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Marzorati F, Rossi R, Bernardo L, Mauri P, Silvestre DD, Lauber E, Noël LD, Murgia I, Morandini P. Arabidopsis thaliana Early Foliar Proteome Response to Root Exposure to the Rhizobacterium Pseudomonas simiae WCS417. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2023; 36:737-748. [PMID: 37470457 DOI: 10.1094/mpmi-05-23-0071-r] [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: 07/21/2023]
Abstract
Pseudomonas simiae WCS417 is a plant growth-promoting rhizobacterium that improves plant health and development. In this study, we investigate the early leaf responses of Arabidopsis thaliana to WCS417 exposure and the possible involvement of formate dehydrogenase (FDH) in such responses. In vitro-grown A. thaliana seedlings expressing an FDH::GUS reporter show a significant increase in FDH promoter activity in their roots and shoots after 7 days of indirect exposure (without contact) to WCS417. After root exposure to WCS417, the leaves of FDH::GUS plants grown in the soil also show an increased FDH promoter activity in hydathodes. To elucidate early foliar responses to WCS417 as well as FDH involvement, the roots of A. thaliana wild-type Col and atfdh1-5 knock-out mutant plants grown in soil were exposed to WCS417, and proteins from rosette leaves were subjected to proteomic analysis. The results reveal that chloroplasts, in particular several components of the photosystems PSI and PSII, as well as members of the glutathione S-transferase family, are among the early targets of the metabolic changes induced by WCS417. Taken together, the alterations in the foliar proteome, as observed in the atfdh1-5 mutant, especially after exposure to WCS417 and involving stress-responsive genes, suggest that FDH is a node in the early events triggered by the interactions between A. thaliana and the rhizobacterium WCS417. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Francesca Marzorati
- Department of Environmental Science and Policy, University of Milan, Milan, Italy
| | - Rossana Rossi
- Proteomic and Metabolomic Laboratory, Institute for Biomedical Technologies-National Research Council (ITB-CNR), Segrate, Italy
| | - Letizia Bernardo
- Proteomic and Metabolomic Laboratory, Institute for Biomedical Technologies-National Research Council (ITB-CNR), Segrate, Italy
| | - Pierluigi Mauri
- Proteomic and Metabolomic Laboratory, Institute for Biomedical Technologies-National Research Council (ITB-CNR), Segrate, Italy
| | - Dario Di Silvestre
- Proteomic and Metabolomic Laboratory, Institute for Biomedical Technologies-National Research Council (ITB-CNR), Segrate, Italy
| | - Emmanuelle Lauber
- Laboratoire des interactions plantes-microbes-environnement CNRS-INRAE, University of Toulouse, Castanet-Tolosan, France
| | - Laurent D Noël
- Laboratoire des interactions plantes-microbes-environnement CNRS-INRAE, University of Toulouse, Castanet-Tolosan, France
| | - Irene Murgia
- Department of Environmental Science and Policy, University of Milan, Milan, Italy
| | - Piero Morandini
- Department of Environmental Science and Policy, University of Milan, Milan, Italy
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Mehmood N, Saeed M, Zafarullah S, Hyder S, Rizvi ZF, Gondal AS, Jamil N, Iqbal R, Ali B, Ercisli S, Kupe M. Multifaceted Impacts of Plant-Beneficial Pseudomonas spp. in Managing Various Plant Diseases and Crop Yield Improvement. ACS OMEGA 2023; 8:22296-22315. [PMID: 37396244 PMCID: PMC10308577 DOI: 10.1021/acsomega.3c00870] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/18/2023] [Indexed: 07/04/2023]
Abstract
The modern agricultural system has issues with the reduction of agricultural productivity due to a wide range of abiotic and biotic stresses. It is also expected that in the future the entire world population may rapidly increase and will surely demand more food. Farmers now utilize a massive quantity of synthetic fertilizers and pesticides for disease management and to increase food production. These synthetic fertilizers badly affect the environment, the texture of the soil, plant productivity, and human health. However, agricultural safety and sustainability depend on an ecofriendly and inexpensive biological application. In contrast to synthetic fertilizers, soil inoculation with plant-growth-promoting rhizobacteria (PGPR) is one of the excellent alternative options. In this regard, we focused on the best PGPR genera, Pseudomonas, which exists in the rhizosphere as well as inside the plant's body and plays a role in sustainable agriculture. Many Pseudomonas spp. control plant pathogens and play an effective role in disease management through direct and indirect mechanisms. Pseudomonas spp. fix the amount of atmospheric nitrogen, solubilize phosphorus and potassium, and also produce phytohormones, lytic enzymes, volatile organic compounds, antibiotics, and secondary metabolites during stress conditions. These compounds stimulate plant growth by inducing systemic resistance and by inhibiting the growth of pathogens. Furthermore, pseudomonads also protect plants during different stress conditions like heavy metal pollution, osmosis, temperature, oxidative stress, etc. Now, several Pseudomonas-based commercial biological control products have been promoted and marketed, but there are a few limitations that hinder the development of this technology for extensive usage in agricultural systems. The variability among the members of Pseudomonas spp. draws attention to the huge research interest in this genus. There is a need to explore the potential of native Pseudomonas spp. as biocontrol agents and to use them in biopesticide development to support sustainable agriculture.
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Affiliation(s)
- Najaf Mehmood
- Department
of Botany, Government College Women University
Sialkot, Sialkot 51310, Pakistan
| | - Mahnoor Saeed
- Department
of Botany, Government College Women University
Sialkot, Sialkot 51310, Pakistan
| | - Sana Zafarullah
- Department
of Botany, Government College Women University
Sialkot, Sialkot 51310, Pakistan
| | - Sajjad Hyder
- Department
of Botany, Government College Women University
Sialkot, Sialkot 51310, Pakistan
| | - Zarrin Fatima Rizvi
- Department
of Botany, Government College Women University
Sialkot, Sialkot 51310, Pakistan
| | - Amjad Shahzad Gondal
- Department
of Plant Pathology, Bahauddin Zakariya University, Multan 60000, Pakistan
| | - Nuzhat Jamil
- Department
of Botany, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
| | - Rashid Iqbal
- Department
of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur Pakistan, Bahawalpur 63100, Pakistan
| | - Baber Ali
- Department
of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Sezai Ercisli
- Department
of Horticulture, Faculty of Agriculture, Ataturk University, Erzurum 25240, Türkiye
- HGF
Agro, Ata Teknokent, Erzurum TR-25240, Türkiye
| | - Muhammed Kupe
- Department
of Horticulture, Faculty of Agriculture, Ataturk University, Erzurum 25240, Türkiye
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Kashyap AS, Manzar N, Meshram S, Sharma PK. Screening microbial inoculants and their interventions for cross-kingdom management of wilt disease of solanaceous crops- a step toward sustainable agriculture. Front Microbiol 2023; 14:1174532. [PMID: 37389335 PMCID: PMC10303155 DOI: 10.3389/fmicb.2023.1174532] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/18/2023] [Indexed: 07/01/2023] Open
Abstract
Microbial inoculants may be called magical bullets because they are small in size but have a huge impact on plant life and humans. The screening of these beneficial microbes will give us an evergreen technology to manage harmful diseases of cross-kingdom crops. The production of these crops is reducing as a result of multiple biotic factors and among them the bacterial wilt disease triggered by Ralstonia solanacearum is the most important in solanaceous crops. The examination of the diversity of bioinoculants has shown that more microbial species have biocontrol activity against soil-borne pathogens. Reduced crop output, lower yields, and greater cost of cultivation are among the major issues caused by diseases in agriculture around the world. It is universally true that soil-borne disease epidemics pose a greater threat to crops. These necessitate the use of eco-friendly microbial bioinoculants. This review article provides an overview of plant growth-promoting microorganisms bioinoculants, their various characteristics, biochemical and molecular screening insights, and modes of action and interaction. The discussion is concluded with a brief overview of potential future possibilities for the sustainable development of agriculture. This review will be useful for students and researchers to obtain existing knowledge of microbial inoculants, their activities, and their mechanisms, which will facilitate the development of environmentally friendly management strategies for cross-kingdom plant diseases.
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Affiliation(s)
- Abhijeet Shankar Kashyap
- Molecular Biology Lab, ICAR-National Bureau of Agriculturally Important Microorganisms, Maunath Bhanjan, India
| | - Nazia Manzar
- Plant Pathology Lab, ICAR-National Bureau of Agriculturally Important Microorganisms, Maunath Bhanjan, India
| | - Shweta Meshram
- Department of Plant Pathology, Lovely Professional University, Phagwara, Punjab, India
| | - Pawan Kumar Sharma
- Plant Pathology Lab, ICAR-National Bureau of Agriculturally Important Microorganisms, Maunath Bhanjan, India
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Morales-Manzo II, Ribes-Moya AM, Pallotti C, Jimenez-Belenguer A, Moro CP, Raigón MD, Rodríguez-Burruezo A, Fita A. Root-Soil Interactions for Pepper Accessions Grown under Organic and Conventional Farming. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091873. [PMID: 37176931 PMCID: PMC10180822 DOI: 10.3390/plants12091873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/12/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023]
Abstract
Modern agriculture has boosted the production of food based on the use of pesticides and fertilizers and improved plant varieties. However, the impact of some such technologies is high and not sustainable in the long term. Although the importance of rhizospheres in final plant performance, nutrient cycling, and ecosystems is well recognized, there is still a lack of information on the interactions of their main players. In this paper, four accessions of pepper are studied at the rhizosphere and root level under two farming systems: organic and conventional. Variations in soil traits, such as induced respiration, enzymatic activities, microbial counts, and metabolism of nitrogen at the rhizosphere and bulk soil, as well as measures of root morphology and plant production, are presented. The results showed differences for the evaluated traits between organic and conventional management, both at the rhizosphere and bulk soil levels. Organic farming showed higher microbial counts, enzymatic activities, and nitrogen mobilization. Our results also showed how some genotypes, such as Serrano or Piquillo, modified the properties of the rhizospheres in a very genotype-dependent way. This specificity of the soil-plant interaction should be considered for future breeding programs for soil-tailored agriculture.
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Affiliation(s)
- Ivan I Morales-Manzo
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Edificio 8E Escalera J, CPI, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Ana M Ribes-Moya
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Edificio 8E Escalera J, CPI, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Claudia Pallotti
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Edificio 8E Escalera J, CPI, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Ana Jimenez-Belenguer
- Centro Avanzado de Microbiología Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Clara Pérez Moro
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Edificio 8E Escalera J, CPI, Universitat Politècnica de València, 46022 Valencia, Spain
| | - María Dolores Raigón
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Edificio 8E Escalera J, CPI, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Adrián Rodríguez-Burruezo
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Edificio 8E Escalera J, CPI, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Ana Fita
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Edificio 8E Escalera J, CPI, Universitat Politècnica de València, 46022 Valencia, Spain
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Wei L, Wang D, Gupta R, Kim ST, Wang Y. A Proteomics Insight into Advancements in the Rice-Microbe Interaction. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12051079. [PMID: 36903938 PMCID: PMC10005616 DOI: 10.3390/plants12051079] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 05/23/2023]
Abstract
Rice is one of the most-consumed foods worldwide. However, the productivity and quality of rice grains are severely constrained by pathogenic microbes. Over the last few decades, proteomics tools have been applied to investigate the protein level changes during rice-microbe interactions, leading to the identification of several proteins involved in disease resistance. Plants have developed a multi-layered immune system to suppress the invasion and infection of pathogens. Therefore, targeting the proteins and pathways associated with the host's innate immune response is an efficient strategy for developing stress-resistant crops. In this review, we discuss the progress made thus far with respect to rice-microbe interactions from side views of the proteome. Genetic evidence associated with pathogen-resistance-related proteins is also presented, and challenges and future perspectives are highlighted in order to understand the complexity of rice-microbe interactions and to develop disease-resistant crops in the future.
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Affiliation(s)
- Lirong Wei
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education, Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Dacheng Wang
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education, Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Ravi Gupta
- College of General Education, Kookmin University, Seoul 02707, Republic of Korea
| | - Sun Tae Kim
- Department of Plant Bioscience, Pusan National University, Miryang 50463, Republic of Korea
| | - Yiming Wang
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education, Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
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Rajer FU, Samma MK, Ali Q, Rajar WA, Wu H, Raza W, Xie Y, Tahir HAS, Gao X. Bacillus spp.-Mediated Growth Promotion of Rice Seedlings and Suppression of Bacterial Blight Disease under Greenhouse Conditions. Pathogens 2022; 11:1251. [PMID: 36365003 PMCID: PMC9694674 DOI: 10.3390/pathogens11111251] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/16/2022] [Accepted: 10/26/2022] [Indexed: 07/30/2023] Open
Abstract
Rice (Oryza sativa L.) is a major cereal and staple food crop worldwide, and its growth and production are affected by several fungal and bacterial phytopathogens. Bacterial blight (BB) is one of the world's most devastating rice diseases, caused by Xanthomonas oryzae pv. oryzae (Xoo). In the current study, Bacillus atrophaeus FA12 and B. cabrialesii FA26 were isolated from the rice rhizosphere and characterized as having broad-range antifungal and antibacterial activities against various phytopathogens, including Xoo. In addition, the selected strains were further evaluated for their potent rice growth promotion and suppression efficacy against BB under greenhouse conditions. The result shows that FA12 and FA26, applied as seed inoculants, significantly enhanced the vigor index of rice seedlings by 78.89% and 108.70%, respectively. Suppression efficacy against BB disease by FA12 and FA26 reached up to 59.74% and 54.70%, respectively, in pot experiments. Furthermore, MALDI-TOF MS analysis of selected strains revealed the masses ranged from m/z 1040 to 1540, representing that iturins and fengycin are the major antimicrobial compounds in the crude extracts, which might have beneficial roles in rice defence responses against BB. In conclusion, FA12 and FA26 possess broad-range antagonistic activity and have the capability to promote plant growth traits. More importantly, applying these strains has a high potential for implementing eco-friendly, cost-effective, and sustainable management practices for BB disease.
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Affiliation(s)
- Faheem Uddin Rajer
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Department of Plant Pathology, Faculty of Crop Protection, Sindh Agriculture University, Tandojam 70060, Pakistan
| | - Muhammad Kaleem Samma
- Department of Biosciences, Shaheed Zulfiqar Ali Bhutto Institute of Science and Technology, Karachi 75600, Pakistan
| | - Qurban Ali
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Waleed Ahmed Rajar
- Institute of Microbiology, University of Sindh, Jamshoro 76080, Pakistan
| | - Huijun Wu
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Waseem Raza
- Jiangsu Key Lab for Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Yongli Xie
- State Key Laboratory of Plateau Ecology and Agriculture, Department of Grassland Science, College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Hafiz Abdul Samad Tahir
- Tobacco Research Institute, Pakistan Tobacco Board, Ministry of National Food Security and Research, Peshawar 25124, Pakistan
| | - Xuewen Gao
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
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Verma PK, Verma S, Pandey N. Root system architecture in rice: impacts of genes, phytohormones and root microbiota. 3 Biotech 2022; 12:239. [PMID: 36016841 PMCID: PMC9395555 DOI: 10.1007/s13205-022-03299-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/01/2022] [Indexed: 11/28/2022] Open
Abstract
To feed the continuously expanding world's population, new crop varieties have been generated, which significantly contribute to the world's food security. However, the growth of these improved plant varieties relies primarily on synthetic fertilizers, which negatively affect the environment and human health; therefore, continuous improvement is needed for sustainable agriculture. Several plants, including cereal crops, have the adaptive capability to combat adverse environmental changes by altering physiological and molecular mechanisms and modifying their root system to improve nutrient uptake efficiency. These plants operate distinct pathways at various developmental stages to optimally establish their root system. These processes include changes in the expression profile of genes, changes in phytohormone level, and microbiome-induced root system architecture (RSA) modification. Several studies have been performed to understand microbial colonization and their involvement in RSA improvement through changes in phytohormone and transcriptomic levels. This review highlights the impact of genes, phytohormones, and particularly root microbiota in influencing RSA and provides new insights resulting from recent studies on rice root as a model system and summarizes the current knowledge about biochemical and central molecular mechanisms.
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Affiliation(s)
- Pankaj Kumar Verma
- Department of Botany, University of Lucknow, Lucknow, India
- Present Address: French Associates Institute for Agriculture and Biotechnology of Drylands, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Shikha Verma
- Present Address: French Associates Institute for Agriculture and Biotechnology of Drylands, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Nalini Pandey
- Department of Botany, University of Lucknow, Lucknow, India
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8
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Kour D, Yadav AN. Bacterial Mitigation of Drought Stress in Plants: Current Perspectives and Future Challenges. Curr Microbiol 2022; 79:248. [PMID: 35834053 DOI: 10.1007/s00284-022-02939-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 06/17/2022] [Indexed: 11/28/2022]
Abstract
Climate change is emerging as a crucial issue with global attention and leading to abiotic stress conditions. There are different abiotic stress which affects the crop production among which drought is known to be most destructive stress affecting crop productivity and world's food security. Different approaches are under consideration to increase adaptability of the plants under drought stress with plant-microbe interactions being a greater area of focus. Stress-adaptive microbes either from the rhizosphere, internal tissue, or aerial parts of plants have been reported which through different mechanisms help the plants to cope up with drought and also promote their growth. These mechanisms include the accumulation of osmolytes, decrease in the inhibitory levels of ethylene by aminocyclopropane-1-carboxylate (ACC) deaminase enzyme, and furnishing the unavailable nutrients to plants. Microbial genera including Azotobacter, Bacillus, Ochrobactrum, Pseudomonas, and Serratia are known to be self-adaptive and growth promoters under drought stressed conditions. Stress-adaptive plant growth promoting (PGP) microbes thus are excellent candidates for stress alleviation in drought environment to provide maximum benefits to the plants. The present review deals with the effect of the drought stress on plants, biodiversity of the drought-adaptive microbes, mechanisms of the drought stress alleviation through enhancement of stress alleviators, reduction of the stress aggravators, and modification of the molecular pathways as well as the multiple PGP attributes of the drought-adaptive microbes.
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Affiliation(s)
- Divjot Kour
- Department of Microbiology, Akal College of Basic Sciences, Eternal University, Baru Sahib, Sirmour, 173101, India
| | - Ajar Nath Yadav
- Department of Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, Sirmour, 173101, India.
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Fan D, Smith DL. Mucilaginibacter sp. K Improves Growth and Induces Salt Tolerance in Nonhost Plants via Multilevel Mechanisms. FRONTIERS IN PLANT SCIENCE 2022; 13:938697. [PMID: 35832221 PMCID: PMC9271937 DOI: 10.3389/fpls.2022.938697] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
Soil salinity negatively modulates plant growth and development, contributing to severe decreases in the growth and production of crops. Mucilaginibacter sp. K is a root endophytic bacterium that was previously reported by our laboratory to stimulate growth and confer salt tolerance in Arabidopsis (Arabidopsis thaliana). The main purpose of the present study is to elucidate the physiological and molecular machinery responsible for the prospective salt tolerance as imparted by Mucilaginibacter sp. K. We first report that auxin, gibberellin, and MPK6 signalings were required for strain K-induced growth promotion and salt tolerance in Arabidopsis. Then, this strain was assessed as a remediation strategy to improve maize performance under salinity stress. Under normal growth conditions, the seed vigor index, nitrogen content, and plant growth were significantly improved in maize. After NaCl exposure, strain K significantly promoted the growth of maize seedlings, ameliorated decline in chlorophyll content and reduced accretion of MDA and ROS compared with the control. The possible mechanisms involved in salt resistance in maize could be the improved activities of SOD and POD (antioxidative system) and SPS (sucrose biosynthesis), upregulated content of total soluble sugar and ABA, and reduced Na+ accumulation. These physiological changes were then confirmed by induced gene expression for ion transportation, photosynthesis, ABA biosynthesis, and carbon metabolism. In summary, these results suggest that strain K promotes plant growth through increases in photosynthesis and auxin- and MPK6-dependent pathways; it also bestows salt resistance on plants through protection against oxidative toxicity, Na+ imbalance, and osmotic stress, along with the activation of auxin-, gibberellin-, and MPK6-dependent signaling pathways. This is the first detailed report of maize growth promotion by a Mucilaginibacter sp. strain from wild plant. This strain could be used as a favorable biofertilizer and a salinity stress alleviator for maize, with further ascertainment as to its reliability of performance under field conditions and in the presence of salt stress.
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Affiliation(s)
- Di Fan
- School of Biology, Food and Environment, Hefei University, Hefei, China
- Department of Plant Science, McGill University, Montreal, QC, Canada
| | - Donald L. Smith
- Department of Plant Science, McGill University, Montreal, QC, Canada
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Mekureyaw MF, Pandey C, Hennessy RC, Nicolaisen MH, Liu F, Nybroe O, Roitsch T. The cytokinin-producing plant beneficial bacterium Pseudomonas fluorescens G20-18 primes tomato (Solanum lycopersicum) for enhanced drought stress responses. JOURNAL OF PLANT PHYSIOLOGY 2022; 270:153629. [PMID: 35151004 DOI: 10.1016/j.jplph.2022.153629] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 12/24/2021] [Accepted: 01/19/2022] [Indexed: 05/27/2023]
Abstract
Plant growth-promoting rhizobacteria (PGPR) are known for exerting beneficial effects on plant growth and tolerance to plant pathogens. However, their specific role in mediating protection against abiotic stress remains underexplored. The aim of this study was to characterise the ability of the cytokinin-producing beneficial bacterium Pseudomonas fluorescens G20-18 to enhance tomato growth and boost tolerance to drought stress. Tomato seedlings were root inoculated and their growth and physiological and molecular responses assessed under well-watered conditions and also in response to progressive drought stress and a subsequent recovery period. Root inoculation with G20-18 had a significant positive impact on tomato growth. Furthermore, G20-18 inoculated and drought-stressed plants showed higher leaf chlorophyll and abscisic acid (ABA) content and stomatal closure than non-inoculated controls. Root inoculation also increased the activity of different carbohydrate metabolism enzymes, which are important for root and leaf growth and development in drought stressed plants. A significant increase in the activity of different antioxidant enzymes and total antioxidant capacity correlated with elevated levels of relevant secondary metabolites, such as phenolics, anthocyanins and flavonoids. RNA sequencing revealed distinct qualitative and quantitative differences in gene regulation in response to G20-18. Notably, the number of genes differentially regulated in response to G20-18 was approximately sevenfold higher during drought stress, indicating that root inoculation with the bacteria primed the plants for a much stronger transcriptionally regulated systemic drought stress response. The regulated genes are related to phenylalanine metabolism and other key processes linked to plant growth, development and drought stress resilience. A role of the ability of G20-18 to produce the plant hormone cytokinin for interaction with tomato was established by the cytokinin-deficient biosynthesis mutants CNT1 and CNT2. In comparison with G20-18, the inoculation of plants with CNT1 resulted in a reduced number of differentially regulated genes. The relative change was most prominent under well-watered conditions with a 85 % reduction, corresponding to 462 genes. However, under drought conditions the absolute number of differentially regulated genes was reduced by even 2219 in response to the CNT1 mutant. The relevance of the ability of G20-18 to produce cytokinins for interaction with plants was also evident from differences in growth and specific cell and ecophysiological parameters in response to CNT1 and CNT2. These findings provide novel insights about G20-18's ability to improve drought stress responses and the role of interkingdom signalling by bacterial-derived cytokinins, and contribute to enhance the robustness of the practical application of these microorganisms to improve crop resilience in agricultural production.
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Affiliation(s)
- Mengistu F Mekureyaw
- University of Copenhagen, Department of Plant and Environmental Sciences, Section of Crop Science, Denmark; University of Copenhagen, Department of Plant and Environmental Sciences, Section of Microbial Ecology and Biotechnology, Denmark
| | - Chandana Pandey
- University of Copenhagen, Department of Plant and Environmental Sciences, Section of Crop Science, Denmark
| | - Rosanna C Hennessy
- University of Copenhagen, Department of Plant and Environmental Sciences, Section of Microbial Ecology and Biotechnology, Denmark
| | - Mette H Nicolaisen
- University of Copenhagen, Department of Plant and Environmental Sciences, Section of Microbial Ecology and Biotechnology, Denmark
| | - Fulai Liu
- University of Copenhagen, Department of Plant and Environmental Sciences, Section of Crop Science, Denmark
| | - Ole Nybroe
- University of Copenhagen, Department of Plant and Environmental Sciences, Section of Microbial Ecology and Biotechnology, Denmark
| | - Thomas Roitsch
- University of Copenhagen, Department of Plant and Environmental Sciences, Section of Crop Science, Denmark; Department of Adaptive Biotechnologies, Global Change Research Institute, Czech Academy of Sciences, Brno, Czech Republic.
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Choi J, Roy Choudhury A, Walitang DI, Lee Y, Sa T. ACC deaminase-producing Brevibacterium linens RS16 enhances heat-stress tolerance of rice (Oryza sativa L.). PHYSIOLOGIA PLANTARUM 2022; 174:e13584. [PMID: 34625965 DOI: 10.1111/ppl.13584] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 09/23/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
The rapid rise in global temperature has adverse effects on rice productivity. The lack of eminent resources for heat stress alleviation is threatening the agricultural sector. Heat stress alleviation by endophytic plant growth-promoting bacteria (PGPB) can be a sustainable and eco-friendly approach. The present study was conducted to check the colonization of Brevibacterium linens RS16 producing ACC (1-aminocyclopropane-1-carboxylate) deaminase in the rice endosphere and to characterize its efficiency in enhancing stress tolerance. The ethylene emission pathway, reactive oxygen species (ROS) concentrations, proline accumulation, expression of glutathione S-transferase (GST), and small heat shock proteins (sHSPs) were monitored at two different levels of heat stress (40°C and 45°C). Bacterial inoculation decreased ethylene emission levels by 26.9% and 24.4% in rice plants exposed to 40°C and 45°C, respectively, compared with the non-inoculated plants. B. linens RS16 also enhanced the expression profiles of glutathione S-transferase. The collective effect of GST expression profiles and decrease in ethylene emission due to bacterial ACC deaminase activity subsequently resulted in a decrease in ROS concentrations. Additionally, HSP16 and HSP26 increased expression in heat-stressed plants inoculated with B. linens RS16 resulted in enhanced stress tolerance (i.e., lesser proline accumulation) than non-inoculated plants. Hence, this study demonstrates the bacteria-mediated tolerance against heat stress by regulating the ethylene emission pathway and upregulating antioxidant enzymes and heat shock proteins.
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Affiliation(s)
- Jeongyun Choi
- Department of Environmental and Biological Chemistry, Chungbuk National University, Cheongju, Republic of Korea
| | - Aritra Roy Choudhury
- Department of Environmental and Biological Chemistry, Chungbuk National University, Cheongju, Republic of Korea
- Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Denver I Walitang
- Department of Environmental and Biological Chemistry, Chungbuk National University, Cheongju, Republic of Korea
- College of Agriculture, Fisheries, and Forestry, Romblon State University, Romblon, Philippines
| | - Yi Lee
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju, Republic of Korea
| | - Tongmin Sa
- Department of Environmental and Biological Chemistry, Chungbuk National University, Cheongju, Republic of Korea
- The Korean Academy of Science and Technology, Seongnam, Republic of Korea
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Persaud R, Saravanakumar D, Persaud M, Seepersad G. Biologicals and New Generation Fungicides in the Management of Blast Disease in Rice. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2021. [DOI: 10.3389/fsufs.2021.797441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: Blast is a devastating disease in rice production. The current research tested the efficacy of biologicals and fungicides against blast. Aqueous extracts of Azadirachta indica, Ocimum basalicum, Cymbopogan flexousus, Thymus vulgaris, Aloe vera, Tagetes patula, Cordia curassavica, Aegle marmelos, Allium fistulosum, Syzygium aromaticum, and Calotropis gigantea were tested in vitro at 5, 10, and 15% concentrations against Magnaporthe oryzae. Also, two isolates, Bacillus cereus OG2L and B. subtilis OG2A, and one isolate, Azotobacter SAG19, and, similarly, five new generation fungicides were evaluated at three different doses against blast pathogen M. oryzae in vitro. The treatments that exhibited the best performance in vitro were further evaluated against blast disease under field conditions.Results: Extracts of T. patula (5%), C. gigantea (5%), C. curassavica (10%), A. fistulosum (10%), and A. marmelos (15%) showed greater than 81% inhibition to M. oryzae in vitro. Likewise, all three biocontrol agents, viz. B. cereus OG2L, B. subtilis OG2A, and Azotobacter SAG19, demonstrated more than 50% inhibition of mycelial growth of pathogen in vitro, and the commercial formulations of fungicides Propineb, Trifloxystrobin+Tebuconazole, Tebuconazol+Triadimenol, Bacillus subtilis Strain QST 713, and Cinnamon Oil 8%+Clove Oil 2% also significantly inhibited M. oryzae. Under field conditions, C. curassavica (10%), A. marmelos (15%), C. gigantea (5%); B.cereus OG2L; B.subtilis OG2A; Proineb and Trifloxystrobin+Tebuconazole were effective in reducing disease in addition to yield enhancement.Conclusion: Overall, the plant extracts (C. curassavica at 10%, A. marmelos at 15%, C. gigantea at 5%); bio-agents (B. cereus OG2L, B. subtilis OG2A both at 2g/l), and new generation fungicides Antracol 70WP (Proineb) at 2.5 g/l and Nativo 75 WG (Trifloxystrobin+Tebuconazole) at 0.5 g/l provided effective control against blast disease and superior plant growth and yield compared with other treatments and untreated control.
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Iqbal Z, Iqbal MS, Khan MIR, Ansari MI. Toward Integrated Multi-Omics Intervention: Rice Trait Improvement and Stress Management. FRONTIERS IN PLANT SCIENCE 2021; 12:741419. [PMID: 34721467 PMCID: PMC8554098 DOI: 10.3389/fpls.2021.741419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/20/2021] [Indexed: 05/04/2023]
Abstract
Rice (Oryza sativa) is an imperative staple crop for nearly half of the world's population. Challenging environmental conditions encompassing abiotic and biotic stresses negatively impact the quality and yield of rice. To assure food supply for the unprecedented ever-growing world population, the improvement of rice as a crop is of utmost importance. In this era, "omics" techniques have been comprehensively utilized to decipher the regulatory mechanisms and cellular intricacies in rice. Advancements in omics technologies have provided a strong platform for the reliable exploration of genetic resources involved in rice trait development. Omics disciplines like genomics, transcriptomics, proteomics, and metabolomics have significantly contributed toward the achievement of desired improvements in rice under optimal and stressful environments. The present review recapitulates the basic and applied multi-omics technologies in providing new orchestration toward the improvement of rice desirable traits. The article also provides a catalog of current scenario of omics applications in comprehending this imperative crop in relation to yield enhancement and various environmental stresses. Further, the appropriate databases in the field of data science to analyze big data, and retrieve relevant information vis-à-vis rice trait improvement and stress management are described.
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Affiliation(s)
- Zahra Iqbal
- Molecular Crop Research Unit, Department of Biochemistry, Chulalongkorn University, Bangkok, Thailand
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Ali S, Xie L. Plant Growth Promoting and Stress Mitigating Abilities of Soil Born Microorganisms. Recent Pat Food Nutr Agric 2021; 11:96-104. [PMID: 31113355 DOI: 10.2174/2212798410666190515115548] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/29/2018] [Accepted: 02/16/2019] [Indexed: 12/16/2022]
Abstract
Abiotic stresses affect the plant growth in different ways and at different developmental stages that reduce the crop yields. The increasing world population continually demands more crop yields; therefore it is important to use low-cost technologies against abiotic stresses to increase crop productivity. Soil microorganisms survive in the soil associated with plants in extreme condition. It was demonstrated that these beneficial microorganisms promote plant growth and development under various stresses. The soil microbes interact with the plant through rhizospheric or endophytic association and promote the plant growth through different processes such as nutrients mobilization, disease suppression, and hormone secretions. The microorganisms colonized in the rhizospheric region and imparted the abiotic stress tolerance by producing 1-aminocyclopropane-1- carboxylate (ACC) deaminase, antioxidant, and volatile compounds, inducing the accumulation of osmolytes, production of exopolysaccharide, upregulation or downregulation of stress genes, phytohormones and change the root morphology. A large number of these rhizosphere microorganisms are now patented. In the present review, an attempt was made to throw light on the mechanism of micro-organism that operates during abiotic stresses and promotes plant survival and productivity.
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Affiliation(s)
- Shahid Ali
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang 150040, China
| | - Linan Xie
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang 150040, China
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Ali S, Khan N. Delineation of mechanistic approaches employed by plant growth promoting microorganisms for improving drought stress tolerance in plants. Microbiol Res 2021; 249:126771. [PMID: 33930840 DOI: 10.1016/j.micres.2021.126771] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/01/2021] [Accepted: 04/17/2021] [Indexed: 11/24/2022]
Abstract
Drought stress is expected to increase in intensity, frequency, and duration in many parts of the world, with potential negative impacts on plant growth and productivity. The plants have evolved complex physiological and biochemical mechanisms to respond and adjust to water-deficient environments. The physiological and biochemical mechanisms associated with water-stress tolerance and water-use efficiency have been extensively studied. Besides these adaptive and mitigating strategies, the plant growth-promoting rhizobacteria (PGPR) play a significant role in alleviating plant drought stress. These beneficial microorganisms colonize the endo-rhizosphere/rhizosphere of plants and enhance drought tolerance. The common mechanism by which these microorganisms improve drought tolerance included the production of volatile compounds, phytohormones, siderophores, exopolysaccharides, 1-aminocyclopropane-1-carboxylate deaminase (ACC deaminase), accumulation of antioxidant, stress-induced metabolites such as osmotic solutes proline, alternation in leaf and root morphology and regulation of the stress-responsive genes. The PGPR is an easy and efficient alternative approach to genetic manipulation and crop enhancement practices because plant breeding and genetic modification are time-consuming and expensive processes for obtaining stress-tolerant varieties. In this review, we will elaborate on PGPR's mechanistic approaches in enhancing the plant stress tolerance to cope with the drought stress.
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Affiliation(s)
- Shahid Ali
- Plant Epigenetic and Development, Northeast Forestry University, Harbin, 150040, China
| | - Naeem Khan
- Department of Agronomy, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL, 32611, USA.
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Vo KTX, Rahman MM, Rahman MM, Trinh KTT, Kim ST, Jeon JS. Proteomics and Metabolomics Studies on the Biotic Stress Responses of Rice: an Update. RICE (NEW YORK, N.Y.) 2021; 14:30. [PMID: 33721115 PMCID: PMC7960847 DOI: 10.1186/s12284-021-00461-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 01/28/2021] [Indexed: 05/19/2023]
Abstract
Biotic stresses represent a serious threat to rice production to meet global food demand and thus pose a major challenge for scientists, who need to understand the intricate defense mechanisms. Proteomics and metabolomics studies have found global changes in proteins and metabolites during defense responses of rice exposed to biotic stressors, and also reported the production of specific secondary metabolites (SMs) in some cultivars that may vary depending on the type of biotic stress and the time at which the stress is imposed. The most common changes were seen in photosynthesis which is modified differently by rice plants to conserve energy, disrupt food supply for biotic stress agent, and initiate defense mechanisms or by biotic stressors to facilitate invasion and acquire nutrients, depending on their feeding style. Studies also provide evidence for the correlation between reactive oxygen species (ROS) and photorespiration and photosynthesis which can broaden our understanding on the balance of ROS production and scavenging in rice-pathogen interaction. Variation in the generation of phytohormones is also a key response exploited by rice and pathogens for their own benefit. Proteomics and metabolomics studies in resistant and susceptible rice cultivars upon pathogen attack have helped to identify the proteins and metabolites related to specific defense mechanisms, where choosing of an appropriate method to identify characterized or novel proteins and metabolites is essential, considering the outcomes of host-pathogen interactions. Despites the limitation in identifying the whole repertoire of responsive metabolites, some studies have shed light on functions of resistant-specific SMs. Lastly, we illustrate the potent metabolites responsible for resistance to different biotic stressors to provide valuable targets for further investigation and application.
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Affiliation(s)
- Kieu Thi Xuan Vo
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
| | - Md Mizanor Rahman
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
| | - Md Mustafizur Rahman
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
| | - Kieu Thi Thuy Trinh
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
| | - Sun Tae Kim
- Department of Plant Bioscience, Pusan National University, Miryang, 50463 South Korea
| | - Jong-Seong Jeon
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin, 17104 South Korea
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Rolón-Cárdenas GA, Arvizu-Gómez JL, Pacheco-Aguilar JR, Vázquez-Martínez J, Hernández-Morales A. Cadmium-tolerant endophytic Pseudomonas rhodesiae strains isolated from Typha latifolia modify the root architecture of Arabidopsis thaliana Col-0 in presence and absence of Cd. Braz J Microbiol 2021; 52:349-361. [PMID: 33236245 PMCID: PMC7966613 DOI: 10.1007/s42770-020-00408-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 11/19/2020] [Indexed: 10/22/2022] Open
Abstract
In this work, we isolated four Cd-tolerant endophytic bacteria from Typha latifolia roots that grow at a Cd-contaminated site. Bacterial isolates GRC065, GRC066, GRC093, and GRC140 were identified as Pseudomonas rhodesiae. These bacterial isolates tolerate cadmium and have abilities for phosphate solubilization, siderophore production, indole acetic acid (IAA) synthesis, and ACC deaminase activity, suggesting that they are plant growth-promoting rhizobacteria. Bacterial inoculation in Arabidopsis thaliana seedlings showed that P. rhodesiae strains increase total fresh weight and number of lateral roots concerning non-inoculated plants. These results indicated that P. rhodesiae strains promote A. thaliana seedlings growth by modifying the root system. On the other hand, in A. thaliana seedlings exposed to 2.5 mg/l of Cd, P. rhodesiae strains increased the number and density of lateral roots concerning non-inoculated plants, indicating that they modify the root architecture of A. thaliana seedlings exposed to cadmium. The results showed that P. rhodesiae strains promote the development of lateral roots in A. thaliana seedlings cultivated in both conditions, with and without cadmium. These results suggest that P. rhodesiae strains could exert a similar role inside the roots of T. latifolia that grow in the Cd-contaminated environment.
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Affiliation(s)
- Gisela Adelina Rolón-Cárdenas
- Posgrado en Ciencias Químicas, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, San Luis Potosí, Mexico
- Facultad de Estudios Profesionales Zona Huasteca, Universidad Autónoma de San Luis Potosí, Romualdo del Campo 501, Fraccionamiento Rafael Curiel, CP 79060, Ciudad Valles, San Luis Potosí, Mexico
| | - Jackeline Lizzeta Arvizu-Gómez
- Secretaría de Investigación y Posgrado, Centro Nayarita de Innovación y Transferencia de Tecnología (CENITT), Universidad Autónoma de Nayarit, Tepic, Nayarit, Mexico
| | | | - Juan Vázquez-Martínez
- Departamento de Ingeniería Bioquímica, Tecnológico Nacional de México (TecNM), Instituto Tecnológico Superior de Irapuato, Irapuato, Guanajuato, Mexico
| | - Alejandro Hernández-Morales
- Posgrado en Ciencias Químicas, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, San Luis Potosí, Mexico.
- Facultad de Estudios Profesionales Zona Huasteca, Universidad Autónoma de San Luis Potosí, Romualdo del Campo 501, Fraccionamiento Rafael Curiel, CP 79060, Ciudad Valles, San Luis Potosí, Mexico.
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18
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Alberton D, Valdameri G, Moure VR, Monteiro RA, Pedrosa FDO, Müller-Santos M, de Souza EM. What Did We Learn From Plant Growth-Promoting Rhizobacteria (PGPR)-Grass Associations Studies Through Proteomic and Metabolomic Approaches? FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2020. [DOI: 10.3389/fsufs.2020.607343] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Plant growth stimulation by microorganisms that interact in a mutually beneficial manner remains poorly understood. Understanding the nature of plant-bacteria interactions may open new routes for plant productivity enhancement, especially cereal crops consumed by humans. Proteomic and metabolomic analyses are particularly useful for elucidating these mechanisms. A complete depiction of these mechanisms will prompt researchers to develop more efficient plant-bacteria associations. The success of microorganisms as biofertilizers may replace the current massive use of chemical fertilizers, mitigating many environmental and economic issues. In this review, we discuss the recent advances and current state of the art in proteomics and metabolomics studies involving grass-bacteria associations. We also discuss essential subjects involved in the bacterial plant-growth promotion, such, nitrogen fixation, plant stress, defense responses, and siderophore production.
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Nakkeeran S, Suganyadevi M, Rajamanickam S. Understanding the molecular basis on the biological suppression of bacterial leaf blight of anthurium exerted by Bacillus subtilis (BIO3) through proteomic approach. 3 Biotech 2020; 10:468. [PMID: 33088664 DOI: 10.1007/s13205-020-02456-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/26/2020] [Indexed: 12/01/2022] Open
Abstract
We attempted to study the antibacterial activity of rhizospheric Bacillus spp., to curb the bacterial blight of anthurium caused by Xanthomonas axonopodis pv. dieffenbachiae (Xad). Twenty-eight bacterial isolates from rhizospheric regions were identified as different Bacillus spp. and Ochrobactrum sp. using 16S rRNA gene sequencing. B. subtilis BIO3 effectively inhibited the growth of Xad up to 1450.7 mm2, and extracted volatile organic metabolites from the isolate BIO3 inhibited the growth of Xad up to 1024 mm2. Tritrophic interaction of anthurium leaves bacterized with B. subtilis BIO3 and challenged with Xad resulted in the expression of 12 unique proteins compared to untreated control. Mascot Peptide Mass Fingerprint-based identification indicated that one was glutathione peroxidase, involved in defence mechanism, other six proteins were identified as leghemoglobin II, CTP synthase-like, predicted protein (Physcomitrella patens), centromere-associated protein E, grain size protein, and five proteins were hypothetical proteins. Foliar application with 1% liquid formulations (108 CFU/ml) of B. subtilis BIO3 significantly suppressed the bacterial leaf blight of anthurium up to 78% over untreated control and also increased the stem length and flower yield.
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Affiliation(s)
- S Nakkeeran
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore, 641 003 India
| | - M Suganyadevi
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore, 641 003 India
| | - S Rajamanickam
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore, 641 003 India
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Chen Y, Liu T, Li Q, Ma Y, Cheng J, Xu L. Screening for Candidate Genes Associated with Biocontrol Mechanisms of Bacillus pumilus DX01 Using Tn5 Transposon Mutagenesis and a 2-DE-Based Comparative Proteomic Analysis. Curr Microbiol 2020; 77:3397-3408. [PMID: 32915287 DOI: 10.1007/s00284-020-02191-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 08/28/2020] [Indexed: 12/27/2022]
Abstract
A total of 1467 mutants of the biocontrol bacterium Bacillus pumilus DX01 were obtained by Tn5 insertional mutagenesis and subjected to the determination of antagonistic capabilities. Compared with the wild-type strain DX01, the mutant M25 was identified to have the most significant reduction in antagonistic capability against the phytopathogen Bipolaris maydis and extracellular proteinase activity. The integration site of the exogenous T-DNA in the genome of mutant M25 was revealed in the coding region of malony CoA-ACP transacylase (MCAT) gene (mcat), which belongs to a polyketide synthase (PKS) gene cluster, DX01pks of B. pumilus DX01. Furthermore, the whole DX01pks gene cluster was cloned using Illumina Solexa sequencing technology, and it has a modular framework different from the other two gene clusters involved in polyketide synthesis in B. amyloliquefaciens FZB42 (pks1) and B. subtilis 168 (pksX). Finally, in order to gain more insights into the molecular mechanisms of biocontrol of B. pumilus DX01, the changes in the relative level of expression of total proteins between the original strain DX01 and the mutant M25 were detected by 2-DE-based proteomic analysis. A total of twenty differentially expressed proteins were identified upon the mcat gene transposition mutagenesis. Of these proteins, seven proteins were up-regulated in expression level and the other proteins were down-regulated. Taken together, the results in this study showed that Tn5 transposon mutagenesis of B. pumilus DX01 can lead to a significant change of antiphytopathogen ability, and the DX01pks gene cluster possibly play a potential role in the biocontrol processes of this bacterium.
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Affiliation(s)
- Yunpeng Chen
- Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Tong Liu
- Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Qiongjie Li
- Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yifei Ma
- Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jiejie Cheng
- Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Lurong Xu
- Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
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Sharma M, Sudheer S, Usmani Z, Rani R, Gupta P. Deciphering the Omics of Plant-Microbe Interaction: Perspectives and New Insights. Curr Genomics 2020; 21:343-362. [PMID: 33093798 PMCID: PMC7536805 DOI: 10.2174/1389202921999200515140420] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/29/2020] [Accepted: 04/17/2020] [Indexed: 12/19/2022] Open
Abstract
Introduction Plants do not grow in isolation, rather they are hosts to a variety of microbes in their natural environments. While, few thrive in the plants for their own benefit, others may have a direct impact on plants in a symbiotic manner. Unraveling plant-microbe interactions is a critical component in recognizing the positive and negative impacts of microbes on plants. Also, by affecting the environment around plants, microbes may indirectly influence plants. The progress in sequencing technologies in the genomics era and several omics tools has accelerated in biological science. Studying the complex nature of plant-microbe interactions can offer several strategies to increase the productivity of plants in an environmentally friendly manner by providing better insights. This review brings forward the recent works performed in building omics strategies that decipher the interactions between plant-microbiome. At the same time, it further explores other associated mutually beneficial aspects of plant-microbe interactions such as plant growth promotion, nitrogen fixation, stress suppressions in crops and bioremediation; as well as provides better insights on metabolic interactions between microbes and plants through omics approaches. It also aims to explore advances in the study of Arabidopsis as an important avenue to serve as a baseline tool to create models that help in scrutinizing various factors that contribute to the elaborate relationship between plants and microbes. Causal relationships between plants and microbes can be established through systematic gnotobiotic experimental studies to test hypotheses on biologically derived interactions. Conclusion This review will cover recent advances in the study of plant-microbe interactions keeping in view the advantages of these interactions in improving nutrient uptake and plant health.
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Affiliation(s)
- Minaxi Sharma
- 1Department of Food Technology, ACA, Eternal University, Baru Sahib (173001), Himachal Pradesh, India; 2Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, Estonia; 3Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn12612, Estonia; 4Applied Microbiology Laboratory, Department of Environmental Science and Engineering, Indian Institute of Technology (ISM), Dhanbad, India
| | - Surya Sudheer
- 1Department of Food Technology, ACA, Eternal University, Baru Sahib (173001), Himachal Pradesh, India; 2Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, Estonia; 3Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn12612, Estonia; 4Applied Microbiology Laboratory, Department of Environmental Science and Engineering, Indian Institute of Technology (ISM), Dhanbad, India
| | - Zeba Usmani
- 1Department of Food Technology, ACA, Eternal University, Baru Sahib (173001), Himachal Pradesh, India; 2Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, Estonia; 3Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn12612, Estonia; 4Applied Microbiology Laboratory, Department of Environmental Science and Engineering, Indian Institute of Technology (ISM), Dhanbad, India
| | - Rupa Rani
- 1Department of Food Technology, ACA, Eternal University, Baru Sahib (173001), Himachal Pradesh, India; 2Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, Estonia; 3Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn12612, Estonia; 4Applied Microbiology Laboratory, Department of Environmental Science and Engineering, Indian Institute of Technology (ISM), Dhanbad, India
| | - Pratishtha Gupta
- 1Department of Food Technology, ACA, Eternal University, Baru Sahib (173001), Himachal Pradesh, India; 2Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, Tartu, Estonia; 3Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn12612, Estonia; 4Applied Microbiology Laboratory, Department of Environmental Science and Engineering, Indian Institute of Technology (ISM), Dhanbad, India
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Zhu J, Zhu K, Li L, Li Z, Qin W, Park Y, He Y. Proteomics of the Honeydew from the Brown Planthopper and Green Rice Leafhopper Reveal They Are Rich in Proteins from Insects, Rice Plant and Bacteria. INSECTS 2020; 11:insects11090582. [PMID: 32882811 PMCID: PMC7564128 DOI: 10.3390/insects11090582] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/24/2020] [Accepted: 08/24/2020] [Indexed: 12/26/2022]
Abstract
Honeydew is a watery fluid excreted by plant sap-feeding insects. It is a waste product for the insect hosts. However, it plays important roles for other organisms, such as serving as a nutritional source for beneficial insects and bacteria, as well as elicitors and effectors modulating plant responses. In this study, shotgun LC-MS/MS analyses were used to identify the proteins in the honeydew from two important rice hemipteran pests, the brown planthopper (Nilaparvata lugens, BPH) and green rice leafhopper (Nephotettix cincticeps, GRH). A total of 277 and 210 proteins annotated to insect proteins were identified in the BPH and GRH honeydews, respectively. These included saliva proteins that may have similar functions as the saliva proteins, such as calcium-binding proteins and apolipophorin, involved in rice plant defenses. Additionally, a total of 52 and 32 Oryza proteins were identified in the BPH and GRH honeydews, respectively, some of which are involved in the plant immune system, such as Pathogen-Related Protein 10, ascorbate peroxidase, thioredoxin and glutaredoxin. Coincidently, 570 and 494 bacteria proteins were identified from the BPH and GRH honeydews, respectively, which included several well-known proteins involved in the plant immune system: elongation factor Tu, flagellin, GroEL and cold-shock proteins. The results of our study indicate that the insect honeydew is a complex fluid cocktail that contains abundant proteins from insects, plants and microbes, which may be involved in the multitrophic interactions of plants-insects-microbes.
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Affiliation(s)
- Jinghua Zhu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (J.Z.); (K.Z.); (L.L.); (Z.L.); (W.Q.)
| | - Kunmiao Zhu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (J.Z.); (K.Z.); (L.L.); (Z.L.); (W.Q.)
| | - Liang Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (J.Z.); (K.Z.); (L.L.); (Z.L.); (W.Q.)
| | - Zengxin Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (J.Z.); (K.Z.); (L.L.); (Z.L.); (W.Q.)
| | - Weiwei Qin
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (J.Z.); (K.Z.); (L.L.); (Z.L.); (W.Q.)
| | - Yoonseong Park
- Department of Entomology, Kansas State University, Manhattan, KS 66506, USA;
| | - Yueping He
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (J.Z.); (K.Z.); (L.L.); (Z.L.); (W.Q.)
- Correspondence: ; Tel.: +86-13554408979
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Rushabh S, Kajal C, Prittesh P, Amaresan N, Krishnamurthy R. Isolation, characterization, and optimization of indole acetic acid–producing Providencia species (7MM11) and their effect on tomato (Lycopersicon esculentum) seedlings. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101732] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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24
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Mishra SK, Khan MH, Misra S, Dixit VK, Gupta S, Tiwari S, Chandra Gupta S, Chauhan PS. Drought tolerant Ochrobactrum sp. inoculation performs multiple roles in maintaining the homeostasis in Zea mays L. subjected to deficit water stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 150:1-14. [PMID: 32097873 DOI: 10.1016/j.plaphy.2020.02.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/18/2020] [Accepted: 02/18/2020] [Indexed: 05/01/2023]
Abstract
Plant growth-promoting rhizobacteria (PGPR) improve plant health under various biotic and abiotic stresses. However, the underlying mechanisms of the protective effects of PGPR in deficit water stress (WS) remain less explored. This study aimed to characterize the role of Ochrobactrum sp. NBRISH6 inoculation on maize (Zea mays "Maharaja") under WS conditions using multiple approaches such as physiological, anatomical, metabolic, and molecular. The effect of NBRISH6 inoculation using maize as a host plant was characterized under greenhouse conditions in deficit water stress. Results from this study demonstrated that NBRISH6 significantly lowered the expression of genes involved in the abscisic acid cycle, deficit water stress-response, osmotic stress, and antioxidant enzyme activity (superoxide dismutase, catalase, ascorbate peroxidase, guaiacol peroxidase, and polyphenol oxidase). Phytohormones, i.e. indole acetic acid (IAA) and salicylic acid (SA) levels, intercellular CO2 concentration, metabolites such as simple sugars, amino acids, aliphatic hydrocarbons, and the number of shrunken pith cells modulated in maize roots inoculated with NBRISH6. The NBRISH6 inoculation also improved the plant vegetative properties (root length, 33.80%; shoot length, 20.68%; root dry weight, 39.21%; shoot dry weight, 61.95%), shoot nutrients, xylem cells, root hairs, vapor pressure deficit (75%), intrinsic water-use efficiency (41.67%), photosynthesis rate (83.33%), and total chlorophyll (16.15%) as compared to the respective stress controls. This study provides valuable insights into mechanistic functions of PGPR in WS amelioration and promoting plant physiological response.
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Affiliation(s)
- Shashank Kumar Mishra
- Microbial Technologies Division, Council of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Mohammad Haneef Khan
- Microbial Technologies Division, Council of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India
| | - Sankalp Misra
- Microbial Technologies Division, Council of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Vijay Kant Dixit
- Microbial Technologies Division, Council of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India
| | - Swati Gupta
- Microbial Technologies Division, Council of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shalini Tiwari
- Microbial Technologies Division, Council of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India
| | - Sateesh Chandra Gupta
- Microbial Technologies Division, Council of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Puneet Singh Chauhan
- Microbial Technologies Division, Council of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Rhizobacteriome: Promising Candidate for Conferring Drought Tolerance in Crops. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2020. [DOI: 10.22207/jpam.14.1.10] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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26
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Abd El-Daim IA, Bejai S, Meijer J. Bacillus velezensis 5113 Induced Metabolic and Molecular Reprogramming during Abiotic Stress Tolerance in Wheat. Sci Rep 2019; 9:16282. [PMID: 31704956 PMCID: PMC6841942 DOI: 10.1038/s41598-019-52567-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 10/18/2019] [Indexed: 12/21/2022] Open
Abstract
Abiotic stresses are main limiting factors for agricultural production around the world. Plant growth promoting rhizobacteria (PGPR) have been shown to improve abiotic stress tolerance in several plants. However, the molecular and physiological changes connected with PGPR priming of stress management are poorly understood. The present investigation aimed to explore major metabolic and molecular changes connected with the ability of Bacillus velezensis 5113 to mediate abiotic stress tolerance in wheat. Seedlings treated with Bacillus were exposed to heat, cold/freezing or drought stress. Bacillus improved wheat survival in all stress conditions. SPAD readings showed higher chlorophyll content in 5113-treated stressed seedlings. Metabolite profiling using NMR and ESI-MS provided evidences for metabolic reprograming in 5113-treated seedlings and showed that several common stress metabolites were significantly accumulated in stressed wheat. Two-dimensional gel electrophoresis of wheat leaves resolved more than 300 proteins of which several were differentially expressed between different treatments and that cold stress had a stronger impact on the protein pattern compared to heat and drought. Peptides maps or sequences were used for database searches which identified several homologs. The present study suggests that 5113 treatment provides systemic effects that involve metabolic and regulatory functions supporting both growth and stress management.
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Affiliation(s)
- Islam A Abd El-Daim
- Department of Plant Biology, Uppsala Biocenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, SE75007, Uppsala, Sweden. .,Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Centre, Giza, Egypt. .,Institute of Biology, Environmental and Rural Sciences (IBERS) Aberystwyth University, Aberystwyth, UK.
| | - Sarosh Bejai
- Department of Plant Biology, Uppsala Biocenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, SE75007, Uppsala, Sweden
| | - Johan Meijer
- Department of Plant Biology, Uppsala Biocenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, SE75007, Uppsala, Sweden.
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Agarwal P, Singh PC, Chaudhry V, Shirke PA, Chakrabarty D, Farooqui A, Nautiyal CS, Sane AP, Sane VA. PGPR-induced OsASR6 improves plant growth and yield by altering root auxin sensitivity and the xylem structure in transgenic Arabidopsis thaliana. JOURNAL OF PLANT PHYSIOLOGY 2019; 240:153010. [PMID: 31352021 DOI: 10.1016/j.jplph.2019.153010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 07/10/2019] [Accepted: 07/11/2019] [Indexed: 05/02/2023]
Abstract
Plant-growth-promoting rhizobacteria (PGPR) improve plant growth by altering the root architecture, although the mechanisms underlying this alteration have yet to be unravelled. Through microarray analysis of PGPR-treated rice roots, a large number of differentially regulated genes were identified. Ectopic expression of one of these genes, OsASR6 (ABA STRESS RIPENING6), had a remarkable effect on plant growth in Arabidopsis. Transgenic lines over-expressing OsASR6 had larger leaves, taller inflorescence bolts and greater numbers of siliques and seeds. The most prominent effect was observed in root growth, with the root biomass increasing four-fold compared with the shoot biomass increase of 1.7-fold. Transgenic OsASR6 over-expressing plants showed higher conductance, transpiration and photosynthesis rates, leading to an ˜30% higher seed yield compared with the control. Interestingly, OsASR6 expression led to alterations in the xylem structure, an increase in the xylem vessel size and altered lignification, which correlated with higher conductance. OsASR6 is activated by auxin and, in turn, increases auxin responses and root auxin sensitivity, as observed by the increased expression of auxin-responsive genes, such as SAUR32 and PINOID, and the key auxin transcription factor, ARF5. Collectively, these phenomena led to an increased root density. The effects of OsASR6 expression largely mimic the beneficial effects of PGPRs in rice, indicating that OsASR6 activation may be a key factor governing PGPR-mediated changes in rice. OsASR6 is a potential candidate for the manipulation of rice for improved productivity.
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Affiliation(s)
- Pallavi Agarwal
- Plant Gene Expression Lab, CSIR- National Botanical Research Institute, Lucknow, 226001, India; Integral University, Lucknow, India
| | - Poonam C Singh
- Microbiology Division, CSIR- National Botanical Research Institute, Lucknow, 226001, India
| | - Vasvi Chaudhry
- Microbiology Division, CSIR- National Botanical Research Institute, Lucknow, 226001, India
| | - Pramod A Shirke
- Plant Physiology, CSIR- National Botanical Research Institute, Lucknow, 226001, India
| | - Debasis Chakrabarty
- Genetics and Molecular Biology Division, CSIR- National Botanical Research Institute, Lucknow-226001, India
| | | | | | - Aniruddha P Sane
- Plant Gene Expression Lab, CSIR- National Botanical Research Institute, Lucknow, 226001, India
| | - Vidhu A Sane
- Plant Gene Expression Lab, CSIR- National Botanical Research Institute, Lucknow, 226001, India.
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28
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Bhise KK, Dandge PB. Mitigation of salinity stress in plants using plant growth promoting bacteria. Symbiosis 2019. [DOI: 10.1007/s13199-019-00638-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Gullner G, Komives T, Király L, Schröder P. Glutathione S-Transferase Enzymes in Plant-Pathogen Interactions. FRONTIERS IN PLANT SCIENCE 2018; 9:1836. [PMID: 30622544 PMCID: PMC6308375 DOI: 10.3389/fpls.2018.01836] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 11/27/2018] [Indexed: 05/18/2023]
Abstract
Plant glutathione S-transferases (GSTs) are ubiquitous and multifunctional enzymes encoded by large gene families. A characteristic feature of GST genes is their high inducibility by a wide range of stress conditions including biotic stress. Early studies on the role of GSTs in plant biotic stress showed that certain GST genes are specifically up-regulated by microbial infections. Later numerous transcriptome-wide investigations proved that distinct groups of GSTs are markedly induced in the early phase of bacterial, fungal and viral infections. Proteomic investigations also confirmed the accumulation of multiple GST proteins in infected plants. Furthermore, functional studies revealed that overexpression or silencing of specific GSTs can markedly modify disease symptoms and also pathogen multiplication rates. However, very limited information is available about the exact metabolic functions of disease-induced GST isoenzymes and about their endogenous substrates. The already recognized roles of GSTs are the detoxification of toxic substances by their conjugation with glutathione, the attenuation of oxidative stress and the participation in hormone transport. Some GSTs display glutathione peroxidase activity and these GSTs can detoxify toxic lipid hydroperoxides that accumulate during infections. GSTs can also possess ligandin functions and participate in the intracellular transport of auxins. Notably, the expression of multiple GSTs is massively activated by salicylic acid and some GST enzymes were demonstrated to be receptor proteins of salicylic acid. Furthermore, induction of GST genes or elevated GST activities have often been observed in plants treated with beneficial microbes (bacteria and fungi) that induce a systemic resistance response (ISR) to subsequent pathogen infections. Further research is needed to reveal the exact metabolic functions of GST isoenzymes in infected plants and to understand their contribution to disease resistance.
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Affiliation(s)
- Gábor Gullner
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Tamas Komives
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Lóránt Király
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Peter Schröder
- Research Unit for Comparative Microbiome Analyses, Department of Environmental Sciences, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
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SkZ A, Vardharajula S, Vurukonda SSKP. Transcriptomic profiling of maize (Zea mays L.) seedlings in response to Pseudomonas putida stain FBKV2 inoculation under drought stress. ANN MICROBIOL 2018. [DOI: 10.1007/s13213-018-1341-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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31
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Abd El-Daim IA, Bejai S, Fridborg I, Meijer J. Identifying potential molecular factors involved in Bacillus amyloliquefaciens 5113 mediated abiotic stress tolerance in wheat. PLANT BIOLOGY (STUTTGART, GERMANY) 2018; 20:271-279. [PMID: 29247572 DOI: 10.1111/plb.12680] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 12/09/2017] [Indexed: 05/28/2023]
Abstract
Abiotic stressors are main limiting factors for agricultural production around the world. Plant growth-promoting bacteria have been successfully used to improve abiotic stress tolerance in several crops including wheat. However, the molecular changes involved in the improvement of stress management are poorly understood. The present investigation addressed some molecular factors involved in bacterially induced plant abiotic stress responses by identifying differentially expressed genes in wheat (Triticum aestivum) seedlings treated with the beneficial bacterium Bacillus amyloliquefaciens subsp. plantarum UCMB5113 prior to challenge with abiotic stress conditions such as heat, cold or drought. cDNA-AFLP analysis revealed differential expression of more than 200 transcript-derived fragments (TDFs) in wheat leaves. Expression of selected TDFs was confirmed using RT-PCR. DNA sequencing of 31 differentially expressed TDFs revealed significant homology with both known and unknown genes in database searches. Virus-induced gene silencing of two abscisic acid-related TDFs showed different effects upon heat and drought stress. We conclude that treatment with B. amyloliquefaciens 5113 caused molecular modifications in wheat in order to induce tolerance against heat, cold and drought stress. Bacillus treatment provides systemic effects that involve metabolic and regulatory functions supporting both growth and stress management.
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Affiliation(s)
- I A Abd El-Daim
- Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Centre for Plant Biology, Uppsala, Sweden
- Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Centre, Giza, Egypt
| | - S Bejai
- Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Centre for Plant Biology, Uppsala, Sweden
| | - I Fridborg
- Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Centre for Plant Biology, Uppsala, Sweden
| | - J Meijer
- Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Centre for Plant Biology, Uppsala, Sweden
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32
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Sapre S, Gontia-Mishra I, Tiwari S. Klebsiella sp. confers enhanced tolerance to salinity and plant growth promotion in oat seedlings (Avena sativa). Microbiol Res 2018; 206:25-32. [DOI: 10.1016/j.micres.2017.09.009] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 09/12/2017] [Accepted: 09/22/2017] [Indexed: 12/31/2022]
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Singh RP, Runthala A, Khan S, Jha PN. Quantitative proteomics analysis reveals the tolerance of wheat to salt stress in response to Enterobacter cloacae SBP-8. PLoS One 2017; 12:e0183513. [PMID: 28877183 PMCID: PMC5587313 DOI: 10.1371/journal.pone.0183513] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 08/04/2017] [Indexed: 11/18/2022] Open
Abstract
Salinity stress adversely affects the plant growth and is a major constraint to agriculture. In the present study, we studied the role of plant growth promoting rhizobacterium (PGPR) Enterobacter cloacae SBP-8 possessing ACC deaminase activity on proteome profile of wheat (Triticum aestivum L.) under high salinity (200 mM NaCl) stress. The aim of study was to investigate the differential expressed protein in selected three (T-1, T-2, T-3) treatments and absolute quantification (MS/MS analysis) was used to detect statistically significant expressed proteins. In this study, we investigated the adaptation mechanisms of wheat seedlings exposed to high concentration of NaCl treatment (200 mM) for 15 days in response to bacterial inoculation based on proteomic data. The identified proteins were distributed in different cellular, biological and molecular functions. Under salt stress, proteins related to ion-transport, metabolic pathway, protein synthesis and defense responsive were increased to a certain extent. A broader comparison of the proteome of wheat plant under different treatments revealed that changes in some of the metabolic pathway may be involved in stress adaption in response to PGPR inoculation. Hierarchical cluster analysis identified the various up-regulated/down-regulated proteins into tested three treatments. Our results suggest that bacterial inoculation enhanced the ability of wheat plant to combat salt stress via regulation of transcription factors, promoting antioxidative activity, induction of defense enzymes, lignin biosynthesis, and acceleration of protein synthesis.
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Affiliation(s)
- Rajnish Prakash Singh
- Department of Biological Science, Birla Institute of Technology and Science (BITS), Pilani, Rajasthan, India
| | | | - Shahid Khan
- Department of Biological Science, Birla Institute of Technology and Science (BITS), Pilani, Rajasthan, India
| | - Prabhat Nath Jha
- Department of Biological Science, Birla Institute of Technology and Science (BITS), Pilani, Rajasthan, India
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Valdameri G, Alberton D, Moure VR, Kokot TB, Kukolj C, Brusamarello-Santos LCC, Monteiro RA, Pedrosa FDO, de Souza EM. Herbaspirillum rubrisubalbicans, a mild pathogen impairs growth of rice by augmenting ethylene levels. PLANT MOLECULAR BIOLOGY 2017; 94:625-640. [PMID: 28674938 DOI: 10.1007/s11103-017-0629-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 06/23/2017] [Indexed: 06/07/2023]
Abstract
Herbaspirillum rubrisubalbicans decreases growth of rice. Inoculation of rice with H. rubrisubalbicans increased the ACCO mRNA levels and ethylene production. The H. rubrisubalbicans rice interactions were further characterized by proteomic approach. Herbaspirillum rubrisubalbicans is a well-known growth-promoting rhizobacteria that can also act as a mild phyto-pathogen. During colonisation of rice, RT-qPCR analyses showed that H. rubrisubalbicans up-regulates the methionine recycling pathway as well as phyto-siderophore synthesis genes. mRNA levels of ACC oxidase and ethylene levels also increased in rice roots but inoculation with H. rubrisubalbicans impaired growth of the rice plant. A proteomic approach was used to identify proteins specifically modulated by H. rubrisubalbicans in rice and amongst the differentially expressed proteins a V-ATPase and a 14-3-3 protein were down-regulated. Several proteins of H. rubrisubalbicans were identified, including the type VI secretion system effector Hcp1, suggesting that protein secretion play a role colonisation in rice. Finally, the alkyl hydroperoxide reductase, a primary scavenger of endogenous hydrogen peroxide was also identified. Monitoring the levels of reactive oxygen species in the epiphytic bacteria by flow cytometry revealed that H. rubrisubalbicans is subjected to oxidative stress, suggesting that the alkyl hydroperoxide reductase is an important regulator of redox homeostasis in plant-bacteria interactions.
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Affiliation(s)
- Glaucio Valdameri
- Department of Biochemistry and Molecular Biology, Centro Politécnico, Setor de Ciências Biológicas, Jardim das Américas, Federal University of Parana, Curitiba, 19046, PR, Brazil
- Department of Clinical Analysis, Federal University of Parana, Curitiba, PR, Brazil
| | - Dayane Alberton
- Department of Biochemistry and Molecular Biology, Centro Politécnico, Setor de Ciências Biológicas, Jardim das Américas, Federal University of Parana, Curitiba, 19046, PR, Brazil
- Department of Clinical Analysis, Federal University of Parana, Curitiba, PR, Brazil
| | - Vivian Rotuno Moure
- Department of Biochemistry and Molecular Biology, Centro Politécnico, Setor de Ciências Biológicas, Jardim das Américas, Federal University of Parana, Curitiba, 19046, PR, Brazil
| | - Thiago Borba Kokot
- Department of Biochemistry and Molecular Biology, Centro Politécnico, Setor de Ciências Biológicas, Jardim das Américas, Federal University of Parana, Curitiba, 19046, PR, Brazil
| | - Caroline Kukolj
- Department of Biochemistry and Molecular Biology, Centro Politécnico, Setor de Ciências Biológicas, Jardim das Américas, Federal University of Parana, Curitiba, 19046, PR, Brazil
| | - Liziane Cristina Campos Brusamarello-Santos
- Department of Biochemistry and Molecular Biology, Centro Politécnico, Setor de Ciências Biológicas, Jardim das Américas, Federal University of Parana, Curitiba, 19046, PR, Brazil
| | - Rose Adele Monteiro
- Department of Biochemistry and Molecular Biology, Centro Politécnico, Setor de Ciências Biológicas, Jardim das Américas, Federal University of Parana, Curitiba, 19046, PR, Brazil
| | - Fabio de Oliveira Pedrosa
- Department of Biochemistry and Molecular Biology, Centro Politécnico, Setor de Ciências Biológicas, Jardim das Américas, Federal University of Parana, Curitiba, 19046, PR, Brazil
| | - Emanuel Maltempi de Souza
- Department of Biochemistry and Molecular Biology, Centro Politécnico, Setor de Ciências Biológicas, Jardim das Américas, Federal University of Parana, Curitiba, 19046, PR, Brazil.
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Tiwari S, Prasad V, Chauhan PS, Lata C. Bacillus amyloliquefaciens Confers Tolerance to Various Abiotic Stresses and Modulates Plant Response to Phytohormones through Osmoprotection and Gene Expression Regulation in Rice. FRONTIERS IN PLANT SCIENCE 2017; 8:1510. [PMID: 28900441 PMCID: PMC5581838 DOI: 10.3389/fpls.2017.01510] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 08/16/2017] [Indexed: 05/18/2023]
Abstract
Being sessile in nature, plants have to withstand various adverse environmental stress conditions including both biotic and abiotic stresses. Comparatively, abiotic stresses such as drought, salinity, high temperature, and cold pose major threat to agriculture by negatively impacting plant growth and yield worldwide. Rice is one of the most widely consumed staple cereals across the globe, the production and productivity of which is also severely affected by different abiotic stresses. Therefore, several crop improvement programs are directed toward developing stress tolerant rice cultivars either through marker assisted breeding or transgenic technology. Alternatively, some known rhizospheric competent bacteria are also known to improve plant growth during abiotic stresses. A plant growth promoting rhizobacteria (PGPR), Bacillus amyloliquefaciens NBRI-SN13 (SN13) was previously reported by our lab to confer salt stress tolerance to rice seedlings. However, the present study investigates the role of SN13 in ameliorating various abiotic stresses such as salt, drought, desiccation, heat, cold, and freezing on a popular rice cv. Saryu-52 under hydroponic growth conditions. Apart from this, seedlings were also exogenously supplied with abscisic acid (ABA), salicylic acid (SA), jasmonic acid (JA) and ethephon (ET) to study the role of SN13 in phytohormone-induced stress tolerance as well as its role in abiotic and biotic stress cross-talk. All abiotic stresses and phytohormone treatments significantly affected various physiological and biochemical parameters like membrane integrity and osmolyte accumulation. SN13 also positively modulated stress-responsive gene expressions under various abiotic stresses and phytohormone treatments suggesting its multifaceted role in cross-talk among stresses and phytohormones in response to PGPR. To the best of our knowledge, this is the first report on detailed analysis of plant growth promotion and stress alleviation by a PGPR in rice seedlings subjected to various abiotic stresses and phytohormone treatments for 0, 1, 3, 10, and 24 h.
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Affiliation(s)
- Shalini Tiwari
- Council of Scientific & Industrial Research–National Botanical Research InstituteLucknow, India
- Department of Botany, University of LucknowLucknow, India
| | - Vivek Prasad
- Department of Botany, University of LucknowLucknow, India
| | - Puneet S. Chauhan
- Council of Scientific & Industrial Research–National Botanical Research InstituteLucknow, India
| | - Charu Lata
- Council of Scientific & Industrial Research–National Botanical Research InstituteLucknow, India
- *Correspondence: Charu Lata, ;
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Du N, Shi L, Yuan Y, Li B, Shu S, Sun J, Guo S. Proteomic Analysis Reveals the Positive Roles of the Plant-Growth-Promoting Rhizobacterium NSY50 in the Response of Cucumber Roots to Fusarium oxysporum f. sp. cucumerinum Inoculation. FRONTIERS IN PLANT SCIENCE 2016; 7:1859. [PMID: 28018395 PMCID: PMC5155491 DOI: 10.3389/fpls.2016.01859] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 11/25/2016] [Indexed: 05/30/2023]
Abstract
Plant-growth-promoting rhizobacteria (PGPR) can both improve plant growth and enhance plant resistance against a variety of environmental stresses. To investigate the mechanisms that PGPR use to protect plants under pathogenic attack, transmission electron microscopy analysis and a proteomic approach were designed to test the effects of the new potential PGPR strain Paenibacillus polymyxa NSY50 on cucumber seedling roots after they were inoculated with the destructive phytopathogen Fusarium oxysporum f. sp. cucumerinum (FOC). NSY50 could apparently mitigate the injury caused by the FOC infection and maintain the stability of cell structures. The two-dimensional electrophoresis (2-DE) approach in conjunction with MALDI-TOF/TOF analysis revealed a total of 56 proteins that were differentially expressed in response to NSY50 and/or FOC. The application of NSY50 up-regulated most of the identified proteins that were involved in carbohydrate metabolism and amino acid metabolism under normal conditions, which implied that both energy generation and the production of amino acids were enhanced, thereby ensuring an adequate supply of amino acids for the synthesis of new proteins in cucumber seedlings to promote plant growth. Inoculation with FOC inhibited most of the proteins related to carbohydrate and energy metabolism and to protein metabolism. The combined inoculation treatment (NSY50+FOC) accumulated abundant proteins involved in defense mechanisms against oxidation and detoxification as well as carbohydrate metabolism, which might play important roles in preventing pathogens from attacking. Meanwhile, western blotting was used to analyze the accumulation of enolase (ENO) and S-adenosylmethionine synthase (SAMs). NSY50 further increased the expression of ENO and SAMs under FOC stress. In addition, NSY50 adjusted the transcription levels of genes related to those proteins. Taken together, these results suggest that P. polymyxa NSY50 may promote plant growth and alleviate FOC-induced damage by improving the metabolism and activation of defense-related proteins in cucumber roots.
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Affiliation(s)
- Nanshan Du
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Lu Shi
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Yinghui Yuan
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Bin Li
- Department of Horticulture, Shanxi Agricultural UniversityTaigu, China
| | - Sheng Shu
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
- Suqian Academy of Protected Horticulture, Nanjing Agricultural UniversitySuqian, China
| | - Jin Sun
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
- Suqian Academy of Protected Horticulture, Nanjing Agricultural UniversitySuqian, China
| | - Shirong Guo
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
- Suqian Academy of Protected Horticulture, Nanjing Agricultural UniversitySuqian, China
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Henning JA, Weston DJ, Pelletier DA, Timm CM, Jawdy SS, Classen AT. Root bacterial endophytes alter plant phenotype, but not physiology. PeerJ 2016; 4:e2606. [PMID: 27833797 PMCID: PMC5101591 DOI: 10.7717/peerj.2606] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 09/24/2016] [Indexed: 12/15/2022] Open
Abstract
Plant traits, such as root and leaf area, influence how plants interact with their environment and the diverse microbiota living within plants can influence plant morphology and physiology. Here, we explored how three bacterial strains isolated from the Populus root microbiome, influenced plant phenotype. We chose three bacterial strains that differed in predicted metabolic capabilities, plant hormone production and metabolism, and secondary metabolite synthesis. We inoculated each bacterial strain on a single genotype of Populus trichocarpa and measured the response of plant growth related traits (root:shoot, biomass production, root and leaf growth rates) and physiological traits (chlorophyll content, net photosynthesis, net photosynthesis at saturating light-Asat, and saturating CO2-Amax). Overall, we found that bacterial root endophyte infection increased root growth rate up to 184% and leaf growth rate up to 137% relative to non-inoculated control plants, evidence that plants respond to bacteria by modifying morphology. However, endophyte inoculation had no influence on total plant biomass and photosynthetic traits (net photosynthesis, chlorophyll content). In sum, bacterial inoculation did not significantly increase plant carbon fixation and biomass, but their presence altered where and how carbon was being allocated in the plant host.
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Affiliation(s)
- Jeremiah A. Henning
- Department of Ecology & Evolutionary Biology, University of Tennessee–Knoxville, Knoxville, Tennessee, United States
| | - David J. Weston
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Dale A. Pelletier
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Collin M. Timm
- Joint Institute for Biological Sciences, University of Tennessee, Oak Ridge, TN, United States
| | - Sara S. Jawdy
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Aimée T. Classen
- Department of Ecology & Evolutionary Biology, University of Tennessee–Knoxville, Knoxville, Tennessee, United States
- Center for Macroecology, Evolution, and Climate, The Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
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Kwon YS, Lee DY, Rakwal R, Baek SB, Lee JH, Kwak YS, Seo JS, Chung WS, Bae DW, Kim SG. Proteomic analyses of the interaction between the plant-growth promoting rhizobacterium Paenibacillus polymyxa E681 and Arabidopsis thaliana. Proteomics 2016; 16:122-35. [PMID: 26460066 DOI: 10.1002/pmic.201500196] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 09/06/2015] [Accepted: 10/06/2015] [Indexed: 01/08/2023]
Abstract
Plant growth-promoting rhizobacteria (PGPR) facilitate the plant growth and enhance their induced systemic resistance (ISR) against a variety of environmental stresses. In this study, we carried out integrative analyses on the proteome, transcriptome, and metabolome to investigate Arabidopsis root and shoot responses to the well-known PGPR strain Paenibacillus polymyxa (P. polymyxa) E681. Shoot fresh and root dry weights were increased, whereas root length was decreased by treatment with P. polymyxa E681. 2DE approach in conjunction with MALDI-TOF/TOF analysis revealed a total of 41 (17 spots in root, 24 spots in shoot) that were differentially expressed in response to P. polymyxa E681. Biological process- and molecular function-based bioinformatics analysis resulted in their classification into seven different protein groups. Of these, 36 proteins including amino acid metabolism, antioxidant, defense and stress response, photosynthesis, and plant hormone-related proteins were up-regulated, whereas five proteins including three carbohydrate metabolism- and one amino acid metabolism-related, and one unknown protein were down-regulated, respectively. A good correlation was observed between protein and transcript abundances for the 12 differentially expressed proteins during interactions as determined by qPCR analysis. Metabolite analysis using LC-MS/MS revealed highly increased levels of tryptophan, indole-3-acetonitrile (IAN), indole-3-acetic acid (IAA), and camalexin in the treated plants. Arabidopsis plant inoculated P. polymyxa E681 also showed resistance to Botrytis cinerea infection. Taken together these results suggest that P. polymyxa E681 may promote plant growth by induced metabolism and activation of defense-related proteins against fungal pathogen.
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Affiliation(s)
- Young Sang Kwon
- Division of Applied Life Science (BK21 Plus Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Republic of Korea.,Environmental Biology and Chemistry Center, Korea Institute of Toxicology, Jinju, Republic of Korea
| | - Dong Yeol Lee
- Division of Applied Life Science (BK21 Plus Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Republic of Korea
| | - Randeep Rakwal
- Faculty of Health and Sport Sciences and Tsukuba International Academy for Sport Studies (TIAS), University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Seong-Bum Baek
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon, Republic of Korea
| | - Jeom Ho Lee
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon, Republic of Korea
| | - Youn-Sig Kwak
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, Republic of Korea
| | - Jong-Su Seo
- Environmental Biology and Chemistry Center, Korea Institute of Toxicology, Jinju, Republic of Korea
| | - Woo Sik Chung
- Division of Applied Life Science (BK21 Plus Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Republic of Korea
| | - Dong-Won Bae
- Center for Research Facilities, Gyeongsang National University, Jinju, Republic of Korea
| | - Sang Gon Kim
- Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon, Republic of Korea
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Kumar S, Chauhan PS, Agrawal L, Raj R, Srivastava A, Gupta S, Mishra SK, Yadav S, Singh PC, Raj SK, Nautiyal CS. Paenibacillus lentimorbus Inoculation Enhances Tobacco Growth and Extenuates the Virulence of Cucumber mosaic virus. PLoS One 2016; 11:e0149980. [PMID: 26934600 PMCID: PMC4774868 DOI: 10.1371/journal.pone.0149980] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 02/08/2016] [Indexed: 01/08/2023] Open
Abstract
Previous studies with Paenibacillus lentimorbus B-30488" (hereafter referred as B-30488), a plant growth promoting rhizobacteria (PGPR) isolated from cow's milk, revealed its capabilities to improve plant quality under normal and stress conditions. Present study investigates its potential as a biocontrol agent against an economically important virus, Cucumber mosaic virus (CMV), in Nicotiana tabacum cv. White Burley plants and delineates the physical, biophysical, biochemical and molecular perturbations due to the trilateral interactions of PGPR-host-CMV. Soil inoculation of B-30488 enhanced the plant vigor while significantly decreased the virulence and virus RNA accumulation by ~12 fold (91%) in systemic leaves of CMV infected tobacco plants as compared to the control ones. Histology of these leaves revealed the improved tissue's health and least aging signs in B-30488 inoculated tobacco plants, with or without CMV infection, and showed lesser intercellular spaces between collenchyma cells, reduced amount of xyloglucans and pectins in connecting primary cells, and higher polyphenol accumulation in hypodermis layer extending to collenchyma cells. B-30488 inoculation has favorably maneuvered the essential biophysical (ion leakage and photosynthetic efficiency) and biochemical (sugar, proline, chlorophyll, malondialdehyde, acid phosphatase and alkaline phosphatase) attributes of tobacco plants to positively regulate and release the virus stress. Moreover, activities of defense related enzymes (ascorbate peroxidase, guaiacol peroxidase, superoxide dismutase and catalase) induced due to CMV-infection were ameliorated with inoculation of B-30488, suggesting systemic induced resistance mediated protection against CMV in tobacco. The quantitative RT-PCR analyses of the genes related to normal plant development, stress and pathogenesis also corroborate well with the biochemical data and revealed the regulation (either up or down) of these genes in favor of plant to combat the CMV mediated stress. These improvements led tobacco plant to produce more flowers and seeds with no negative impact on plant health. The present study may advocate the applicability of B-30488 for crop yield improvement in virus infested areas.
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Affiliation(s)
- Susheel Kumar
- Plant Molecular Virology Laboratory, Council of Scientific and Industrial (CSIR)-National Botanical Research Institute (NBRI), Rana Pratap Marg, Lucknow (UP), India
| | - Puneet Singh Chauhan
- Division of Plant Microbe Interaction, CSIR-NBRI, Rana Pratap Marg, Lucknow (UP), India
| | - Lalit Agrawal
- Division of Plant Microbe Interaction, CSIR-NBRI, Rana Pratap Marg, Lucknow (UP), India
| | - Rashmi Raj
- Plant Molecular Virology Laboratory, Council of Scientific and Industrial (CSIR)-National Botanical Research Institute (NBRI), Rana Pratap Marg, Lucknow (UP), India
| | - Ashish Srivastava
- Plant Molecular Virology Laboratory, Council of Scientific and Industrial (CSIR)-National Botanical Research Institute (NBRI), Rana Pratap Marg, Lucknow (UP), India
| | - Swati Gupta
- Division of Plant Microbe Interaction, CSIR-NBRI, Rana Pratap Marg, Lucknow (UP), India
| | - Shashank Kumar Mishra
- Division of Plant Microbe Interaction, CSIR-NBRI, Rana Pratap Marg, Lucknow (UP), India
| | - Sumit Yadav
- Division of Plant Microbe Interaction, CSIR-NBRI, Rana Pratap Marg, Lucknow (UP), India
| | - Poonam C. Singh
- Division of Plant Microbe Interaction, CSIR-NBRI, Rana Pratap Marg, Lucknow (UP), India
| | - Shri Krishna Raj
- Plant Molecular Virology Laboratory, Council of Scientific and Industrial (CSIR)-National Botanical Research Institute (NBRI), Rana Pratap Marg, Lucknow (UP), India
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Enhancement of drought stress tolerance in crops by plant growth promoting rhizobacteria. Microbiol Res 2016; 184:13-24. [DOI: 10.1016/j.micres.2015.12.003] [Citation(s) in RCA: 560] [Impact Index Per Article: 70.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 12/12/2015] [Accepted: 12/14/2015] [Indexed: 01/25/2023]
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Singh RP, Jha PN. A Halotolerant Bacterium Bacillus licheniformis HSW-16 Augments Induced Systemic Tolerance to Salt Stress in Wheat Plant ( Triticum aestivum). FRONTIERS IN PLANT SCIENCE 2016; 7:1890. [PMID: 28018415 PMCID: PMC5159429 DOI: 10.3389/fpls.2016.01890] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Accepted: 11/30/2016] [Indexed: 05/08/2023]
Abstract
Certain plant growth promoting bacteria can protect associated plants from harmful effects of salinity. We report the isolation and characterization of 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase bacterium Bacillus licheniformis HSW-16 capable of ameliorating salt (NaCl) stress in wheat plants. The bacterium was isolated from the water of Sambhar salt lake, Rajasthan, India. The presence of ACC deaminase activity was confirmed by enzyme assay and analysis of AcdS gene, a structural gene for ACC deaminase. Inoculation of B. licheniformis HSW-16 protected wheat plants from growth inhibition caused by NaCl and increased plant growth (6-38%) in terms of root length, shoot length, fresh weight, and dry weight. Ionic analysis of plant samples showed that the bacterial inoculation decreased the accumulation of Na+ content (51%), and increased K+ (68%), and Ca2+ content (32%) in plants at different concentration of NaCl. It suggested that bacterial inoculation protected plants from the effect of NaCl by decreasing the level of Na+ in plants. Production of exopolysaccharide by the B. licheniformis HSW-16 can also protect from Na+ by binding this ion. Moreover, application of test isolate resulted in an increase in certain osmolytes such as total soluble sugar, total protein content, and a decrease in malondialdehyde content, illustrating their role in the protection of plants. The ability of B. licheniformis HSW-16 to colonize plant root surface was examined by staining the bacterium with acridine orange followed by fluorescence microscopy and polymerase chain reaction-based DNA finger printing analysis. These results suggested that B. licheniformis HSW-16 could be used as a bioinoculant to improve the productivity of plants growing under salt stress.
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Vaishnav A, Kumari S, Jain S, Varma A, Choudhary DK. Putative bacterial volatile-mediated growth in soybean (Glycine max L. Merrill) and expression of induced proteins under salt stress. J Appl Microbiol 2015; 119:539-51. [PMID: 26042866 DOI: 10.1111/jam.12866] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 05/23/2015] [Accepted: 05/23/2015] [Indexed: 12/28/2022]
Abstract
AIMS Plant root-associated rhizobacteria elicit plant immunity referred to as induced systemic tolerance (IST) against multiple abiotic stresses. Among multibacterial determinants involved in IST, the induction of IST and promotion of growth by putative bacterial volatile compounds (VOCs) is reported in the present study. METHODS AND RESULTS To characterize plant proteins induced by putative bacterial VOCs, proteomic analysis was performed by MALDI-MS/MS after exposure of soybean seedlings to a new strain of plant growth promoting rhizobacteria (PGPR) Pseudomonas simiae strain AU. Furthermore, expression analysis by Western blotting confirmed that the vegetative storage protein (VSP), gamma-glutamyl hydrolase (GGH) and RuBisCo large chain proteins were significantly up-regulated by the exposure to AU strain and played a major role in IST. VSP has preponderant roles in N accumulation and mobilization, acid phosphatase activity and Na(+) homeostasis to sustain plant growth under stress condition. More interestingly, plant exposure to the bacterial strain significantly reduced Na(+) and enhanced K(+) and P content in root of soybean seedlings under salt stress. In addition, high accumulation of proline and chlorophyll content also provided evidence of protection against osmotic stress during the elicitation of IST by bacterial exposure. CONCLUSIONS The present study reported for the first time that Ps. simiae produces a putative volatile blend that can enhance soybean seedling growth and elicit IST against 100 mmol l(-1) NaCl stress condition. SIGNIFICANCE AND IMPACT OF THE STUDY The identification of such differentially expressed proteins provide new targets for future studies that will allow assessment of their physiological roles and significance in the response of glycophytes to stresses. Further work should uncover more about the chemical side of VOC compounds and a detailed study about their molecular mechanism responsible for plant growth.
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Affiliation(s)
- A Vaishnav
- Amity Institute of Microbial Technology (AIMT), Noida, India
| | - S Kumari
- Amity Institute of Microbial Technology (AIMT), Noida, India
| | - S Jain
- Amity Institute of Microbial Technology (AIMT), Noida, India
| | - A Varma
- Amity Institute of Microbial Technology (AIMT), Noida, India
| | - D K Choudhary
- Amity Institute of Microbial Technology (AIMT), Noida, India
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Fang X, Chen J, Dai L, Ma H, Zhang H, Yang J, Wang F, Yan C. Proteomic dissection of plant responses to various pathogens. Proteomics 2015; 15:1525-43. [DOI: 10.1002/pmic.201400384] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Revised: 11/28/2014] [Accepted: 01/12/2015] [Indexed: 01/15/2023]
Affiliation(s)
- Xianping Fang
- Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization and Hunan Provincial Key Laboratory of Biology and Control of Plant Diseases and Insect Pests; Hunan Agricultural University; Changsha Hunan P. R. China
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control; Institute of Virology and Biotechnology; Zhejiang Academy of Agricultural Sciences; Hangzhou P. R. China
- Institute of Biology; Hangzhou Academy of Agricultural Sciences; Hangzhou P. R. China
| | - Jianping Chen
- Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization and Hunan Provincial Key Laboratory of Biology and Control of Plant Diseases and Insect Pests; Hunan Agricultural University; Changsha Hunan P. R. China
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control; Institute of Virology and Biotechnology; Zhejiang Academy of Agricultural Sciences; Hangzhou P. R. China
| | - Liangying Dai
- Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization and Hunan Provincial Key Laboratory of Biology and Control of Plant Diseases and Insect Pests; Hunan Agricultural University; Changsha Hunan P. R. China
| | - Huasheng Ma
- Institute of Biology; Hangzhou Academy of Agricultural Sciences; Hangzhou P. R. China
| | - Hengmu Zhang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control; Institute of Virology and Biotechnology; Zhejiang Academy of Agricultural Sciences; Hangzhou P. R. China
| | - Jian Yang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control; Institute of Virology and Biotechnology; Zhejiang Academy of Agricultural Sciences; Hangzhou P. R. China
| | - Fang Wang
- Laboratory of Biotechnology; Institute of Biotechnology; Ningbo Academy of Agricultural Sciences; Ningbo P. R. China
| | - Chengqi Yan
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control; Institute of Virology and Biotechnology; Zhejiang Academy of Agricultural Sciences; Hangzhou P. R. China
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Xie S, Wu H, Chen L, Zang H, Xie Y, Gao X. Transcriptome profiling of Bacillus subtilis OKB105 in response to rice seedlings. BMC Microbiol 2015; 15:21. [PMID: 25651892 PMCID: PMC4326333 DOI: 10.1186/s12866-015-0353-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 01/19/2015] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Plant growth-promoting rhizobacteria (PGPR) are soil beneficial microorganisms that colonize plant roots for nutritional purposes and accordingly benefit plants by increasing plant growth or reducing disease. However, the mechanisms and pathways involved in the interactions between PGPR and plants remain unclear. In order to better understand these complex plant-PGPR interactions, changes in the transcriptome of the typical PGPR Bacillus subtilis in response to rice seedlings were analyzed. RESULTS Microarray technology was used to study the global transcriptionl response of B. subtilis OKB105 to rice seedlings after an interaction period of 2 h. A total of 176 genes representing 3.8% of the B. subtilis strain OKB105 transcriptome showed significantly altered expression levels in response to rice seedlings. Among these, 52 were upregulated, the majority of which are involved in metabolism and transport of nutrients, and stress responses, including araA, ywkA, yfls, mtlA, ydgG et al. The 124 genes that were downregulated included cheV, fliL, spmA and tua, and these are involved in chemotaxis, motility, sporulation and teichuronic acid biosynthesis, respectively. CONCLUSIONS We present a transcriptome analysis of the bacteria Bacillus subtilis OKB105 in response to rice seedings. Many of the 176 differentially expressed genes are likely to be involved in the interaction between Gram-positive bacteria and plants.
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Affiliation(s)
- Shanshan Xie
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Weigang No.1, Nanjing, 210095, People's Republic of China.
| | - Huijun Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Weigang No.1, Nanjing, 210095, People's Republic of China.
| | - Lina Chen
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Weigang No.1, Nanjing, 210095, People's Republic of China.
| | - Haoyu Zang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Weigang No.1, Nanjing, 210095, People's Republic of China.
| | - Yongli Xie
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Weigang No.1, Nanjing, 210095, People's Republic of China.
| | - Xuewen Gao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Weigang No.1, Nanjing, 210095, People's Republic of China.
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Gene expression profile affected by volatiles of new plant growth promoting rhizobacteria, Bacillus subtilis strain JS, in tobacco. Genes Genomics 2015. [DOI: 10.1007/s13258-015-0267-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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46
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Alberton D, Müller-Santos M, Brusamarello-Santos LCC, Valdameri G, Cordeiro FA, Yates MG, de Oliveira Pedrosa F, de Souza EM. Comparative Proteomics Analysis of the Rice Roots Colonized by Herbaspirillum seropedicae Strain SmR1 Reveals Induction of the Methionine Recycling in the Plant Host. J Proteome Res 2013; 12:4757-68. [DOI: 10.1021/pr400425f] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Dayane Alberton
- Department of Biochemistry
and Molecular Biology, Federal University of Paraná, Rua
Francisco H. dos Santos s/n Centro Politécnico, Curitiba, Paraná 81531-990, Brazil
| | - Marcelo Müller-Santos
- Department of Biochemistry
and Molecular Biology, Federal University of Paraná, Rua
Francisco H. dos Santos s/n Centro Politécnico, Curitiba, Paraná 81531-990, Brazil
| | | | - Glaucio Valdameri
- Department of Biochemistry
and Molecular Biology, Federal University of Paraná, Rua
Francisco H. dos Santos s/n Centro Politécnico, Curitiba, Paraná 81531-990, Brazil
| | - Fabio Aparecido Cordeiro
- Department of Biochemistry
and Molecular Biology, Federal University of Paraná, Rua
Francisco H. dos Santos s/n Centro Politécnico, Curitiba, Paraná 81531-990, Brazil
| | - Marshall Geoffrey Yates
- Department of Biochemistry
and Molecular Biology, Federal University of Paraná, Rua
Francisco H. dos Santos s/n Centro Politécnico, Curitiba, Paraná 81531-990, Brazil
| | - Fabio de Oliveira Pedrosa
- Department of Biochemistry
and Molecular Biology, Federal University of Paraná, Rua
Francisco H. dos Santos s/n Centro Politécnico, Curitiba, Paraná 81531-990, Brazil
| | - Emanuel Maltempi de Souza
- Department of Biochemistry
and Molecular Biology, Federal University of Paraná, Rua
Francisco H. dos Santos s/n Centro Politécnico, Curitiba, Paraná 81531-990, Brazil
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47
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Lim JH, Kim SD. Induction of Drought Stress Resistance by Multi-Functional PGPR Bacillus licheniformis K11 in Pepper. THE PLANT PATHOLOGY JOURNAL 2013; 29:201-8. [PMID: 25288947 PMCID: PMC4174774 DOI: 10.5423/ppj.si.02.2013.0021] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 03/09/2013] [Accepted: 03/11/2013] [Indexed: 05/22/2023]
Abstract
Drought stress is one of the major yield affecting factor for pepper plant. The effects of PGPRs were analyzed in relation with drought resistance. The PGPRs inoculated pepper plants tolerate the drought stress and survived as compared to non-inoculated pepper plants that died after 15 days of drought stress. Variations in protein and RNA accumulation patterns of inoculated and non-inoculated pepper plants subjected to drought conditions for 10 days were confirmed by two dimensional polyacrylamide gel electrophoresis (2D-PAGE) and differential display PCR (DD-PCR), respectively. A total of six differentially expressed stress proteins were identified in the treated pepper plants by 2D-PAGE. Among the stress proteins, specific genes of Cadhn, VA, sHSP and CaPR-10 showed more than a 1.5-fold expressed in amount in B. licheniformis K11-treated drought pepper compared to untreated drought pepper. The changes in proteins and gene expression patterns were attributed to the B. licheniformis K11. Accordingly, auxin and ACC deaminase producing PGPR B. licheniformis K11 could reduce drought stress in drought affected regions without the need for overusing agrochemicals and chemical fertilizer. These results will contribute to the development of a microbial agent for organic farming by PGPR.
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Affiliation(s)
- Jong-Hui Lim
- School of Biotechnology, Yeungnam University, Gyeongsan 712-749, Korea
- Institute of Safety and Quality Evaluation for Agrocultural Products, Kyungpook National University, Daegu 702-701, Korea
| | - Sang-Dal Kim
- School of Biotechnology, Yeungnam University, Gyeongsan 712-749, Korea
- Corresponding author. Phone) +82-53-810-3053, FAX) +82-53-810-4663, E-mail)
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Wang W, Chen LN, Wu H, Zang H, Gao S, Yang Y, Xie S, Gao X. Comparative proteomic analysis of rice seedlings in response to inoculation with Bacillus cereus. Lett Appl Microbiol 2013; 56:208-15. [PMID: 23216197 DOI: 10.1111/lam.12035] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2012] [Revised: 11/29/2012] [Accepted: 11/29/2012] [Indexed: 01/09/2023]
Abstract
UNLABELLED Reports suggest that Bacillus spp. can be used to increase plant growth and resistance to disease, but the molecular mechanisms underlying the interaction between Bacillus spp. and plant is not completely understood. In the present study, to clarify these underlying mechanisms, the interaction between Bacillus cereus and rice was investigated using two-dimensional gel electrophoresis. Through comparative analysis, a total of 31 differentially expressed proteins were obtained upon B. cereus NMSL88 treatment, including 22 proteins that were up-regulated and nine that were down-regulated. These data indicated that certain proteins involved in plant growth and development were up-regulated, such as xyloglucan endotransglycosylase. Interestingly, proteins involved in defence were also up-regulated, including peroxidases, glutathione S-transferases and kinases. Thus, proteins associated with disease resistance characteristics were induced in the plants after exposure to B. cereus NMSL88. In addition, several proteins involved in protein and lipid metabolism showed significant changes in expression. SIGNIFICANCE AND IMPACT OF THE STUDY The present study is the first report to reveal the molecular mechanisms involved in rice seedlings in response to inoculation with Bacillus cereus at the level of proteome. The results demonstrated that B. cereus NMSL88 can up-regulate the expression of proteins related to plant growth and defence, and lead to enhanced plant growth and disease resistance.
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Affiliation(s)
- W Wang
- Key Laboratory of Integrated Management of Crop Diseases and Pests, College of Plant Protection, Ministry of Education, Nanjing Agricultural University, Nanjing, China
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Petriccione M, Di Cecco I, Arena S, Scaloni A, Scortichini M. Proteomic changes in Actinidia chinensis shoot during systemic infection with a pandemic Pseudomonas syringae pv. actinidiae strain. J Proteomics 2013; 78:461-76. [DOI: 10.1016/j.jprot.2012.10.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 10/10/2012] [Accepted: 10/14/2012] [Indexed: 10/27/2022]
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Afroz A, Zahur M, Zeeshan N, Komatsu S. Plant-bacterium interactions analyzed by proteomics. FRONTIERS IN PLANT SCIENCE 2013; 4:21. [PMID: 23424014 PMCID: PMC3573209 DOI: 10.3389/fpls.2013.00021] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 01/29/2013] [Indexed: 05/04/2023]
Abstract
The evolution of the plant immune response has resulted in a highly effective defense system that is able to resist potential attack by microbial pathogens. The primary immune response is referred to as pathogen associated molecular pattern (PAMP) triggered immunity and has evolved to recognize common features of microbial pathogens. In response to the delivery of pathogen effector proteins, plants acquired R proteins to fight against pathogen attack. R-dependent defense response is important in understanding the biochemical and cellular mechanisms and underlying these interactions will enable molecular and transgenic approaches for crops with increased biotic resistance. Proteomic analyses are particularly useful for understanding the mechanisms of host plant against the pathogen attack. Recent advances in the field of proteome analyses have initiated a new research area, i.e., the analysis of more complex microbial communities and their interaction with plant. Such areas hold great potential to elucidate, not only the interactions between bacteria and their host plants, but also of bacteria-bacteria interactions between different bacterial taxa, symbiotic, pathogenic bacteria, and commensal bacteria. During biotic stress, plant hormonal signaling pathways prioritizes defense over other cellular functions. Some plant pathogens take advantage of hormone dependent regulatory system by mimicking hormones that interfere with host immune responses to promote virulence (vir). In this review, it is discussed the cross talk that plays important role in response to pathogens attack with different infection strategies using proteomic approaches.
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Affiliation(s)
- Amber Afroz
- Department of Biochemistry and Molecular Biology, Nawaz Sharif Medical College, University of Gujrat, Hafiz Hayat Campus GujratGujrat, Pakistan
- *Correspondence: Amber Afroz, Department of Biochemistry and Molecular Biology, Nawaz Sharif Medical College, University of Gujrat, Hafiz Hayat Campus Gujrat, Gujrat, Pakistan. e-mail:
| | - Muzna Zahur
- Department of Biochemistry and Molecular Biology, Nawaz Sharif Medical College, University of Gujrat, Hafiz Hayat Campus GujratGujrat, Pakistan
| | - Nadia Zeeshan
- Department of Biochemistry and Molecular Biology, Nawaz Sharif Medical College, University of Gujrat, Hafiz Hayat Campus GujratGujrat, Pakistan
| | - Setsuko Komatsu
- National Institute of Crop Science, National Agriculture and Food Research OrganizationTsukuba, Japan
- Setsuko Komatsu, National Institute of Crop Science, National Agriculture and Food Research Organization, 2-1-18 Kannondai, Tsukuba 305-8518, Japan. e-mail:
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