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Barboza Bispo R, Teixeira do Amaral A, Pinto VB, de Oliveira Santos T, Jário de Lima V, Rohem Simão B, Fischer A, Naldrett MJ, Alvarez S. Unraveling the Mechanisms of Efficient Phosphorus Utilization in Popcorn ( Zea mays L. var. everta): Insights from Proteomic and Metabolite Analysis. J Proteome Res 2024. [PMID: 38648199 DOI: 10.1021/acs.jproteome.3c00772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
The expansion of agriculture and the need for sustainable practices drives breeders to develop plant varieties better adapted to abiotic stress such as nutrient deficiency, which negatively impacts yields. Phosphorus (P) is crucial for photosynthesis and plant growth, but its availability in the soil is often limited, hampering crop development. In this study, we examined the response of two popcorn inbred lines, L80 and P7, which have been characterized previously as P-use inefficient and P-use efficient, respectively, under low (stress) and high P (control) availability. Physiological measurements, proteomic analysis, and metabolite assays were performed to unravel the physiological and molecular responses associated with the efficient use of P in popcorn. We observed significant differences in protein abundances in response to the P supply between the two inbred lines. A total of 421 differentially expressed proteins (DEPs) were observed in L80 and 436 DEPs in P7. These proteins were involved in photosynthesis, protein biosynthesis, biosynthesis of secondary metabolites, and energy metabolism. In addition, flavonoids accumulated in higher abundance in P7. Our results help us understand the major components of P utilization in popcorn, providing new insights for popcorn molecular breeding programs.
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Affiliation(s)
- Rosimeire Barboza Bispo
- Laboratório de Melhoramento Genético Vegetal (LMGV), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Centro de Ciências e Tecnologias Agropecuárias (CCTA), 28.013-602, Campos dos Goytacazes, RJ, Brazil
| | - Antônio Teixeira do Amaral
- Laboratório de Melhoramento Genético Vegetal (LMGV), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Centro de Ciências e Tecnologias Agropecuárias (CCTA), 28.013-602, Campos dos Goytacazes, RJ, Brazil
| | - Vitor Batista Pinto
- Laboratório de Biologia Celular e Tecidual (LBCT), UENF, Centro de Biociências e Biotecnologia (CBB), 28.013-602, Campos dos Goytacazes, RJ, Brazil
| | - Talles de Oliveira Santos
- Laboratório de Melhoramento Genético Vegetal (LMGV), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Centro de Ciências e Tecnologias Agropecuárias (CCTA), 28.013-602, Campos dos Goytacazes, RJ, Brazil
| | - Valter Jário de Lima
- Laboratório de Melhoramento Genético Vegetal (LMGV), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Centro de Ciências e Tecnologias Agropecuárias (CCTA), 28.013-602, Campos dos Goytacazes, RJ, Brazil
| | - Bruna Rohem Simão
- Laboratório de Melhoramento Genético Vegetal (LMGV), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Centro de Ciências e Tecnologias Agropecuárias (CCTA), 28.013-602, Campos dos Goytacazes, RJ, Brazil
| | - Anne Fischer
- Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, Beadle Center, 1901 Vine St, University of Nebraska-Lincoln (UNL), Lincoln, Nebraska 68588, United States
| | - Michael J Naldrett
- Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, Beadle Center, 1901 Vine St, University of Nebraska-Lincoln (UNL), Lincoln, Nebraska 68588, United States
| | - Sophie Alvarez
- Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, Beadle Center, 1901 Vine St, University of Nebraska-Lincoln (UNL), Lincoln, Nebraska 68588, United States
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Shi J, Zhao B, Zhao L, Zha Y, Yu X, Yu B, Luo L, Wu J, Yue E. Facilitating Growth of Maize ( Zea mays L.) by Biostimulants: A Perspective from the Interaction between Root Transcriptome and Rhizosphere Microbiome. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:3415-3426. [PMID: 38325817 PMCID: PMC10886141 DOI: 10.1021/acs.jafc.3c09062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
The plant growth-promoting effects of biostimulants have been widely documented, while little is known about the intrinsic mechanism. In our study, a pot experiment was conducted to investigate the effects of biostimulants on maize, and the maize root transcriptome and rhizosphere microbiome were assessed. The physicochemical properties of the soil were significantly altered with various trends, and the growth and yield of maize were promoted by biostimulants. Sampling time and maize strain were the strongest factors that altered the rhizosphere microorganisms. Rhizosphere microbiota with biostimulant application exhibited high community robustness. Root transcriptome analysis suggested an altered expression profile induced by biostimulants and maize strains. An integrated correlation analysis demonstrated that phosphate and nitrate metabolism genes are tightly associated with some rhizosphere microbiota. These results implied the plant growth-promoting effects of biostimulants might act in a rhizosphere microorganism-dependent manner and help to expand the use of biostimulants in sustainable agriculture.
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Affiliation(s)
- Jiang Shi
- Institute of Crop and Ecology, Hangzhou Academy of Agricultural Sciences, Hangzhou, Zhejiang 310024, China
| | - Bo Zhao
- Institute of Biotechnology, Hangzhou Academy of Agricultural Sciences, Hangzhou, Zhejiang 310024, China
| | - Lin Zhao
- Institute of Crop and Ecology, Hangzhou Academy of Agricultural Sciences, Hangzhou, Zhejiang 310024, China
| | - Yan Zha
- Institute of Crop and Ecology, Hangzhou Academy of Agricultural Sciences, Hangzhou, Zhejiang 310024, China
| | - Xiangqun Yu
- Institute of Crop and Ecology, Hangzhou Academy of Agricultural Sciences, Hangzhou, Zhejiang 310024, China
| | - Bin Yu
- Hangzhou Agricultural Technology Extension Center, Hangzhou, Zhejiang 310020, China
| | - Letan Luo
- Institute of Crop and Ecology, Hangzhou Academy of Agricultural Sciences, Hangzhou, Zhejiang 310024, China
| | - Jianguo Wu
- College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Erkui Yue
- Institute of Crop and Ecology, Hangzhou Academy of Agricultural Sciences, Hangzhou, Zhejiang 310024, China
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Zhao Z, Zheng H, Wang M, Guo Y, Wang Y, Zheng C, Tao Y, Sun X, Qian D, Cao G, Zhu M, Liang M, Wang M, Gong Y, Li B, Wang J, Sun Y. Reshifting Na + from Shoots into Long Roots Is Associated with Salt Tolerance in Two Contrasting Inbred Maize ( Zea mays L.) Lines. PLANTS (BASEL, SWITZERLAND) 2023; 12:1952. [PMID: 37653869 PMCID: PMC10220590 DOI: 10.3390/plants12101952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/24/2023] [Accepted: 05/08/2023] [Indexed: 09/02/2023]
Abstract
Maize, as a glycophyte, is hypersensitive to salinity, but the salt response mechanism of maize remains unclear. In this study, the physiological, biochemical, and molecular responses of two contrasting inbred lines, the salt-tolerant QXH0121 and salt-sensitive QXN233 lines, were investigated in response to salt stress. Under salt stress, the tolerant QXH0121 line exhibited good performance, while in the sensitive QXN233 line, there were negative effects on the growth of the leaves and roots. The most important finding was that QXH0121 could reshift Na+ from shoots into long roots, migrate excess Na+ in shoots to alleviate salt damage to shoots, and also improve K+ retention in shoots, which were closely associated with the enhanced expression levels of ZmHAK1 and ZmNHX1 in QXH0121 compared to those in QXN233 under salt stress. Additionally, QXH0121 leaves accumulated more proline, soluble protein, and sugar contents and had higher SOD activity levels than those observed in QXN233, which correlated with the upregulation of ZmP5CR, ZmBADH, ZmTPS1, and ZmSOD4 in QXH0121 leaves. These were the main causes of the higher salt tolerance of QXH0121 in contrast to QXN233. These results broaden our knowledge about the underlying mechanism of salt tolerance in different maize varieties, providing novel insights into breeding maize with a high level of salt resistance.
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Affiliation(s)
- Zhenyang Zhao
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Hongxia Zheng
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China;
| | - Minghao Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Yaning Guo
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Yingfei Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Chaoli Zheng
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Ye Tao
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Xiaofeng Sun
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Dandan Qian
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Guanglong Cao
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Mengqian Zhu
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Mengting Liang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Mei Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Yan Gong
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Bingxiao Li
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Jinye Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
| | - Yanling Sun
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266237, China; (Z.Z.); (M.W.); (Y.G.); (Y.W.); (C.Z.); (Y.T.); (X.S.); (D.Q.); (G.C.); (M.Z.); (M.L.); (M.W.); (Y.G.); (B.L.); (J.W.)
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Khourchi S, Oukarroum A, Tika A, Delaplace P, Bargaz A. Polyphosphate application influences morpho-physiological root traits involved in P acquisition and durum wheat growth performance. BMC PLANT BIOLOGY 2022; 22:309. [PMID: 35754019 PMCID: PMC9235221 DOI: 10.1186/s12870-022-03683-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Among phosphate (P) fertilizers, polyphosphates (PolyPs) have shown promising results in terms of crop yield and plant P nutrition. However, compared to conventional P inputs, very little is known on the impact of PolyPs fertilizers on below- and above-ground plant functional traits involved in P acquisition. This study aims to evaluate agro-physiological responses of durum wheat variety ´Karim´ under different PolyPs applications. Three PolyPs fertilizers (PolyA, PolyB, and PolyC) versus one orthophosphate (OrthoP) were applied at three doses; 30 (D30), 60 (D60), and 90 (D90) kg P/ha under controlled conditions. The PolyPs (especially PolyB and PolyC) application at D60 significantly increased morphophysiological root traits (e.g., RL: 42 and 130%; RSA:40 and 60%), shoot inorganic P (Pi) content (159 and 88%), and root P acquisition efficiency (471 and 296%) under PolyB and PolyC, respectively compared to unfertilized plants. Above-ground physiological parameters, mainly nutrient acquisition, chlorophyll content and chlorophyll fluorescence parameters were also improved under PolyB and PolyA application at D60. A significant and positive correlation between shoot Pi content and rhizosphere soil acid phosphatase activity was observed, which reveal the key role of these enzymes in PolyPs (A and B) use efficiency. Furthermore, increased P uptake/RL ratio along with shoot Pi indicates more efficient P allocation to shoots with less investment in root biomass production under PolyPs (especially A and B). CONCLUSIONS Under our experimental conditions, these findings report positive impacts of PolyPs on wheat growth performance, particularly on photosynthesis and nutrient acquisition at D60, along with modulation of root morpho-physiological traits likely responsible of P acquisition efficiency.
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Affiliation(s)
- Said Khourchi
- Laboratory of Plant-Microbes Interactions, Agrobiosciences, Mohammed VI Polytechnic University, Ben Guerir, 43150, Rabat, Morocco.
- Terra Department, Plant Sciences Group, Gembloux Agro-Bio Tech, Université de Liège, B-5030, Gembloux, Belgium.
| | - Abdallah Oukarroum
- Laboratory of Plant-Microbes Interactions, Agrobiosciences, Mohammed VI Polytechnic University, Ben Guerir, 43150, Rabat, Morocco
| | - Asma Tika
- Laboratory of Plant-Microbes Interactions, Agrobiosciences, Mohammed VI Polytechnic University, Ben Guerir, 43150, Rabat, Morocco
| | - Pierre Delaplace
- Terra Department, Plant Sciences Group, Gembloux Agro-Bio Tech, Université de Liège, B-5030, Gembloux, Belgium
| | - Adnane Bargaz
- Laboratory of Plant-Microbes Interactions, Agrobiosciences, Mohammed VI Polytechnic University, Ben Guerir, 43150, Rabat, Morocco.
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Khourchi S, Elhaissoufi W, Loum M, Ibnyasser A, Haddine M, Ghani R, Barakat A, Zeroual Y, Rchiad Z, Delaplace P, Bargaz A. Phosphate solubilizing bacteria can significantly contribute to enhance P availability from polyphosphates and their use efficiency in wheat. Microbiol Res 2022; 262:127094. [PMID: 35749891 DOI: 10.1016/j.micres.2022.127094] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 06/02/2022] [Accepted: 06/10/2022] [Indexed: 11/16/2022]
Abstract
Rhizosphere microbes significantly enhance phosphorus (P) availability from a variety of unavailable P pools in agricultural soils. However, little is known about the contribution of root-associated microorganisms, notably P solubilizing bacteria (PSB), to enhance the use of polyphosphate (PolyP) fertilizers as well as the key mechanisms involved. This study assesses the ability of four PSB (Bacillus siamensis, Rahnella aceris, Pantoea hericii, Bacillus paramycoides) and their consortium (Cs) to enhance the release rate of available P from two types of PolyP ("PolyB" and "PolyC") with a focus on the key role of phosphatase enzyme activities and organic acids production. Wheat growth performance and P acquisition efficiency were evaluated in response to co-application of PSB and PolyP. Results showed that inoculation with PSB, notably Cs, significantly enhanced available P from PolyC, PolyB and tri-calcium P. Increased available P in response to inoculation with PSB significantly correlated with medium acidification, organic acids production (notably glycolic acid) and induced activities of acid phosphatase and pyrophosphatase. In planta, the co-application of PSB-PolyP improved wheat plant biomass, root growth and P acquisition, with best results obtained from Cs-PolyP co-application as compared to uninoculated and unfertilized plants. At seedling stage, the co-application of Cs-PolyP (PolyB and PolyC) enhanced root hairs length (125 % and 131 %), root length (26 % and 37 %) and root inorganic P (Pi) content (160 % and 182 %), respectively compared to uninoculated plants. Similarly, at tillering stage, plant biomass (35 % and 47 %), Pi content (43 % and 253 %), P translocation (215 % and 315 %) and soil phosphatases (213 % and 219 %) significantly improved under PolyB and PolyC application, respectively. Findings from this study demonstrate the key role of PSB to enhance the use of PolyP through production of organic acids and phosphatases, exhibiting differential traits patterns between the two PolyP. Improved wheat growth and root P acquisition in response to PSB-PolyP co-application can be attributed to induced rhizosphere processes leading to enhanced available P taken up by roots.
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Affiliation(s)
- Said Khourchi
- Mohammed VI Polytechnic University - AgroBioSciences - Plant & Soil Microbiome Sub-Program, Laboratory of Plant-Microbe Interactions, Ben Guerir 43150, Morocco; Université of Liège, Gembloux Agro-Bio Tech, Plant Sciences Department, Gembloux B-5030, Belgium.
| | - Wissal Elhaissoufi
- Mohammed VI Polytechnic University - AgroBioSciences - Plant & Soil Microbiome Sub-Program, Laboratory of Plant-Microbe Interactions, Ben Guerir 43150, Morocco; Center of Agrobiotechnology & Bioengineering, Research Unit Labeled CNRST, Faculty of Sciences and Techniques, Cadi Ayyad University, Marrakech 40000, Morocco
| | - Mohamed Loum
- Mohammed VI Polytechnic University - AgroBioSciences - Plant & Soil Microbiome Sub-Program, Laboratory of Plant-Microbe Interactions, Ben Guerir 43150, Morocco
| | - Ammar Ibnyasser
- Mohammed VI Polytechnic University - AgroBioSciences - Plant & Soil Microbiome Sub-Program, Laboratory of Plant-Microbe Interactions, Ben Guerir 43150, Morocco
| | - Meryem Haddine
- Mohammed VI Polytechnic University - AgroBioSciences - Plant & Soil Microbiome Sub-Program, Laboratory of Plant-Microbe Interactions, Ben Guerir 43150, Morocco
| | - Rachid Ghani
- Mohammed VI Polytechnic University - AgroBioSciences - Plant & Soil Microbiome Sub-Program, Laboratory of Plant-Microbe Interactions, Ben Guerir 43150, Morocco
| | - Abdellatif Barakat
- Mohammed VI Polytechnic University - AgroBioSciences - Plant & Soil Microbiome Sub-Program, Laboratory of Plant-Microbe Interactions, Ben Guerir 43150, Morocco; IATE, University of Montpellier, INRAE, Agro Institut, 34060 Montpellier, France
| | - Youssef Zeroual
- Situation Innovation, OCP Group, Jorf Lasfar, 24025 El Jadida, Morocco
| | - Zineb Rchiad
- Mohammed VI Polytechnic University, African Genome Center, Ben Guerir 43150, Morocco
| | - Pierre Delaplace
- Université of Liège, Gembloux Agro-Bio Tech, Plant Sciences Department, Gembloux B-5030, Belgium
| | - Adnane Bargaz
- Mohammed VI Polytechnic University - AgroBioSciences - Plant & Soil Microbiome Sub-Program, Laboratory of Plant-Microbe Interactions, Ben Guerir 43150, Morocco.
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Li D, Wang H, Wang M, Li G, Chen Z, Leiser WL, Weiß TM, Lu X, Wang M, Chen S, Chen F, Yuan L, Würschum T, Liu W. Genetic Dissection of Phosphorus Use Efficiency in a Maize Association Population under Two P Levels in the Field. Int J Mol Sci 2021; 22:9311. [PMID: 34502218 PMCID: PMC8430673 DOI: 10.3390/ijms22179311] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/22/2021] [Accepted: 08/25/2021] [Indexed: 11/24/2022] Open
Abstract
Phosphorus (P) deficiency is an important challenge the world faces while having to increase crop yields. It is therefore necessary to select maize (Zea may L.) genotypes with high phosphorus use efficiency (PUE). Here, we extensively analyzed the biomass, grain yield, and PUE-related traits of 359 maize inbred lines grown under both low-P and normal-P conditions. A significant decrease in grain yield per plant and biomass, an increase in PUE under low-P condition, as well as significant correlations between the two treatments were observed. In a genome-wide association study, 49, 53, and 48 candidate genes were identified for eleven traits under low-P, normal-P conditions, and in low-P tolerance index (phenotype under low-P divided by phenotype under normal-P condition) datasets, respectively. Several gene ontology pathways were enriched for the genes identified under low-P condition. In addition, seven key genes related to phosphate transporter or stress response were molecularly characterized. Further analyses uncovered the favorable haplotype for several core genes, which is less prevalent in modern lines but often enriched in a specific subpopulation. Collectively, our research provides progress in the genetic dissection and molecular characterization of PUE in maize.
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Affiliation(s)
- Dongdong Li
- Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education, Key Laboratory of Crop Genetic Improvement, Beijing Municipality, National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (D.L.); (H.W.); (M.W.); (G.L.); (X.L.); (M.W.); (S.C.)
| | - Haoying Wang
- Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education, Key Laboratory of Crop Genetic Improvement, Beijing Municipality, National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (D.L.); (H.W.); (M.W.); (G.L.); (X.L.); (M.W.); (S.C.)
| | - Meng Wang
- Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education, Key Laboratory of Crop Genetic Improvement, Beijing Municipality, National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (D.L.); (H.W.); (M.W.); (G.L.); (X.L.); (M.W.); (S.C.)
| | - Guoliang Li
- Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education, Key Laboratory of Crop Genetic Improvement, Beijing Municipality, National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (D.L.); (H.W.); (M.W.); (G.L.); (X.L.); (M.W.); (S.C.)
| | - Zhe Chen
- Key Laboratory of Plant-Soil Interaction, the Ministry of Education, Center for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; (Z.C.); (F.C.); (L.Y.)
| | - Willmar L. Leiser
- State Plant Breeding Institute, University of Hohenheim, 70593 Stuttgart, Germany; (W.L.L.); (T.M.W.)
| | - Thea Mi Weiß
- State Plant Breeding Institute, University of Hohenheim, 70593 Stuttgart, Germany; (W.L.L.); (T.M.W.)
- Institute of Plant Breeding, Seed Science and Population Genetics, University of Hohenheim, 70593 Stuttgart, Germany;
| | - Xiaohuan Lu
- Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education, Key Laboratory of Crop Genetic Improvement, Beijing Municipality, National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (D.L.); (H.W.); (M.W.); (G.L.); (X.L.); (M.W.); (S.C.)
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ming Wang
- Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education, Key Laboratory of Crop Genetic Improvement, Beijing Municipality, National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (D.L.); (H.W.); (M.W.); (G.L.); (X.L.); (M.W.); (S.C.)
| | - Shaojiang Chen
- Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education, Key Laboratory of Crop Genetic Improvement, Beijing Municipality, National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (D.L.); (H.W.); (M.W.); (G.L.); (X.L.); (M.W.); (S.C.)
| | - Fanjun Chen
- Key Laboratory of Plant-Soil Interaction, the Ministry of Education, Center for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; (Z.C.); (F.C.); (L.Y.)
| | - Lixing Yuan
- Key Laboratory of Plant-Soil Interaction, the Ministry of Education, Center for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; (Z.C.); (F.C.); (L.Y.)
| | - Tobias Würschum
- Institute of Plant Breeding, Seed Science and Population Genetics, University of Hohenheim, 70593 Stuttgart, Germany;
| | - Wenxin Liu
- Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education, Key Laboratory of Crop Genetic Improvement, Beijing Municipality, National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (D.L.); (H.W.); (M.W.); (G.L.); (X.L.); (M.W.); (S.C.)
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Shukla PS, Prithiviraj B. Ascophyllum nodosum Biostimulant Improves the Growth of Zea mays Grown Under Phosphorus Impoverished Conditions. FRONTIERS IN PLANT SCIENCE 2021; 11:601843. [PMID: 33488647 PMCID: PMC7820112 DOI: 10.3389/fpls.2020.601843] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 11/23/2020] [Indexed: 05/09/2023]
Abstract
Phosphorous is one of the major limiting factors determining plant growth. Current agricultural practices mainly rely on the use of chemical fertilizers posing threat to the ecosystem. In this study, the application of an Ascophyllum nodosum extract (ANE) in phosphorous (P)-limited conditions improved the fresh and dry weight of shoots and roots of Zea mays. ANE-treated Z. mays grown under P-limited conditions showed a higher P content than the control. ANE activated simultaneous responses, at multiple levels, in Z. mays grown under P-limited conditions as seen from the regulation of gene expression at the whole-plant level to specific biochemical responses on a subcellular level. ANE-supplemented Z. mays grown under P-limited conditions also showed reduced electrolyte leakage and lipid peroxidation by an improved membrane stability. ANE treatment reduced P-limitation-induced oxidative damage in Z. mays by reducing H2O2 andO 2 - accumulation. Furthermore, ANE also induced the accumulation of the total contents of soluble sugars, amino acids, phenolics, and flavonoids. Gene expression analysis suggested that ANE differentially modulated the expression of P-starvation responsive genes involved in metabolic, signal transduction, and developmental pathways in Z. mays. ANE also modulated the expression of genes involved in sugar, lipid, and secondary metabolism. Thus, this study illustrated the role of ANE in improving the productivity of Z. mays, an important crop, in P-limited conditions. Furthermore, it sets the framework to increase agricultural productivity in nutrient deficient soils using a sustainable, eco-friendly strategy.
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Affiliation(s)
| | - Balakrishnan Prithiviraj
- Marine Bio-Products Research Laboratory, Department of Plant, Food and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS, Canada
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