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Barreiro C, Albillos SM, García-Estrada C. Penicillium chrysogenum: Beyond the penicillin. ADVANCES IN APPLIED MICROBIOLOGY 2024; 127:143-221. [PMID: 38763527 DOI: 10.1016/bs.aambs.2024.02.006] [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: 05/21/2024]
Abstract
Almost one century after the Sir Alexander Fleming's fortuitous discovery of penicillin and the identification of the fungal producer as Penicillium notatum, later Penicillium chrysogenum (currently reidentified as Penicillium rubens), the molecular mechanisms behind the massive production of penicillin titers by industrial strains could be considered almost fully characterized. However, this filamentous fungus is not only circumscribed to penicillin, and instead, it seems to be full of surprises, thereby producing important metabolites and providing expanded biotechnological applications. This review, in addition to summarizing the classical role of P. chrysogenum as penicillin producer, highlights its ability to generate an array of additional bioactive secondary metabolites and enzymes, together with the use of this microorganism in relevant biotechnological processes, such as bioremediation, biocontrol, production of bioactive nanoparticles and compounds with pharmaceutical interest, revalorization of agricultural and food-derived wastes or the enhancement of food industrial processes and the agricultural production.
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Affiliation(s)
- Carlos Barreiro
- Área de Bioquímica y Biología Molecular, Departamento de Biología Molecular, Facultad de Veterinaria, Universidad de León, León, Spain; Instituto de Biología Molecular, Genómica y Proteómica (INBIOMIC), Universidad de León, León, Spain.
| | - Silvia M Albillos
- Área de Bioquímica y Biología Molecular, Departamento de Biotecnología y Ciencia de los Alimentos, Facultad de Ciencias, Universidad de Burgos, Burgos, Spain
| | - Carlos García-Estrada
- Departamento de Ciencias Biomédicas, Facultad de Veterinaria, Universidad de León, León, Spain; Instituto de Biomedicina (IBIOMED), Universidad de León, León, Spain
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Wu X, Fan Y, Wang R, Zhao Q, Ali Q, Wu H, Gu Q, Borriss R, Xie Y, Gao X. Bacillus halotolerans KKD1 induces physiological, metabolic and molecular reprogramming in wheat under saline condition. FRONTIERS IN PLANT SCIENCE 2022; 13:978066. [PMID: 36035675 PMCID: PMC9404337 DOI: 10.3389/fpls.2022.978066] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
Salt stress decreases plant growth and is a major threat to crop yields worldwide. The present study aimed to alleviate salt stress in plants by inoculation with halophilic plant growth-promoting rhizobacteria (PGPR) isolated from an extreme environment in the Qinghai-Tibetan Plateau. Wheat plants inoculated with Bacillus halotolerans KKD1 showed increased seedling morphological parameters and physiological indexes. The expression of wheat genes directly involved in plant growth was upregulated in the presence of KKD1, as shown by real-time quantitative PCR (RT-qPCR) analysis. The metabolism of phytohormones, such as 6-benzylaminopurine and gibberellic acid were also enhanced. Mining of the KKD1 genome corroborated its potential plant growth promotion (PGP) and biocontrol properties. Moreover, KKD1 was able to support plant growth under salt stress by inducing a stress response in wheat by modulating phytohormone levels, regulating lipid peroxidation, accumulating betaine, and excluding Na+. In addition, KKD1 positively affected the soil nitrogen content, soil phosphorus content and soil pH. Our findings indicated that KKD1 is a promising candidate for encouraging wheat plant growth under saline conditions.
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Affiliation(s)
- Xiaohui 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, China
- State Key Laboratory of Plateau Ecology and Agriculture, Department of Grassland Science, College of Agricultural and Husbandry, Qinghai University, Xining, China
| | - Yaning Fan
- 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, China
| | - Ruoyi Wang
- 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, China
| | - Qian Zhao
- 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, China
| | - 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, China
| | - 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, China
| | - Qin Gu
- 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, China
| | - Rainer Borriss
- Institut für Biologie, Humboldt Universität, Berlin, Germany
- Nord Reet UG, Greifswald, Germany
| | - Yongli Xie
- State Key Laboratory of Plateau Ecology and Agriculture, Department of Grassland Science, College of Agricultural and Husbandry, Qinghai University, Xining, China
| | - 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, China
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Zhang R, Ouyang J, Xu X, Li J, Rehman M, Deng G, Shu J, Zhao D, Chen S, Sayyed RZ, Fahad S, Chen Y. Nematicidal Activity of Burkholderia arboris J211 Against Meloidogyne incognita on Tobacco. Front Microbiol 2022; 13:915546. [PMID: 35756018 PMCID: PMC9226767 DOI: 10.3389/fmicb.2022.915546] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/11/2022] [Indexed: 11/16/2022] Open
Abstract
Root-knot nematode (Meloidogyne incognita) is the most widespread nematode affecting Solanaceae crops. Due to the lack of effective measures to control this nematode, its management can be achieved, using biocontrol agents. This study investigated in vitro efficacy of the antagonistic bacterial strain J211 isolated from tobacco rhizosphere soil against M. incognita, and further assessed its role in controlling nematodes, both in pot and field trials. Phylogenetic analysis of the 16S rRNA gene sequence of strain J211 assigned to Burkholderia arboris. Culture filtrates B. arboris J211 exhibited anematicidal activity against the second-stage juveniles (J2s) of M. incognita, with a 96.6% mortality after 24 h exposure. Inoculation of J211 in tobacco roots significantly reduced the root galling caused by M. incognita, both in pot and field trials. Meanwhile, plant growth-promoting (PGP) traits results showed that J211 had outstanding IAA-producing activity, and the IAA production reached 66.60 mg L−1. In the field study, B. arboris J211 also promoted tobacco growth and increase flue-cured tobacco yield by 8.7–24.3%. Overall, B. arboris J211 as a high-yielding IAA nematicidal strain effectively controlled M. incognita and improved tobacco yield making it a promising alternative bionematocide.
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Affiliation(s)
- Renjun Zhang
- Biocontrol Engineering Research Center of Crop Disease and Pest, Yunnan University, Kunming, China.,Yunnan Engineering Research Center of Microbial Agents, Yunnan University, Kunming, China.,School of Life Science, Yunnan University, Kunming, China
| | - Jin Ouyang
- Kunming Branch of Yunnan Tobacco Company, Kunming, China
| | - Xingyang Xu
- Kunming Branch of Yunnan Tobacco Company, Kunming, China
| | - Jie Li
- Kunming Branch of Yunnan Tobacco Company, Kunming, China
| | | | - Gang Deng
- School of Agriculture, Yunnan University, Kunming, China
| | - Jie Shu
- School of Life Science, Yunnan University, Kunming, China
| | - Dake Zhao
- Biocontrol Engineering Research Center of Crop Disease and Pest, Yunnan University, Kunming, China.,Yunnan Engineering Research Center of Microbial Agents, Yunnan University, Kunming, China.,School of Ecology and Environmental Science, Yunnan University, Kunming, China
| | - Suiyun Chen
- Biocontrol Engineering Research Center of Crop Disease and Pest, Yunnan University, Kunming, China.,Yunnan Engineering Research Center of Microbial Agents, Yunnan University, Kunming, China.,School of Ecology and Environmental Science, Yunnan University, Kunming, China
| | - R Z Sayyed
- Department of Microbiology, PSGVP Mandal's S I Patil Arts, G B Patel Science and STKVS Commerce College, Shahada, India
| | - Shah Fahad
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Haikou, China.,Department of Agronomy, The University of Haripur, Haripur, Pakistan
| | - Yaqiong Chen
- Kunming Branch of Yunnan Tobacco Company, Kunming, China
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Kihika-Opanda R, Tchouassi DP, Ng'ang'a MM, Beck JJ, Torto B. Chemo-Ecological Insights into the Use of the Non-Host Plant Vegetable Black-Jack to Protect Two Susceptible Solanaceous Crops from Root-Knot Nematode Parasitism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:6658-6669. [PMID: 35613461 DOI: 10.1021/acs.jafc.2c01748] [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: 06/15/2023]
Abstract
Plant parasitic nematodes (PPNs) develop through three major stages in their life cycle: hatching, infection, and reproduction. Interruption of any of these stages can affect their growth and survival. We used screenhouse pot experiments, laboratory in vitro hatching and mortality assays, and chemical analysis to test the hypothesis that the non-host Asteraceae plant vegetable black-jack (Bidens pilosa) suppresses infection of the PPN Meloidogyne incognita in two susceptible Solanaceae host plants, tomato (Solanum lycopersicum) and black nightshade (S. nigrum). In intercrop and drip pot experiments, B. pilosa significantly reduced the number of galls and egg masses in root-knot nematode (RKN)-susceptible host plants by 3-9-fold compared to controls. Chemical analysis of the most bioactive fraction from the root exudates of B. pilosa identified several classes of compounds, including vitamins, a dicarboxylic acid, amino acids, aromatic acids, and a flavonoid. In in vitro assays, the vitamins and aromatic acids elicited the highest inhibition in egg hatching, whereas ascorbic acid (vitamin) and 2-hydroxybenzoic acid (aromatic acid) elicited strong nematicidal activity against M. incognita, with LC50/48 h values of 12 and 300 ng/μL, respectively. Our results provide insights into how certain non-host plants can be used as companion crops to disrupt PPN infestation.
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Affiliation(s)
- Ruth Kihika-Opanda
- Behavioral and Chemical Ecology Unit, International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100 Nairobi, Kenya
- Department of Chemistry, Kenyatta University, P.O. Box 43844-00100 Nairobi, Kenya
| | - David P Tchouassi
- Behavioral and Chemical Ecology Unit, International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100 Nairobi, Kenya
| | - Margaret M Ng'ang'a
- Department of Chemistry, Kenyatta University, P.O. Box 43844-00100 Nairobi, Kenya
| | - John J Beck
- Chemistry Research Unit, Center for Medical, Agricultural, and Veterinary Entomology, Agricultural Research Service, U.S. Department of Agriculture, 1700 SW 23rd Drive, Gainesville, Florida 32608, United States
| | - Baldwyn Torto
- Behavioral and Chemical Ecology Unit, International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100 Nairobi, Kenya
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El-Ashry RM, El-Saadony MT, El-Sobki AE, El-Tahan AM, Al-Otaibi S, El-Shehawi AM, Saad AM, Elshaer N. Biological silicon nanoparticles maximize the efficiency of nematicides against biotic stress induced by Meloidogyne incognita in eggplant. Saudi J Biol Sci 2022; 29:920-932. [PMID: 35197760 PMCID: PMC8848026 DOI: 10.1016/j.sjbs.2021.10.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 09/28/2021] [Accepted: 10/04/2021] [Indexed: 12/11/2022] Open
Abstract
Nemours effective management tactics were used to reduce world crop losses caused by plant-parasitic nematodes. Nowadays the metallic nanoparticles are easily developed with desired size and shape. Nanoparticles (NPs) technology becomes a recognized need for researchers. Ecofriendly and biosafe SiNPs are developed from microorganisms. Recently, silicon nanoparticles (SiNPs) have gained novel pesticide properties against numerous agricultural pests. This study assessed the biosynthesis of SiNPs from Fusarium oxysporum SM5. The obtained SiNPs were spherical with a size of 45 nm and a negative charge of −25.65. The nematocidal effect of SiNPs against egg hatching and second-stage juveniles (J2) of root-knot nematode (RKN) (Meloidogyne incognita) was evaluated on eggplant,Solanum melongena L. plants. In vitro, all tested SiNPs concentrations significantly (p ≤ 0.05) inhibited the percentage of egg hatching at a different time of exposure than control. Meanwhile, after 72 h, the percent mortality of J2 ranged from 87.00 % to 98.50 %, with SiNPs (100 and 200 ppm). The combination between SiNPs and the half-recommended doses (0.5 RD) of commercial nematicides namely, fenamiphos (Femax 40 % EC)R, nemathorin (Fosthiazate 10 % WG) R, and fosthiazate (krenkel 75 % EC) R confirmed the increase of egg hatching inhibition and J2 mortality after exposure to SiNPs (100 ppm) mixed with 0.5 RD of synthetic nematicides. The findings suggest that the combination between SiNPs, and 0.5 RD of nematicides reduced nematode reproduction, gall formation, egg masses on roots and final population of J2 in the soil. Therefore, improving the plant growth parameters by reducing the M. incognita population.
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Affiliation(s)
- Ramadan M. El-Ashry
- Department of Plant Protection, Faculty of Agriculture, Zagazig University, 44511 Zagazig, Egypt
| | - Mohamed T. El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, 44511 Zagazig, Egypt
- Corresponding authors.
| | - Ahmed E.A. El-Sobki
- Department of Plant Protection, Faculty of Agriculture, Zagazig University, 44511 Zagazig, Egypt
| | - Amira M. El-Tahan
- Plant Production Department, Arid Lands Cultivation Research Institute, The City of Scientific Research and Technological Applications, SRTA-City. Borg El Arab, Alexandria, Egypt
| | - Saad Al-Otaibi
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ahmed M. El-Shehawi
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ahmed M. Saad
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Nashwa Elshaer
- Department of Plant Protection, Faculty of Agriculture, Zagazig University, 44511 Zagazig, Egypt
- Corresponding authors.
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Huilgol SN, Nandeesha KL, Banu H. Fungal Biocontrol Agents: An Eco-friendly Option for the Management of Plant Diseases to Attain Sustainable Agriculture in India. Fungal Biol 2022. [DOI: 10.1007/978-981-16-8877-5_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Behera SS, Ray RC. Bioprospecting of cowdung microflora for sustainable agricultural, biotechnological and environmental applications. CURRENT RESEARCH IN MICROBIAL SCIENCES 2021; 2:100018. [PMID: 34841310 PMCID: PMC8610318 DOI: 10.1016/j.crmicr.2020.100018] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 11/28/2022] Open
Abstract
The review aims at highlighting the manifold applications of cow dung (CD) and CD microflora covering agricultural, biotechnological and environmental applications. The update research on CD microflora and CD in agricultural domain such as biocontrol, growth promotion, organic fertilizer, sulfur oxidation, phosphorus solubilization, zinc mobilization and underlying mechanisms involved in these processes are discussed. The significance of CD applications in tropical agriculture in context to climate change is briefly emphasized. The advances on genomics and proteomics of CD microflora for enhanced yield of enzymes, organic acids, alternative fuels (biomethane and biohydrogen) and other biocommodities, and environmental applications in context to biosorption of heavy metals, biodegradation of xenobiotics, etc. have been given critical attention.
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Key Words
- AD, anaerobic digesters
- AP, apple pomace
- ARB, antibiotic-resistant bacteria
- ARGs, antibiotic-resistant genes
- BOD, biochemical oxygen demand
- Biocontrol
- Biodegradation
- Biogas
- Bioprocess
- Bioremediation
- Biosorption
- C/N, carbon nitrogen ratio
- CD, cow dung
- CDP, cow dung powder
- CEC, cation exchange capacity
- Cow dung
- DO, dissolved oxygen
- EC, electric conductivity
- IAA, indole-3-acetic acids
- NPK, nitrogen, phosphorus, and potassium
- NPP, net primary productivity
- OM, organic matter
- PGPR, plant growth promoting rhizobateria
- PSM, P-solubilizing microorganisms
- Panchagavya
- SGR, specific growth rate
- SSF, solid sate fermentation
- SmF, sub-merged fermentation
- TOC, total organic carbon
- TPPB, two phase partitioning bioreactor
- TS, total solids
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Affiliation(s)
- Sudhanshu S Behera
- Department of Biotechnology, National Institute of Technology, GE Road, Raipur 492010, India.,Department of Fisheries and Animal Resource Development, Government of Odisha, India
| | - Ramesh C Ray
- Centre for Food Biology and Environment Studies, Bhubaneswar 751019, India
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Soil microbiome manipulation triggers direct and possible indirect suppression against Ralstonia solanacearum and Fusarium oxysporum. NPJ Biofilms Microbiomes 2021; 7:33. [PMID: 33846334 PMCID: PMC8041757 DOI: 10.1038/s41522-021-00204-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 03/08/2021] [Indexed: 02/01/2023] Open
Abstract
Soil microbiome manipulation can potentially reduce the use of pesticides by improving the ability of soils to resist or recover from pathogen infestation, thus generating natural suppressiveness. We simulated disturbance through soil fumigation and investigated how the subsequent application of bio-organic and organic amendments reshapes the taxonomic and functional potential of the soil microbiome to suppress the pathogens Ralstonia solanacearum and Fusarium oxysporum in tomato monocultures. The use of organic amendment alone generated smaller shifts in bacterial and fungal community composition and no suppressiveness. Fumigation directly decreased F. oxysporum and induced drastic changes in the soil microbiome. This was further converted from a disease conducive to a suppressive soil microbiome due to the application of organic amendment, which affected the way the bacterial and fungal communities were reassembled. These direct and possibly indirect effects resulted in a highly efficient disease control rate, providing a promising strategy for the control of the diseases caused by multiple pathogens.
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Portraying Fungal Mechanisms in Stress Tolerance: Perspective for Sustainable Agriculture. Fungal Biol 2021. [DOI: 10.1007/978-3-030-60659-6_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Paecilomyces and Its Importance in the Biological Control of Agricultural Pests and Diseases. PLANTS 2020; 9:plants9121746. [PMID: 33321854 PMCID: PMC7763231 DOI: 10.3390/plants9121746] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 11/16/2022]
Abstract
Incorporating beneficial microorganisms in crop production is the most promising strategy for maintaining agricultural productivity and reducing the use of inorganic fertilizers, herbicides, and pesticides. Numerous microorganisms have been described in the literature as biological control agents for pests and diseases, although some have not yet been commercialised due to their lack of viability or efficacy in different crops. Paecilomyces is a cosmopolitan fungus that is mainly known for its nematophagous capacity, but it has also been reported as an insect parasite and biological control agent of several fungi and phytopathogenic bacteria through different mechanisms of action. In addition, species of this genus have recently been described as biostimulants of plant growth and crop yield. This review includes all the information on the genus Paecilomyces as a biological control agent for pests and diseases. Its growth rate and high spore production rate in numerous substrates ensures the production of viable, affordable, and efficient commercial formulations for agricultural use.
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Pratt C, Tate K. Mitigating Methane: Emerging Technologies To Combat Climate Change's Second Leading Contributor. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:6084-6097. [PMID: 29719145 DOI: 10.1021/acs.est.7b04711] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Methane (CH4) is the second greatest contributor to anthropogenic climate change. Emissions have tripled since preindustrial times and continue to rise rapidly, given the fact that the key sources of food production, energy generation and waste management, are inexorably tied to population growth. Until recently, the pursuit of CH4 mitigation approaches has tended to align with opportunities for easy energy recovery through gas capture and flaring. Consequently, effective abatement has been largely restricted to confined high-concentration sources such as landfills and anaerobic digesters, which do not represent a major share of CH4's emission profile. However, in more recent years we have witnessed a quantum leap in the sophistication, diversity and affordability of CH4 mitigation technologies on the back of rapid advances in molecular analytical techniques, developments in material sciences and increasingly efficient engineering processes. Here, we present some of the latest concepts, designs and applications in CH4 mitigation, identifying a number of abatement synergies across multiple industries and sectors. We also propose novel ways to manipulate cutting-edge technology approaches for even more effective mitigation potential. The goal of this review is to stimulate the ongoing quest for and uptake of practicable CH4 mitigation options; supplementing established and proven approaches with immature yet potentially high-impact technologies. There has arguably never been, and if we do not act soon nor will there be, a better opportunity to combat climate change's second most significant greenhouse gas.
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Affiliation(s)
- Chris Pratt
- School of Environment and Science/Australian Rivers Institute , Griffith University , 170 Kessels Road , Nathan , Queensland 4111 , Australia
| | - Kevin Tate
- Landcare Research-Manaaki Whenua , Massey University , Riddet Road , Palmerston North 4442 , New Zealand
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Isolation of Ovicidal Fungi from Fecal Samples of Captive Animals Maintained in a Zoological Park. J Fungi (Basel) 2017; 3:jof3020029. [PMID: 29371547 PMCID: PMC5715915 DOI: 10.3390/jof3020029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 05/30/2017] [Accepted: 05/31/2017] [Indexed: 11/29/2022] Open
Abstract
There are certain saprophytic fungi in the soil able to develop an antagonistic effect against eggs of parasites. Some of these fungal species are ingested by animals during grazing, and survive in their feces after passing through the digestive tract. To identify and isolate ovicidal fungi in the feces of wild captive animals, a total of 60 fecal samples were taken from different wild animals kept captive in the Marcelle Natureza Zoological Park (Lugo, Spain). After the serial culture of the feces onto Petri dishes with different media, their parasicitide activity was assayed against eggs of trematodes (Calicophoron daubneyi) and ascarids (Parascaris equorum). Seven fungal genera were identified in the feces. Isolates from Fusarium, Lecanicillium, Mucor, Trichoderma, and Verticillium showed an ovicidal effect classified as type 3, because of their ability to adhere to the eggshell, penetrate, and damage permanently the inner embryo. Penicillium and Gliocladium developed a type 1 effect (hyphae attach to the eggshell but morphological damage was not provoked). These results provide very interesting and useful information about fungi susceptible for being used in biological control procedures against parasites.
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Elhady A, Giné A, Topalovic O, Jacquiod S, Sørensen SJ, Sorribas FJ, Heuer H. Microbiomes associated with infective stages of root-knot and lesion nematodes in soil. PLoS One 2017; 12:e0177145. [PMID: 28472099 PMCID: PMC5417685 DOI: 10.1371/journal.pone.0177145] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 04/21/2017] [Indexed: 02/01/2023] Open
Abstract
Endoparasitic root-knot (Meloidogyne spp.) and lesion (Pratylenchus spp.) nematodes cause considerable damage in agriculture. Before they invade roots to complete their life cycle, soil microbes can attach to their cuticle or surface coat and antagonize the nematode directly or by induction of host plant defenses. We investigated whether the nematode-associated microbiome in soil differs between infective stages of Meloidogyne incognita and Pratylenchus penetrans, and whether it is affected by variation in the composition of microbial communities among soils. Nematodes were incubated in suspensions of five organically and two integrated horticultural production soils, recovered by sieving and analyzed for attached bacteria and fungi after washing off loosely adhering microbes. Significant effects of the soil type and nematode species on nematode-associated fungi and bacteria were revealed as analyzed by community profiling using denaturing gradient gel electrophoresis. Attached microbes represented a small specific subset of the soil microbiome. Two organic soils had very similar bacterial and fungal community profiles, but one of them was strongly suppressive towards root-knot nematodes. They were selected for deep amplicon sequencing of bacterial 16S rRNA genes and fungal ITS. Significant differences among the microbiomes associated with the two species in both soils suggested specific surface epitopes. Among the 28 detected bacterial classes, Betaproteobacteria, Bacilli and Actinobacteria were the most abundant. The most frequently detected fungal genera were Malassezia, Aspergillus and Cladosporium. Attached microbiomes did not statistically differ between these two soils. However, Malassezia globosa and four fungal species of the family Plectosphaerellaceae, and the bacterium Neorhizobium galegae were strongly enriched on M. incognita in the suppressive soil. In conclusion, the highly specific attachment of microbes to infective stages of phytonematodes in soil suggested an ecological role of this association and might be involved in soil suppressiveness towards them.
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Affiliation(s)
- Ahmed Elhady
- Dept. Epidemiology and Pathogen Diagnostics, Julius Kühn-Institut—Federal Research Centre for Cultivated Plants, Braunschweig, Germany
- Department of Plant Protection, Faculty of Agriculture, Benha University, Benha, Egypt
| | - Ariadna Giné
- Departament d’Enginyeria Agroalimentària i Biotecnologia, Universitat Politècnica de Catalunya, Castelldefels, Spain
| | - Olivera Topalovic
- Dept. Epidemiology and Pathogen Diagnostics, Julius Kühn-Institut—Federal Research Centre for Cultivated Plants, Braunschweig, Germany
| | - Samuel Jacquiod
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Søren J. Sørensen
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Francisco Javier Sorribas
- Departament d’Enginyeria Agroalimentària i Biotecnologia, Universitat Politècnica de Catalunya, Castelldefels, Spain
| | - Holger Heuer
- Dept. Epidemiology and Pathogen Diagnostics, Julius Kühn-Institut—Federal Research Centre for Cultivated Plants, Braunschweig, Germany
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Evaluation of the Biocontrol Potential of Purpureocillium lilacinum QLP12 against Verticillium dahliae in Eggplant. BIOMED RESEARCH INTERNATIONAL 2017; 2017:4101357. [PMID: 28303252 PMCID: PMC5337802 DOI: 10.1155/2017/4101357] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 10/24/2016] [Indexed: 11/21/2022]
Abstract
A fungus with broad spectrum antifungal activity was isolated from the soil in Qinling Mountain, Shaanxi Province, in China. The fungus was identified as Purpureocillium lilacinum based on ITS rDNA gene analysis. The strain, coded as QLP12, showed high inhibition activity on fungal mycelium growth in vitro, especially to Mucor piriformis, Trichothecium roseum, Rhizoctonia solani, and Verticillium dahliae, and its potential for biocontrol efficacy of eggplant. Verticillium wilt disease caused by Verticillium dahliae among 10 fungal species tested was explored. In greenhouse experiments, QLP12 showed an excellent growth-promoting effect on eggplant seed germination (76.7%), bud growth (79.4%), chlorophyll content (47.83%), root activity (182.02%), and so on. QLP12 can colonize the eggplant interior and also develop in rhizosphere soil. In greenhouse, the incidence of Verticillium wilt decreased by 83.82% with pretreated QLP12 fermentation broth in the soil. In the field, QLP12 showed prominent biocontrol effects on Verticillium wilt by reducing the disease index over the whole growth period, a decline of 40.1%. This study showed that the strain QLP12 is not only an effective biocontrol agent for controlling Verticillium wilt of eggplant, but also a plant growth-promoting fungus that deserves to be further developed.
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Song Z, Shen L, Zhong Q, Yin Y, Wang Z. Liquid culture production of microsclerotia of Purpureocillium lilacinum for use as bionematicide. NEMATOLOGY 2016. [DOI: 10.1163/15685411-00002987] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The production of microsclerotia by Purpureocillium lilacinum in liquid culture for use as a biocontrol agent for management of root-knot nematode, Meloidogyne incognita, has not been described. To investigate the potential for microsclerotia production, P. lilacinum strain CQPL01 was cultured in liquid media containing various concentrations of ferrous sulphate. Under these conditions mycelia began to form microsclerotia. The maximum yield (11.8 × 104 microsclerotia ml−1) was obtained in medium containing 0.2 g l−1 ferrous sulphate and the greatest production of conidia (1.3 × 108 conidia g−1) was obtained by the culture of air-dried microsclerotia in aqueous agar medium. Subsequently, the viability of microsclerotia, including stress resistance, storage stability and pathogenicity against M. incognita, was investigated. The microsclerotia exhibited excellent nematophagous ability and greater thermotolerance and UV-B radiation tolerance compared to conidia. These results suggested that microsclerotia propagules might be superior to the use of conidia in P. lilacinum biocontrol products.
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Affiliation(s)
- Zhangyong Song
- Chongqing Engineering Research Center for Fungal Insecticide, School of Life Science, Chongqing University, Chongqing 400030, People’s Republic of China
| | - Ling Shen
- Chongqing Engineering Research Center for Fungal Insecticide, School of Life Science, Chongqing University, Chongqing 400030, People’s Republic of China
| | - Qiang Zhong
- Chongqing Engineering Research Center for Fungal Insecticide, School of Life Science, Chongqing University, Chongqing 400030, People’s Republic of China
| | - Youping Yin
- Chongqing Engineering Research Center for Fungal Insecticide, School of Life Science, Chongqing University, Chongqing 400030, People’s Republic of China
| | - Zhongkang Wang
- Chongqing Engineering Research Center for Fungal Insecticide, School of Life Science, Chongqing University, Chongqing 400030, People’s Republic of China
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Heterologous expression of VHb can improve the yield and quality of biocontrol fungus Paecilomyces lilacinus, during submerged fermentation. J Biotechnol 2014; 187:147-53. [DOI: 10.1016/j.jbiotec.2014.07.438] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 07/18/2014] [Accepted: 07/23/2014] [Indexed: 11/15/2022]
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Ellouze W, Esmaeili Taheri A, Bainard LD, Yang C, Bazghaleh N, Navarro-Borrell A, Hanson K, Hamel C. Soil fungal resources in annual cropping systems and their potential for management. BIOMED RESEARCH INTERNATIONAL 2014; 2014:531824. [PMID: 25247177 PMCID: PMC4163387 DOI: 10.1155/2014/531824] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 07/08/2014] [Indexed: 12/11/2022]
Abstract
Soil fungi are a critical component of agroecosystems and provide ecological services that impact the production of food and bioproducts. Effective management of fungal resources is essential to optimize the productivity and sustainability of agricultural ecosystems. In this review, we (i) highlight the functional groups of fungi that play key roles in agricultural ecosystems, (ii) examine the influence of agronomic practices on these fungi, and (iii) propose ways to improve the management and contribution of soil fungi to annual cropping systems. Many of these key soil fungal organisms (i.e., arbuscular mycorrhizal fungi and fungal root endophytes) interact directly with plants and are determinants of the efficiency of agroecosystems. In turn, plants largely control rhizosphere fungi through the production of carbon and energy rich compounds and of bioactive phytochemicals, making them a powerful tool for the management of soil fungal diversity in agriculture. The use of crop rotations and selection of optimal plant genotypes can be used to improve soil biodiversity and promote beneficial soil fungi. In addition, other agronomic practices (e.g., no-till, microbial inoculants, and biochemical amendments) can be used to enhance the effect of beneficial fungi and increase the health and productivity of cultivated soils.
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Affiliation(s)
- Walid Ellouze
- Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1030, 1 Airport Road, Swift Current, SK, Canada S9H 3X2
| | - Ahmad Esmaeili Taheri
- Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1030, 1 Airport Road, Swift Current, SK, Canada S9H 3X2
- Department Food and Bioproduct Sciences, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, Canada S7N 5A8
| | - Luke D. Bainard
- Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1030, 1 Airport Road, Swift Current, SK, Canada S9H 3X2
| | - Chao Yang
- Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1030, 1 Airport Road, Swift Current, SK, Canada S9H 3X2
- Department Food and Bioproduct Sciences, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, Canada S7N 5A8
| | - Navid Bazghaleh
- Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1030, 1 Airport Road, Swift Current, SK, Canada S9H 3X2
- Department of Soil Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, Canada S7N 5A8
| | - Adriana Navarro-Borrell
- Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1030, 1 Airport Road, Swift Current, SK, Canada S9H 3X2
- Department of Soil Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, Canada S7N 5A8
| | - Keith Hanson
- Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1030, 1 Airport Road, Swift Current, SK, Canada S9H 3X2
| | - Chantal Hamel
- Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1030, 1 Airport Road, Swift Current, SK, Canada S9H 3X2
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Enhancing the virulence of Paecilomyces lilacinus against Meloidogyne incognita eggs by overexpression of a serine protease. Biotechnol Lett 2010; 32:1159-66. [DOI: 10.1007/s10529-010-0278-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2010] [Accepted: 04/13/2010] [Indexed: 10/19/2022]
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