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Tang B, Man J, Lehmann A, Rillig MC. Arbuscular mycorrhizal fungi benefit plants in response to major global change factors. Ecol Lett 2023; 26:2087-2097. [PMID: 37794719 DOI: 10.1111/ele.14320] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/06/2023]
Abstract
Land plants play a key role in global carbon cycling, but the potential role of arbuscular mycorrhizal fungi (AMF) in the responses of a wide range of plant species to global change factors (GCFs) remains limited. Based on 1100 paired observations from 181 plant species, we conducted a meta-analysis to test the role of AMF in plant responses to four GCFs: drought, warming, nitrogen (N) addition and elevated CO2 . We show that AMF significantly ameliorate the negative effects of drought on plant performance. The GCFs N addition and elevated CO2 significantly enhance the performance of AM plants but not of non-inoculated plants. AM plants show better performance than their non-inoculated counterparts under warming, although neither of them showed a significant response to this GCF. These results suggest that AMF benefit plants in response to GCFs. Our study highlights the importance of AMF in enhancing plant performance under ongoing global change.
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Affiliation(s)
- Bo Tang
- Institute of Biology, Freie Universität Berlin, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - Jing Man
- Institute of Biology, Freie Universität Berlin, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - Anika Lehmann
- Institute of Biology, Freie Universität Berlin, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - Matthias C Rillig
- Institute of Biology, Freie Universität Berlin, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
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2
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Huangfu C, Wang B, Hu W. Mycorrhizal colonization had little effect on growth of Carex thunbergii but inhibited its nitrogen uptake under deficit water supply. ANNALS OF BOTANY 2023; 132:217-227. [PMID: 37464876 PMCID: PMC10583201 DOI: 10.1093/aob/mcad095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 07/13/2023] [Indexed: 07/20/2023]
Abstract
BACKGROUND AND AIMS Plant nitrogen (N) acquisition via arbuscular mycorrhizal fungi (AMF) serves as a dominant pathway in the N nutrition of many plants, but the functional impact of AMF in acquisition of N by wetland plants has not been well quantified. Subtropical lake-wetland ecosystems are characterized by seasonal changes in the water table and low N availability in soil. Yet, it is unclear whether and how AMF alters the N acquisition pattern of plants for various forms of N and how this process is influenced by soil water conditions. METHODS We performed a pot study with Carex thunbergii that were either colonized by AMF or not colonized and also subjected to different water conditions. We used 15N labelling to track plant N uptake. KEY RESULTS Colonization by AMF had little effect on the biomass components of C. thunbergii but did significantly affect the plant functional traits and N acquisition in ways that were dependent on the soil water conditions. The N uptake rate of AMF-colonized plants was significantly lower than that of the non-colonized plants in conditions of low soil water. A decreased NO3- uptake rate in AMF-colonized plants reduced the N:P ratio of the plants. Although C. thunbergii predominantly took up N in the form of NO3-, higher water availability increased the proportion of N taken up as NH4+, irrespective of the inoculation status. CONCLUSIONS These results emphasize the importance of AMF colonization in controlling the N uptake strategies of plants and can improve predictions of N budget under the changing water table conditions in this subtropical wetland ecosystem.
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Affiliation(s)
- Chaohe Huangfu
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China
| | - Beibei Wang
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China
| | - Wuqiong Hu
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China
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3
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Jiang M, Tian Y, Guo R, Li S, Guo J, Zhang T. Effects of warming and nitrogen addition on soil fungal and bacterial community structures in a temperate meadow. Front Microbiol 2023; 14:1231442. [PMID: 37502394 PMCID: PMC10369075 DOI: 10.3389/fmicb.2023.1231442] [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: 05/30/2023] [Accepted: 06/26/2023] [Indexed: 07/29/2023] Open
Abstract
Soil microbial communities have been influenced by global changes, which might negatively regulate aboveground communities and affect nutrient resource cycling. However, the influence of warming and nitrogen (N) addition and their combined effects on soil microbial community composition and structure are still not well understood. To explore the effect of warming and N addition on the composition and structure of soil microbial communities, a five-year field experiment was conducted in a temperate meadow. We examined the responses of soil fungal and bacterial community compositions and structures to warming and N addition using ITS gene and 16S rRNA gene MiSeq sequencing methods, respectively. Warming and N addition not only increased the diversity of soil fungal species but also affected the soil fungal community structure. Warming and N addition caused significant declines in soil bacterial richness but had few impacts on bacterial community structure. The changes in plant species richness affected the soil fungal community structure, while the changes in plant cover also affected the bacterial community structure. The response of the soil bacterial community structure to warming and N addition was lower than that of the fungal community structure. Our results highlight that the influence of global changes on soil fungal and bacterial community structures might be different, and which also might be determined, to some extent, by plant community, soil physicochemical properties, and climate characteristics at the regional scale.
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Affiliation(s)
- Ming Jiang
- College of Life Science and Technology, Mudanjiang Normal University, Mudanjiang, China
- Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Changchun, China
| | - Yibo Tian
- Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Changchun, China
| | - Rui Guo
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Key Laboratory of Dryland Agriculture, Ministry of Agriculture, Beijing, China
| | - Shuying Li
- Forestry and Grassland Bureau of Aohan Banner, Chifeng, China
| | - Jixun Guo
- Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Changchun, China
| | - Tao Zhang
- Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Changchun, China
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4
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Yang X, Ma Y, Zhang J, Bai H, Shen Y. How arbuscular mycorrhizal fungi drives herbaceous plants' C: N: P stoichiometry? A meta-analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 862:160807. [PMID: 36526182 DOI: 10.1016/j.scitotenv.2022.160807] [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: 07/14/2022] [Revised: 12/05/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Plant element stoichiometry is fundamental for preserving growth-related terrestrial ecosystem structures and functions. However, effects of arbuscular mycorrhizal fungi (AMF) on herbaceous plant element stoichiometry (carbon (C), nitrogen (N), and phosphorus (P)) remain unclear. In this study, we aimed at evaluating the potential effects of AMF on herbaceous plant C, N and P concentration and their C:N:P stoichiometry worldwide through a quantitative meta-analysis. We observed that AMF reduced C:P and N:P ratios in the shoot of plants by 35.83 % and 54.23 %, respectively, and in plant root organs by 36.24 % and 46.35 %, respectively. Conversely, C:N ratios increased in roots by 6.61 %. The negative effect of AMF on N:P and C:P ratios in plant shoots and root organs is mainly attributed to the plant benefits in P and N concentrations. AMF impact on plant C:N:P stoichiometry depends on fungal and plant functional group identities and soil nutrient availability. Our results suggest that plant functional group identity affects plant nutrient concentration, which, in turn, controls herbaceous plant C:N:P stoichiometry. Overall, we emphasize the importance of abiotic and biotic environmental factors in changing AMF effects on plant element stoichiometry. Therefore, clarifying the relationship between AMF and herbaceous plant C:N:P stoichiometry will improve our understanding of herbaceous plant stoichiometric variations in terrestrial ecosystems.
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Affiliation(s)
- Xin Yang
- School of Agriculture, Ningxia University, Yinchuan, Ningxia 750021, China; Ningxia Engineering Technology Research Center for Prataculture, Yinchuan, Ningxia 750021, China
| | - Yurong Ma
- School of Agriculture, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Jianjun Zhang
- School of Agriculture, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Haotian Bai
- School of Agriculture, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Yue Shen
- School of Agriculture, Ningxia University, Yinchuan, Ningxia 750021, China; Ningxia Engineering Technology Research Center for Prataculture, Yinchuan, Ningxia 750021, China.
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5
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Zhou L, Liu W, Duan H, Dong H, Li J, Zhang S, Zhang J, Ding S, Xu T, Guo B. Improved effects of combined application of nitrogen-fixing bacteria Azotobacter beijerinckii and microalgae Chlorella pyrenoidosa on wheat growth and saline-alkali soil quality. CHEMOSPHERE 2023; 313:137409. [PMID: 36457265 DOI: 10.1016/j.chemosphere.2022.137409] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/05/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Soil salinization seriously affects crop yield and soil productivity. The application of bacteria and microalgae has been considered as a promising strategy to alleviate soil salinization. However, the effect of bacteria-microalgae symbiosis on saline-alkali land is still unclear. This study evaluated the effects of Azotobacter beijerinckii, Chlorella pyrenoidosa, and their combined application on the wheat growth and saline-alkali soil improvement. The results showed that, among all the treatments, A. beijerinckii + live C. pyrenoidosa combined inoculation group (BA) had the best effect on increasing wheat plant biomass, improving salt tolerance, and improving soil fertility. The dry weight of wheat plant in the BA group increased by 66.7%, 17.4%, and 35.0%, respectively, compared with the control group (CK), A. beijerinckii inoculation group (B), and live C. pyrenoidosa inoculation group (A). The total nitrogen content of wheat plant in the BA group increased by 69.5%, 76.7%, and 71.1%, compared with the CK, B, and A group. The proline content of wheat plant in the BA group was 100% higher than that in the CK group. The N/P ratio and K/Na ratio of wheat plant increased by 157% and 12.9% in the BA group compared with the CK group, respectively, which was more conducive to alleviating nitrogen limitation and salt stress. The A. beijerinckii + live C. pyrenoidosa inoculation treatment better reduced soil pH and improved the availability of phosphorus in soil. This study illustrated the comprehensive application prospects of bacteria-microalgae interactions on wheat growth promotion and soil improvement in saline-alkali land, and provided a new effective strategy for improving saline-alkali soil quality and increasing crop productivity.
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Affiliation(s)
- Lixiu Zhou
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China; Faculty of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Wei Liu
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China; Faculty of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Huijie Duan
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China; Faculty of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Haiwen Dong
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China; Faculty of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Jingchao Li
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China; Faculty of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Shuxi Zhang
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China; Faculty of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Jing Zhang
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
| | - Shigang Ding
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
| | - Tongtong Xu
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China; Faculty of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Beibei Guo
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
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6
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Wu H, Yang J, Fu W, Rillig MC, Cao Z, Zhao A, Hao Z, Zhang X, Chen B, Han X. Identifying thresholds of nitrogen enrichment for substantial shifts in arbuscular mycorrhizal fungal community metrics in a temperate grassland of northern China. THE NEW PHYTOLOGIST 2023; 237:279-294. [PMID: 36177721 DOI: 10.1111/nph.18516] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Nitrogen (N) enrichment poses threats to biodiversity and ecosystem stability, while arbuscular mycorrhizal (AM) fungi play important roles in ecosystem stability and functioning. However, the ecological impacts, especially thresholds of N enrichment potentially causing AM fungal community shifts have not been adequately characterized. Based on a long-term field experiment with nine N addition levels ranging from 0 to 50 g N m-2 yr-1 in a temperate grassland, we characterized the community response patterns of AM fungi to N enrichment. Arbuscular mycorrhizal fungal biomass continuously decreased with increasing N addition levels. However, AM fungal diversity did not significantly change below 20 g N m-2 yr-1 , but dramatically decreased at higher N levels, which drove the AM fungal community to a potentially unstable state. Structural equation modeling showed that the decline in AM fungal biomass could be well explained by soil acidification, whereas key driving factors for AM fungal diversity shifted from soil nitrogen : phosphorus (N : P) ratio to soil pH with increasing N levels. Different aspects of AM fungal communities (biomass, diversity and community composition) respond differently to increasing N addition levels. Thresholds for substantial community shifts in response to N enrichment in this grassland ecosystem are identified.
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Affiliation(s)
- Hui Wu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junjie Yang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Wei Fu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Matthias C Rillig
- Institute of Biology, Freie Universität Berlin, Berlin, 14195, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany
| | - Zhenjiao Cao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Aihua Zhao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Zhipeng Hao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Xin Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Baodong Chen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xingguo Han
- University of Chinese Academy of Sciences, Beijing, 100049, China
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
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7
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Impacts of Biogas Slurry Fertilization on Arbuscular Mycorrhizal Fungal Communities in the Rhizospheric Soil of Poplar Plantations. J Fungi (Basel) 2022; 8:jof8121253. [PMID: 36547585 PMCID: PMC9782214 DOI: 10.3390/jof8121253] [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: 09/28/2022] [Revised: 10/27/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
The majority of terrestrial plants are symbiotic with arbuscular mycorrhizal fungi (AMF). Plants supply carbohydrates to microbes, whereas AMF provide plants with water and other necessary nutrients-most typically, phosphorus. Understanding the response of the AMF community structure to biogas slurry (BS) fertilization is of great significance for sustainable forest management. This study aimed to look into the effects of BS fertilization at different concentrations on AMF community structures in rhizospheric soil in poplar plantations. We found that different fertilization concentrations dramatically affected the diversity of AMF in the rhizospheric soil of the poplar plantations, and the treatment with a high BS concentration showed the highest Shannon diversity of AMF and OTU richness (Chao1). Further analyses revealed that Glomerales, as the predominant order, accounted for 36.2-42.7% of the AMF communities, and the relative abundance of Glomerales exhibited negligible changes with different BS fertilization concentrations, whereas the order Paraglomerales increased significantly in both the low- and high-concentration treatments in comparison with the control. Furthermore, the addition of BS drastically enhanced the relative abundance of the dominant genera, Glomus and Paraglomus. The application of BS could also distinguish the AMF community composition in the rhizospheric soil well. An RDA analysis indicated that the dominant genus Glomus was significantly positively correlated with nitrate reductase activity, while Paraglomus showed a significant positive correlation with available P. Overall, the findings suggest that adding BS fertilizer to poplar plantations can elevate the diversity of AMF communities in rhizospheric soil and the relative abundance of some critical genera that affect plant nutrient uptake.
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8
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Maschler J, Bialic‐Murphy L, Wan J, Andresen LC, Zohner CM, Reich PB, Lüscher A, Schneider MK, Müller C, Moser G, Dukes JS, Schmidt IK, Bilton MC, Zhu K, Crowther TW. Links across ecological scales: Plant biomass responses to elevated CO 2. GLOBAL CHANGE BIOLOGY 2022; 28:6115-6134. [PMID: 36069191 PMCID: PMC9825951 DOI: 10.1111/gcb.16351] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 07/06/2022] [Indexed: 06/04/2023]
Abstract
The degree to which elevated CO2 concentrations (e[CO2 ]) increase the amount of carbon (C) assimilated by vegetation plays a key role in climate change. However, due to the short-term nature of CO2 enrichment experiments and the lack of reconciliation between different ecological scales, the effect of e[CO2 ] on plant biomass stocks remains a major uncertainty in future climate projections. Here, we review the effect of e[CO2 ] on plant biomass across multiple levels of ecological organization, scaling from physiological responses to changes in population-, community-, ecosystem-, and global-scale dynamics. We find that evidence for a sustained biomass response to e[CO2 ] varies across ecological scales, leading to diverging conclusions about the responses of individuals, populations, communities, and ecosystems. While the distinct focus of every scale reveals new mechanisms driving biomass accumulation under e[CO2 ], none of them provides a full picture of all relevant processes. For example, while physiological evidence suggests a possible long-term basis for increased biomass accumulation under e[CO2 ] through sustained photosynthetic stimulation, population-scale evidence indicates that a possible e[CO2 ]-induced increase in mortality rates might potentially outweigh the effect of increases in plant growth rates on biomass levels. Evidence at the global scale may indicate that e[CO2 ] has contributed to increased biomass cover over recent decades, but due to the difficulty to disentangle the effect of e[CO2 ] from a variety of climatic and land-use-related drivers of plant biomass stocks, it remains unclear whether nutrient limitations or other ecological mechanisms operating at finer scales will dampen the e[CO2 ] effect over time. By exploring these discrepancies, we identify key research gaps in our understanding of the effect of e[CO2 ] on plant biomass and highlight the need to integrate knowledge across scales of ecological organization so that large-scale modeling can represent the finer-scale mechanisms needed to constrain our understanding of future terrestrial C storage.
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Affiliation(s)
- Julia Maschler
- Institute of Integrative BiologyETH Zurich (Swiss Federal Institute of Technology)ZurichSwitzerland
| | - Lalasia Bialic‐Murphy
- Institute of Integrative BiologyETH Zurich (Swiss Federal Institute of Technology)ZurichSwitzerland
| | - Joe Wan
- Institute of Integrative BiologyETH Zurich (Swiss Federal Institute of Technology)ZurichSwitzerland
| | | | - Constantin M. Zohner
- Institute of Integrative BiologyETH Zurich (Swiss Federal Institute of Technology)ZurichSwitzerland
| | - Peter B. Reich
- Department of Forest ResourcesUniversity of MinnesotaSt. PaulMinnesotaUSA
- Hawkesbury Institute for the EnvironmentWestern Sydney UniversityPenrithNew South WalesAustralia
- Institute for Global Change Biology, and School for the Environment and SustainabilityUniversity of MichiganAnn ArborMichiganUSA
| | - Andreas Lüscher
- ETH ZurichInstitute of Agricultural ScienceZurichSwitzerland
- Agroscope, Forage Production and Grassland SystemsZurichSwitzerland
| | - Manuel K. Schneider
- ETH ZurichInstitute of Agricultural ScienceZurichSwitzerland
- Agroscope, Forage Production and Grassland SystemsZurichSwitzerland
| | - Christoph Müller
- Institute of Plant EcologyJustus Liebig UniversityGiessenGermany
- School of Biology and Environmental Science and Earth InstituteUniversity College DublinDublinIreland
| | - Gerald Moser
- Institute of Plant EcologyJustus Liebig UniversityGiessenGermany
| | - Jeffrey S. Dukes
- Department of Forestry and Natural ResourcesPurdue UniversityWest LafayetteIndianaUSA
- Department of Biological SciencesPurdue UniversityWest LafayetteIndianaUSA
- Department of Global EcologyCarnegie Institution for ScienceStanfordCaliforniaUSA
| | - Inger Kappel Schmidt
- Geosciences and Natural Resource ManagementUniversity of CopenhagenCopenhagenDenmark
| | - Mark C. Bilton
- Department of Agriculture and Natural Resources SciencesNamibia University of Science and Technology (NUST)WindhoekNamibia
| | - Kai Zhu
- Department of Environmental StudiesUniversity of CaliforniaSanta CruzCaliforniaUSA
| | - Thomas W. Crowther
- Institute of Integrative BiologyETH Zurich (Swiss Federal Institute of Technology)ZurichSwitzerland
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Luo M, Moorhead DL, Ochoa‐Hueso R, Mueller CW, Ying SC, Chen J. Nitrogen loading enhances phosphorus limitation in terrestrial ecosystems with implications for soil carbon cycling. Funct Ecol 2022. [DOI: 10.1111/1365-2435.14178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Min Luo
- Academy of Geography and Ecological Environment Fuzhou University Fuzhou China
- College of Environment and Safety Engineering Fuzhou University Fuzhou China
| | - Daryl L. Moorhead
- Department of Environmental Sciences University of Toledo Toledo OH USA
| | - Raúl Ochoa‐Hueso
- Department of Biology, IVAGRO University of Cádiz, Campus de Excelencia Internacional Agroalimentario (CeiA3), Campus del Rio San Pedro, 11510 Puerto Real Cádiz Spain
- Department of Terrestrial Ecology Netherlands Institute of Ecology (NIOO‐KNAW) AB Wageningen the Netherlands
| | - Carsten W. Mueller
- Department of Geosciences and Natural Resource Management University of Copenhagen Copenhagen Denmark
| | - Samantha C. Ying
- Environmental Sciences Department University of California‐ Riverside CA USA
| | - Ji Chen
- Department of Agroecology Aarhus University Tjele Denmark
- Aarhus University Centre for Circular Bioeconomy, Aarhus University Tjele Denmark
- iCLIMATE Interdisciplinary Centre for Climate Change Aarhus University Roskilde Denmark
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10
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Mei L, Zhang N, Wei Q, Cao Y, Li D, Cui G. Alfalfa modified the effects of degraded black soil cultivated land on the soil microbial community. FRONTIERS IN PLANT SCIENCE 2022; 13:938187. [PMID: 36061796 PMCID: PMC9437459 DOI: 10.3389/fpls.2022.938187] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Legume alfalfa (Medicago sativa L.) is extensively planted to reduce chemical fertilizer input to the soil and remedy damaged fields. The soil mechanism of these effects is potentially related to the variations in alfalfa-mediated interactions of the soil microbial community. To understand the impact of planting alfalfa on the soil microbial community in degraded black soil cultivated land, a 4-year experiment was conducted in degraded black soil cultivated land. We assessed soil parameters and characterized the functional and compositional diversity of the microbial community by amplicon sequencing that targeted the 16S rDNA gene of bacteria and ITS of fungi in four systems under corn cultivation at the Harbin corn demonstration base (Heilongjiang, China): multiyear corn planting (more than 30 years, MC1); 2 years of alfalfa-corn rotation (OC); 3 years of alfalfa planting (TA); and 4 years of alfalfa planting (FA). It was found out that alfalfa led to changes in the alpha diversity of soil bacteria rather than in fungi in the degraded arable land. The abundance of the bacterial groups Gemmatimonadetes, Actinobacteria, Planctomycetes, and Chloroflexi was increased in OC, while Proteobacteria and Acidobacteria and the fungal group Glomeromycota were increased in TA and FA. OC, TA, and FA significantly increased the pH level but reduced soil electrical conductivity, but they had no impact on soil available nitrogen and soil available potassium at the 0-15 cm soil depth. However, with the years of alfalfa planting, soil available nitrogen and soil available potassium were reduced at the 15-30 cm soil depth. OC, TA, and FA significantly reduced the soil available phosphorus and soil total phosphorus at the 15-30 cm soil depth. There was no significant impact made on soil total nitrogen. FA significantly reduced the soil organic matter at the 15-30 cm soil depth. Planting alfalfa in degraded black soil cultivated land can reduce the salt content of the soil, and the nutrient content of soil planted with alfalfa without fertilization was equivalent to that of degraded corn cultivated land with annual fertilization. Besides, alfalfa recruited and increased contained taxa with the capacity to improve soil nutrient utilization and inhibit the harmful influences of pathogens for subsequent crops. Meanwhile, the planting of alfalfa can modify soil conditions by promoting the proliferation of specific beneficial microbiota groups.
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11
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Li J, Meng B, Yang X, Cui N, Zhao T, Chai H, Zhang T, Sun W. Suppression of AMF accelerates N2O emission by altering soil bacterial community and genes abundance under varied precipitation conditions in a semiarid grassland. Front Microbiol 2022; 13:961969. [PMID: 36003936 PMCID: PMC9393504 DOI: 10.3389/fmicb.2022.961969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 07/06/2022] [Indexed: 11/13/2022] Open
Abstract
Nitrous oxide (N2O) is one of the most important greenhouse gases contributing to global climate warming. Recently, studies have shown that arbuscular mycorrhizal fungi (AMF) could reduce N2O emissions in terrestrial ecosystems; however, the microbial mechanisms of how AMF reduces N2O emissions under climate change are still not well understood. We tested the influence of AMF on N2O emissions by setting up a gradient of precipitation intensity (+50%, +30%, ambient (0%), −30%, −50%, and −70%) and manipulating the presence or exclusion of AMF hyphae in a semiarid grassland located in northeast China. Our results showed that N2O fluxes dramatically declined with the decrease in precipitation gradient during the peak growing season (June–August) in both 2019 and 2020. There was a significantly positive correlation between soil water content and N2O fluxes. Interestingly, N2O fluxes significantly decreased when AMF were present compared to when they were absent under all precipitation conditions. The contribution of AMF to mitigate N2O emission increased gradually with decreasing precipitation magnitudes, but no contribution in the severe drought (−70%). AMF significantly reduced the soil’s available nitrogen concentration and altered the composition of the soil bacteria community including those associated with N2O production. Hyphal length density was negatively correlated with the copy numbers of key genes for N2O production (nirK and nirS) and positively correlated with the copy numbers of key genes for N2O consumption (nosZ). Our results highlight that AMF would reduce the soil N2O emission under precipitation variability in a temperate grassland except for extreme drought.
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Affiliation(s)
- Junqin Li
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
| | - Bo Meng
- Institute of Ecology, College of Urban and Environmental Science, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
| | - Xuechen Yang
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
| | - Nan Cui
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
| | - Tianhang Zhao
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
| | - Hua Chai
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
| | - Tao Zhang
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
- *Correspondence: Tao Zhang,
| | - Wei Sun
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
- Wei Sun,
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Yan C, Liu Z, Yuan Z, Shi X, Lock TR, Kallenbach RL. Aridity modifies the responses of plant stoichiometry to global warming and nitrogen deposition in semi-arid steppes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 831:154807. [PMID: 35341862 DOI: 10.1016/j.scitotenv.2022.154807] [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: 01/21/2022] [Revised: 03/19/2022] [Accepted: 03/20/2022] [Indexed: 06/14/2023]
Abstract
Global warming and nitrogen (N) deposition are known to unbalance the stoichiometry of carbon (C), N, and phosphorus (P) in terrestrial plants, but it is unclear how water availability regulates their effects along a natural aridity gradient. Here, we conducted manipulative experiments to determine the effects of experimental warming (WT) and N addition (NT) on plant stoichiometry in desert, typical, and meadow steppes with decreasing aridity. WT elevated air temperatures by 1.2-2.9 °C using open-top chambers. WT increased forb C:N ratio and thus its N use efficiency and competitiveness in desert steppes, whereas WT reduced forb C:N and C:P ratios in typical and meadow steppes. Plant N:P ratio, which reflects nutrient limitation, was reduced by WT in desert steppes but not for typical or meadow steppes. NT reduced plant C:N ratios and increased N:P ratios in all three steppes. NT reduced forb C:P ratios in desert and typical steppes, but it enhanced grass C:P ratio in meadow steppes, indicating an enhancement of P use efficiency and competitiveness of grasses in wet steppes. WT and NT had synergetic effects on grass C:N and C:P ratios in all three steppes, which helps to increase grasses' productivity. Under WT or NT, the changes in community C:N ratio were positively correlated with increasing aridity, indicating that aridity increases plants' N use efficiency. However, aridity negatively affected the changes in N:P ratios under NT but not WT, which suggests that aridity mitigates P limitation induced by N deposition. Our results imply that warming could shift the dominant functional group into forbs in dry steppes due to altered stoichiometry, whereas grasses become dominated plants in wet steppes under increasing N deposition. We suggest that global changes might break the stoichiometric balance of plants and water availability could strongly modify such processes in semi-arid steppes.
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Affiliation(s)
- Chuang Yan
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Geographical Sciences, Henan Academy of Sciences, Zhengzhou, Henan 450052, China
| | - Zunchi Liu
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhiyou Yuan
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Xinrong Shi
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - T Ryan Lock
- Division of Plant Sciences and Technology, College of Agriculture, Food, and Natural Resources, University of Missouri, 108 Waters Hall, Columbia, MO 65211, USA
| | - Robert L Kallenbach
- Division of Plant Sciences and Technology, College of Agriculture, Food, and Natural Resources, University of Missouri, 108 Waters Hall, Columbia, MO 65211, USA
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Nahuelcura J, Ruiz A, Gomez F, Cornejo P. The effect of arbuscular mycorrhizal fungi on the phenolic compounds profile, antioxidant activity and grain yields in wheat cultivars growing under hydric stress. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:407-416. [PMID: 34143900 DOI: 10.1002/jsfa.11370] [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: 03/03/2021] [Revised: 05/18/2021] [Accepted: 06/18/2021] [Indexed: 05/27/2023]
Abstract
BACKGROUND Hydric stress affects the production of wheat (Triticum aestivum L.) worldwide, making some tools necessary to cope with the decrease in rainfall. A sustainable alternative is the use of arbuscular mycorrhizal fungi (AMF) as biofertilisers. Here, we analysed the effects of AMF strains adapted or non-adapted to hyper-arid conditions on the phenolic profiles and antioxidant activities of wheat grains from two cultivars with contrasting tolerance to osmotic stress (Ilustre, moderately tolerant; and Maxi, tolerant) grown with and without hydric stress. RESULTS Eight phenolic compounds were detected, apigenin-C-pentoside-C-hexoside I being the most abundant and showing an increase of 80.5% when inoculated with the fungus Funneliformis mosseae (FM) obtained from Atacama Desert under normal irrigation with respect to non-mycorrhizal (NM) plants. NM treatments were associated with higher grain yields. FM showed a noticeable effect on most phenolic compounds, with an increase up to 30.2% in apigenin-C-pentoside-C-hexoside III concentration under hydric stress with respect to normal irrigation, being also responsible for high antioxidant activities such as ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) and DPPH (2,2-diphenyl-1-picrylhydrazyl) activities. CONCLUSION Inoculation with FM adapted to hydric stress produced improvements in phenolics composition and antioxidant activities in grains from wheat plants growing under hydric stress conditions, improving their food quality and supporting the development of further studies to determine whether the use of adapted AMF could be a realistic tool to improve grain quality in a scenario of increasing hydric stress conditions. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Javiera Nahuelcura
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Temuco, Chile
- Departamento de Ciencias Químicas y Recursos Naturales, Scientific and Technological Bioresource Nucleus BIOREN-UFRO, Universidad de La Frontera, Temuco, Chile
| | - Antonieta Ruiz
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Temuco, Chile
- Departamento de Ciencias Químicas y Recursos Naturales, Scientific and Technological Bioresource Nucleus BIOREN-UFRO, Universidad de La Frontera, Temuco, Chile
| | - Francisca Gomez
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Temuco, Chile
- Departamento de Ciencias Químicas y Recursos Naturales, Scientific and Technological Bioresource Nucleus BIOREN-UFRO, Universidad de La Frontera, Temuco, Chile
| | - Pablo Cornejo
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Temuco, Chile
- Departamento de Ciencias Químicas y Recursos Naturales, Scientific and Technological Bioresource Nucleus BIOREN-UFRO, Universidad de La Frontera, Temuco, Chile
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Huang K, Kardol P, Yan X, Luo X, Guo H. Plant–soil biota interactions explain shifts in plant community composition under global change. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Kailing Huang
- College of Resources and Environmental Sciences Nanjing Agricultural University Nanjing China
| | - Paul Kardol
- Department of Forest Ecology and Management Swedish University of Agricultural Sciences Umeå Sweden
| | - Xuebin Yan
- College of Resources and Environmental Sciences Nanjing Agricultural University Nanjing China
| | - Xi Luo
- College of Resources and Environmental Sciences Nanjing Agricultural University Nanjing China
| | - Hui Guo
- College of Resources and Environmental Sciences Nanjing Agricultural University Nanjing China
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15
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Saboor A, Ali MA, Hussain S, El Enshasy HA, Hussain S, Ahmed N, Gafur A, Sayyed R, Fahad S, Danish S, Datta R. Zinc nutrition and arbuscular mycorrhizal symbiosis effects on maize ( Zea mays L.) growth and productivity. Saudi J Biol Sci 2021; 28:6339-6351. [PMID: 34759753 PMCID: PMC8568715 DOI: 10.1016/j.sjbs.2021.06.096] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/14/2021] [Accepted: 06/29/2021] [Indexed: 11/19/2022] Open
Abstract
Zinc (Zn) is an essential micronutrient required to enhance crop growth and yield. In the arid – semiarid region, Zn deficiency is expected due to alkaline calcareous soil. Contrarily, Zn toxicity is also becoming an environmental concern due to increasing anthropogenic activities (metal smelting, copper industry, etc.). Therefore, balanced Zn application is necessary to save resources and achieve optimum crop growth and yield. Most scientists suggest biological approaches to overcome the problem of Zn toxicity and deficiency. These biological approaches are mostly environment-friendly and cost-effective. In these biological approaches, the use of arbuscular mycorrhizae fungi (AMF) symbiosis is becoming popular. It can provide tolerance to the host plant against Zn-induced stress. Inoculation of AMF helps in balance uptake of Zn and enhances the growth and yield of crops. On the other hand, maize (Zea mays L.) is an important cereal crop due to its multifarious uses. As maize is an effective host for mycorrhizae symbiosis, that’s why this review was written to elaborate on the beneficial role of arbuscular mycorrhizal fungi (AMF). The review aimed to glance at the recent advances in the use of AMF to enhance nutrient uptake, especially Zn. It was also aimed to discuss the mechanism of AMF to overcome the toxic effect of Zn. We have also discussed the detailed mechanism and physiological improvement in the maize plant. In conclusion, AMF can play an imperative role in improving maize growth, yield, and balance uptake of Zn by alleviating Zn stress and mitigating its toxicity.
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Affiliation(s)
- Abdul Saboor
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Arif Ali
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
- Corresponding authors.
| | - Shabir Hussain
- Department of Agronomy, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
| | - Hesham A. El Enshasy
- Institute of Bioproduct Development (IBD), Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru, Johor, Malaysia
- City of Scientific Research and Technology Applications (SRTA), New Burg Al Arab, Alexandria, Egypt
| | - Sajjad Hussain
- Department of Horticulture, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
| | - Niaz Ahmed
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
| | - Abdul Gafur
- Sinarmas Forestry Corporate Research and Development, Perawang 28772, Indonesia
| | - R.Z. Sayyed
- Institute of Genetics and Plants Experimental Biology, Academy of Sciences of Uzbekistan, Tashkent, Uzbekistan
| | - Shah Fahad
- Department of Agronomy, The University of Haripur, Haripur 22620, Pakistan
| | - Subhan Danish
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
- Corresponding authors.
| | - Rahul Datta
- Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska 3, 61300 Brno, Czech Republic
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16
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Exploring tea (Camellia sinensis) microbiome: Insights into the functional characteristics and their impact on tea growth promotion. Microbiol Res 2021; 254:126890. [PMID: 34689100 DOI: 10.1016/j.micres.2021.126890] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 02/06/2023]
Abstract
Tea (Camellia sinensis) is perhaps the most popular and economic beverage in the globe due to its distinctive fragrance and flavour generated by the leaves of commercially farmed tea plants. The tea microbiome has now become a prominent topic of attention for microbiologists in recent years as it can help the plant for soil nutrient acquisition as well as stress management. Tea roots are well known to be colonized by Arbuscular Mycorrhizal Fungi (AMF) and many other beneficial microorganisms that boost the growth of the tea which increases leaf amino acids, protein, caffeine, and polyphenols content. One of the primary goals of rhizosphere microbial biology is to aid in the establishment of agricultural systems that provide high quantities of the food supply while minimizing environmental effects and anthropogenic activities. The present review is aimed to highlight the importance of microbes (along with their phylogeny) derived from cultivated and natural tea rhizospheres to understand the role of AMF and rhizospheric bacterial population to improve plant growth, enhancement of tea quality, and protecting tea plants from pathogens. This review also summarizes recent advances in our understanding of the diversity and profile of tea-associated bacteria. The utilization of the tea microbiome as a "natural resource" could provide holistic development in tea cultivation to ensure sustainability, highlighting knowledge gaps and future microbiome research.
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17
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Ban Y, Xiao Z, Wu C, Lv Y, Meng F, Wang J, Xu Z. The positive effects of inoculation using arbuscular mycorrhizal fungi and/or dark septate endophytes on the purification efficiency of CuO-nanoparticles-polluted wastewater in constructed wetland. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126095. [PMID: 34492904 DOI: 10.1016/j.jhazmat.2021.126095] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/05/2021] [Accepted: 05/08/2021] [Indexed: 06/13/2023]
Abstract
The extent to which, and mechanisms by which, arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) purify wetlands polluted by metallic nanoparticles (metallic NPs) are not well understood. In this study, micro-vertical flow constructed wetlands (MVFCWs) with the Phragmites australis (reeds)-AMF/DSE symbiont were used to treat CuO nanoparticles (CuO-NPs)-polluted wastewater. The results showed that (1) the removal efficiencies of chemical oxygen demand (COD), total nitrogen (TN), and CuO-NPs in three inoculated groups significantly exceeded those in the control check (CK) groups by 28.94-98.72%, 16.63-47.66%, and 0.53-19.12%, respectively; (2) inoculation with AMF and/or DSE significantly promoted the growth, nutrient content, and photosynthesis of reeds, increased the osmoregulation substance content and antioxidant enzyme activities, and decreased the malondialdehyde and reactive oxygen species contents of reeds under CuO-NPs stress; (3) higher Cu accumulation and smaller transport coefficients were found in the inoculated groups than in the CK group; (4) inoculation with AMF and/or DSE changed the subcellular structure distribution and chemical form of Cu in reeds. We therefore conclude that inoculation with AMF and/or DSE in MVFCWs improves the purification of CuO-NPs-polluted wastewater, and the MVFCW-reeds-AMF/DSE associations exhibit great potential for application in remediation of metallic-NPs-polluted wastewater.
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Affiliation(s)
- Yihui Ban
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, China
| | - Zong Xiao
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China
| | - Chen Wu
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China
| | - Yichao Lv
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China
| | - Fake Meng
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China
| | - Jinyi Wang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China
| | - Zhouying Xu
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China.
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18
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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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19
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Yang G, Zhang Y, Yang X, Liu N, Rillig MC, Veresoglou SD, Wagg C. Mycorrhizal suppression and phosphorus addition influence the stability of plant community composition and function in a temperate steppe. OIKOS 2021. [DOI: 10.1111/oik.07610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gaowen Yang
- College of Grassland Science and Technology, China Agricultural Univ. Beijing PR China
- Inst. für Biologie, Freie Univ. Berlin Berlin Germany
- Berlin‐Brandenburg Inst. of Advanced Biodiversity Research (BBIB) Berlin Germany
| | - Yingjun Zhang
- College of Grassland Science and Technology, China Agricultural Univ. Beijing PR China
| | - Xin Yang
- College of Grassland Science and Technology, China Agricultural Univ. Beijing PR China
| | - Nan Liu
- College of Grassland Science and Technology, China Agricultural Univ. Beijing PR China
| | - Matthias C. Rillig
- Inst. für Biologie, Freie Univ. Berlin Berlin Germany
- Berlin‐Brandenburg Inst. of Advanced Biodiversity Research (BBIB) Berlin Germany
| | - Stavros D. Veresoglou
- Inst. für Biologie, Freie Univ. Berlin Berlin Germany
- Berlin‐Brandenburg Inst. of Advanced Biodiversity Research (BBIB) Berlin Germany
| | - Cameron Wagg
- Dept of Evolutionary Biology and Environmental Studies, Univ. of Zürich Zürich Switzerland
- Fredericton Research and Development Centre, Agriculture and Agri‐Food Canada Fredericton NB Canada
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20
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Yang X, Henry HAL, Zhong S, Meng B, Wang C, Gao Y, Sun W. Towards a mechanistic understanding of soil nitrogen availability responses to summer vs. winter drought in a semiarid grassland. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 741:140272. [PMID: 32570067 DOI: 10.1016/j.scitotenv.2020.140272] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/14/2020] [Accepted: 06/14/2020] [Indexed: 06/11/2023]
Abstract
More frequent and intense drought events resulting from climate change are anticipated to become important drivers of change for terrestrial ecosystem function by affecting water and nutrient cycles. In semiarid grasslands, the responses of soil nitrogen availability to severe drought and the underlying mechanisms are largely unknown. Moreover, the responses and mechanisms may vary between summer and winter drought. We examined soil nitrogen availability responses to extreme reductions in precipitation over summer and winter using a field experiment in a semiarid grassland located in northeast China, and we explored the mechanisms by examining associated changes in abiotic factors (soil property responses) and biotic factors (plant and soil microbial responses). The results demonstrated that both the summer and winter severe drought treatments significantly reduced plant and microbial biomass, whereas summer drought also changed soil microbial community structure. Summer drought, winter drought and combined summer and winter drought decreased the resistance of soil nitrogen availability by 38.7 ± 11.1%, 43.3 ± 11.4% and 43.8 ± 6.0%, respectively. While both changes in abiotic factors (reduced soil water content and total nitrogen content) and biotic factors (reduced plant and microbial biomass) explained the resistance of soil nitrogen availability to drought over summer, only changes in biotic factors (reduced plant and microbial biomass) explained the legacy effect of winter drought. Our results highlight that severe drought can have important consequences for nitrogen cycling in semiarid grasslands, and that both the effects of summer and winter drought must be accounted for in predicting these responses.
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Affiliation(s)
- Xuechen Yang
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, Jilin 130024, PR China
| | - Hugh A L Henry
- Department of Biology, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Shangzhi Zhong
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, Jilin 130024, PR China
| | - Bo Meng
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, Jilin 130024, PR China
| | - Chengliang Wang
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, Jilin 130024, PR China
| | - Ying Gao
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, Jilin 130024, PR China
| | - Wei Sun
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, Jilin 130024, PR China.
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21
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Chen J, van Groenigen KJ, Hungate BA, Terrer C, van Groenigen JW, Maestre FT, Ying SC, Luo Y, Jørgensen U, Sinsabaugh RL, Olesen JE, Elsgaard L. Long-term nitrogen loading alleviates phosphorus limitation in terrestrial ecosystems. GLOBAL CHANGE BIOLOGY 2020; 26:5077-5086. [PMID: 32529708 DOI: 10.1111/gcb.15218] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 05/21/2020] [Indexed: 05/02/2023]
Abstract
Increased human-derived nitrogen (N) deposition to terrestrial ecosystems has resulted in widespread phosphorus (P) limitation of net primary productivity. However, it remains unclear if and how N-induced P limitation varies over time. Soil extracellular phosphatases catalyze the hydrolysis of P from soil organic matter, an important adaptive mechanism for ecosystems to cope with N-induced P limitation. Here we show, using a meta-analysis of 140 studies and 668 observations worldwide, that N stimulation of soil phosphatase activity diminishes over time. Whereas short-term N loading (≤5 years) significantly increased soil phosphatase activity by 28%, long-term N loading had no significant effect. Nitrogen loading did not affect soil available P and total P content in either short- or long-term studies. Together, these results suggest that N-induced P limitation in ecosystems is alleviated in the long-term through the initial stimulation of soil phosphatase activity, thereby securing P supply to support plant growth. Our results suggest that increases in terrestrial carbon uptake due to ongoing anthropogenic N loading may be greater than previously thought.
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Affiliation(s)
- Ji Chen
- Department of Agroecology, Aarhus University, Tjele, Denmark
- Aarhus University Center for Circular Bioeconomy, Aarhus University, Tjele, Denmark
- iCLIMATE Interdisciplinary Centre for Climate Change, Aarhus University, Roskilde, Denmark
| | - Kees J van Groenigen
- Department of Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Bruce A Hungate
- Center for Ecosystem Science and Society and Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ, USA
| | - César Terrer
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory (LLNL), Livermore, CA, USA
| | | | - Fernando T Maestre
- Instituto Multidisciplinar para el Estudio del Medio "Ramon Margalef", Universidad de Alicante, Alicante, Spain
- Departamento de Ecología, Universidad de Alicante, Alicante, Spain
| | - Samantha C Ying
- Department of Environmental Sciences, University of California, Riverside, CA, USA
| | - Yiqi Luo
- Center for Ecosystem Science and Society and Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ, USA
| | - Uffe Jørgensen
- Department of Agroecology, Aarhus University, Tjele, Denmark
- Aarhus University Center for Circular Bioeconomy, Aarhus University, Tjele, Denmark
| | | | - Jørgen E Olesen
- Department of Agroecology, Aarhus University, Tjele, Denmark
- iCLIMATE Interdisciplinary Centre for Climate Change, Aarhus University, Roskilde, Denmark
| | - Lars Elsgaard
- Department of Agroecology, Aarhus University, Tjele, Denmark
- iCLIMATE Interdisciplinary Centre for Climate Change, Aarhus University, Roskilde, Denmark
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22
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Hu S, Chen Z, Vosátka M, Vymazal J. Arbuscular mycorrhizal fungi colonization and physiological functions toward wetland plants under different water regimes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 716:137040. [PMID: 32044486 DOI: 10.1016/j.scitotenv.2020.137040] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 01/21/2020] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF) have been widely reported to occur in the association with wetland plants. However, the factors that affect AMF colonization in wetland plants and physiological functions in AMF inoculated wetland plants are poorly studied. This study investigated the effects of four water regimes (below the surface of sands: water levels of 5 cm, 9 cm, 11 cm, and fluctuating water depth (9-11 cm)) on AMF root colonization in two wetland plants (Phalaris arundinacea and Scirpus sylvaticus) which are commonly used in constructed wetland. Results showed that two lower water regimes were the most suitable for the formation of root colonization by AMF. Plant species did not show any significant difference in AMF colonization. The AMF colonization of 15.6-23.3% in the roots of both wetland plants were determined under the water regimes of 11 cm and 9-11 cm. In comparison to the non-inoculated plants, root length, shoot height, biomass, shoot total phosphorus and chlorophyll contents of both wetland plants under the fluctuating water regimes (9-11 cm) were increased by 35.4-46.2%, 13.1-26.6%, 33.3-114.3%, 25.7-80% and 14.3-24%, respectively. Although malondialdehyde (MDA) contents in both AMF inoculated wetland plants were decreased under the lower water levels, the MDA contents under the water regime of 11 cm were still high. Therefore, these results indicated that the physiological functions in wetland plants with high AMF colonization might be improved under a specific water regime condition (e.g. depth of fluctuating water regime).
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Affiliation(s)
- Shanshan Hu
- Czech University of Life Sciences Prague, Department of Applied Ecology, Faculty of Environmental Sciences, Kamýcká 129, 16521 Prague, Czech Republic
| | - Zhongbing Chen
- Czech University of Life Sciences Prague, Department of Applied Ecology, Faculty of Environmental Sciences, Kamýcká 129, 16521 Prague, Czech Republic.
| | - Miroslav Vosátka
- Institute of Botany, The Czech Academy of Sciences, Zámek 1, 25243 Průhonice, Czech Republic
| | - Jan Vymazal
- Czech University of Life Sciences Prague, Department of Applied Ecology, Faculty of Environmental Sciences, Kamýcká 129, 16521 Prague, Czech Republic
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23
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Ma W, Li J, Gao Y, Xing F, Sun S, Zhang T, Zhu X, Chen C, Li Z. Responses of soil extracellular enzyme activities and microbial community properties to interaction between nitrogen addition and increased precipitation in a semi-arid grassland ecosystem. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 703:134691. [PMID: 31731161 DOI: 10.1016/j.scitotenv.2019.134691] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 06/10/2023]
Abstract
Both atmospheric nitrogen (N) deposition and precipitation can strongly impact below-ground biogeochemical processes. Soil extracellular enzymes activities (EEAs) and microorganisms are considered as the key agents in ecosystem nutrient cycling. However, how the interaction between increasing N deposition and precipitation may affect soil EEAs and microbes remain poorly understood. In a 5-year field experiment in a meadow steppe in northern China, we tested the effects of N addition (N0, 0; N1, 5; N2, 10 g N m-2 yr-1) and increased precipitation (W0, ambient precipitation; W1, increase of 15% ambient precipitation; W2, increase of 30% ambient precipitation) on soil EEAs, microbial and chemical properties. Results showed that their interaction significantly affected all hydrolase activities, except for β-1,4-xylosidase (βX). Furthermore, increased precipitation and N addition interactively affected bacterial gene copies (P ≤ 0.05), and increased precipitation comparatively had a stronger effects. The results on the combination of N addition and increased precipitation showed that increased precipitation alleviated the positive effects of N addition on soil EEAs. This implies that the effects of either treatment alone on grassland biogeochemical processes may be alleviated by their simultaneous occurrence. Our results suggested that soil EEAs were mainly controlled by the content of N and phosphorus (P), and the ratio of C: N and C: P. Therefore, soil element content and stoichiometry could better explain the responses of EEAs to global changes. Moreover, soil microbial communities were mainly controlled by soil P content. Overall, our study highlights that the interaction between N deposition and precipitation may play a vital role in predicting the responses of soil enzyme activities to global changes in grassland ecosystems.
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Affiliation(s)
- Wenjun Ma
- Institute of Grassland Science, Northeast Normal University, Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China
| | - Jian Li
- Department of Biology, Lund University, Microbial Ecology, Ecology Building, Lund 22646, Sweden
| | - Ying Gao
- Institute of Grassland Science, Northeast Normal University, Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China.
| | - Fu Xing
- Institute of Grassland Science, Northeast Normal University, Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China.
| | - Shengnan Sun
- Institute of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Tao Zhang
- Institute of Grassland Science, Northeast Normal University, Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China
| | - Xingzun Zhu
- Institute of Grassland Science, Northeast Normal University, Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China
| | - Chen Chen
- Institute of Grassland Science, Northeast Normal University, Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China
| | - Zhuo Li
- Institute of Grassland Science, Northeast Normal University, Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China
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