Abstract
A greenhouse test was carried out to examine the effects on tomato growth of application of purple nonsulfur bacterium Rhodopseudomonas sp. which had enhanced germination and growth of tomato seed under axenic conditions. The shoot length of tomato plant inoculated by Rhodopseudomonas sp. KL9 increased by 34.6% compared to that of control in 8 weeks of cultivation. During the same period, this strain increased 120.6 and 78.6% of dry weight of shoot and root of tomato plants, respectively. The formation ratio of tomato fruit from flower was also raised by inoculation of KL9. In addition, Rhodopseudomonas sp. KL9 treatment enhanced the fresh weight and lycopene content in the harvested tomato fruits by 98.3 and 48.3%, respectively compared to those of the uninoculated control. When the effect on the indigenous bacterial community and fate of the inoculated Rhodopseudomonas sp. KL9 were monitored by denaturing gradient gel electrophoresis analysis, its application did not affect the native bacterial community in tomato rhizosphere soil, but should be repeated to maintain its population size. This bacterial capability may be applied as an environment-friendly biofertilizer to cultivation of high quality tomato and other crops including lycopene-containing vegetables and fruits.
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- Co-inoculation of Indigenous Pseudomonas sp. and Priestia sp. to Improve the Soil Health, Plant Growth, Yield and Fruit Quality Parameters of Tomato (Solanum lycopersicum L.)
Taman, Jupinder Kaur, S. S. Walia
Current Microbiology.2025;[Epub] CrossRef - The promising role of purple phototrophic bacteria in achieving the United Nations Sustainable Development Goals
Ali Amini, Valiallah Amirian Mojarad, Simone Rossi, Andrea Turolla
Journal of Hazardous Materials Advances.2025; : 100884. CrossRef - Microbial desalination cells in brackish RO reject treatment: Challenges and opportunities
Karishma Maheshwari, Monika Sogani, Zainab Syed, Himanshi Sen, Jayana Rajvanshi, Kumar Sonu, A.B. Gupta, Pushkal Agrawal
Desalination.2025; 613: 119022. CrossRef - Selenium-Mediated Shaping of Citrus Rhizobiome for Promotion in Root Growth and Soil Phosphorus Activation
Yanni Tang, Yingjie Zhou, Pengwei Wang, Liqiang Ge, Wei Lou, Xiang Yan, Shiqian Li, Xu Wang, Chengxiao Hu, Xiaohu Zhao
Journal of Agricultural and Food Chemistry.2024; 72(30): 16624. CrossRef - Influence of Plant Growth Promoting Rhizobacteria (PGPR) on the Growth and Yield of Sunflower (Helianthus annus L.) Under Salt Stress
Shafi Ullah, Muhammad Ikram, Samina Sarfaraz, Ijaz ul Haq, Atika Khan, Zaryab Murad, Fazal Munsif
Journal of Crop Health.2024; 76(5): 1221. CrossRef - Improving nitrogen content in soil and lemon balm (Melissa officinalis L.) yield by purple nonsulfur bacteria Rhodopseudomonas palustris in two consecutive seasons
Le Thi My Thu, Ly Ngoc Thanh Xuan, Nguyen Huynh Minh Anh, Nguyen Duc Trong, Nguyen Thi Xuan Dao, Le Thanh Quang, Le Thi Ngoc Tho, Ha Ngoc Thu, Nguyen Tuan Anh, Nguyen Thi Thuy Diem, Nguyen Quoc Khuong
International Microbiology.2024; 27(6): 1821. CrossRef - The potential of phosphorus-solubilizing purple nonsulfur bacteria in agriculture: Present and future perspectives
Nguyen Quoc Khuong, Le Tien Dat, Ly Ngoc Thanh Xuan, Le Thanh Quang, Nguyen Khoi Nghia
Open Agriculture.2024;[Epub] CrossRef - Investigating the efficacy of purple non-sulfur bacteria (PNSB) inoculation on djulis (Chenopodium Formosanum Koidz.) growth, yield, and maturity period modulation
Laurence Shiva Sundar, Yao-Tsung Chang, Yun-Yang Chao
Plant and Soil.2024; 496(1-2): 289. CrossRef - Utilization of lysed and dried bacterial biomass from the marine purple photosynthetic bacterium Rhodovulum sulfidophilum as a sustainable nitrogen fertilizer for plant production
Shamitha Rao Morey-Yagi, Yu Kinoshita, Ko Motoki, Yu Iwahashi, Dao Duy Hanh, Shota Kato, Ryohei Nakano, Kumiko Ochiai, Masaru Kobayashi, Tetsuya Nakazaki, Keiji Numata
npj Sustainable Agriculture.2024;[Epub] CrossRef - Characteristics of Rhizosphere Microbiome, Soil Chemical Properties, and Plant Biomass and Nutrients in Citrus reticulata cv. Shatangju Exposed to Increasing Soil Cu Levels
Xiaorong Mo, Qichun Huang, Chuanwu Chen, Hao Xia, Muhammad Riaz, Xiaomin Liang, Jinye Li, Yilin Chen, Qiling Tan, Songwei Wu, Chengxiao Hu
Plants.2024; 13(17): 2344. CrossRef - Exogenous 5‐aminolevulinic acid promotes carotenoid accumulation in tomato fruits by regulating ethylene biosynthesis and signaling
Junwen Wang, Yongmei He, Guangzheng Wang, Ruirui Li, Yu Niu, Kai Liu, Jing Zhang, Zhongqi Tang, Jian Lyu, Jianming Xie, Yue Wu, Jihua Yu
Physiologia Plantarum.2024;[Epub] CrossRef - Purple non-sulfur bacteria for biotechnological applications
Hailee M Morrison, Arpita Bose
Journal of Industrial Microbiology and Biotechnology.2024;[Epub] CrossRef - Beneath the blooms: Unearthing the effect of rhizospheric bacteria on floral signals and pollinator preferences
Diego M. Magalhães, André L. Lourenção, José Maurício S. Bento
Plant, Cell & Environment.2024; 47(3): 782. CrossRef - Characterization of the Pyrroloquinoline Quinone Producing Rhodopseudomonas palustris as a Plant Growth-Promoting Bacterium under Photoautotrophic and Photoheterotrophic Culture Conditions
Shou-Chen Lo, Shang-Yieng Tsai, Wei-Hsiang Chang, I-Chen Wu, Nga-Lai Sou, Shih-Hsun Walter Hung, En-Pei Isabel Chiang, Chieh-Chen Huang
International Journal of Molecular Sciences.2023; 24(18): 14080. CrossRef - Reduction in Salt Stress Due to the Action of Halophilic Bacteria That Promote Plant Growth in Solanum lycopersicum
Javier Pérez-Inocencio, Gabriel Iturriaga, Cesar L. Aguirre-Mancilla, María Soledad Vásquez-Murrieta, Marcos Alfonso Lastiri-Hernández, Dioselina Álvarez-Bernal
Microorganisms.2023; 11(11): 2625. CrossRef - Enhanced fruit yield and quality of tomato by photosynthetic bacteria and CO2 enrichment under reduced irrigation
Bin Du, M.K. Shukla, Xiaolin Yang, Taisheng Du
Agricultural Water Management.2023; 277: 108106. CrossRef - Plant-Growth-Promoting Effect by Cell Components of Purple Non-Sulfur Photosynthetic Bacteria
Shuhei Hayashi, Yasunari Iwamoto, Yuki Hirakawa, Koichi Mori, Naoki Yamada, Takaaki Maki, Shinjiro Yamamoto, Hitoshi Miyasaka
Microorganisms.2022; 10(4): 771. CrossRef - Metagenomic analysis of the dynamical conversion of photosynthetic bacterial communities in different crop fields over different growth periods
Ju-E Cheng, Pin Su, Zhan-Hong Zhang, Li-Min Zheng, Zhong-Yong Wang, Muhammad Rizwan Hamid, Jian-Ping Dai, Xiao-Hua Du, Li-Jie Chen, Zhong-Ying Zhai, Xiao-Ting Kong, Yong Liu, De-Yong Zhang, Suzanne L. Ishaq
PLOS ONE.2022; 17(7): e0262517. CrossRef - The Effect of Inorganic Fertilizer and Biofertilizer Applications on Some Quality and Biochemical Properties of Safflower (Carthamus tinctorius L.)
Muhammed Said YOLCİ, Rüveyde TUNÇTÜRK
Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi.2022; 32(4): 740. CrossRef - Biofertilization with photosynthetic bacteria as a new strategy for mitigating photosynthetic acclimation to elevated CO2 on cherry tomato
Bin Du, M.K. Shukla, Risheng Ding, Xiaolin Yang, Taisheng Du
Environmental and Experimental Botany.2022; 194: 104758. CrossRef - Application of 5-aminolevulinic acid promotes ripening and accumulation of primary and secondary metabolites in postharvest tomato fruit
Junwen Wang, Hong Yuan, Yue Wu, Jihua Yu, Basharat Ali, Jing Zhang, Zhongqi Tang, Jianming Xie, Jian Lyu, Weibiao Liao
Frontiers in Nutrition.2022;[Epub] CrossRef - Rhodopseudomonas palustris PSB-06 Induces Plant Defense and Suppresses the Transmission of Tomato Chlorosis Virus by Bemisia tabaci MED
Dingyihui Lu, Hao Yue, Jianbin Chen, Yan Wei, Zhanhong Zhang, Jun Zeng, Zhuo Zhang, Xuguo Zhou, Limin Zheng, Yang Gao, Jing Peng, Xiaobin Shi, Yong Liu, Deyong Zhang
Agronomy.2022; 12(11): 2631. CrossRef - The Long-Term Effects of Using Phosphate-Solubilizing Bacteria and Photosynthetic Bacteria as Biofertilizers on Peanut Yield and Soil Bacteria Community
Yiming Wang, Shuang Peng, Qingqing Hua, Chongwen Qiu, Pan Wu, Xiaoli Liu, Xiangui Lin
Frontiers in Microbiology.2021;[Epub] CrossRef - From Lab to Farm: Elucidating the Beneficial Roles of Photosynthetic Bacteria in Sustainable Agriculture
Sook-Kuan Lee, Huu-Sheng Lur, Chi-Te Liu
Microorganisms.2021; 9(12): 2453. CrossRef - Optimizing Nitrogen Fixation and Recycling for Food Production in Regenerative Life Support Systems
Noah J. Langenfeld, Paul Kusuma, Tyler Wallentine, Craig S. Criddle, Lance C. Seefeldt, Bruce Bugbee
Frontiers in Astronomy and Space Sciences.2021;[Epub] CrossRef - Exogenous Application of 5-Aminolevulinic Acid Promotes Coloration and Improves the Quality of Tomato Fruit by Regulating Carotenoid Metabolism
Junwen Wang, Jing Zhang, Jing Li, Mohammed Mujitaba Dawuda, Basharat Ali, Yue Wu, Jihua Yu, Zhongqi Tang, Jian Lyu, Xuemei Xiao, Linli Hu, Jianming Xie
Frontiers in Plant Science.2021;[Epub] CrossRef - Nanoparticles in the soil–plant system: a review
Bilal Ahmed, Asfa Rizvi, Khursheed Ali, Jintae Lee, Almas Zaidi, Mohammad Saghir Khan, Javed Musarrat
Environmental Chemistry Letters.2021; 19(2): 1545. CrossRef - Endophytic bacterial strains modulated synthesis of lycopene and bioactive compounds in Solanum lycopersicum L. fruit
Monika Singh, Kapil Deo Pandey
Biocatalysis and Agricultural Biotechnology.2021; 35: 102088. CrossRef - Evaluation of Plant Growth Promoting Bacteria Strains on Growth, Yield and Quality of Industrial Tomato
Nikolaos Katsenios, Varvara Andreou, Panagiotis Sparangis, Nikola Djordjevic, Marianna Giannoglou, Sofia Chanioti, Panagiota Stergiou, Maria-Zacharoula Xanthou, Ioanna Kakabouki, Dimitrios Vlachakis, Snezana Djordjevic, George Katsaros, Aspasia Efthimiado
Microorganisms.2021; 9(10): 2099. CrossRef - Purple non‐sulphur bacteria and plant production: benefits for fertilization, stress resistance and the environment
Myrsini Sakarika, Janne Spanoghe, Yixing Sui, Eva Wambacq, Oliver Grunert, Geert Haesaert, Marc Spiller, Siegfried E. Vlaeminck
Microbial Biotechnology.2020; 13(5): 1336. CrossRef - Plant-Growth-Promoting Bacteria Mitigating Soil Salinity Stress in Plants
Stefan Shilev
Applied Sciences.2020; 10(20): 7326. CrossRef - The presence of a foreign microbial community promotes plant growth and reduces filtering of root fungi in the arctic-alpine plant Silene acaulis
Conor V. Meade, Clifton P. Bueno de Mesquita, Steven K. Schmidt, Katharine N. Suding
Plant Ecology & Diversity.2020; 13(5-6): 377. CrossRef - Microalgae and Phototrophic Purple Bacteria for Nutrient Recovery From Agri-Industrial Effluents: Influences on Plant Growth, Rhizosphere Bacteria, and Putative Carbon- and Nitrogen-Cycling Genes
Somayeh Zarezadeh, Navid R. Moheimani, Sasha N. Jenkins, Tim Hülsen, Hossein Riahi, Bede S. Mickan
Frontiers in Plant Science.2019;[Epub] CrossRef - Effects of foliar application of amino acid liquid fertilizers, with or without Bacillus amyloliquefaciens SQR9, on cowpea yield and leaf microbiota
Dongsheng Wang, Xuhui Deng, Bei Wang, Na Zhang, Chengzhi Zhu, Zixuan Jiao, Rong Li, Qirong Shen, Ricardo Aroca
PLOS ONE.2019; 14(9): e0222048. CrossRef - Interaction of plant growth promoting bacteria with tomato under abiotic stress: A review
Vipin Kumar Singh, Amit Kishore Singh, Prem Pratap Singh, Ajay Kumar
Agriculture, Ecosystems & Environment.2018; 267: 129. CrossRef - Effect of Rhizobacterium Rhodopseudomonas palustris Inoculation on Stevia rebaudiana Plant Growth and Soil Microbial Community
Jiangbing XU, Youzhi FENG, Yanling WANG, Xiangui LIN
Pedosphere.2018; 28(5): 793. CrossRef - Recent advances in production of 5-aminolevulinic acid using biological strategies
Zhen Kang, Wenwen Ding, Xu Gong, Qingtao Liu, Guocheng Du, Jian Chen
World Journal of Microbiology and Biotechnology.2017;[Epub] CrossRef - Effects of Inoculants (Chlorobium limicola and Rhodopseudomonas palustris) on Cucumber (Cucumis sativus L.) Seedlings in Stimulating their Nutrient Uptake and Growth
Shao Shuang, Wang Dongdong, Zhu Dan
Journal of Nutritional Therapeutics.2017; 6(3): 64. CrossRef - Antioxidant compounds and minerals in tomatoes by Trichoderma-enriched biofertilizer and their relationship with the soil environments
Md. Yeakub Khan, Md. Manjurul Haque, Abul Hossain Molla, Md. Mizanur Rahman, Mohammad Zahangeer Alam
Journal of Integrative Agriculture.2017; 16(3): 691. CrossRef - Photosynthetic bacterium Rhodopseudomonas palustris GJ‐22 induces systemic resistance against viruses
Pin Su, Xinqiu Tan, Chenggang Li, Deyong Zhang, Ju'e Cheng, Songbai Zhang, Xuguo Zhou, Qingpin Yan, Jing Peng, Zhuo Zhang, Yong Liu, Xiangyang Lu
Microbial Biotechnology.2017; 10(3): 612. CrossRef - The foliar spray of Rhodopseudomonas palustris grown under Stevia residue extract promotes plant growth via changing soil microbial community
Jiangbing Xu, Youzhi Feng, Yanling Wang, Xiaosan Luo, Jianwu Tang, Xiangui Lin
Journal of Soils and Sediments.2016; 16(3): 916. CrossRef - Efficacy of Rhodopseudomonas containing multi-microbe probiotic on growth performance, mortality and cecal microflora in broilers
B M Rubayet Bostami A, T Ahmed S, S Mun H, B Hong S, Yang Chul Ju
African Journal of Microbiology Research.2016; 10(26): 985. CrossRef - Colonization and plant growth-promotion of tomato by Burkholderia tropica
Pamela R. Bernabeu, Mariano Pistorio, Gonzalo Torres-Tejerizo, Paulina Estrada-De los Santos, María L. Galar, José L. Boiardi, María F. Luna
Scientia Horticulturae.2015; 191: 113. CrossRef - The effects of composite photosynthetic bacterial inoculant PS21 on the biochemical characteristics of wheat seedlings under tetrabromobisphenol A stress
Hong-Lian Ge, Fu-Li Zhang
Biotechnology & Biotechnological Equipment.2015; 29(2): 289. CrossRef - Root endophytes enhance stress‐tolerance of Cicuta virosa L. growing in a mining pond of eastern Japan
Satoshi Nagata, Keiko Yamaji, Nobuhiko Nomura, Hiroshi Ishimoto
Plant Species Biology.2015; 30(2): 116. CrossRef - Characterization of exopolymeric substances from selected Rhodopseudomonas palustris strains and their ability to adsorb sodium ions
Tomorn Nunkaew, Duangporn Kantachote, Teruhiko Nitoda, Hiroshi Kanzaki, Raymond J. Ritchie
Carbohydrate Polymers.2015; 115: 334. CrossRef - Endophytic bacteria in plant tissue culture: differences between easy- and difficult-to-propagate Prunus avium genotypes
M. Quambusch, A. M. Pirttila, M. V. Tejesvi, T. Winkelmann, M. Bartsch
Tree Physiology.2014; 34(5): 524. CrossRef - Characteristics of purple nonsulfur bacteria grown under Stevia
residue extractions
J. Xu, Y. Feng, Y. Wang, X. Lin
Letters in Applied Microbiology.2013; 57(5): 420. CrossRef - Purple Phototrophic Bacterium Enhances Stevioside Yield by Stevia rebaudiana Bertoni via Foliar Spray and Rhizosphere Irrigation
Jing Wu, Yiming Wang, Xiangui Lin, Gustavo Bonaventure
PLoS ONE.2013; 8(6): e67644. CrossRef - Trichoderma-Enriched Biofertilizer Enhances Production and Nutritional Quality of Tomato (Lycopersicon esculentum Mill.) and Minimizes NPK Fertilizer Use
Abul Hossain Molla, Md. Manjurul Haque, Md. Amdadul Haque, G. N. M. Ilias
Agricultural Research.2012; 1(3): 265. CrossRef - Exopolysaccharide-Producing Plant Growth-Promoting Rhizobacteria Under Salinity Condition
S.K. UPADHYAY, J.S. SINGH, D.P. SINGH
Pedosphere.2011; 21(2): 214. CrossRef - Elevated Ground-Level O3 Changes the Diversity of Anoxygenic Purple Phototrophic Bacteria in Paddy Field
Youzhi Feng, Xiangui Lin, Yongchang Yu, Jianguo Zhu
Microbial Ecology.2011; 62(4): 789. CrossRef - Field Evidence for the Potential of Rhodobacter capsulatus as Biofertilizer for Flooded Rice
Hosny Gamal-Eldin, Khaled Elbanna
Current Microbiology.2011; 62(2): 391. CrossRef