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Jan T, Arif M, Anwar S, Muhammad D. Biochar-microbes-FYM Nexus for Maize Productivity, Macro-nutrients’ Availability and Soil Organic Carbon Under Semi-arid Climate. GESUNDE PFLANZEN 2023. [DOI: 10.1007/s10343-023-00872-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 02/27/2023] [Indexed: 09/01/2023]
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Kim SY, Park SY, Jin JE, Hong KS, Kim DJ, Kim YK, Shin HC, Cho SK, Kang DH. Comparing the VITEK 2 ANC card, species-specific PCR, and MALDI-TOF mass spectrometry methods for identification of lactic acid bacteria. J Food Sci 2022; 87:5099-5106. [PMID: 36201398 DOI: 10.1111/1750-3841.16343] [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: 05/30/2022] [Revised: 08/15/2022] [Accepted: 09/06/2022] [Indexed: 11/30/2022]
Abstract
Lactic acid bacteria (LAB) are not only the most common probiotics in the food and feed industry but are also used as plant probiotics. Therefore, precise identification of LAB at the species level is required. In this study, we compared three different methods, the VITEK 2 ANC card, species-specific PCR, and MALDI-TOF MS, to identify six LAB (Lacticaseibacillus casei, Lacticaseibacillus paracasei, Lacticaseibacillus rhamnosus, Lactiplantibacillus plantarum, Lentilactobacillus buchneri, and Limosilactobacillus fermentum) species previously assigned to the genus Lactobacillus that are used as biofertilizers. Twenty-two strains of six LAB species were analyzed using the VITEK 2 ANC card, species-specific PCR, and MALDI-TOF MS, and identification rates at the species level were 45.5%, 95.5%, and 95.5%, respectively. There were cross-reactions between L. casei and L. parpacasei, and one strain of L. casei could not be identified by these three methods. PCR assays and MALDI-TOF MS were applicable for LAB identification. PRACTICAL APPLICATION: LAB are the most common probiotics in the food and feed industry, so precise identification and classification of LAB at the species level are required. This study aimed at comparing three different methods for the effective identification of six LAB species: biochemical testing using VITEK 2 ANC card, species-specific PCR, and MALDI-TOF MS analysis.
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Affiliation(s)
- Sung-Youn Kim
- Experiment Research Institute, National Agricultural Products Quality Management Service, Gimcheon, Republic of Korea.,Department of Food and Animal Biotechnology, Department of Agricultural Biotechnology, Center for Food and Bioconvergence, Research Institute for Agricultural and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Sol Yi Park
- Experiment Research Institute, National Agricultural Products Quality Management Service, Gimcheon, Republic of Korea
| | - Ji-Eun Jin
- Experiment Research Institute, National Agricultural Products Quality Management Service, Gimcheon, Republic of Korea
| | - Kyong-Suk Hong
- Experiment Research Institute, National Agricultural Products Quality Management Service, Gimcheon, Republic of Korea
| | - Dae-Jung Kim
- Experiment Research Institute, National Agricultural Products Quality Management Service, Gimcheon, Republic of Korea
| | - Yong-Kyoung Kim
- Experiment Research Institute, National Agricultural Products Quality Management Service, Gimcheon, Republic of Korea
| | - Hee-Chang Shin
- Experiment Research Institute, National Agricultural Products Quality Management Service, Gimcheon, Republic of Korea
| | - Soon-Kil Cho
- Experiment Research Institute, National Agricultural Products Quality Management Service, Gimcheon, Republic of Korea
| | - Dong-Hyun Kang
- Department of Food and Animal Biotechnology, Department of Agricultural Biotechnology, Center for Food and Bioconvergence, Research Institute for Agricultural and Life Sciences, Seoul National University, Seoul, Republic of Korea
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Liu S, Khan MH, Yuan Z, Hussain S, Cao H, Liu Y. Response of soil microbiome structure and its network profiles to four soil amendments in monocropping strawberry greenhouse. PLoS One 2021; 16:e0245180. [PMID: 34587178 PMCID: PMC8480769 DOI: 10.1371/journal.pone.0245180] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 09/01/2021] [Indexed: 01/03/2023] Open
Abstract
With the constant surge of strawberry cultivation and human demand, widespread concern has been expressed about the severe soil and plant health problems caused by continuous strawberry cropping, particularly monocropping in greenhouses. Effective microorganisms (EM) and Bacillus subtilis (BS) have been extensively commercialized as biological control agents (BCAs) to promote plant growth and yield enhancement. However, their effects on soil microbes are obscure. To regulate the microbial community in continuous cropping strawberry soils, we developed four soil amendments based on these two BCAs by adding low and high contents of compost. The amplicon sequencing of bacterial and fungal ribosomal markers was applied to study the response of the soil microbiome structure. We noticed a sharp increase in bacterial diversity after adding EM-treated high compost and BS-treated low compost, while there was no significant change in fungal diversity among treatments. Through taxonomic classification and FUNGuild analysis, we found that the application of soil amendments resulted in a significant decline in the relative abundance of fungal plant pathogens (Rhizopus, Penicillium and Fusarium) in the soils; accordingly, the metabolic functions of a range of detrimental fungi were inhibited. Correlation analysis indicated that soil microbial community was indirectly driven by soil physicochemical properties. Co-occurrence networks revealed that soil amendments contributed to the connectivity of bacterial network, and EM-treated with high compost was the most complex and balanced. Collectively, EM-treated high compost and BS-treated low compost can well regulate the microbial community structure and thus maintain soil health.
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Affiliation(s)
- Senlin Liu
- College of Life Sciences/Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affair, Nanjing Agricultural University, Nanjing, P. R. China
| | - Muzammil Hassan Khan
- College of Life Sciences/Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affair, Nanjing Agricultural University, Nanjing, P. R. China
| | - Zhongyuan Yuan
- College of Life Sciences/Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affair, Nanjing Agricultural University, Nanjing, P. R. China
| | - Sarfraz Hussain
- College of Life Sciences/Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affair, Nanjing Agricultural University, Nanjing, P. R. China
| | - Hui Cao
- College of Life Sciences/Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affair, Nanjing Agricultural University, Nanjing, P. R. China
- * E-mail: (HC); (YL)
| | - Yabo Liu
- Zhenjiang Institute of Agricultural Sciences, Jurong, China
- * E-mail: (HC); (YL)
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Devika OS, Singh S, Sarkar D, Barnwal P, Suman J, Rakshit A. Seed Priming: A Potential Supplement in Integrated Resource Management Under Fragile Intensive Ecosystems. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2021. [DOI: 10.3389/fsufs.2021.654001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
A majority of agricultural activities are conducted under fragile lands or set-up. The growth and development of crops are negatively affected due to several biotic and abiotic stresses. In the current situation, research efforts have been diverted toward the short-term approaches that can improve crop performance under changing environments. Seed treatment or priming technology is in a transition phase of its popularity among resource-poor farmers. Suitable policy intervention can boost low-cost techniques to implement them on a larger scale in developing countries and to harness the maximum benefits of sustainable food production systems. Primed seeds have high vigor and germination rate that help in seedling growth and successful crop stand establishment under stress conditions. This review is attempted to assess different seed priming techniques in terms of resource use efficiency, crop productivity, cost–benefit balance, and environmental impacts. Moreover, a comprehensive study of the mechanisms (physiological and biochemical) of seed priming is also elaborated. A detailed examination of the applications of priming technology under diverse agroecosystems can improve our understanding of the adaptive management of natural resources.
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Pan Q, Shikano I, Hoover K, Liu TX, Felton GW. Pathogen-Mediated Tritrophic Interactions: Baculovirus-Challenged Caterpillars Induce Higher Plant Defenses than Healthy Caterpillars. J Chem Ecol 2019; 45:515-524. [PMID: 31127421 DOI: 10.1007/s11829-018-9634-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/06/2019] [Accepted: 05/13/2019] [Indexed: 05/25/2023]
Abstract
Although the tritrophic interactions of plants, insect herbivores and their natural enemies have been intensely studied for several decades, the roles of entomopathogens in their indirect modulation of plant-insect relationships is still unclear. Here, we employed a sublethal dose of a baculovirus with a relatively broad host range (AcMNPV) to explore if feeding by baculovirus-challenged Helicoverpa zea caterpillars induces direct defenses in the tomato plant. We examined induction of plant defenses following feeding by H. zea, including tomato plants fed on by healthy caterpillars, AcMNPV-challenged caterpillars, or undamaged controls, and subsequently compared the transcript levels of defense related proteins (i.e., trypsin proteinase inhibitors, peroxidase and polyphenol oxidase) and other defense genes (i.e., proteinase inhibitor II and cysteine proteinase inhibitor) from these plants, in addition to comparing caterpillar relative growth rates. As a result, AcMNPV-challenged caterpillars induced the highest plant anti-herbivore defenses. We examined several elicitors and effectors in the secretions of these caterpillars (i.e., glucose oxidase, phospholipase C, and ATPase hydrolysis), which surprisingly did not differ between treatments. Hence, we suggest that the greater induction of plant defenses by the virus-challenged caterpillars may be due to differences in the amount of these secretions deposited during feeding or to some other unknown factor(s).
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Affiliation(s)
- Qinjian Pan
- State Key Laboratory of Crop Stress Biology for Arid Areas, and Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China.
- Department of Entomology and Center for Chemical Ecology, Pennsylvania State University, University Park, PA, 16802, USA.
| | - Ikkei Shikano
- Department of Entomology and Center for Chemical Ecology, Pennsylvania State University, University Park, PA, 16802, USA
| | - Kelli Hoover
- Department of Entomology and Center for Chemical Ecology, Pennsylvania State University, University Park, PA, 16802, USA
| | - Tong-Xian Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, and Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China.
| | - Gary W Felton
- Department of Entomology and Center for Chemical Ecology, Pennsylvania State University, University Park, PA, 16802, USA
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Ren H, Hu J, Hu Y, Yang G, Zhang Y. Divergence of compost extract and bio-organic manure effects on lucerne plant and soil. PeerJ 2017; 5:e3775. [PMID: 28894647 PMCID: PMC5591637 DOI: 10.7717/peerj.3775] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/16/2017] [Indexed: 11/22/2022] Open
Abstract
Aim Application of organic materials into agricultural systems enhances plant growth and yields, and improves soil fertility and structure. This study aimed to examine the effects of “compost extract (CE)”, a soil conditioner, and bio-organic manure (BOM) on the growth of lucerne (Medicago sativa), and compare the efficiency between BOM (including numbers of microorganisms) and CE (including no added microorganisms). Method A greenhouse experiment was conducted with four soil amendment treatments (control, BOM, CE and CEBOM), and was arranged in a completely randomized design with 10 replicates for each treatment. Plant biomass, nutritive value and rhizobia efficacy as well as soil characteristics were monitored. Result CE rather than BOM application showed a positive effect on plant growth and soil properties when compared with the control. Lucerne nodulation responded equally to CE addition and rhizobium inoculation. CE alone and in combination with BOM significantly increased plant growth and soil microbial activities and improved soil structure. The synergistic effects of CE and BOM indicate that applying CE and BOM together could increase their efficiency, leading to higher economic returns and improved soil health. However, CE alone is more effective for legume growth since nodulation was suppressed by nitrogen input from BOM. CE had a higher efficiency than BOM for enriching soil indigenous microorganisms instead of adding microorganisms and favouring plant nodulation.
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Affiliation(s)
- Haiyan Ren
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Jian Hu
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Yifei Hu
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Gaowen Yang
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Yingjun Zhang
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China.,Department of Grassland Science, China Agricultural University, Beijing, China
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Wu J, Wang Y, Lin X. Purple phototrophic bacterium enhances stevioside yield by Stevia rebaudiana Bertoni via foliar spray and rhizosphere irrigation. PLoS One 2013; 8:e67644. [PMID: 23825677 PMCID: PMC3692463 DOI: 10.1371/journal.pone.0067644] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 05/21/2013] [Indexed: 11/19/2022] Open
Abstract
This study was conducted to compare the effects of foliar spray and rhizosphere irrigation with purple phototrophic bacteria (PPB) on growth and stevioside (ST) yield of Stevia. rebaudiana. The S. rebaudiana plants were treated by foliar spray, rhizosphere irrigation, and spray plus irrigation with PPB for 10 days, respectively. All treatments enhanced growth of S. rebaudiana, and the foliar method was more efficient than irrigation. Spraying combined with irrigation increased the ST yield plant (-1) by 69.2% as compared to the control. The soil dehydrogenase activity, S. rebaudiana shoot biomass, chlorophyll content in new leaves, and soluble sugar in old leaves were affected significantly by S+I treatment, too. The PPB probably works in the rhizosphere by activating the metabolic activity of soil bacteria, and on leaves by excreting phytohormones or enhancing the activity of phyllosphere microorganisms.
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Affiliation(s)
- Jing Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People’s Republic of China
- Joint Open Laboratory of Soil and the Environment, Hong Kong Baptist University & Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Yiming Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People’s Republic of China
- Joint Open Laboratory of Soil and the Environment, Hong Kong Baptist University & Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People’s Republic of China
| | - Xiangui Lin
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People’s Republic of China
- Joint Open Laboratory of Soil and the Environment, Hong Kong Baptist University & Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People’s Republic of China
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