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Siqueira JA, Zsögön A, Fernie AR, Nunes-Nesi A, Araújo WL. Does day length matter for nutrient responsiveness? Trends Plant Sci 2023; 28:1113-1123. [PMID: 37268488 DOI: 10.1016/j.tplants.2023.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 04/11/2023] [Accepted: 04/24/2023] [Indexed: 06/04/2023]
Abstract
For over 2500 years, considerable agronomic interest has been paid to soil fertility. Both crop domestication and the Green Revolution shifted photoperiodism and the circadian clock in cultivated species, although this contributed to an increase in the demand for chemical fertilisers. Thus, the uptake of nutrients depends on light signalling, whereas diel growth and circadian rhythms are affected by nutrient levels. Here, we argue that day length and circadian rhythms may be central regulators of the uptake and usage of nutrients, also modulating responses to toxic elements (e.g., aluminium and cadmium). Thus, we suggest that knowledge in this area might assist in developing next-generation crops with improved uptake and use efficiency of nutrients.
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Affiliation(s)
- João Antonio Siqueira
- National Institute of Science and Technology on Plant Physiology under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil.
| | - Agustin Zsögön
- National Institute of Science and Technology on Plant Physiology under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Adriano Nunes-Nesi
- National Institute of Science and Technology on Plant Physiology under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Wagner L Araújo
- National Institute of Science and Technology on Plant Physiology under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil.
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Westerband AC, Wright IJ, Maire V, Paillassa J, Prentice IC, Atkin OK, Bloomfield KJ, Cernusak LA, Dong N, Gleason SM, Guilherme Pereira C, Lambers H, Leishman MR, Malhi Y, Nolan RH. Coordination of photosynthetic traits across soil and climate gradients. Glob Chang Biol 2023; 29:856-873. [PMID: 36278893 PMCID: PMC10098586 DOI: 10.1111/gcb.16501] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
"Least-cost theory" posits that C3 plants should balance rates of photosynthetic water loss and carboxylation in relation to the relative acquisition and maintenance costs of resources required for these activities. Here we investigated the dependency of photosynthetic traits on climate and soil properties using a new Australia-wide trait dataset spanning 528 species from 67 sites. We tested the hypotheses that plants on relatively cold or dry sites, or on relatively more fertile sites, would typically operate at greater CO2 drawdown (lower ratio of leaf internal to ambient CO2 , Ci :Ca ) during light-saturated photosynthesis, and at higher leaf N per area (Narea ) and higher carboxylation capacity (Vcmax 25 ) for a given rate of stomatal conductance to water vapour, gsw . These results would be indicative of plants having relatively higher water costs than nutrient costs. In general, our hypotheses were supported. Soil total phosphorus (P) concentration and (more weakly) soil pH exerted positive effects on the Narea -gsw and Vcmax 25 -gsw slopes, and negative effects on Ci :Ca . The P effect strengthened when the effect of climate was removed via partial regression. We observed similar trends with increasing soil cation exchange capacity and clay content, which affect soil nutrient availability, and found that soil properties explained similar amounts of variation in the focal traits as climate did. Although climate typically explained more trait variation than soil did, together they explained up to 52% of variation in the slope relationships and soil properties explained up to 30% of the variation in individual traits. Soils influenced photosynthetic traits as well as their coordination. In particular, the influence of soil P likely reflects the Australia's geologically ancient low-relief landscapes with highly leached soils. Least-cost theory provides a valuable framework for understanding trade-offs between resource costs and use in plants, including limiting soil nutrients.
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Affiliation(s)
- Andrea C. Westerband
- Faculty of Science and EngineeringSchool of Natural SciencesMacquarie UniversityNorth RydeNew South WalesAustralia
| | - Ian J. Wright
- Faculty of Science and EngineeringSchool of Natural SciencesMacquarie UniversityNorth RydeNew South WalesAustralia
- Hawkesbury Institute for the EnvironmentWestern Sydney UniversityPenrithNew South WalesAustralia
| | - Vincent Maire
- Département des Sciences de l'environnementUniversité du Québec à Trois‐RivièresTrois‐RivièresQuébecCanada
| | - Jennifer Paillassa
- Département des Sciences de l'environnementUniversité du Québec à Trois‐RivièresTrois‐RivièresQuébecCanada
| | - Iain Colin Prentice
- Faculty of Science and EngineeringSchool of Natural SciencesMacquarie UniversityNorth RydeNew South WalesAustralia
- Georgina Mace Centre for the Living PlanetImperial College LondonAscotUK
- Department of Earth System ScienceTsinghua UniversityBeijingChina
| | - Owen K. Atkin
- Australian Research Council Centre of Excellence in Plant Energy BiologyResearch School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | | | - Lucas A. Cernusak
- College of Science and EngineeringJames Cook UniversityCairnsQueenslandAustralia
| | - Ning Dong
- Faculty of Science and EngineeringSchool of Natural SciencesMacquarie UniversityNorth RydeNew South WalesAustralia
- Georgina Mace Centre for the Living PlanetImperial College LondonAscotUK
| | - Sean M. Gleason
- USDA‐ARS Water Management and Systems Research UnitFort CollinsColoradoUSA
| | - Caio Guilherme Pereira
- Department of Civil and Environmental EngineeringMassachusetts Institute of TechnologyCambridgeMassachusettsUSA
| | - Hans Lambers
- School of Biological SciencesUniversity of Western AustraliaPerthWestern AustraliaAustralia
| | - Michelle R. Leishman
- Faculty of Science and EngineeringSchool of Natural SciencesMacquarie UniversityNorth RydeNew South WalesAustralia
| | - Yadvinder Malhi
- School of Geography and the EnvironmentEnvironmental Change InstituteUniversity of OxfordOxfordUK
| | - Rachael H. Nolan
- Hawkesbury Institute for the EnvironmentWestern Sydney UniversityPenrithNew South WalesAustralia
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Urmi TA, Rahman MM, Islam MM, Islam MA, Jahan NA, Mia MAB, Akhter S, Siddiqui MH, Kalaji HM. Integrated Nutrient Management for Rice Yield, Soil Fertility, and Carbon Sequestration. Plants (Basel) 2022; 11:plants11010138. [PMID: 35009141 PMCID: PMC8747502 DOI: 10.3390/plants11010138] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 12/31/2021] [Accepted: 12/31/2021] [Indexed: 05/14/2023]
Abstract
Reliance on inorganic fertilizers with less or no use of organic fertilizers has impaired the productivity of soils worldwide. Therefore, the present study was conducted to quantify the effects of integrated nutrient management on rice yield, nutrient use efficiency, soil fertility, and carbon (C) sequestration in cultivated land. The experiment was designed with seven treatments comprising of a zero input control, recommended inorganic fertilizers (RD), poultry manure (PM) (5 t ha-1) + 50% RD, PM (2.5 t ha-1) + 75% RD, vermicompost (VC) (5 t ha-1) + 50% RD, VC (2.5 t ha-1) + 75% RD, and farmers' practice (FP) with three replications that were laid out in a randomized complete block design. The highest grain yield (6.16-6.27 t ha-1) was attained when VC and PM were applied at the rate of 2.5 t ha-1 along with 75% RD. Uptake of nutrients and their subsequent use efficiencies appeared higher and satisfactory from the combined application of organic and inorganic fertilizers. The addition of organic fertilizer significantly influenced the organic carbon, total carbon, total nitrogen, ammonium nitrogen, nitrate nitrogen, soil pH, phosphorus, potassium, sulfur, calcium, and magnesium contents in post-harvest soil, which indicated enhancement of soil fertility. The maximum value of the organic carbon stock (18.70 t ha-1), total carbon stock (20.81 t ha-1), and organic carbon sequestration (1.75 t ha-1) was observed in poultry manure at the rate of 5 t ha-1 with 50% RD. The soil bulk density decreased slightly more than that of the control, which indicated the improvement of the physical properties of soil using organic manures. Therefore, regular nourishment of soil with organic and inorganic fertilizers might help rejuvenate the soils and ensure agricultural sustainability.
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Affiliation(s)
- Tahmina Akter Urmi
- Department of Soil Science, Faculty of Agriculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh; (T.A.U.); (M.M.R.)
| | - Md. Mizanur Rahman
- Department of Soil Science, Faculty of Agriculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh; (T.A.U.); (M.M.R.)
| | - Md. Moshiul Islam
- Department of Agronomy, Faculty of Agriculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
- Correspondence: ; Tel.: +88-01712132019
| | - Md. Ariful Islam
- Department of Agriculture, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh; (M.A.I.); (N.A.J.)
| | - Nilufar Akhtar Jahan
- Department of Agriculture, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh; (M.A.I.); (N.A.J.)
| | - Md. Abdul Baset Mia
- Department of Crop Botany, Faculty of Agriculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh;
| | - Sohela Akhter
- Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur 1701, Bangladesh;
| | - Manzer H. Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Hazem M. Kalaji
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences SGGW, 159 Nowoursynowska 159, 02-776 Warsaw, Poland;
- Institute of Technology and Life Sciences, National Research Institute, Falenty, Al. Hrabska 3, 05-090 Raszyn, Poland
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Yan S, Hu Q, Wei Y, Jiang Q, Yin M, Dong M, Shen J, Du X. Calcium nutrition nanoagent rescues tomatoes from mosaic virus disease by accelerating calcium transport and activating antiviral immunity. Front Plant Sci 2022; 13:1092774. [PMID: 36561462 PMCID: PMC9764000 DOI: 10.3389/fpls.2022.1092774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 11/24/2022] [Indexed: 05/04/2023]
Abstract
As an essential structural, metabolic and signaling element, calcium shows low remobilization from old to young tissues in plants, restricting the nutrient-use efficiency and control efficacy against mosaic virus disease. Nanotechnology has been applied to prevent/minimize nutrient losses and improve the accessibility of poorly-available nutrients. Herein, the current study applied a star polycation (SPc) to prepare a calcium nutrition nanoagent. The SPc could assemble with calcium glycinate through hydrogen bond and Van der Waals force, forming stable spherical particles with nanoscale size (17.72 nm). Transcriptomic results revealed that the calcium glycinate/SPc complex could activate the expression of many transport-related genes and disease resistance genes in tomatoes, suggesting the enhanced transport and antiviral immunity of SPc-loaded calcium glycinate. Reasonably, the calcium transport was accelerated by 3.17 times into tomato leaves with the help of SPc, and the protective effect of calcium glycinate was remarkably improved to 77.40% and 67.31% toward tomato mosaic virus with the help of SPc after the third and fifth applications. Furthermore, SPc-loaded calcium glycinate could be applied to increase the leaf photosynthetic rate and control the unusual fast growth of tomatoes. The current study is the first success to apply nano-delivery system for enhanced calcium transport and antiviral immunity, which is beneficial for increasing nutrient-use efficiency and shows good prospects for field application.
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Affiliation(s)
- Shuo Yan
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
| | - Qian Hu
- Development Center for Science and Technology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Ying Wei
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
| | - Qinhong Jiang
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
| | - Meizhen Yin
- State Key Laboratory of Chemical Resource Engineering, Beijing Lab of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Min Dong
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
| | - Jie Shen
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
- *Correspondence: Xiangge Du, ; Jie Shen,
| | - Xiangge Du
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
- *Correspondence: Xiangge Du, ; Jie Shen,
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Geng Y, Cao G, Wang L, Wang M, Huang J. Can drip irrigation under mulch be replaced with shallow-buried drip irrigation in spring maize production systems in semiarid areas of northern China? J Sci Food Agric 2021; 101:1926-1934. [PMID: 32914438 DOI: 10.1002/jsfa.10808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 08/01/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND In recent years, shallow-buried drip irrigation in spring maize production has gradually replaced drip irrigation under plastic films and has become a common irrigation method in semiarid areas of northern China. RESULT Two years of field experiments were carried out in the semiarid area of western Jilin province to compare the two drip irrigation methods in the spring maize production system. The treatments included MW1 (drip irrigation under mulch + moderate irrigation amount), MW2 (drip irrigation under mulch + high irrigation amount), SM1 (shallow-buried drip irrigation + moderate irrigation amount), and SM2 (shallow-buried drip irrigation + high irrigation amount). The maize yields were significantly higher under mulch than under shallow-buried drip irrigation, but there was no interaction between mulch and the irrigation amount. Drip irrigation under mulch greatly improved spring maize N, P and K uptake compared with that under shallow-buried drip irrigation. The agronomic-use efficiency, recovery-use efficiency, and partial factor productivity were ranked in the order of MW2 > MW1 > SW2 > SW1. The water-use efficiency of drip irrigation under mulch was 7.44% and 6.82% higher than that of shallow-buried drip irrigation under the moderate and high irrigation levels, respectively. However, considering the costs of the plastic mulch, there was no significant (P < 0.05) difference in economic benefits between the SW and MW treatments. CONCLUSION Drip irrigation under plastic film provides greater advantages for production, but shallow-buried drip irrigation may be a suitable method for farmers until fertigation technology is further optimized and the problem of plastic film pollution is solved. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Yuhui Geng
- College of Resources and Environment, Jilin Agricultural University, Changchun, China
| | - Guojun Cao
- College of Resources and Environment, Jilin Agricultural University, Changchun, China
| | - Lichun Wang
- Institute of Agricultural Environment and Resources Research, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Meng Wang
- Institute of Agricultural Environment and Resources Research, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Jinxin Huang
- College of Resources and Environment, Jilin Agricultural University, Changchun, China
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Zhang D, Lyu Y, Li H, Tang X, Hu R, Rengel Z, Zhang F, Whalley WR, Davies WJ, Cahill JF, Shen J. Neighbouring plants modify maize root foraging for phosphorus: coupling nutrients and neighbours for improved nutrient-use efficiency. New Phytol 2020; 226:244-253. [PMID: 31536638 DOI: 10.1111/nph.16206] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 09/03/2019] [Indexed: 05/12/2023]
Abstract
Nutrient distribution and neighbours can impact plant growth, but how neighbours shape root-foraging strategy for nutrients is unclear. Here, we explore new patterns of plant foraging for nutrients as affected by neighbours to improve nutrient acquisition. Maize (Zea mays) was grown alone (maize), or with maize (maize/maize) or faba bean (Vicia faba) (maize/faba bean) as a neighbour on one side and with or without a phosphorus (P)-rich zone on the other in a rhizo-box experiment. Maize demonstrated root avoidance in maize/maize, with reduced root growth in 'shared' soil, and increased growth away from its neighbours. Conversely, maize proliferated roots in the proximity of neighbouring faba bean roots that had greater P availability in the rhizosphere (as a result of citrate and acid phosphatase exudation) compared with maize roots. Maize proliferated more roots, but spent less time to reach, and grow out of, the P patches away from neighbours in the maize/maize than in the maize/faba bean experiment. Maize shoot biomass and P uptake were greater in the heterogeneous P treatment with maize/faba bean than with maize/maize system. The foraging strategy of maize roots is an integrated function of heterogeneous distribution of nutrients and neighbouring plants, thus improving nutrient acquisition and maize growth. Understanding the foraging patterns is critical for optimizing nutrient management in crops.
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Affiliation(s)
- Deshan Zhang
- Department of Plant Nutrition, Key Laboratory of Plant-Soil Interactions, China Agricultural University, Ministry of Education, Beijing, 100193, China
| | - Yang Lyu
- Department of Plant Nutrition, Key Laboratory of Plant-Soil Interactions, China Agricultural University, Ministry of Education, Beijing, 100193, China
| | - Hongbo Li
- Department of Plant Nutrition, Key Laboratory of Plant-Soil Interactions, China Agricultural University, Ministry of Education, Beijing, 100193, China
| | - Xiaoyan Tang
- Department of Plant Nutrition, Key Laboratory of Plant-Soil Interactions, China Agricultural University, Ministry of Education, Beijing, 100193, China
| | - Ran Hu
- Department of Plant Nutrition, Key Laboratory of Plant-Soil Interactions, China Agricultural University, Ministry of Education, Beijing, 100193, China
| | - Zed Rengel
- Soil Science & Plant Nutrition, UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6009, Australia
| | - Fusuo Zhang
- Department of Plant Nutrition, Key Laboratory of Plant-Soil Interactions, China Agricultural University, Ministry of Education, Beijing, 100193, China
| | - William R Whalley
- Rothamsted Research, West Common, Harpenden, Hertfordshire, AL5 2JQ, UK
| | - William J Davies
- Lancaster Environment Centre, University of Lancaster, Lancaster, LA1 4YQ, UK
| | - James F Cahill
- Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2E9, Canada
| | - Jianbo Shen
- Department of Plant Nutrition, Key Laboratory of Plant-Soil Interactions, China Agricultural University, Ministry of Education, Beijing, 100193, China
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Di Benedetto NA, Campaniello D, Bevilacqua A, Cataldi MP, Sinigaglia M, Flagella Z, Corbo MR. Isolation, Screening, and Characterization of Plant-Growth-Promoting Bacteria from Durum Wheat Rhizosphere to Improve N and P Nutrient Use Efficiency. Microorganisms 2019; 7:E541. [PMID: 31717409 PMCID: PMC6920805 DOI: 10.3390/microorganisms7110541] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/01/2019] [Accepted: 11/04/2019] [Indexed: 11/16/2022] Open
Abstract
The main goal of this paper was to select promising microorganisms which could potentially act as plant-growth-promoting bacteria (PGPB) for durum wheat of Foggia County. At this scope, a new statistical framework, based on multivariate analyses and the evaluation of the statistical distribution of each trait, was used. Four hundred and seventy-four isolates were isolated from the rhizosphere of durum wheat in Foggia County and preliminarily screened as a function of four target indices (ammonium production, siderophores production, P-solubilization, and nitrification). After this step, the number of strains was reduced and the remaining isolates were tested through a quantitative approach, to assess the production of IAA (indole acetic acid), P-mineralization, and nitrification. In this second step, the cut-off was based on the whole population trend by evaluating for each trait the medians and quartiles. As a result, 16 promising isolates were selected and identified by 16S rDNA sequencing (Bacillus, Pseudomonas, Stenotrophomonas, and Lysinibacillus). The last step of this research was a preliminary validation in a growth chamber on eight strains. As screening and simple indices, two quantitative measures were chosen. The main result was the selection of at least three isolates (6P, 20P, and 25A) for a future field validation. They increased biomass and height by respectively 50% and 25%.
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Affiliation(s)
| | | | - Antonio Bevilacqua
- Department of the Science of Agriculture, Food and Environment (SAFE), University of Foggia, 71122 Foggia, Italy; (N.A.D.B.); (D.C.); (M.P.C.); (M.S.)
| | | | | | - Zina Flagella
- Department of the Science of Agriculture, Food and Environment (SAFE), University of Foggia, 71122 Foggia, Italy; (N.A.D.B.); (D.C.); (M.P.C.); (M.S.)
| | - Maria Rosaria Corbo
- Department of the Science of Agriculture, Food and Environment (SAFE), University of Foggia, 71122 Foggia, Italy; (N.A.D.B.); (D.C.); (M.P.C.); (M.S.)
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Rose TJ, Impa SM, Rose MT, Pariasca-Tanaka J, Mori A, Heuer S, Johnson-Beebout SE, Wissuwa M. Enhancing phosphorus and zinc acquisition efficiency in rice: a critical review of root traits and their potential utility in rice breeding. Ann Bot 2013; 112:331-45. [PMID: 23071218 PMCID: PMC3698374 DOI: 10.1093/aob/mcs217] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Accepted: 08/24/2012] [Indexed: 05/18/2023]
Abstract
BACKGROUND Rice is the world's most important cereal crop and phosphorus (P) and zinc (Zn) deficiency are major constraints to its production. Where fertilizer is applied to overcome these nutritional constraints it comes at substantial cost to farmers and the efficiency of fertilizer use is low. Breeding crops that are efficient at acquiring P and Zn from native soil reserves or fertilizer sources has been advocated as a cost-effective solution, but would benefit from knowledge of genes and mechanisms that confer enhanced uptake of these nutrients by roots. SCOPE This review discusses root traits that have been linked to P and Zn uptake in rice, including traits that increase mobilization of P/Zn from soils, increase the volume of soil explored by roots or root surface area to recapture solubilized nutrients, enhance the rate of P/Zn uptake across the root membrane, and whole-plant traits that affect root growth and nutrient capture. In particular, this review focuses on the potential for these traits to be exploited through breeding programmes to produce nutrient-efficient crop cultivars. CONCLUSIONS Few root traits have so far been used successfully in plant breeding for enhanced P and Zn uptake in rice or any other crop. Insufficient genotypic variation for traits or the failure to enhance nutrient uptake under realistic field conditions are likely reasons for the limited success. More emphasis is needed on field studies in mapping populations or association panels to identify those traits and underlying genes that are able to enhance nutrient acquisition beyond the level already present in most cultivars.
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Affiliation(s)
- T. J. Rose
- Southern Cross Plant Science, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia
| | - S. M. Impa
- Crop and Environmental Sciences Division, International Rice Research Institute (IRRI), DAPO Bob 7777, Metro Manila, Philippines
| | - M. T. Rose
- School of Biological Sciences, Monash University, Clayton, VIC 3800, Australia
| | - J. Pariasca-Tanaka
- Japan International Research Center for Agricultural Sciences (JIRCAS), Stable Food Production Program, 1-1 Ohwashi Tsukuba, Ibaraki 305-8686, Japan
| | - A. Mori
- Japan International Research Center for Agricultural Sciences (JIRCAS), Stable Food Production Program, 1-1 Ohwashi Tsukuba, Ibaraki 305-8686, Japan
| | - S. Heuer
- Plant Breeding, Genetics and Biotechnology Division, International Rice Research Institute (IRRI), DAPO Bob 7777, Metro Manila, Philippines
| | - S. E. Johnson-Beebout
- Crop and Environmental Sciences Division, International Rice Research Institute (IRRI), DAPO Bob 7777, Metro Manila, Philippines
| | - M. Wissuwa
- Japan International Research Center for Agricultural Sciences (JIRCAS), Stable Food Production Program, 1-1 Ohwashi Tsukuba, Ibaraki 305-8686, Japan
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