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Damasceno G, Fidelis A. Per-capita impacts of an invasive grass vary across levels of ecological organization in a tropical savanna. Biol Invasions 2023. [DOI: 10.1007/s10530-023-03011-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Kato-Noguchi H. Allelopathy and Allelochemicals of Imperata cylindrica as an Invasive Plant Species. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11192551. [PMID: 36235415 PMCID: PMC9573136 DOI: 10.3390/plants11192551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 05/17/2023]
Abstract
Imperata cylindrica is native to Southeast Asia and East Africa and has become naturalized in humid tropics, subtropics and warmer temperate zones of the world. The species is one of the top ten worst weeds in the worlds and is listed among the world's top 100 worst invasive alien species. It is an aggressive colonizer and forms large monospecific stands in several countries. Possible evidence of the allelopathy of I. cylindrica has been accumulated in the literature over three decades. The extracts, leachates, root exudates, decomposing residues and rhizosphere soil of I. cylindrica were found to suppress the germination and growth of several plant species, including woody plant species, and to reduce their rhizobium nodulation and mycorrhizal colonization. Several allelochemicals, such as fatty acids, terpenoids, simple phenolics, benzoic acids, phenolic acids, phenolic aldehydes, phenylpropanoids, flavonoids, quinones and alkaloids, were also found in the extracts, leachates, root exudates and/or growth medium of I. cylindrica. These observations suggest that allelochemicals may be synthesized in I. cylindrica and released into the rhizosphere soil and surrounding environments either by the leachates, root exudation or decomposition process of plant parts, and certain allelochemicals may contribute to the alteration of the microbial community, including rhizobia and mycorrhizal fungi, suppressing the regeneration process of native plant species through the inhibition of their germination and growth. Therefore, the allelopathy of I. cylindrica may support its invasiveness, naturalization and formation of large monospecific stands. This is the first review article focusing on the allelopathy of I. cylindrica.
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Affiliation(s)
- Hisashi Kato-Noguchi
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki 761-0795, Kagawa, Japan
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Wang C, Wang W, Sardans J, Ouyang L, Tong C, Asensio D, Gargallo-Garriga A, Wiesmeier M, Peñuelas J. Higher fluxes of C, N and P in plant/soil cycles associated with plant invasion in a subtropical estuarine wetland in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 730:139124. [PMID: 32388112 DOI: 10.1016/j.scitotenv.2020.139124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/28/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Invasion of plants in wetland ecosystems is often associated with changes in litter decomposition and in nutrient use, uptake and cycling between invasive and native plants. We studied litter decomposition rates, N and P release and elemental composition and stoichiometry during the invasion of Phragmites australis and Spartina alterniflora into native Cyperus malaccensis wetlands in the Minjiang River estuary (China). Aboveground litter in mono-specific stands decomposed faster for Cyperus malaccensis than for Spartina alterniflora and for Phragmites australis. Cyperus malaccensis litter decomposed slower under the stands of both invasive species. In contrast, the litter of both invasive species decomposed faster under Cyperus malaccesis stands. We observed that the invasion of these species was associated with an increased rate of aboveground litter decomposition and large absolute amounts of C, N and P released from the litter when litter from invasive species was mixed with that of native species. Our results suggest that the large nutrient release from litter during early stages of the invasion favored invasive species with larger size and higher nutrient-uptake capacity than the native species.
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Affiliation(s)
- Chun Wang
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fujian Normal University, Fuzhou 350007, China
| | - Weiqi Wang
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fujian Normal University, Fuzhou 350007, China; CSIC, Global Ecology CREAF-CSIC-UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain; CREAF, Cerdanyola del Valles, 08193 Barcelona, Catalonia, Spain.
| | - Jordi Sardans
- CSIC, Global Ecology CREAF-CSIC-UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain; CREAF, Cerdanyola del Valles, 08193 Barcelona, Catalonia, Spain.
| | - Linmei Ouyang
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fujian Normal University, Fuzhou 350007, China
| | - Chuan Tong
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fujian Normal University, Fuzhou 350007, China
| | - Dolores Asensio
- CSIC, Global Ecology CREAF-CSIC-UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain; CREAF, Cerdanyola del Valles, 08193 Barcelona, Catalonia, Spain
| | - Albert Gargallo-Garriga
- CSIC, Global Ecology CREAF-CSIC-UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain; CREAF, Cerdanyola del Valles, 08193 Barcelona, Catalonia, Spain
| | - Martin Wiesmeier
- TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Josep Peñuelas
- CSIC, Global Ecology CREAF-CSIC-UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain; CREAF, Cerdanyola del Valles, 08193 Barcelona, Catalonia, Spain
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Steinauer K, Jensen B, Strecker T, de Luca E, Scheu S, Eisenhauer N. Convergence of soil microbial properties after plant colonization of an experimental plant diversity gradient. BMC Ecol 2016; 16:19. [PMID: 27056681 PMCID: PMC4825091 DOI: 10.1186/s12898-016-0073-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 03/22/2016] [Indexed: 11/25/2022] Open
Abstract
Background Several studies have examined the effects of plant colonization on aboveground communities and processes. However, the effects of plant colonization on soil microbial communities are less known. We addressed this gap by studying effects of plant colonization within an experimental plant diversity gradient in subplots that had not been weeded for 2 and 5 years. This study was part of a long-term grassland biodiversity experiment (Jena Experiment) with a gradient in plant species richness (1, 2, 4, 8, 16, and 60 sown species per plot). We measured plant species richness and productivity (aboveground cover and biomass) as well as soil microbial basal respiration and biomass in non-weeded subplots and compared the results with those of weeded subplots of the same plots. Results After 2 and 5 years of plant colonization, the number of colonizing plant species decreased with increasing plant diversity, i.e., low-diversity plant communities were most vulnerable to colonization. Plant colonization offset the significant relationship between sown plant diversity and plant biomass production. In line with plant community responses, soil basal respiration and microbial biomass increased with increasing sown plant diversity in weeded subplots, but soil microbial properties converged in non-weeded subplots and were not significantly affected by the initial plant species richness gradient. Conclusion Colonizing plant species change the quantity and quality of inputs to the soil, thereby altering soil microbial properties. Thus, plant community convergence is likely to be rapidly followed by the convergence of microbial properties in the soil. Electronic supplementary material The online version of this article (doi:10.1186/s12898-016-0073-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Katja Steinauer
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany. .,Institute of Biology, Leipzig University, Johannisallee 21, 04103, Leipzig, Germany.
| | - Britta Jensen
- J. F. Blumenbach Institute of Zoology and Anthropology, Georg-August-University Göttingen, Berliner Straße 28, 37073, Göttingen, Germany
| | - Tanja Strecker
- J. F. Blumenbach Institute of Zoology and Anthropology, Georg-August-University Göttingen, Berliner Straße 28, 37073, Göttingen, Germany
| | - Enrica de Luca
- Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, 8057, Switzerland
| | - Stefan Scheu
- J. F. Blumenbach Institute of Zoology and Anthropology, Georg-August-University Göttingen, Berliner Straße 28, 37073, Göttingen, Germany
| | - Nico Eisenhauer
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany.,Institute of Biology, Leipzig University, Johannisallee 21, 04103, Leipzig, Germany
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Jo I, Fridley JD, Frank DA. More of the same? In situ leaf and root decomposition rates do not vary between 80 native and nonnative deciduous forest species. THE NEW PHYTOLOGIST 2016; 209:115-122. [PMID: 26333347 DOI: 10.1111/nph.13619] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 07/26/2015] [Indexed: 06/05/2023]
Abstract
Invaders often have greater rates of production and produce more labile litter than natives. The increased litter quantity and quality of invaders should increase nutrient cycling through faster litter decomposition. However, the limited number of invasive species that have been included in decomposition studies has hindered the ability to generalize their impacts on decomposition rates. Further, previous decomposition studies have neglected roots. We measured litter traits and decomposition rates of leaves for 42 native and 36 nonnative woody species, and those of fine roots for 23 native and 25 nonnative species that occur in temperate deciduous forests throughout the Eastern USA. Among the leaf and root traits that differed between native and invasive species, only leaf nitrogen was significantly associated with decomposition rate. However, native and nonnative species did not differ systematically in leaf and root decomposition rates. We found that among the parameters measured, litter decomposer activity was driven by litter chemical quality rather than tissue density and structure. Our results indicate that litter decomposition rate per se is not a pathway by which forest woody invasive species affect North American temperate forest soil carbon and nutrient processes.
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Affiliation(s)
- Insu Jo
- Department of Biology, Syracuse University, 107 College Place, Syracuse, NY, 13244, USA
| | - Jason D Fridley
- Department of Biology, Syracuse University, 107 College Place, Syracuse, NY, 13244, USA
| | - Douglas A Frank
- Department of Biology, Syracuse University, 107 College Place, Syracuse, NY, 13244, USA
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Estrada JA, Flory SL. Cogongrass (Imperata cylindrica) invasions in the US: Mechanisms, impacts, and threats to biodiversity. Glob Ecol Conserv 2015. [DOI: 10.1016/j.gecco.2014.10.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Schuster MJ, Dukes JS. Non-additive effects of invasive tree litter shift seasonal N release: a potential invasion feedback. OIKOS 2014. [DOI: 10.1111/oik.01078] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Michael J. Schuster
- Dept of Forestry and Natural Resources; Purdue Univ.; 715 West State Street West Lafayette IN 47907 USA
| | - Jeffrey S. Dukes
- Dept of Forestry and Natural Resources; Purdue Univ.; 715 West State Street West Lafayette IN 47907 USA
- Dept of Biological Sciences; Purdue Univ.; 15 West State Street West Lafayette IN 47907 USA
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BARBOSA FABIANAG, PILLAR VALÉRIOD, PALMER ANTHONYR, MELO ADRIANOS. Predicting the current distribution and potential spread of the exotic grassEragrostis planaNees in South America and identifying a bioclimatic niche shift during invasion. AUSTRAL ECOL 2012. [DOI: 10.1111/j.1442-9993.2012.02399.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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