gradients is poorly described in these forest ecosystems. The plant root system exhibits differentiated exudation profiles and considerable trait plasticity in terms of root morphological/phenotypic traits, which can cause shifts in microbial abundance and diversity. The root metabolites composed of primary and secondary metabolites and volatile organic compounds that have diverse roles in appealing to and preventing distinct microbial strains, thus benefit plant fitness and growth, and tolerance to abiotic stresses such as drought. Climatic factors significantly alter the quantity and quality of metabolites that forest trees secrete into the soil. Thus, the heterogeneities in the rhizosphere due to different climate drivers generate ecological niches for various microbial assemblages to foster beneficial rhizospheric interactions in the forest ecosystems. However, the root exudations and microbial diversity in forest trees vary across different soil layers due to alterations in root system architecture, soil moisture, temperature, and nutrient stoichiometry. Changes in root system architecture or traits, e.g. root tissue density (RTD), specific root length (SRL), and specific root area (SRA), impact the root exudation profile and amount released into the soil and thus influence the abundance and diversity of different functional guilds of microbes. Here, we review the current knowledge about root morphological and functional (root exudation) trait changes that affect microbial interactions along drought and temperature gradients. This review aims to clarify how forest trees adapt to challenging environments by leveraging their root traits to interact beneficially with microbes. Understanding these strategies is vital for comprehending plant adaptation under global climate change, with significant implications for future research in plant biodiversity conservation, particularly within forest ecosystems.
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Affiliation(s)
- Pulak Maitra
- Institute of Dendrology, Polish Academy of Sciences, Kórnik, Poland
| | - Katarzyna Hrynkiewicz
- Department of Microbiology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Toruń, Poland
| | - Agnieszka Szuba
- Institute of Dendrology, Polish Academy of Sciences, Kórnik, Poland
| | - Andrzej M. Jagodziński
- Institute of Dendrology, Polish Academy of Sciences, Kórnik, Poland
- Department of Game Management and Forest Protection, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Poznań, Poland
| | - Jubair Al-Rashid
- Tianjin Institute of Industrial Biotechnology, University of Chinese Academy of Sciences, Tianjin, China
| | - Dipa Mandal
- Institute of Microbiology, University of Chinese Academy of Sciences, Beijing, China
| | - Joanna Mucha
- Institute of Dendrology, Polish Academy of Sciences, Kórnik, Poland
- Department of Forest Entomology and Pathology, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Poznań, Poland
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Liu G, Liu R, Lee BR, Song X, Zhang W, Zhu Z, Shi Y. The Invasion of Galinsoga quadriradiata into High Elevations Is Shaped by Variation in AMF Communities. PLANTS (BASEL, SWITZERLAND) 2023; 12:3190. [PMID: 37765354 PMCID: PMC10534310 DOI: 10.3390/plants12183190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/30/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
Mountain ranges have been previously suggested to act as natural barriers to plant invasion due to extreme environmental conditions. However, how arbuscular mycorrhizal fungi (AMF) affect invasion into these systems has been less explored. Here, we investigated how changes in AMF communities affect the performance of Galinsoga quadriradiata in mountain ranges. We performed a greenhouse experiment to study the impact of inoculations of AMF from different elevations on the performance and reproduction of invaders and how competition with native plants changes the effects of invader-AMF interactions. We found strong evidence for a nuanced role of AMF associations in the invasion trajectory of G. quadriradiata, with facilitative effects at low elevations and inhibitory effects at high elevations. Galinsoga quadriradiata performed best when grown with inoculum collected from the same elevation but performed worst when grown with inoculum collected from beyond its currently invaded range, suggesting that AMF communities can help deter invasion at high elevations. Finally, the invasive plants grown alone experienced negative effects from AMF, while those grown in competition experienced positive effects, regardless of the AMF source. This suggests that G. quadriradiata lowers its partnerships with AMF in stressful environments unless native plants are present, in which case it overpowers native plants to obtain AMF support during invasion. Finally, our results indicate that invader-AMF interactions can inhibit invasive range expansion at high elevations, and biotic interactions, in addition to harsh environmental conditions, make high-elevation mountain ranges natural barriers against continued invasion.
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Affiliation(s)
- Gang Liu
- College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (R.L.); (X.S.); (W.Z.); (Z.Z.); (Y.S.)
- Research Center for UAV Remote Sensing, Shaanxi Normal University, Xi’an 710119, China
- Changqing Teaching & Research Base of Ecology, Shaanxi Normal University, Xi’an 710119, China
| | - Ruiling Liu
- College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (R.L.); (X.S.); (W.Z.); (Z.Z.); (Y.S.)
| | - Benjamin R. Lee
- Carnegie Museum of Natural History, Pittsburgh, PA 15213, USA;
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Holden Forest and Gardens, Kirtland, OH 44094, USA
| | - Xingjiang Song
- College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (R.L.); (X.S.); (W.Z.); (Z.Z.); (Y.S.)
| | - Wengang Zhang
- College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (R.L.); (X.S.); (W.Z.); (Z.Z.); (Y.S.)
| | - Zhihong Zhu
- College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (R.L.); (X.S.); (W.Z.); (Z.Z.); (Y.S.)
- Research Center for UAV Remote Sensing, Shaanxi Normal University, Xi’an 710119, China
- Changqing Teaching & Research Base of Ecology, Shaanxi Normal University, Xi’an 710119, China
| | - Yan Shi
- College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China; (R.L.); (X.S.); (W.Z.); (Z.Z.); (Y.S.)
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Hu D, Khan IU, Wang J, Shi X, Jiang X, Qi S, Dai Z, Mao H, Du D. Invasive Wedelia trilobata Performs Better Than Its Native Congener in Various Forms of Phosphorous in Different Growth Stages. PLANTS (BASEL, SWITZERLAND) 2023; 12:3051. [PMID: 37687298 PMCID: PMC10490449 DOI: 10.3390/plants12173051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/10/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023]
Abstract
At present, many hypotheses have been proposed to explain the mechanism of alien plants' successful invasion; the resource fluctuations hypothesis indicates that nutrient availability is a main abiotic factor driving the invasion of alien plants. Higher phosphorus utilization and absorption efficiency might be one of the important reasons for alien plants successful invasion. Wedelia trilobata, one of the notorious invasive weeds in China, possesses a strong ability to continue their development under infertile habitats. In this study, firstly, W. trilobata and its native congener, W. chinensis, were grown in various phosphorus forms to test their absorption efficiency of phosphorus. Secondly, the different responses of W. trilobata and W. chinensis to the insoluble phosphorus in three growth stages (at 30, 60, and 150 days cultivation) were also tested. The results showed that the growth rate, root morphology, and phosphorus absorption efficiency of W. trilobata under various insoluble, organic, or low phosphorus conditions were significantly higher than that of W. chinensis. During the short-term cultivation period (30 d), the growth of W. trilobata under insoluble and low phosphorus treatments had no significant difference, and the growth of W. trilobata in insoluble phosphorus treatment also had no significant effect in long-term cultivation (60 and 150 d). However, the growth of W. chinensis in each period under the conditions of insoluble and low phosphorus was significantly inhibited throughout these three growth stages. Therefore, invasive W. trilobata had a higher phosphorus utilization efficiency than its native congener. This study could explain how invasive W. trilobata performs under nutrient-poor habitats, while also providing favorable evidence for the resource fluctuations hypothesis.
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Affiliation(s)
- Die Hu
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (D.H.); (J.W.); (X.J.); (H.M.)
| | - Irfan Ullah Khan
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (I.U.K.); (X.S.); (Z.D.); (D.D.)
| | - Jiahao Wang
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (D.H.); (J.W.); (X.J.); (H.M.)
| | - Xinning Shi
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (I.U.K.); (X.S.); (Z.D.); (D.D.)
| | - Xinqi Jiang
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (D.H.); (J.W.); (X.J.); (H.M.)
| | - Shanshan Qi
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (D.H.); (J.W.); (X.J.); (H.M.)
| | - Zhicong Dai
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (I.U.K.); (X.S.); (Z.D.); (D.D.)
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Hanping Mao
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (D.H.); (J.W.); (X.J.); (H.M.)
| | - Daolin Du
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (I.U.K.); (X.S.); (Z.D.); (D.D.)
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Guo Y, Shen K, Xia T, He Y, Ren W, Wu P, Lin Y, Wu B, Han X, Gao L, Li J, Hu X, Wang L, Jiao M, Yan J, Yang X, Yu H, Zhang J. The interspecific competition of tree plants in the presence of AM fungi and litter facilitates root morphological development and nutrition when compared with intraspecific competition. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:80496-80511. [PMID: 37300731 DOI: 10.1007/s11356-023-28119-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023]
Abstract
Arbuscular mycorrhizal (AM) fungi can affect plant growth by regulating competition. Nutrient-deficient karst habitats contain abundant plants that compete for nutrients through interspecific or intraspecific competition, involving the nutritional transformation of litter decomposition. However, how plant competition in the presence of AM fungi and litter affects root development and nutrition remains unclear. A potted experiment was conducted, including AM fungus treatment with or without Glomus etunicatum, the competition treatment concerning intraspecific or interspecific competition through planting Broussonetia papyrifera and Carpinus pubescens seedlings, and the litter treatment with or without the mixture of B. papyrifera and C. pubescens litter leaves. The root morphological traits were analyzed, and nitrogen (N), phosphorus (P), and potassium (K) were measured. The results showed that AM fungus differently affected the root morphological development and nutrition of both competitive plants, significantly promoting B. papyrifera roots in the increase of dry weight, length, volume, surface area, tips, and branches as well as N, P, and K acquisitions regardless of litter addition. However, there was no apparent influence for C. pubescens roots, except for the diameter in the interspecific competition with litter. The root dry weight, length, volume, surface area, and tips of B. papyrifera under two competitive styles were significantly greater than C. pubescens regulated by AM fungus, presenting significant species differences. The responses of the relative competition intensity (RCI) on root morphological and nutritional traits indicated that AM fungus and litter both asymmetrically alleviated more competitive pressure for B. papyrifera than C. pubescens, and the interspecific competition facilitated more root morphological development and nutrition utilization by endowing B. papyrifera root superiority relative to C. pubescens compared with the intraspecific competition. In conclusion, interspecific competition is more beneficial for plant root development and nutrition than intraspecific competition in the presence of AM fungus and litter via asymmetrically alleviating competitive pressure for different plants.
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Affiliation(s)
- Yun Guo
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
- College of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang, 550025, China
| | - Kaiping Shen
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Tingting Xia
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Yuejun He
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China.
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang, 550025, China.
| | - Wenda Ren
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Pan Wu
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Yan Lin
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Bangli Wu
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Xu Han
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Lu Gao
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Jinting Li
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Xiaorun Hu
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Li Wang
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Min Jiao
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Jiawei Yan
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Xionggui Yang
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Hangcheng Yu
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
| | - Jingkun Zhang
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, 550025, China
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Du E, Chen Y, Li Y, Li Y, Sun Z, Hao R, Gui F. Effects of Septoglomus constrictum and Bacillus cereus on the competitive growth of Ageratina adenophora. Front Microbiol 2023; 14:1131797. [PMID: 37333653 PMCID: PMC10272390 DOI: 10.3389/fmicb.2023.1131797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 05/15/2023] [Indexed: 06/20/2023] Open
Abstract
Beneficial microorganisms play a pivotal role in the invasion process of exotic plants, including arbuscular mycorrhizal fungi (AMF) and Bacillus. However, limited research exists on the synergistic influence of AMF and Bacillus on the competition between both invasive and native plants. In this study, pot cultures of Ageratina adenophora monoculture, Rabdosia amethystoides monoculture, and A. adenophora and R. amethystoides mixture were used to investigate the effects of dominant AMF (Septoglomus constrictum, SC) and Bacillus cereus (BC), and the co-inoculation of BC and SC on the competitive growth of A. adenophora. The results showed that inoculation with BC, SC, and BC + SC significantly increased the biomass of A. adenophora by 14.77, 112.07, and 197.74%, respectively, in the competitive growth between A. adenophora and R. amethystoides. Additionally, inoculation with BC increased the biomass of R. amethystoides by 185.07%, while inoculation with SC or BC + SC decreased R. amethystoides biomass by 37.31 and 59.70% compared to the uninoculated treatment. Inoculation with BC significantly increased the nutrient contents in the rhizosphere soil of both plants and promoted their growth. Inoculation with SC or SC + BC notably increased the nitrogen and phosphorus contents of A. adenophora, therefore enhancing its competitiveness. Compared with single inoculation, dual inoculation with SC and BC increased AMF colonization rate and Bacillus density, indicating that SC and BC can form a synergistic effect to further enhance the growth and competitiveness of A. adenophora. This study reveals the distinct role of S. constrictum and B. cereus during the invasion of A. adenophora, and provide new clues to the underlying mechanisms of interaction between invasive plant, AMF and Bacillus.
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Affiliation(s)
- Ewei Du
- State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Yaping Chen
- State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Yang Li
- Graduate School, Yunnan Agricultural University, Kunming, China
| | - Yahong Li
- Yunnan Plant Protection and Quarantine Station, Kunming, China
| | - Zhongxiang Sun
- State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Ruoshi Hao
- Yunnan Plateau Characteristic Agriculture Industry Research Institute, Kunming, China
| | - Furong Gui
- State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Graduate School, Yunnan Agricultural University, Kunming, China
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Yang X, Shen K, Xia T, He Y, Guo Y, Wu B, Han X, Yan J, Jiao M. Invasive and Native Plants Differentially Respond to Exogenous Phosphorus Addition in Root Growth and Nutrition Regulated by Arbuscular Mycorrhizal Fungi. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112195. [PMID: 37299174 DOI: 10.3390/plants12112195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/19/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
Plant invasion has severely damaged ecosystem stability and species diversity worldwide. The cooperation between arbuscular mycorrhizal fungi (AMF) and plant roots is often affected by changes in the external environment. Exogenous phosphorus (P) addition can alter the root absorption of soil resources, thus regulating the root growth and development of exotic and native plants. However, it remains unclear how exogenous P addition regulates the root growth and development of exotic and native plants mediated by AMF, affecting the exotic plant invasion. In this experiment, the invasive plant Eupatorium adenophorum and native plant Eupatorium lindleyanum were selected and cultured under intraspecific (Intra-) competition and interspecific (Inter-) competition conditions, involving inoculation with (M+) and without AMF (M-) and three different levels of P addition including no addition (P0), addition with 15 mg P kg-1 soil (P15), and addition with 25 mg P kg-1 soil (P25) for the two species. Root traits of the two species were analyzed to study the response of the two species' roots to AMF inoculation and P addition. The results showed that AMF significantly promoted the root biomass, length, surface area, volume, tips, branching points, and carbon (C), nitrogen (N), and P accumulation of the two species. Under M+ treatment, the Inter- competition decreased the root growth and nutrient accumulation of invasive E. adenophorum but increased the root growth and nutrient accumulation of native E. lindleyanum relative to the Intra- competition. Meanwhile, the exotic and native plants responded differently to P addition, exhibiting root growth and nutrient accumulation of invasive E. adenophorum increased with P addition, whereas native E. lindleyanum reduced with P addition. Further, the root growth and nutrition accumulation of native E. lindleyanum were higher than invasive E. adenophorum under Inter- competition. In conclusion, exogenous P addition promoted the invasive plant but reduced the native plant in root growth and nutrient accumulation regulated by AMF, although the native plant outcompeted the invasive plant when the two species competed. The findings provide a critical perspective that the anthropogenic P fertilizer addition might potentially contribute to the successful invasion of exotic plants.
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Affiliation(s)
- Xionggui Yang
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, China
| | - Kaiping Shen
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, China
| | - Tingting Xia
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, China
| | - Yuejun He
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, China
| | - Yun Guo
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, China
- College of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang 550025, China
| | - Bangli Wu
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, China
| | - Xu Han
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, China
| | - Jiawei Yan
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, China
| | - Min Jiao
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, China
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Ab Razak N, Gange AC, Sutton BC, Mansor A. The Invasive Plant Impatiens glandulifera Manipulates Microbial Associates of Competing Native Species. PLANTS (BASEL, SWITZERLAND) 2023; 12:1552. [PMID: 37050178 PMCID: PMC10096542 DOI: 10.3390/plants12071552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
Impatiens glandulifera or Himalayan balsam is one of the most invasive weeds across Europe and can seriously reduce native plant diversity. It often forms continuous monocultures along river banks, but the mechanisms of this arrested succession are largely unknown. Here, we investigated the effect of arbuscular mycorrhizal (AM) fungi on balsam competitive ability with two native plant species, Plantago lanceolata and Holcus lanatus. We also studied how competition with Impatiens affects colonisation by foliar endophytes and mycorrhizas of two other co-occurring native species, Urtica dioica and Cirsium arvense. Mycorrhizal colonisation reduced balsam growth when the plants were grown singly, but appeared to have little effect when balsam experienced intra- or interspecific competition. Competition with balsam together with the addition of mycorrhizas had no effect on P. lanceolata biomass, suggesting that the fungi were beneficial to the latter, enabling it to compete effectively with balsam. However, this was not so with H. lanatus. Meanwhile, competition with Impatiens reduced endophyte numbers and mycorrhizal colonisation in U. dioica and C. arvense, leading to enhanced susceptibility of these plants to insect attack. Himalayan balsam is known to degrade soil fungal populations and can also reduce foliar beneficial fungi in neighbouring plants. This allows the plant to compete effectively with itself and other native species, thereby leading to the continuous monocultures.
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Affiliation(s)
- Nadia Ab Razak
- Centre for Chemical Biology, Sains@USM, Universiti Sains Malaysia, Pulau Pinang 11900, Malaysia
| | - Alan C. Gange
- Department of Biological Sciences, Royal Holloway University of London, Egham TW20 0EX, Surrey, UK; (A.C.G.); (B.C.S.)
| | - Brian C. Sutton
- Department of Biological Sciences, Royal Holloway University of London, Egham TW20 0EX, Surrey, UK; (A.C.G.); (B.C.S.)
| | - Asyraf Mansor
- School of Biological Sciences, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
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Wang L, Chen X, Yan X, Wang C, Guan P, Tang Z. A response of biomass and nutrient allocation to the combined effects of soil nutrient, arbuscular mycorrhizal, and root-knot nematode in cherry tomato. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2023.1106122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
IntroductionThe biomass and nutrient allocation strategies in plants are fundamental for predicting carbon storage and mineral and nutrient cycles in terrestrial ecosystems. However, our knowledge regarding the effects of multiple environmental factors on biomass and nutrient allocation remains limited.MethodsHere we manipulated soil composition (three levels), arbuscular mycorrhizal fungi inoculation (AMF, five levels), and root-knot nematode inoculation (RKN, two levels) using random block design to reveal the effects of these factors on biomass and nutrient allocation strategies of cherry tomato.Results and DiscussionOur results showed that biomass and nutrient allocation were affected by soil composition, AMF and RKN individually or interactively. The biomass and nutrient allocation in cherry tomato shows different adaptation strategies responded to the joint action of three factors. The reduction of soil nutrients increased belowground biomass allocation, and aboveground nitrogen and phosphorus concentration. AMF colonization increased aboveground biomass allocation and reproductive investment and promoted aboveground nitrogen and phosphorus inputs. Cherry tomato can mitigate the stress of RKN infection by investing more biomass and nutrients into belowground organs. Our study showed that plants can adjust their survival strategies by changing biomass and nutrient allocation to adapt to variation in soil abiotic and biotic factors. These findings contribute to our understanding of the adaptive processes of plant biomass and nutrient allocation strategies under multiple environmental factors.
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Sun D, Yang X, Wang Y, Fan Y, Ding P, Song X, Yuan X, Yang X. Stronger mutualistic interactions with arbuscular mycorrhizal fungi help Asteraceae invaders outcompete the phylogenetically related natives. THE NEW PHYTOLOGIST 2022; 236:1487-1496. [PMID: 35975696 DOI: 10.1111/nph.18435] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Mutualistic interactions with arbuscular mycorrhizal fungi (AMF) greatly affect the outcome of plant-plant competition, especially for invasive plants competing against native plants. We examined the effects of AMF on the competition between invasive Asteraceae plants and the phylogenetically related native plants. We compared the performance of seven invasive Asteraceae plants from different genera with that of their phylogenetically related native counterparts in response to AMF in monocultures and mixed cultures. We investigated how interactions with AMF impact the competition between Asteraceae relatives. Total biomass increased with AMF colonization in both invasive and native plants. Arbuscular mycorrhizal fungi improved the competitiveness of invasive plants, but decreased that of native plants. Competition increased the shoot nitrogen, phosphorus and root myristic acid concentrations and relative expression of fatty acid transporter genes (RiFAT1 and RiFAT2) in AMF-colonized invasive plants, but decreased those in AMF-colonized native plants. Structural equation models indicated that the presence of AMF increased the uptake of phosphorus, but not nitrogen, by invasive plants, which probably provided more myristic acids to symbiotic AMF in return. These results suggest that invasive Asteraceae plants have greater mutualistic interactions with AMF than their phylogenetically related native counterparts, potentially contributing to invasion success.
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Affiliation(s)
- Dasheng Sun
- College of Resources and Environment, Shanxi Agricultural University, Taigu, 030801, China
| | - Xueping Yang
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
| | - Yi Wang
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology and Centre for Invasion Biology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming, 650504, China
| | - Yu Fan
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
| | - Pengcheng Ding
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
| | - Xi'E Song
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
| | - Xiangyang Yuan
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
| | - Xuefang Yang
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
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Shen K, He Y, Xu X, Umer M, Liu X, Xia T, Guo Y, Wu B, Xu H, Zang L, Gao L, Jiao M, Yang X, Yan J. Effects of AMF on plant nutrition and growth depend on substrate gravel content and patchiness in the karst species Bidens pilosa L. FRONTIERS IN PLANT SCIENCE 2022; 13:968719. [PMID: 36247600 PMCID: PMC9557229 DOI: 10.3389/fpls.2022.968719] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/05/2022] [Indexed: 06/16/2023]
Abstract
Karst ecosystems represent a typical heterogeneous habitat, and it is ubiquitous with varying interactive patches of rock and soil associated with differential weathering patterns of carbonate rocks. Arbuscular mycorrhizae fungi (AMF) play an important role in regulating plant growth and nutrition in heterogeneous karst habitats. However, it remains unclear how AMF affects the growth and nutrition of plants in heterogeneous karst soil with varying patches and weathering gravel. A heterogeneous experiment with Bidens pilosa L. was conducted in a grid microcosm through patching karst soil with different gravel contents. The experimental treatments included the AMF treatments inoculated with (M+) or without (M-) fungus Glomus etunicatum; the substrate patchiness treatments involved different sizes of the homogeneous patch (Homo), the heterogeneous large patch (Hetl), and the heterogeneous small patch (Hets); the substrate gravel treatments in the inner patch involved the free gravel (FG), the low gravel (LG) 20% in 80% soil, and the high gravel (HG) 40% in 60% soil. Plant traits related to growth and nutrients were analyzed by comparing substrate gravel content and patch size. The results showed that AMF was more beneficial in increasing the aboveground biomass of B. pilosa under the LG and HG substrates with a higher root mycorrhizal colonization rate than under the FG substrate with a lower root mycorrhizal colonization rate. AMF enhanced higher growth and nutrients for B. pilosa under the LG and HG substrates than under the FG substrate and under the Hets than under the Hetl. Moreover, AMF alleviated the limited supply of N for B. pilosa under all heterogeneous treatments. Furthermore, the response ratio LnRR of B. pilosa presented that the substrate gravel promoted the highest growth, N and P absorption than the substrate patchiness with M+ treatment, and the gravel content had a more effect on plant growth and nutrition as compared to the patch size. Overall, this study suggests that plant growth and nutrition regulated by AMF mainly depend on the substrate gravel content rather than the spatial patchiness in the heterogeneous karst habitat.
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Affiliation(s)
- Kaiping Shen
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Yuejun He
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Xinyang Xu
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Muhammad Umer
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Xiao Liu
- Forestry Survey and Planning Institute of Guizhou Province, Guiyang, China
| | - Tingting Xia
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Yun Guo
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
- College of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang, China
| | - Bangli Wu
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Han Xu
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Lipeng Zang
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Lu Gao
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Min Jiao
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Xionggui Yang
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Jiawei Yan
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
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12
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Yu HW, He WM. Arbuscular Mycorrhizal Fungi Compete Asymmetrically for Amino Acids with Native and Invasive Solidago. MICROBIAL ECOLOGY 2022; 84:131-140. [PMID: 34406446 DOI: 10.1007/s00248-021-01841-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF) and soil amino acids both affect plant performance. However, little is known about how AMF compete for amino acids with native and invasive congeners. We conducted a factorial experiment (inoculation, native and invasive species, and amino acids) to examine the competition for amino acids between soil microbes and both native and invasive congeners. The competition for amino acids between AMF and invasive Solidago canadensis was weaker than that observed between AMF and native S. decurrens. This asymmetric competition increased the growth advantage of S. canadensis over S. decurrens. The efficacy (biomass production per unit of nitrogen supply) of amino acids compared to ammonium was smaller in S. canadensis than in S. decurrens when both species were grown without inoculation, but the opposite was the case when both species were grown with AMF. AMF and all microbes differentially altered four phenotypic traits (plant height, leaf chlorophyll content, leaf number, and root biomass allocation) and the pathways determining the effects of amino acids on growth advantages. These findings suggest that AMF could enhance plant invasiveness through asymmetric competition for amino acids and that amino acid-driven invasiveness might be differentially regulated by different microbial guilds.
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Affiliation(s)
- Hong-Wei Yu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Wei-Ming He
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
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13
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Indigenous microorganisms offset the benefits of growth and nutrition regulated by inoculated arbuscular mycorrhizal fungi for four pioneer herbs in karst soil. PLoS One 2022; 17:e0266526. [PMID: 35468152 PMCID: PMC9037916 DOI: 10.1371/journal.pone.0266526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/22/2022] [Indexed: 12/04/2022] Open
Abstract
Arbuscular mycorrhizal (AM) fungi, as beneficial soil microorganisms, inevitably interact with indigenous microorganisms, regulating plant growth and nutrient utilization in natural habitats. However, how indigenous microorganisms affect the benefits of growth and nutrition regulated by inoculated AM fungi for plants in karst ecosystem habitats remains unclear today. In this experiment, the Gramineae species Setaria viridis vs. Arthraxon hispidus and the Compositae species Bidens pilosa vs. Bidens tripartita exist in the initial succession stage of the karst ecosystem. These plant species were planted into different soil microbial conditions, including AM fungi soil (AMF), AM fungi interacting with indigenous microorganisms soil (AMI), and a control soil without AM fungi and indigenous microorganisms (CK). The plant biomass, nitrogen (N), and phosphorus (P) were measured; the effect size of different treatments on these variables of plant biomass and N and P were simultaneously calculated to assess plant responses. The results showed that AMF treatment differently enhanced plant biomass accumulation, N, and P absorption in all species but reduced the N/P ratio. The AMI treatment also significantly increased plant biomass, N and P, except for the S. viridis seedlings. However, regarding the effect size, the AM fungi effect on plant growth and nutrition was greater than the interactive effect of AM fungi with indigenous microorganisms. It indicates that the indigenous microorganisms offset the AM benefits for the host plant. In conclusion, we suggest that the indigenous microorganisms offset the benefits of inoculated AM fungi in biomass and nutrient accumulation for pioneer plants in the karst habitat.
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Qi S, Wang J, Wan L, Dai Z, da Silva Matos DM, Du D, Egan S, Bonser SP, Thomas T, Moles AT. Arbuscular Mycorrhizal Fungi Contribute to Phosphorous Uptake and Allocation Strategies of Solidago canadensis in a Phosphorous-Deficient Environment. FRONTIERS IN PLANT SCIENCE 2022; 13:831654. [PMID: 35401639 PMCID: PMC8987128 DOI: 10.3389/fpls.2022.831654] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/21/2022] [Indexed: 05/17/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF) can facilitate the uptake of limiting or inaccessible nutrients by plants. However, the importance of AMF for invasive plants under phosphorus (P) limitation is poorly well understood because of the presence of non-focal microorganisms, such as endophytes or rhizosphere bacteria. In this study, we investigated how an invasive clonal plant Solidago canadensis benefits from the AMF Glomus intraradices by using a completely sterile culturing system, which is composed of aseptic seedlings, a pure AMF strain, and a sterile growth environment. We found that the colonization rate, abundance, and spore production of AMF in the insoluble P treatment was more than twice as much as in the available P treatment. Plant above-ground growth was enhanced almost 50% by AMF in the insoluble P treatment. Importantly, AMF were able to facilitate P acquisition by the plant in insoluble P conditions, allowing plants to have lower investment into below-ground biomass and higher benefit/return for above-ground biomass. This study demonstrated the important contribution that AMF make to plants in phosphate-deficient environments eliminating interference from non-focal microorganisms. Our results also suggest that interaction with AMF could contribute to the invasiveness of clonal plant S. canadensis in a resource-deficient environment.
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Affiliation(s)
- Shanshan Qi
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
- School of the Environment Safety Engineering, Jiangsu University, Zhenjiang, China
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, NSW, Australia
| | - Jiahao Wang
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
| | - Lingyun Wan
- Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Zhicong Dai
- School of the Environment Safety Engineering, Jiangsu University, Zhenjiang, China
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, NSW, Australia
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, China
| | | | - Daolin Du
- School of the Environment Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Suhelen Egan
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, NSW, Australia
| | - Stephen P. Bonser
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, NSW, Australia
| | - Torsten Thomas
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, NSW, Australia
| | - Angela T. Moles
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, NSW, Australia
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15
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Ren W, Guo Y, Han X, Sun Y, Li Q, Wu B, Xia T, Shen K, Wu P, He Y. Indigenous Microorganisms Offset Arbuscular Mycorrhizal Fungi-Induced Plant Growth and Nutrient Acquisition Through Negatively Modulating the Genes of Phosphorus Transport and Nitrogen Assimilation. FRONTIERS IN PLANT SCIENCE 2022; 13:880181. [PMID: 35615141 PMCID: PMC9125159 DOI: 10.3389/fpls.2022.880181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/18/2022] [Indexed: 05/06/2023]
Abstract
Arbuscular mycorrhizal (AM) fungi that promote plant growth and nutrient acquisition are essential for nutrient-deficient karst areas, while they inevitably regulate host plants jointly with indigenous microorganisms in natural soil. However, how indigenous microorganisms regulate AM-induced benefits on plant growth and nutrient acquisition remains unclear. In this study, the Bidens tripartita as the common plant species in the karst region was cultivated into three soil substrates treated by AM fungi inoculation (AMF), AM fungi inoculation combining with indigenous microorganisms (AMI), and the control without AM fungi and indigenous microorganisms (CK). The plant biomass and concentration of nitrogen (N) and phosphorus (P) were measured, and the transcriptomic analysis was carried out using root tissues. The results showed that AM fungi significantly enhanced the plant biomass, N, and P accumulation with the reduction of plants' N/P ratio; however, the indigenous microorganisms offset the AM-induced benefits in biomass and N and P acquisition. In addition, there are 819 genes in differentially expressed genes (DEGs) of AMF vs. AMI ∩ AMF vs. CK, meaning that AM fungi induced these genes that were simultaneously regulated by indigenous microorganisms. Furthermore, the enrichment analysis suggested that these genes were significantly associated with the metabolic processes of organophosphate, P, sulfur, N, and arginine biosynthesis. Notably, 34 and 17 genes of DEGs were related to P and N metabolism, respectively. Moreover, the indigenous microorganisms significantly downregulated these DEGs, especially those encoding the PHO1 P transporters and the glnA, glutamate dehydrogenase 2 (GDH2), and urease as key enzymes in N assimilation; however, the indigenous microorganisms significantly upregulated genes encoding PHO84 inducing cellular response to phosphate (Pi) starvation. These regulations indicated that indigenous microorganisms restrained the N and P metabolism induced by AM fungi. In conclusion, we suggested that indigenous microorganisms offset nutrient benefits of AM fungi for host plants through regulating these genes related to P transport and N assimilation.
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Affiliation(s)
- Wenda Ren
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Yun Guo
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Xu Han
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Yan Sun
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Qing Li
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Bangli Wu
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Tingting Xia
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Kaiping Shen
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Pan Wu
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang, China
| | - Yuejun He
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
- *Correspondence: Yuejun He,
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16
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Tan Q, Si J, He Y, Yang Y, Shen K, Xia T, Kang L, Fang Z, Wu B, Guo Y, Han X. Improvement of karst soil nutrients by arbuscular mycorrhizal fungi through promoting nutrient release from the litter. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 23:1244-1254. [PMID: 33682536 DOI: 10.1080/15226514.2021.1889966] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
How arbuscular mycorrhizal (AM) fungi affect litter nutrient release and soil properties in the nutrient-deficient karst soil, is unclear. An experiment was conducted in this study using a dual compartment device composed of a planting compartment (for the Cinnamomum camphora seedlings with or without Funneliformis mosseae fungus) and a litter compartment (with or without the litter of Arthraxon hispidus). The center baffle between the compartments was covered with a double layer of 20-µm or 0.45-µm nylon mesh, which controlled the entrance of AM mycelium into the litter compartment. The results are as follows: AM mycelium significantly increased the mass loss and carbon and nitrogen releases and decreased the nitrogen concentration in the litter. AM mycelium could significantly increase soil organic carbon, total nitrogen and availability of phosphorus during litter decomposition in the litter compartment. Redundancy analysis showed that the effect of AM mycelium on the soil organic carbon, total nitrogen in the litter compartment was closely associated with the increase in carbon and nitrogen release from litter. It was concluded that AM mycelium can enhance litter decomposition and nutrient releases, contributing to greater nutrient input to the soil and then subsequently higher soil organic carbon and nutrient content in the nutrient-poor karst soils. STATEMENT OF NOVELTYThis study firstly estimated the impacts of arbuscular mycorrhizal fungi on litter nutrient releases and soil properties through root external mycelium.
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Affiliation(s)
- Qiyu Tan
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Jianpeng Si
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Yuejun He
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang, China
| | - Ying Yang
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Kaiping Shen
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Tingting Xia
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Liling Kang
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Zhengyuan Fang
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Bangli Wu
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Yun Guo
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
| | - Xu Han
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, China
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