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Li Z, Zhao X, Gu X. Thermodynamic and kinetic modeling the interaction of goethite-ligand-metal ternary system. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 307:119462. [PMID: 35588960 DOI: 10.1016/j.envpol.2022.119462] [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: 11/22/2021] [Revised: 04/26/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Low-molecular-weight organic acids may significantly influence the mobility of metal in environment, but the kinetics are not fully understood and have not been quantified. In this study, the thermodynamic and kinetic effects of citric acid (CA) on the adsorption of Cd(II) and Ni(II) on goethite were investigated using batch-adsorption and stirred-flow experiments. A charge distribution and multisite complexation model (CD-MUSIC) and a thermodynamically based multi-rate kinetic model were employed to describe the adsorption behaviors. Two ternary surface complexes, (≡FeO)2CitMe and (≡FeOH)2MeCit2-, were involved in the adsorption. In addition, CA differed in its effects on Cd(II) and Ni(II) adsorption, enhancing Cd(II) adsorption but inhibiting Ni(II) adsorption at high levels. Kinetically, in the presence of CA, the adsorption of Cd(II) was faster than that of Ni(II). Increasing CA concentration led to faster Cd(II) adsorption, but resulted in the dissolution of the adsorbed Ni(II), possibly due to the much higher complexation constants of Ni-CA than of Cd-CA in aqueous phase. This finding implied that, in the rhizosphere, high level of CA may lead to more dissolution of Ni(II) than Cd(II); while in acidic ferrosol, CA may alleviate Cd(II) mobility and toxicity. The proposed mechanistic model sheds light on ion partition in the soil environment and may improve predictions thereof.
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Affiliation(s)
- Zipeng Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Xianlin Ave. 163, Nanjing, 210023, PR China.
| | - Xiaopeng Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Xianlin Ave. 163, Nanjing, 210023, PR China.
| | - Xueyuan Gu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Xianlin Ave. 163, Nanjing, 210023, PR China.
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2
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Influence of Sugarcane Variety on Rhizosphere Microbiota Under Irrigated and Water-Limiting Conditions. Curr Microbiol 2022; 79:246. [PMID: 35834135 DOI: 10.1007/s00284-022-02946-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 06/22/2022] [Indexed: 11/03/2022]
Abstract
Drought is one of the main problems linked to climate change that is faced by agriculture, affecting various globally important crops, including sugarcane. Environmentally sustainable strategies have been sought to mitigate the effects of climate change on crops. Among them, the use of beneficial microorganisms offers a promising approach. However, it is still necessary to understand the mechanisms that regulate plant-microorganism interactions, in normal situations and under stress. In this work, the rhizosphere metagenomes of two sugarcane varieties, one resistant and the other susceptible to drought, were compared under normal conditions and under water-limiting conditions. The results showed that for the drought-resistant sugarcane variety, bacteria belonging to the order Sphingomonadales and the family Xanthomonadaceae presented increased activities in terms of mobility, colonization, and cell growth. In contrast, the rhizosphere associated with the drought-sensitive variety exhibited increases of bacteria belonging to the family Polyangiaceae, and the genus Streptomyces, with modifications in DNA metabolism and ribosome binding proteins. The results pointed to variation in the rhizosphere microbiota that was modulated by the host plant genotype, revealing potential bacterial candidates that could be recruited to assist plants during water-limiting conditions.
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de Tombeur F, Cornelis JT, Lambers H. Silicon mobilisation by root-released carboxylates. TRENDS IN PLANT SCIENCE 2021; 26:1116-1125. [PMID: 34315662 DOI: 10.1016/j.tplants.2021.07.003] [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] [Received: 03/12/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Plants have evolved numerous strategies to acquire poorly available nutrients from soil, including the release of carboxylates from their roots. Silicon (Si) release from mineral dissolution increases in the presence of chelating substances, and recent evidence shows that leaf [Si] increases markedly in old phosphorus (P)-depleted soils, where many species exhibit carboxylate-releasing strategies, compared with younger P-richer soils. Here, we propose that root-released carboxylates, and more generally rhizosphere processes, play an overlooked role in plant Si accumulation by increasing soil Si mobilisation from minerals. We suggest that Si mobilisation is costly in terms of carbon but becomes cheaper if those costs are already met to acquire poorly available P. Uptake of the mobilised Si by roots will then depend on whether they express Si transporters.
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Affiliation(s)
- Félix de Tombeur
- TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium.
| | - Jean-Thomas Cornelis
- TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium; Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Hans Lambers
- School of Biological Sciences, The University of Western Australia, Crawley (Perth), WA 6009, Australia.
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Phosphorus-Rich Ash from Poultry Manure Combustion in a Fluidized Bed Reactor. MINERALS 2021. [DOI: 10.3390/min11070785] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The aim of this study was to examine the physico-chemical and phase characteristics of ash obtained in the process of the combustion of Polish poultry manure in a laboratory reactor with a bubbling fluidized bed. Three experiments, differing in the grain size and morphology of the raw material, the method of its dosing and the type of fluidized bed, were carried out. The contents of the main chemical components and trace elements in the obtained ash samples were determined using WDXRF, and the phase composition was examined through the XRD method. The morphology and the chemical composition of grains in a given micro-area using the SEM/EDS method were also investigated. The highest concentration of phosphorus (from 28.07% wt. to 29.71% wt. as P2O5 equivalent), the highest proportion of amorphous substance (from 56.7% wt. to 59.0% wt.) and the lowest content of unburned organic substance (LOI from 6.42% to 9.16%) (i.e., the best process efficiency), was obtained for the experiment in which the starting bed was quartz sand and poultry manure was fed to the reactor in the form of pellets. It has been calculated that in this case, the amorphous phase contains more than half of the phosphorus. The method of carrying out the combustion process has a significant impact on the phase composition and, consequently, on the availability of phosphorus.
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Almeida DS, Delai LB, Sawaya ACHF, Rosolem CA. Exudation of organic acid anions by tropical grasses in response to low phosphorus availability. Sci Rep 2020; 10:16955. [PMID: 33046762 PMCID: PMC7552410 DOI: 10.1038/s41598-020-73398-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 09/16/2020] [Indexed: 11/22/2022] Open
Abstract
It has been suggested that some tropical grasses can acquire phosphorus (P) from hematite and gypsite by exuding organic acid anions (OAs). However, it remains to be determined exactly which OAs could be involved in each case. The objective of this study was to verify the exudation OAs by ruzigrass (Urochloa ruziziensis), palisade grass (U. brizantha), and Guinea grass (Megathyrsus maximus) as a response to P deficiency. The grasses were grown in leachate columns with adequate and deficient P nutrient solutions. The concentration of OAs in the leacheate and root surface, as well as shoot and root dry matter, and P uptake were determined. Citrate, isocitrate, and malate concentration in leachates and root surfaces increased with P starvation, mainly for the Urochloa grasses. Oxalate exudation was similar for the grasses under adequate P supply, but was lower in Guinea grass under P starvation. Palisade grass showed a higher concentration of total OAs in the root surface than the other species due to a great production of oxalate and isocitrate. Palisade grass showed greater dry matter yields regardless of P deficiency, and Guinea grass always had the higher shoot:root ratio. Urochloa grasses have a higher capacity to cope with low P availability by exuding OAs along with a lower shoot:root ratio than Guinea grass.
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Affiliation(s)
- Danilo Silva Almeida
- Department of Crop Science, College of Agricultural Sciences, São Paulo State University, Botucatu, 18610-307, Brazil
| | - Lucas Benes Delai
- Department of Crop Science, College of Agricultural Sciences, São Paulo State University, Botucatu, 18610-307, Brazil
| | | | - Ciro Antonio Rosolem
- Department of Crop Science, College of Agricultural Sciences, São Paulo State University, Botucatu, 18610-307, Brazil.
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Abrahão A, de Britto Costa P, Teodoro GS, Lambers H, Nascimento DL, Adrián López de Andrade S, Ryan MH, Silva Oliveira R. Vellozioid roots allow for habitat specialization among rock‐ and soil‐dwelling Velloziaceae in
campos rupestres. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13479] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Anna Abrahão
- Departamento de Biologia Vegetal Institute of Biology University of Campinas – UNICAMP Campinas Brazil
- School of Biological Sciences University of Western Australia Crawley (Perth) WA Australia
- Institute of Soil Science and Land Evaluation University of Hohenheim Stuttgart Germany
| | - Patricia de Britto Costa
- Departamento de Biologia Vegetal Institute of Biology University of Campinas – UNICAMP Campinas Brazil
- School of Biological Sciences University of Western Australia Crawley (Perth) WA Australia
| | | | - Hans Lambers
- School of Biological Sciences University of Western Australia Crawley (Perth) WA Australia
| | - Diego L. Nascimento
- Geosciences Institute Universidade Estadual de Campinas Cidade Universitária Zeferino Vaz Campinas Brazil
| | | | - Megan H. Ryan
- School of Agriculture and Environment University of Western Australia Crawley (Perth) WA Australia
| | - Rafael Silva Oliveira
- Departamento de Biologia Vegetal Institute of Biology University of Campinas – UNICAMP Campinas Brazil
- School of Biological Sciences University of Western Australia Crawley (Perth) WA Australia
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7
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Do cluster roots of red alder play a role in nutrient acquisition from bedrock? Proc Natl Acad Sci U S A 2019; 116:11575-11576. [PMID: 31164427 DOI: 10.1073/pnas.1905336116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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8
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Teodoro GS, Lambers H, Nascimento DL, de Britto Costa P, Flores‐Borges DNA, Abrahão A, Mayer JLS, Sawaya ACHF, Ladeira FSB, Abdala DB, Pérez CA, Oliveira RS. Specialized roots of Velloziaceae weather quartzite rock while mobilizing phosphorus using carboxylates. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13324] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Grazielle Sales Teodoro
- Biology Institute Universidade Federal do Pará Guamá Belém Brazil
- Department of Plant Biology, Biology Institute, Universidade Estadual de Campinas Cidade Universitária Zeferino Vaz Campinas Brazil
| | - Hans Lambers
- School of Biological Sciences The University of Western Australia Crawley (Perth) Western Australia Australia
| | - Diego L. Nascimento
- Geosciences Institute, Universidade Estadual de Campinas Cidade Universitária Zeferino Vaz Campinas Brazil
| | - Patrícia de Britto Costa
- Department of Plant Biology, Biology Institute, Universidade Estadual de Campinas Cidade Universitária Zeferino Vaz Campinas Brazil
- School of Biological Sciences The University of Western Australia Crawley (Perth) Western Australia Australia
| | - Denisele N. A. Flores‐Borges
- Department of Plant Biology, Biology Institute, Universidade Estadual de Campinas Cidade Universitária Zeferino Vaz Campinas Brazil
| | - Anna Abrahão
- Department of Plant Biology, Biology Institute, Universidade Estadual de Campinas Cidade Universitária Zeferino Vaz Campinas Brazil
- School of Biological Sciences The University of Western Australia Crawley (Perth) Western Australia Australia
| | - Juliana L. S. Mayer
- Department of Plant Biology, Biology Institute, Universidade Estadual de Campinas Cidade Universitária Zeferino Vaz Campinas Brazil
| | - Alexandra C. H. F. Sawaya
- Department of Plant Biology, Biology Institute, Universidade Estadual de Campinas Cidade Universitária Zeferino Vaz Campinas Brazil
| | | | - Dalton Belchior Abdala
- Brazilian Synchrotron Light Laboratory (LNLS) Brazilian Center for Research in Energy and Materials (CNPEM) Campinas São Paulo Brazil
| | - Carlos A. Pérez
- Brazilian Synchrotron Light Laboratory (LNLS) Brazilian Center for Research in Energy and Materials (CNPEM) Campinas São Paulo Brazil
| | - Rafael S. Oliveira
- Department of Plant Biology, Biology Institute, Universidade Estadual de Campinas Cidade Universitária Zeferino Vaz Campinas Brazil
- School of Biological Sciences The University of Western Australia Crawley (Perth) Western Australia Australia
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9
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Le Stradic S, Fernandes GW, Buisson E. No recovery of campo rupestre
grasslands after gravel extraction: implications for conservation and restoration. Restor Ecol 2018. [DOI: 10.1111/rec.12713] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Soizig Le Stradic
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE); Université d'Avignon et des Pays de Vaucluse, UMR CNRS IRD Aix Marseille Université; IUT site Agroparc, BP 61207, 84911 Avignon Cedex 09 France
- Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais, Brazil
- Departamento de Botânica, Instituto de Biociências; Universidade Estadual Paulista (UNESP); Rio Claro São Paulo, Brazil
| | - Geraldo W. Fernandes
- Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais, Brazil
| | - Elise Buisson
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE); Université d'Avignon et des Pays de Vaucluse, UMR CNRS IRD Aix Marseille Université; IUT site Agroparc, BP 61207, 84911 Avignon Cedex 09 France
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10
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Abrahão A, Ryan MH, Laliberté E, Oliveira RS, Lambers H. Phosphorus- and nitrogen-acquisition strategies in two Bossiaea species (Fabaceae) along retrogressive soil chronosequences in south-western Australia. PHYSIOLOGIA PLANTARUM 2018; 163:323-343. [PMID: 29418005 DOI: 10.1111/ppl.12704] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 01/23/2018] [Accepted: 01/31/2018] [Indexed: 06/08/2023]
Abstract
During long-term ecosystem development and its associated decline in soil phosphorus (P) availability, the abundance of mycorrhizal plant species declines at the expense of non-mycorrhizal species with root specialisations for P-acquisition, such as massive exudation of carboxylates. Leaf manganese (Mn) concentration has been suggested as a proxy for such a strategy, Mn concentration being higher in non-mycorrhizal plants that release carboxylates than in mycorrhizal plants. Shifts in nitrogen (N)-acquisition strategies also occur; nodulation in legumes is expected at low N availability, when sufficient P is available. We investigated whether two congeneric legume species (Bossiaea linophylla and Bossiaea eriocarpa) occurring along two long-term chronosequences on the south-western Australian coast and grown in a glasshouse at varying N and P supply exhibited plasticity in nutrient-acquisition strategies. We hypothesised that the shifts in nutrient limitation and nutrient-acquisition strategies at the community level would also be found at the species level. Leaf N: P ratios and the responses to nutrient availability suggested that growth of both species exhibited P-limitation in all treatments, due to the very high leaf [N] of legumes afforded by symbiotic N-fixation. Mycorrhizal colonisation was not greater at higher P supply, and root exudation of carboxylates was not stimulated at low P supply; both were unrelated to leaf [Mn]. However, nodule production declined with increasing N supply. We conclude that intraspecific variation in nutrient-acquisition and use is low in these species, and that the variation at the community level, observed in previous studies, is likely driven by high-species turnover.
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Affiliation(s)
- Anna Abrahão
- Departamento de Biologia Vegetal, Institute of Biology, University of Campinas - UNICAMP, Campinas 13083-862, Brazil
- School of Biological Sciences, University of Western Australia, Crawley, WA 6009, Australia
| | - Megan H Ryan
- School of Agriculture and Environment, University of Western Australia, Crawley, WA 6009, Australia
| | - Etienne Laliberté
- School of Biological Sciences, University of Western Australia, Crawley, WA 6009, Australia
- Centre sur la biodiversité, Institut de recherche en biologie végétale, Département de sciences biologiques, Université de Montréal, Montréal, Québec H1X 2B1, Canada
| | - Rafael S Oliveira
- Departamento de Biologia Vegetal, Institute of Biology, University of Campinas - UNICAMP, Campinas 13083-862, Brazil
- School of Biological Sciences, University of Western Australia, Crawley, WA 6009, Australia
| | - Hans Lambers
- School of Biological Sciences, University of Western Australia, Crawley, WA 6009, Australia
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11
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Güsewell S, Schroth MH. How functional is a trait? Phosphorus mobilization through root exudates differs little between Carex species with and without specialized dauciform roots. THE NEW PHYTOLOGIST 2017; 215:1438-1450. [PMID: 28670743 DOI: 10.1111/nph.14674] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 05/21/2017] [Indexed: 06/07/2023]
Abstract
Root structures secreting carboxylates and phosphatases are thought to enhance a plant's phosphorus (P) acquisition. But do closely related species with and without such structures really differ in root exudation, P mobilization, or ecological niche? We investigated this by comparing 23 European Carex species with and without 'dauciform roots' (DRs). Plants grown in pots with sand were screened for DR formation, phosphatase activities, carboxylate exudation, and utilization of various organic and inorganic P compounds. Ecological niches were compared using ecological indicator values and nutrient concentrations of plant shoots in natural habitats. Species of subgenus Carex formed DRs, while species of subgenus Vignea did not. Species with DRs had higher root diesterase activity than species without DRs, exuded more citrate but less oxalate and less total carboxylates, and allocated less biomass to roots. Species with and without DRs showed similar growth responses to different forms of P and different amounts of P supplied; their natural habitats do not differ in soil fertility or degree of P limitation. Despite some differences in physiological function, DRs did not influence the P acquisition and nutritional niche of European Carex species, suggesting that species with and without DRs do not exhibit distinct P-acquisition strategies.
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Affiliation(s)
- Sabine Güsewell
- Institute of Integrative Biology, ETH Zurich, Universitätstrasse 16, 8092, Zürich, Switzerland
| | - Martin H Schroth
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Universitätstrasse 16, 8092, Zürich, Switzerland
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12
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Lambers H, Finnegan PM, Jost R, Plaxton WC, Shane MW, Stitt M. Phosphorus nutrition in Proteaceae and beyond. NATURE PLANTS 2015; 1:15109. [PMID: 27250542 DOI: 10.1038/nplants.2015.109] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Proteaceae in southwestern Australia have evolved on some of the most phosphorus-impoverished soils in the world. They exhibit a range of traits that allow them to both acquire and utilize phosphorus highly efficiently. This is in stark contrast with many model plants such as Arabidopsis thaliana and crop species, which evolved on soils where nitrogen is the major limiting nutrient. When exposed to low phosphorus availability, these plants typically exhibit phosphorus-starvation responses, whereas Proteaceae do not. This Review explores the traits that account for the very high efficiency of acquisition and use of phosphorus in Proteaceae, and explores which of these traits are promising for improving the phosphorus efficiency of crop plants.
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Affiliation(s)
- H Lambers
- School of Plant Biology and Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Crawley (Perth), Western Australia 6009, Australia
| | - P M Finnegan
- School of Plant Biology and Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Crawley (Perth), Western Australia 6009, Australia
| | - R Jost
- School of Plant Biology and Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Crawley (Perth), Western Australia 6009, Australia
| | - W C Plaxton
- Department of Biology and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - M W Shane
- School of Plant Biology and Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Crawley (Perth), Western Australia 6009, Australia
| | - M Stitt
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, D-14476 Potsdam-Golm, Germany
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Lambers H, Martinoia E, Renton M. Plant adaptations to severely phosphorus-impoverished soils. CURRENT OPINION IN PLANT BIOLOGY 2015; 25:23-31. [PMID: 25912783 DOI: 10.1016/j.pbi.2015.04.002] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 03/31/2015] [Accepted: 04/03/2015] [Indexed: 05/22/2023]
Abstract
Mycorrhizas play a pivotal role in phosphorus (P) acquisition of plant roots, by enhancing the soil volume that can be explored. Non-mycorrhizal plant species typically occur either in relatively fertile soil or on soil with a very low P availability, where there is insufficient P in the soil solution for mycorrhizal hyphae to be effective. Soils with a very low P availability are either old and severely weathered or relatively young with high concentrations of oxides and hydroxides of aluminium and iron that sorb P. In such soils, cluster roots and other specialised roots that release P-mobilising carboxylates are more effective than mycorrhizas. Cluster roots are ephemeral structures that release carboxylates in an exudative burst. The carboxylates mobilise sparingly-available sources of soil P. The relative investment of biomass in cluster roots and the amount of carboxylates that are released during the exudative burst differ between species on severely weathered soils with a low total P concentration and species on young soils with high total P concentrations but low P availability. Taking a modelling approach, we explore how the optimal cluster-root strategy depends on soil characteristics, thus offering insights for plant breeders interested in developing crop plants with optimal cluster-root strategies.
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Affiliation(s)
- Hans Lambers
- School of Plant Biology and Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Crawley (Perth), Western Australia 6009, Australia.
| | - Enrico Martinoia
- Institute of Plant Biology, University of Zurich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland
| | - Michael Renton
- School of Plant Biology and Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Crawley (Perth), Western Australia 6009, Australia
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14
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Alcantara S, Mello‐Silva R, Teodoro GS, Drequeceler K, Ackerly DD, Oliveira RS. Carbon assimilation and habitat segregation in resurrection plants: a comparison between desiccation‐ and non‐desiccation‐tolerant species of Neotropical Velloziaceae (Pandanales). Funct Ecol 2015. [DOI: 10.1111/1365-2435.12462] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Suzana Alcantara
- Depto. de Botânica Instituto de Biociências Universidade de São Paulo Rua do Matão 277, Cidade Universitária CEP 05508‐090 São Paulo SPBrazil
- Department of Integrative Biology and Jepson Herbarium University of California – Berkeley 3040 Valley Life Sciences Building Zip Code 94720‐3140 Berkeley CaliforniaUSA
| | - Renato Mello‐Silva
- Depto. de Botânica Instituto de Biociências Universidade de São Paulo Rua do Matão 277, Cidade Universitária CEP 05508‐090 São Paulo SPBrazil
| | - Grazielle S. Teodoro
- Depto. de Biologia Vegetal Instituto de Biologia Universidade Estadual de Campinas Caixa Postal 6109 CEP 13083‐970 Campinas SPBrazil
| | - Kamila Drequeceler
- Depto. de Botânica Instituto de Biociências Universidade de São Paulo Rua do Matão 277, Cidade Universitária CEP 05508‐090 São Paulo SPBrazil
| | - David D. Ackerly
- Department of Integrative Biology and Jepson Herbarium University of California – Berkeley 3040 Valley Life Sciences Building Zip Code 94720‐3140 Berkeley CaliforniaUSA
| | - Rafael S. Oliveira
- Depto. de Biologia Vegetal Instituto de Biologia Universidade Estadual de Campinas Caixa Postal 6109 CEP 13083‐970 Campinas SPBrazil
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Lambers H, Hayes PE, Laliberté E, Oliveira RS, Turner BL. Leaf manganese accumulation and phosphorus-acquisition efficiency. TRENDS IN PLANT SCIENCE 2015; 20:83-90. [PMID: 25466977 DOI: 10.1016/j.tplants.2014.10.007] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 10/13/2014] [Accepted: 10/20/2014] [Indexed: 05/18/2023]
Abstract
Plants that deploy a phosphorus (P)-mobilising strategy based on the release of carboxylates tend to have high leaf manganese concentrations ([Mn]). This occurs because the carboxylates mobilise not only soil inorganic and organic P, but also a range of micronutrients, including Mn. Concentrations of most other micronutrients increase to a small extent, but Mn accumulates to significant levels, even when plants grow in soil with low concentrations of exchangeable Mn availability. Here, we propose that leaf [Mn] can be used to select for genotypes that are more efficient at acquiring P when soil P availability is low. Likewise, leaf [Mn] can be used to screen for belowground functional traits related to nutrient-acquisition strategies among species in low-P habitats.
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Affiliation(s)
- Hans Lambers
- School of Plant Biology, The University of Western Australia, Stirling Highway, Crawley (Perth), WA 6009, Australia.
| | - Patrick E Hayes
- School of Plant Biology, The University of Western Australia, Stirling Highway, Crawley (Perth), WA 6009, Australia
| | - Etienne Laliberté
- School of Plant Biology, The University of Western Australia, Stirling Highway, Crawley (Perth), WA 6009, Australia
| | - Rafael S Oliveira
- School of Plant Biology, The University of Western Australia, Stirling Highway, Crawley (Perth), WA 6009, Australia; Departamento de Biologia Vegetal, Universidade Estadual de Campinas, Rua Monteiro Lobato 255, Campinas 13083-862, Brazil
| | - Benjamin L Turner
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancon, Republic of Panama; School of Plant Biology, The University of Western Australia, Stirling Highway, Crawley (Perth), WA 6009, Australia
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Oliveira RS, Galvão HC, de Campos MCR, Eller CB, Pearse SJ, Lambers H. Mineral nutrition of campos rupestres plant species on contrasting nutrient-impoverished soil types. THE NEW PHYTOLOGIST 2015; 205:1183-1194. [PMID: 25425486 DOI: 10.1111/nph.13175] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 10/13/2014] [Indexed: 05/13/2023]
Abstract
In Brazil, the campos rupestres occur over the Brazilian shield, and are characterized by acidic nutrient-impoverished soils, which are particularly low in phosphorus (P). Despite recognition of the campos rupestres as a global biodiversity hotspot, little is known about the diversity of P-acquisition strategies and other aspects of plant mineral nutrition in this region. To explore nutrient-acquisition strategies and assess aspects of plant P nutrition, we measured leaf P and nitrogen (N) concentrations, characterized root morphology and determined the percentage arbuscular mycorrhizal (AM) colonization of 50 dominant species in six communities, representing a gradient of soil P availability. Leaf manganese (Mn) concentration was measured as a proxy for carboxylate-releasing strategies. Communities on the most P-impoverished soils had the highest proportion of nonmycorrhizal (NM) species, the lowest percentage of mycorrhizal colonization, and the greatest diversity of root specializations. The large spectrum of leaf P concentration and variation in root morphologies show high functional diversity for nutritional strategies. Higher leaf Mn concentrations were observed in NM compared with AM species, indicating that carboxylate-releasing P-mobilizing strategies are likely to be present in NM species. The soils of the campos rupestres are similar to the most P-impoverished soils in the world. The prevalence of NM strategies indicates a strong global functional convergence in plant mineral nutrition strategies among severely P-impoverished ecosystems.
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Affiliation(s)
- Rafael S Oliveira
- Departamento de Biologia Vegetal, Universidade Estadual de Campinas, Rua Monteiro Lobato 255, Campinas, 13083-862, Brazil
- School of Plant Biology, University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA, 6009, Australia
| | - Hugo C Galvão
- Departamento de Biologia Vegetal, Universidade Estadual de Campinas, Rua Monteiro Lobato 255, Campinas, 13083-862, Brazil
| | - Mariana C R de Campos
- School of Plant Biology, University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA, 6009, Australia
| | - Cleiton B Eller
- Departamento de Biologia Vegetal, Universidade Estadual de Campinas, Rua Monteiro Lobato 255, Campinas, 13083-862, Brazil
| | - Stuart J Pearse
- School of Plant Biology, University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA, 6009, Australia
| | - Hans Lambers
- School of Plant Biology, University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA, 6009, Australia
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Neumann G. The Role of Ethylene in Plant Adaptations for Phosphate Acquisition in Soils - A Review. FRONTIERS IN PLANT SCIENCE 2015; 6:1224. [PMID: 26834759 PMCID: PMC4718997 DOI: 10.3389/fpls.2015.01224] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 12/18/2015] [Indexed: 05/20/2023]
Abstract
Although a role of ethylene in the regulation of senescence and plant stress responses in general has a long history, a possible involvement in the regulation of adaptive responses to nutrient deficiencies has been mainly investigated since the last two decades. In the case of plant responses to phosphate (Pi) starvation, ethylene was identified as a modulator of adaptive responses in root growth and morphology. The molecular base of these adaptations has been elucidated in supplementation studies with ethylene precursors and antagonists, as well as analysis of mutants and transgenic plants with modified ethylene biosynthesis and responsiveness, using mainly Arabidopsis thaliana as a model plant. However, increasing evidence suggests that apart from root growth responses, ethylene may be involved in various additional plant adaptations to Pi limitation including Pi mobilization in the rhizosphere, Pi uptake and internal Pi recycling. The ethylene-mediated responses are frequently characterized by high genotypic variability and may partially share common pathways in different nutrient limitations.
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