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Kovalev MA, Gladysh NS, Bogdanova AS, Bolsheva NL, Popchenko MI, Kudryavtseva AV. Editing Metabolism, Sex, and Microbiome: How Can We Help Poplar Resist Pathogens? Int J Mol Sci 2024; 25:1308. [PMID: 38279306 PMCID: PMC10816636 DOI: 10.3390/ijms25021308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/14/2024] [Accepted: 01/19/2024] [Indexed: 01/28/2024] Open
Abstract
Poplar (Populus) is a genus of woody plants of great economic value. Due to the growing economic importance of poplar, there is a need to ensure its stable growth by increasing its resistance to pathogens. Genetic engineering can create organisms with improved traits faster than traditional methods, and with the development of CRISPR/Cas-based genome editing systems, scientists have a new highly effective tool for creating valuable genotypes. In this review, we summarize the latest research data on poplar diseases, the biology of their pathogens and how these plants resist pathogens. In the final section, we propose to plant male or mixed poplar populations; consider the genes of the MLO group, transcription factors of the WRKY and MYB families and defensive proteins BbChit1, LJAMP2, MsrA2 and PtDef as the most promising targets for genetic engineering; and also pay attention to the possibility of microbiome engineering.
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Affiliation(s)
- Maxim A. Kovalev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (M.A.K.); (N.S.G.); (A.S.B.); (N.L.B.); (M.I.P.)
- Department of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Natalya S. Gladysh
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (M.A.K.); (N.S.G.); (A.S.B.); (N.L.B.); (M.I.P.)
| | - Alina S. Bogdanova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (M.A.K.); (N.S.G.); (A.S.B.); (N.L.B.); (M.I.P.)
- Institute of Agrobiotechnology, Russian State Agrarian University—Moscow Timiryazev Agricultural Academy, 127434 Moscow, Russia
| | - Nadezhda L. Bolsheva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (M.A.K.); (N.S.G.); (A.S.B.); (N.L.B.); (M.I.P.)
| | - Mikhail I. Popchenko
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (M.A.K.); (N.S.G.); (A.S.B.); (N.L.B.); (M.I.P.)
| | - Anna V. Kudryavtseva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (M.A.K.); (N.S.G.); (A.S.B.); (N.L.B.); (M.I.P.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia
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Gladysh NS, Bogdanova AS, Kovalev MA, Krasnov GS, Volodin VV, Shuvalova AI, Ivanov NV, Popchenko MI, Samoilova AD, Polyakova AN, Dmitriev AA, Melnikova NV, Karpov DS, Bolsheva NL, Fedorova MS, Kudryavtseva AV. Culturable Bacterial Endophytes of Wild White Poplar ( Populus alba L.) Roots: A First Insight into Their Plant Growth-Stimulating and Bioaugmentation Potential. BIOLOGY 2023; 12:1519. [PMID: 38132345 PMCID: PMC10740426 DOI: 10.3390/biology12121519] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/06/2023] [Accepted: 12/09/2023] [Indexed: 12/23/2023]
Abstract
The white poplar (Populus alba L.) has good potential for a green economy and phytoremediation. Bioaugmentation using endophytic bacteria can be considered as a safe strategy to increase poplar productivity and its resistance to toxic urban conditions. The aim of our work was to find the most promising strains of bacterial endophytes to enhance the growth of white poplar in unfavorable environmental conditions. To this end, for the first time, we performed whole-genome sequencing of 14 bacterial strains isolated from the tissues of the roots of white poplar in different geographical locations. We then performed a bioinformatics search to identify genes that may be useful for poplar growth and resistance to environmental pollutants and pathogens. Almost all endophytic bacteria obtained from white poplar roots are new strains of known species belonging to the genera Bacillus, Corynebacterium, Kocuria, Micrococcus, Peribacillus, Pseudomonas, and Staphylococcus. The genomes of the strains contain genes involved in the enhanced metabolism of nitrogen, phosphorus, and metals, the synthesis of valuable secondary metabolites, and the detoxification of heavy metals and organic pollutants. All the strains are able to grow on media without nitrogen sources, which indicates their ability to fix atmospheric nitrogen. It is concluded that the strains belonging to the genus Pseudomonas and bacteria of the species Kocuria rosea have the best poplar growth-stimulating and bioaugmentation potential, and the roots of white poplar are a valuable source for isolation of endophytic bacteria for possible application in ecobiotechnology.
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Affiliation(s)
- Natalya S. Gladysh
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
| | - Alina S. Bogdanova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
- Institute of Agrobiotechnology, Russian State Agrarian University—Moscow Timiryazev Agricultural Academy, 127434 Moscow, Russia
| | - Maxim A. Kovalev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
| | - George S. Krasnov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia
| | - Vsevolod V. Volodin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia
| | - Anastasia I. Shuvalova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
| | - Nikita V. Ivanov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
- Institute of Agrobiotechnology, Russian State Agrarian University—Moscow Timiryazev Agricultural Academy, 127434 Moscow, Russia
| | - Mikhail I. Popchenko
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
- Institute of Geography, Russian Academy of Sciences, Staromonetny Pereulok, 29/4, 119017 Moscow, Russia
| | - Aleksandra D. Samoilova
- Faculty of Soil Science, Lomonosov Moscow State University, Leninskie Gory, 1/12, 119234 Moscow, Russia; (A.D.S.); (A.N.P.)
| | - Aleksandra N. Polyakova
- Faculty of Soil Science, Lomonosov Moscow State University, Leninskie Gory, 1/12, 119234 Moscow, Russia; (A.D.S.); (A.N.P.)
| | - Alexey A. Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia
| | - Nataliya V. Melnikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia
| | - Dmitry S. Karpov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia
| | - Nadezhda L. Bolsheva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
| | - Maria S. Fedorova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
| | - Anna V. Kudryavtseva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia; (N.S.G.); (A.S.B.); (M.A.K.); (G.S.K.); (V.V.V.); (A.I.S.); (N.V.I.); (M.I.P.); (A.A.D.); (N.V.M.); (D.S.K.); (N.L.B.); (M.S.F.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str., 32, 119991 Moscow, Russia
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Guo Q, Zhu Y, Korpelainen H, Niinemets Ü, Li C. How does plant sex alter microbiota assembly in dioecious plants? Trends Microbiol 2023; 31:894-902. [PMID: 37120361 DOI: 10.1016/j.tim.2023.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 05/01/2023]
Abstract
Plant microbiota can greatly impact plant growth, defense, and health in different environments. Thus, it might be evolutionarily beneficial for plants to be able to control processes related to microbiota assembly. Dioecious plant species display sexual dimorphism in morphology, physiology, and immunity. These differences imply that male and female individuals might differently regulate their microbiota, but the role of sex in microbiota assembly has been largely neglected so far. Here, we introduce the mechanism of how sex controls microbiota in plants analogically to the sex regulation of gut microbiota in animals, in particular in humans. We argue that plant sex imposes selective pressure on filtering and constructing microbiota in the rhizosphere, phyllosphere, and endosphere along the soil-plant continuum. Since male plants are more resistant than female plants to environmental stresses, we suggest that a male host forms more stable and resistant plant microbiota that cooperate more effectively with the host to resist stresses. Male and female plants can distinguish whether a plant is of the same or different sex, and males can alleviate stress-caused damage in females. The impact of a male host on microbiota would protect female plants from unfavorable environments.
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Affiliation(s)
- Qingxue Guo
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Yuanjing Zhu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Helena Korpelainen
- Department of Agricultural Sciences, Viikki Plant Science Centre, University of Helsinki, P.O. Box 27, FI-00014, Finland
| | - Ülo Niinemets
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51006, Tartu, Estonia
| | - Chunyang Li
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
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Lin T, Tang J, Li S, Li S, Han S, Liu Y, Yang C, Chen G, Chen L, Zhu T. Drought stress-mediated differences in phyllosphere microbiome and associated pathogen resistance between male and female poplars. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:1100-1113. [PMID: 37177875 DOI: 10.1111/tpj.16283] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 05/04/2023] [Accepted: 05/10/2023] [Indexed: 05/15/2023]
Abstract
Phyllosphere-associated microbes play a crucial role in plant-pathogen interactions while their composition and diversity are strongly influenced by drought stress. As dioecious plant species exhibited secondary dimorphism between the two sexes in response to drought stress, whether such difference will lead to sex-specific differences in phyllosphere microbiome and associated pathogen resistance between male and female conspecifics is still unknown. In this study, we subjected female and male full siblings of a dioecious poplar species to a short period of drought treatment followed by artificial infection of a leaf pathogenic fungus. Our results showed that male plants grew better than females with or without drought stress. Female control plants had more leaf lesion area than males after pathogen infection, whereas drought stress reversed such a difference. Further correlation and in vitro toxicity tests suggested that drought-mediated sexual differences in pathogen resistance between the two plant sexes could be attributed to the shifts in structure and function of phyllosphere-associated microbiome rather than the amount of leaf main defensive chemicals contained in plant leaves. Supportively, the microbiome analysis through high-throughput sequencing indicated that female phyllosphere enriched a higher abundance of ecologically beneficial microbes that serve as biological plant protectants, while males harbored abundant phytopathogens under drought-stressed conditions. The results could provide potential implications for the selection of suitable poplar sex to plants in drought or semi-drought habitats.
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Affiliation(s)
- Tiantian Lin
- Key Laboratory of National Forestry & Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Key Laboratory of Forest Protection of Sichuan Education Department, College of Forestry, Sichuan Agricultural University, 611130, Chengdu, China
- Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China and Centre of Invasion Biology, Institute of Biodiversity, Yunnan University, 650504, Kunming, China
| | - Jiayao Tang
- Key Laboratory of National Forestry & Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Key Laboratory of Forest Protection of Sichuan Education Department, College of Forestry, Sichuan Agricultural University, 611130, Chengdu, China
| | - Shuying Li
- Key Laboratory of National Forestry & Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Key Laboratory of Forest Protection of Sichuan Education Department, College of Forestry, Sichuan Agricultural University, 611130, Chengdu, China
| | - Shujiang Li
- Key Laboratory of National Forestry & Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Key Laboratory of Forest Protection of Sichuan Education Department, College of Forestry, Sichuan Agricultural University, 611130, Chengdu, China
| | - Shan Han
- Key Laboratory of National Forestry & Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Key Laboratory of Forest Protection of Sichuan Education Department, College of Forestry, Sichuan Agricultural University, 611130, Chengdu, China
| | - Yinggao Liu
- Key Laboratory of National Forestry & Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Key Laboratory of Forest Protection of Sichuan Education Department, College of Forestry, Sichuan Agricultural University, 611130, Chengdu, China
| | - Chunlin Yang
- Key Laboratory of National Forestry & Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Key Laboratory of Forest Protection of Sichuan Education Department, College of Forestry, Sichuan Agricultural University, 611130, Chengdu, China
| | - Gang Chen
- Key Laboratory of National Forestry & Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Key Laboratory of Forest Protection of Sichuan Education Department, College of Forestry, Sichuan Agricultural University, 611130, Chengdu, China
| | - Lianghua Chen
- Key Laboratory of National Forestry & Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Key Laboratory of Forest Protection of Sichuan Education Department, College of Forestry, Sichuan Agricultural University, 611130, Chengdu, China
| | - Tianhui Zhu
- Key Laboratory of National Forestry & Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Key Laboratory of Forest Protection of Sichuan Education Department, College of Forestry, Sichuan Agricultural University, 611130, Chengdu, China
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Tang S, Lin X, Li W, Guo C, Han J, Yu L. Nutrient resorption responses of female and male Populus cathayana to drought and shade stress. PHYSIOLOGIA PLANTARUM 2023; 175:e13980. [PMID: 37616009 DOI: 10.1111/ppl.13980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/03/2023] [Accepted: 07/14/2023] [Indexed: 08/25/2023]
Abstract
Nutrient resorption can increase nutrient use and play important roles in terrestrial plant nutrient cycles. Although several studies have reported individual responses of plant nutrient resorption to drought or shade stress, the interaction of drought and shade remains unclear, especially for dioecious plants. This study explored whether nutrient resorption is correlated to growth characteristics (such as biomass and root/shoot ratio [R/S ratio]) and leaf economics (such as leaf thickness, leaf mass per area [LMA] and leaf vein density [LVD]) in female and male Populus cathayana across different conditions. We found that drought stress significantly increased nitrogen (N) resorption efficiency (NRE) in both sexes, but shade and interactive stress decreased NRE in P. cathayana females. Under drought stress, nutrient resorption was sexually dimorphic such that P. cathayana males have higher NRE than females. Furthermore, NRE and phosphorous (P) resorption efficiency (PRE) were positively related to R/S ratio, leaf thickness, LMA, and LVD in both sexes across different treatments. Our study is the first to present how nutrient resorption is related to biomass accumulation and allocation, and leaf economics, suggesting that nutrient uptake may be modulated by R/S ratio and leaf economics, which is important for understanding the conservation mechanism of plant nutrients.
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Affiliation(s)
- Shuanglei Tang
- Department of Ecology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Xiazhen Lin
- Teaching Center, Zhejiang Open University, Hangzhou, China
| | - Wen Li
- Department of Ecology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Chengjin Guo
- Department of Ecology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Jungang Han
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University, Wuhan, China
- Department of Central Laboratory, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Lei Yu
- Department of Ecology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
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Guo Q, Ye J, Zeng J, Chen L, Korpelainen H, Li C. Selenium species transforming along soil-plant continuum and their beneficial roles for horticultural crops. HORTICULTURE RESEARCH 2023; 10:uhac270. [PMID: 36789256 PMCID: PMC9923214 DOI: 10.1093/hr/uhac270] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 12/01/2022] [Indexed: 05/15/2023]
Abstract
Selenium (Se) acquirement from daily diet can help reduce the risk of many diseases. The edible parts of crop plants are the main source of dietary Se, while the Se content in crops is determined by Se bioavailability in soil. We summarize recent research on the biogeochemical cycle of Se driven by specific microorganisms and emphasize the oxidizing process in the Se cycle. Moreover, we discuss how plant root exudates and rhizosphere microorganisms affect soil Se availability. Finally, we cover beneficial microorganisms, including endophytes, that promote crop quality and improve crop tolerance to environmental stresses. Se availability to plants depends on the balance between adsorption and desorption, reduction, methylation and oxidation, which are determined by interactions among soil properties, microbial communities and plants. Reduction and methylation processes governed by bacteria or fungi lead to declined Se availability, while Se oxidation regulated by Se-oxidizing microorganisms increases Se availability to plants. Despite a much lower rate of Se oxidization compared to reduction and methylation, the potential roles of microbial communities in increasing Se bioavailability are probably largely underestimated. Enhancing Se oxidation and Se desorption are crucial for the promotion of Se bioavailability and uptake, particularly in Se-deficient soils. Beneficial roles of Se are reported in terms of improved crop growth and quality, and enhanced protection against fungal diseases and abiotic stress through improved photosynthetic traits, increased sugar and amino acid contents, and promoted defense systems. Understanding Se transformation along the plant-soil continuum is crucial for agricultural production and even for human health.
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Affiliation(s)
- Qingxue Guo
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Jianhui Ye
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Jianming Zeng
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Liang Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Helena Korpelainen
- Department of Agricultural Sciences, Viikki Plant Science Centre, University of Helsinki, P.O. Box 27, FI-00014, Finland
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Zhao Y, Li X, Li Y, Bao H, Nan J, Xu G. Rapid biodegradation of atrazine by a novel Paenarthrobacter ureafaciens ZY and its effects on soil native microbial community dynamic. Front Microbiol 2023; 13:1103168. [PMID: 36687626 PMCID: PMC9846760 DOI: 10.3389/fmicb.2022.1103168] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 12/09/2022] [Indexed: 01/06/2023] Open
Abstract
An atrazine-utilizing bacterium, designated as ZY, was isolated from agricultural soil and identified as Paenarthrobacter ureafaciens. The P. ureafaciens ZY demonstrated a significant degradation capacity of atrazine, with the degradation efficiency of 12.5 mg L-1 h-1 in liquid media (at pH 7, 30°C, and the atrazine level of 100 mg L-1). The P. ureafaciens ZY contained three atrazine-degrading genes (i.e., trzN, atzB, and atzC) could metabolize atrazine to form cyanuric acid, which showed lower biotoxicity than the parent atrazine as predicted by Ecological Structure Activity Relationships model. A laboratory-scale pot experiment was performed to examine the degradation of atrazine by P. ureafaciens ZY inoculation and investigate its effects on the native microbial communities. The results exhibited that the P. ureafaciens ZY was conductive to the degradation of atrazine, increased the total soil phospholipid fatty acids at the atrazine level of 50, 70, and 100 mg kg-1. By using high-throughput sequencing analysis, Frateuria, Dyella, Burkholderia-Caballeronia-Paraburkholderia were considered as the most important indigenous atrazine-degrading microorganisms due to their relative abundances were positively correlated with the atrazine degradation rate. In addition, P. ureafaciens ZY also increased the abundance of atrazine-degrading genus Streptomyces and Bacillus, indicating that there may be a synergic relationship between them in the process of atrazine degradation. Our work provides a new insight between inoculums and native microorganisms on the degradation of atrazine.
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Affiliation(s)
- Yue Zhao
- School of Environment, Harbin Institute of Technology, Harbin, China
| | - Xin Li
- School of Environment, Harbin Institute of Technology, Harbin, China,*Correspondence: Xin Li,
| | - Yunyang Li
- School of Environment, Harbin Institute of Technology, Harbin, China
| | - Huanyu Bao
- School of Environment, Harbin Institute of Technology, Harbin, China
| | - Jun Nan
- School of Environment, Harbin Institute of Technology, Harbin, China
| | - Guoren Xu
- School of Environment, Harbin Institute of Technology, Harbin, China,College of Resources and Environment, University of Chinese Academy of Sciences (UCAS), Beijing, China
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