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Wang R, Funayama-Noguchi S, Xiong Z, Staudinger C, Wasaki J. Phosphorus absorption kinetics and exudation strategies of roots developed by three lupin species to tackle P deficiency. PLANTA 2023; 259:29. [PMID: 38133691 DOI: 10.1007/s00425-023-04307-9] [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: 07/21/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023]
Abstract
MAIN CONCLUSION Different lupin species exhibited varied biomass, P allocation, and physiological responses to P-deprivation. White and yellow lupins had higher carboxylate exudation rates, while blue lupin showed the highest phosphatase activity. White lupin (Lupinus albus) can produce specialized root structures, called cluster roots, which are adapted to low-phosphorus (P) soil. Blue lupin (L. angustifolius) and yellow lupin (L. luteus), which are two close relatives of white lupin, do not produce cluster roots. This study characterized plant responses to nutrient limitation by analyzing biomass accumulation and P distribution, absorption kinetics and root exudation in white, blue, and yellow lupins. Plants were grown in hydroponic culture with (64 µM NaH2PO4) or without P for 31 days. Under P limitation, more biomass was allocated to roots to improve P absorption. Furthermore, the relative growth rate of blue lupin showed the strongest inhibition. Under + P conditions, the plant total-P contents of blue lupin and yellow lupin were higher than that of white lupin. To elucidate the responses of lupins via the perspective of absorption kinetics and secretion analysis, blue and yellow lupins were confirmed to have stronger affinity and absorption capacity for orthophosphate after P-deprivation cultivation, whereas white lupin and yellow lupin had greater ability to secrete organic acids. The exudation of blue lupin had higher acid phosphatase activity. This study elucidated that blue lupin was more sensitive to P-scarcity stress and yellow had the greater tolerance of P-deficient condition than either of the other two lupin species. The three lupin species have evolved different adaptation strategies to cope with P deficiency.
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Affiliation(s)
- Ruixin Wang
- Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama 1-7-1, Higashi-Hiroshima, 739-8521, Japan
| | - Sachiko Funayama-Noguchi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-Ku, Tokyo, 113-8657, Japan
| | - Zilin Xiong
- Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama 1-7-1, Higashi-Hiroshima, 739-8521, Japan
| | - Christiana Staudinger
- Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama 1-7-1, Higashi-Hiroshima, 739-8521, Japan
- Department of Crop Sciences, University of Natural Resources and Life Sciences (BOKU), Konrad Lorenz Str. 24, 3430, Tulln, Austria
| | - Jun Wasaki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama 1-7-1, Higashi-Hiroshima, 739-8521, Japan.
- Seto Inland Sea Carbon Neutral Research Center, Hiroshima University, Higashi-Hiroshima, Japan.
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2
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Fan R, Hua J, Huang Y, Lin J, Ji W. What role do dauciform roots play? Responses of Carex filispica to trampling in alpine meadows based on functional traits. Ecol Evol 2023; 13:e9875. [PMID: 36911305 PMCID: PMC9994609 DOI: 10.1002/ece3.9875] [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: 09/24/2022] [Revised: 02/08/2023] [Accepted: 02/16/2023] [Indexed: 03/14/2023] Open
Abstract
In China, dauciform roots were hardly studied and only reported in alpine meadows, where sedges showed a different tendency from other functional groups such as grasses and forbs with degradation. In addition, Carex species were proved to have shifting scaling relationships among LES (leaf economics spectrum) traits under disturbance. So, are these unique performances of sedges related to the presence of dauciform roots, and if so, how? An alpine meadow dominated by Carex filispica in Baima Snow Mountain was selected, and quantitative trampling was performed (0, 50, 200, and 500 passes). The cover and dauciform root properties of Carex filispica were measured, as well as the morphological, chemical traits and biomass of leaves and roots, their correlations and the differences between individuals with and without dauciform roots were analyzed. After the trampling, individuals with dauciform roots showed multiple resource-acquisitive traits: Larger, thicker leaves, more aboveground biomass, higher efficiency of nutrient utilization, and slenderer roots. Additionally, they had a tighter correlation among belowground biomass, morphological and chemical traits, as well as dauciform root properties and morphology of leaves, suggesting that their traits were more related than those without dauciform roots. The presence of dauciform roots in Carex filispica was related to advantages in multiple traits after trampling, which is consistent with and might be responsible for the unique performances of sedges.
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Affiliation(s)
- Rong Fan
- College of Landscape Architecture and ArtsNorthwest A&F UniversityYanglingShaanxiChina
| | - Jinguo Hua
- College of Landscape Architecture and ArtsNorthwest A&F UniversityYanglingShaanxiChina
| | - Yulin Huang
- College of Landscape Architecture and ArtsNorthwest A&F UniversityYanglingShaanxiChina
| | - Jiayi Lin
- College of Landscape Architecture and ArtsNorthwest A&F UniversityYanglingShaanxiChina
| | - Wenli Ji
- College of Landscape Architecture and ArtsNorthwest A&F UniversityYanglingShaanxiChina
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3
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Ngo HTT, Cavagnaro TR, Jewell N, Brien CJ, Berger B, Watts-Williams SJ. High-throughput shoot phenotyping reveals temporal growth responses to nitrogen and inorganic and organic phosphorus sources in tomato. AOB PLANTS 2023; 15:plad011. [PMID: 37113305 PMCID: PMC10129286 DOI: 10.1093/aobpla/plad011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
The application of nitrogen (N) and phosphorus (P) fertilizers to soils is required to maintain crop yields, so the sufficient and timely delivery of nutrients to match crop demand is important in fertilizer management. We quantified temporal growth responses of tomato plants with different rates of N and P application using high-throughput shoot phenotyping. The tomato plants were grown in soil that had organic, inorganic or a combination of sources of P incorporated. Additional N was added to each pot at low and high rates, 13 days after planting. At the same rate of total P application, the inorganic P source resulted in greater shoot growth at the early time points. Later on, the plants supplied with organic or mixed P sources grew faster than those that received the inorganic P source, resulting in comparable shoot biomass in all treatments at the time of destructive harvest. The shoot phenotyping data demonstrated that readily available soil P was important for early tomato growth while available N was more important in later stages of vegetative growth. These results suggest that a fertilizer formulation of combined inorganic and organic P sources may be able to sustain rapid and great shoot growth in tomato plants, while also reducing additional N input.
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Affiliation(s)
- Hue T T Ngo
- The Waite Research Institute and School of Agriculture, Food and Wine, The University of Adelaide, PMB 1, Glen Osmond, South Australia, Australia
- Research Institute for Forest Ecology and Environment, Vietnamese Academy of Forest Sciences, Duc Thang, Tu Liem, Hanoi, Vietnam
| | - Timothy R Cavagnaro
- The Waite Research Institute and School of Agriculture, Food and Wine, The University of Adelaide, PMB 1, Glen Osmond, South Australia, Australia
| | - Nathaniel Jewell
- The Waite Research Institute and School of Agriculture, Food and Wine, The University of Adelaide, PMB 1, Glen Osmond, South Australia, Australia
- Australian Plant Phenomics Facility, The Plant Accelerator, The University of Adelaide, Glen Osmond, South Australia, Australia
| | - Christopher J Brien
- The Waite Research Institute and School of Agriculture, Food and Wine, The University of Adelaide, PMB 1, Glen Osmond, South Australia, Australia
- Australian Plant Phenomics Facility, The Plant Accelerator, The University of Adelaide, Glen Osmond, South Australia, Australia
| | - Bettina Berger
- The Waite Research Institute and School of Agriculture, Food and Wine, The University of Adelaide, PMB 1, Glen Osmond, South Australia, Australia
- Australian Plant Phenomics Facility, The Plant Accelerator, The University of Adelaide, Glen Osmond, South Australia, Australia
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4
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Transcription Factor IAA27 Positively Regulates P Uptake through Promoted Adventitious Root Development in Apple Plants. Int J Mol Sci 2022; 23:ijms232214029. [PMID: 36430505 PMCID: PMC9695701 DOI: 10.3390/ijms232214029] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
Phosphate (P) deficiency severely limits the growth and production of plants. Adventitious root development plays an essential role in responding to low phosphorus stress for apple plants. However, the molecular mechanisms regulating adventitious root growth and development in response to low phosphorus stress have remained elusive. In this study, a mutation (C-T) in the coding region of the apple AUXIN/INDOLE-3-ACETIC ACID 27 (IAA27) gene was identified. MdIAA27T-overexpressing transgenic apple improved the tolerance to phosphorus deficiency, which grew longer and denser adventitious roots and presented higher phosphorous content than the control plants under low phosphorus conditions, while the overexpression of MdIAA27C displayed the opposite trend. Moreover, the heterologous overexpression of MdIAA27 in tobacco yielded the same results, supporting the aforementioned findings. In vitro and in vivo assays showed that MdIAA27 directly interacted with AUXIN RESPONSE FACTOR (ARF8), ARF26 and ARF27, which regulated Small Auxin-Up RNA 76 (MdSAUR76) and lateral organ boundaries domain 16 (MdLBD16) transcription. The mutation in IAA27 resulted in altered interaction modes, which in turn promoted the release of positive ARFs to upregulate SAUR76 and LBD16 expression in low phosphorus conditions. Altogether, our studies provide insights into how the allelic variation of IAA27 affects adventitious root development in response to low phosphorus stress.
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Monei N, Hitch M, Heim J, Pourret O, Heilmeier H, Wiche O. Effect of substrate properties and phosphorus supply on facilitating the uptake of rare earth elements (REE) in mixed culture cropping systems of Hordeum vulgare, Lupinus albus and Lupinus angustifolius. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:57172-57189. [PMID: 35349058 PMCID: PMC9395493 DOI: 10.1007/s11356-022-19775-x] [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: 11/26/2021] [Accepted: 03/13/2022] [Indexed: 05/13/2023]
Abstract
This study presents how phosphate (P) availability and intercropping may influence the migration of rare earth elements (REEs) in legume-grass associations. In a replacement model, Hordeum vulgare was intercropped with 11% Lupinus albus and 11% Lupinus angustifolius. They were cultivated on two substrates, A (pH = 7.8) and B (pH = 6.6), and treated with 1.5 g P m-2 or 3 g P m-2. Simultaneously, a greenhouse experiment was conducted to quantify carboxylate release. There, one group of L. albus and L. angustifolius was supplied with either 200 µmol L-1 P or 20 µmol L-1 P. L. albus released higher amounts of carboxylates at low P supply than L. angustifolius, while L. angustifolius showed the opposite response. Plants cultivated on substrate B accumulated substantially higher amounts of nutrients and REE, compared to substrate A. Higher P supply did not influence the leaf and stem P concentrations of H. vulgare. Addition of P decreased REE accumulation in barley monocultures on alkaline soil A. However, when H. vulgare was cultivated in mixed culture with L. angustifolius on alkaline substrate A with high P supply, the accumulation of REE in H. vulgare significantly increased. Conversely, on acidic substrate B, intercropping with L. albus decreased REE accumulation in H. vulgare. Our findings suggest a predominant effect of soil properties on the soil-plant transfer of REEs. However, in plant communities and within a certain soil environment, interspecific root interactions determined by species-specific strategies related to P acquisition in concert with the plant's nutrient supply impact REE fluxes between neighbouring plants.
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Affiliation(s)
- Nthati Monei
- Institute of Geology, Tallinn University of Technology, Tallinn, Estonia
- Biology/Ecology Unit, Institute of Biosciences, Technische Universität Bergakademie Freiberg, Freiberg, Germany
| | - Michael Hitch
- Institute of Geology, Tallinn University of Technology, Tallinn, Estonia
- Western Australian School of Mines, Curtin University, Bentley, Australia
| | - Juliane Heim
- Environmental Microbiology Group, Institute of Biosciences, Technische Universität Bergakademie Freiberg, Freiberg, Germany
| | | | - Hermann Heilmeier
- Biology/Ecology Unit, Institute of Biosciences, Technische Universität Bergakademie Freiberg, Freiberg, Germany
| | - Oliver Wiche
- Biology/Ecology Unit, Institute of Biosciences, Technische Universität Bergakademie Freiberg, Freiberg, Germany.
- AGHYLE, UniLaSalle, Beauvais, France.
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6
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Funayama-Noguchi S, Shibata M, Noguchi K, Terashima I. Effects of root morphology, respiration and carboxylate exudation on carbon economy in two non-mycorrhizal lupines under phosphorus deficiency. PLANT, CELL & ENVIRONMENT 2021; 44:598-612. [PMID: 33099780 DOI: 10.1111/pce.13925] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 10/05/2020] [Accepted: 10/18/2020] [Indexed: 06/11/2023]
Abstract
Under phosphorus (P) deficiency, Lupinus albus develops cluster roots that allow efficient P acquisition, while L. angustifolius without cluster roots also grows well. Both species are non-mycorrhizal. We quantitatively examined the carbon budgets to investigate the different strategies of these species. Biomass allocation, respiratory rates, protein amounts and carboxylate exudation rates were examined in hydroponically-grown plants treated with low (1 μM; P1) or high (100 μM; P100) P. At P1, L. albus formed cluster roots, and L. angustifolius increased biomass allocation to the roots. The respiratory rates of the roots were faster in L. albus than in L. angustifolius. The protein amounts of the non-phosphorylating alternative oxidase and uncoupling protein were greater in the cluster roots of L. albus at P1 than in the roots at P100, but similar between the P treatments in L. angustifolius roots. At P1, L. albus exuded carboxylates at a faster rate than L. angustifolius. The carbon budgets at P1 were surprisingly similar between the two species, which is attributed to the contrasting root growth and development strategies. L. albus developed cluster roots with rapid respiratory and carboxylate exudation rates, while L. angustifolius developed a larger root system with slow respiratory and exudation rates.
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Affiliation(s)
- Sachiko Funayama-Noguchi
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Masaru Shibata
- Faculty of Education, Yamaguchi University, Yamaguchi, Japan
| | - Ko Noguchi
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Ichiro Terashima
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
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7
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Li YT, Liu MJ, Li Y, Liu P, Zhao SJ, Gao HY, Zhang ZS. Photoprotection by mitochondrial alternative pathway is enhanced at heat but disabled at chilling. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 104:403-415. [PMID: 32683757 DOI: 10.1111/tpj.14931] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 05/02/2023]
Abstract
The mitochondrial alternative pathway (AP) represents an important photoprotective mechanism for the chloroplast, but the temperature sensitivity of its photoprotective role is unknown. In this study, using the aox1a Arabidopsis mutant, the photoprotective role of the AP was verified under various temperatures, and the mechanism underlying the temperature sensitivity of the AP's photoprotective role was clarified. It was observed that the photoprotective role of the AP increased with rising temperature but was absent at low temperature. The photoprotective role of the AP was severely reduced under non-photorespiratory conditions. Disturbance of the AP inhibited the conversion of glycine to serine in mitochondria, which may restrain upstream photorespiratory metabolism and aggravate photoinhibition. With rising temperatures, photorespiration accelerated and the restraint of photorespiration caused by disturbance of the AP also increased, determining the temperature sensitivity of the AP's photoprotective role. We also verified that not only the AP but also the cytochrome pathway in mitochondria contributes to photoprotection by maintaining photorespiration.
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Affiliation(s)
- Yu-Ting Li
- State Key Lab of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong Province, China
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong Province, China
| | - Mei-Jun Liu
- Key laboratory of Grassland Resources and Ecology of Xinjiang, College of Grassland and Environment Science, Xinjiang Agricultural University, Urumqi, Xinjiang, 830052, China
| | - Ying Li
- State Key Lab of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong Province, China
| | - Peng Liu
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong Province, China
| | - Shi-Jie Zhao
- State Key Lab of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong Province, China
| | - Hui-Yuan Gao
- State Key Lab of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong Province, China
| | - Zi-Shan Zhang
- State Key Lab of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong Province, China
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8
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Touhami D, McDowell RW, Condron LM. Role of Organic Anions and Phosphatase Enzymes in Phosphorus Acquisition in the Rhizospheres of Legumes and Grasses Grown in a Low Phosphorus Pasture Soil. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1185. [PMID: 32932934 PMCID: PMC7570192 DOI: 10.3390/plants9091185] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 11/16/2022]
Abstract
Rhizosphere processes play a critical role in phosphorus (P) acquisition by plants and microbes, especially under P-limited conditions. Here, we investigated the impacts of nutrient addition and plant species on plant growth, rhizosphere processes, and soil P dynamics. In a glasshouse experiment, blue lupin (Lupinus angustifolius), white clover (Trifolium repens L.), perennial ryegrass (Lolium perenne L.), and wheat (Triticum aestivum L.) were grown in a low-P pasture soil for 8 weeks with and without the single and combined addition of P (33 mg kg-1) and nitrogen (200 mg kg-1). Phosphorus addition increased plant biomass and total P content across plant species, as well as microbial biomass P in white clover and ryegrass. Alkaline phosphatase activity was higher for blue lupin. Legumes showed higher concentrations of organic anions compared to grasses. After P addition, the concentrations of organic anions increased by 11-,10-, 5-, and 2-fold in the rhizospheres of blue lupin, white clover, wheat, and ryegrass, respectively. Despite the differences in their chemical availability (as assessed by P fractionation), moderately labile inorganic P and stable organic P were the most depleted fractions by the four plant species. Inorganic P fractions were depleted similarly between the four plant species, while blue lupin exhibited a strong depletion of stable organic P. Our findings suggest that organic anions were not related to the acquisition of inorganic P for legumes and grasses. At the same time, alkaline phosphatase activity was associated with the mobilization of stable organic P for blue lupin.
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Affiliation(s)
- Driss Touhami
- Faculty of Agriculture and Life Sciences, P.O. Box 85084, Lincoln University, Lincoln 7647, Christchurch, New Zealand; (R.W.M.); (L.M.C.)
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Richard W. McDowell
- Faculty of Agriculture and Life Sciences, P.O. Box 85084, Lincoln University, Lincoln 7647, Christchurch, New Zealand; (R.W.M.); (L.M.C.)
- AgResearch Limited, Lincoln Research Centre, Private Bag 4749, Christchurch, New Zealand
| | - Leo M. Condron
- Faculty of Agriculture and Life Sciences, P.O. Box 85084, Lincoln University, Lincoln 7647, Christchurch, New Zealand; (R.W.M.); (L.M.C.)
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Ortíz J, Sanhueza C, Romero-Munar A, Hidalgo-Castellanos J, Castro C, Bascuñán-Godoy L, Coba de la Peña T, López-Gómez M, Florez-Sarasa I, Del-Saz NF. In Vivo Metabolic Regulation of Alternative Oxidase under Nutrient Deficiency-Interaction with Arbuscular Mycorrhizal Fungi and Rhizobium Bacteria. Int J Mol Sci 2020; 21:E4201. [PMID: 32545597 PMCID: PMC7349880 DOI: 10.3390/ijms21124201] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/05/2020] [Accepted: 06/10/2020] [Indexed: 02/02/2023] Open
Abstract
The interaction of the alternative oxidase (AOX) pathway with nutrient metabolism is important for understanding how respiration modulates ATP synthesis and carbon economy in plants under nutrient deficiency. Although AOX activity reduces the energy yield of respiration, this enzymatic activity is upregulated under stress conditions to maintain the functioning of primary metabolism. The in vivo metabolic regulation of AOX activity by phosphorus (P) and nitrogen (N) and during plant symbioses with Arbuscular mycorrhizal fungi (AMF) and Rhizobium bacteria is still not fully understood. We highlight several findings and open questions concerning the in vivo regulation of AOX activity and its impact on plant metabolism during P deficiency and symbiosis with AMF. We also highlight the need for the identification of which metabolic regulatory factors of AOX activity are related to N availability and nitrogen-fixing legume-rhizobia symbiosis in order to improve our understanding of N assimilation and biological nitrogen fixation.
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Affiliation(s)
- José Ortíz
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, 4030000 Concepción, Chile; (J.O.); (C.S.); (C.C.); (L.B.-G.)
| | - Carolina Sanhueza
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, 4030000 Concepción, Chile; (J.O.); (C.S.); (C.C.); (L.B.-G.)
| | - Antònia Romero-Munar
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur. Sector los Choapinos, 2940000 Rengo, Chile;
| | - Javier Hidalgo-Castellanos
- Department of Plant Physiology, Faculty of sciences, University of Granada, 18071 Granada, Spain; (J.H.-C.); (M.L.-G.)
| | - Catalina Castro
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, 4030000 Concepción, Chile; (J.O.); (C.S.); (C.C.); (L.B.-G.)
| | - Luisa Bascuñán-Godoy
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, 4030000 Concepción, Chile; (J.O.); (C.S.); (C.C.); (L.B.-G.)
| | | | - Miguel López-Gómez
- Department of Plant Physiology, Faculty of sciences, University of Granada, 18071 Granada, Spain; (J.H.-C.); (M.L.-G.)
| | - Igor Florez-Sarasa
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain;
| | - Néstor Fernández Del-Saz
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, 4030000 Concepción, Chile; (J.O.); (C.S.); (C.C.); (L.B.-G.)
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10
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Xia Z, He Y, Yu L, Lv R, Korpelainen H, Li C. Sex-specific strategies of phosphorus (P) acquisition in Populus cathayana as affected by soil P availability and distribution. THE NEW PHYTOLOGIST 2020; 225:782-792. [PMID: 31487045 DOI: 10.1111/nph.16170] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 08/24/2019] [Indexed: 06/10/2023]
Abstract
Soil phosphorus (P) availability and its distribution influence plant growth and productivity, but how they affect the growth dynamics and sex-specific P acquisition strategies of dioecious plant species is poorly understood. In this study, the impact of soil P availability and its distribution on dioecious Populus cathayana was characterized. P. cathayana males and females were grown under three levels of P supply, and with homogeneous or heterogeneous P distribution. Females had a greater total root length, specific root length (SRL), biomass and foliar P concentration under high P supply. Under P deficiency, males had a smaller root system than females but a greater exudation of soil acid phosphatase, and a higher colonization rate and arbuscular mycorrhizal hyphal biomass, suggesting a better capacity to mine P and a stronger association with arbuscular mycorrhizal fungi to forage P. Heterogeneous P distribution enhanced growth and root length density (RLD) in females. Female root proliferation in P-rich patches was related to increased foliar P assimilation. Localized P application for increasing P availability did not enhance the biomass accumulation and the morphological plasticity of roots in males, but it raised hyphal biomass. The findings herein indicate that sex-specific strategies in P acquisition relate to root morphology, root exudation and mycorrhizal symbioses, and they may contribute to sex-specific resource utilization patterns and niche segregation.
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Affiliation(s)
- Zhichao Xia
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, Zhejiang, China
| | - Yue He
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, Zhejiang, China
| | - Lei Yu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, Zhejiang, China
| | - Rubing Lv
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, Zhejiang, China
| | - Helena Korpelainen
- Department of Agricultural Sciences, Viikki Plant Science Centre, University of Helsinki, PO Box 27, Helsinki, FI-00014, Finland
| | - Chunyang Li
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, Zhejiang, China
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