Article
Microbiology
Sajjad Hyder, Amjad Shahzad Gondal, Zarrin Fatima Rizvi, Rashida Atiq, Muhammad Irtaza Sajjad Haider, Nida Fatima, Muhammad Inam-ul-Haq
Summary: The study isolated and characterized PGPR indigenous to chili rhizosphere in Pakistan, with identified bacterial isolates being effective against Pythium myriotylum, non-pathogenic to chili seeds, and significantly improving seed germination and seedling growth. These native PGPR bacteria possess beneficial traits for chili plants and can potentially be used as eco-friendly and effective seed treatment alternatives to synthetic chemical fungicides.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Carol Diaz-Gutierrez, Catalina Arroyave, Merce Llugany, Charlotte Poschenrieder, Soledad Martos, Carlos Pelaez
Summary: The study demonstrated that the Trichoderma asperellum UDEAGIEM-H01 strain has high potential, primarily as a preventive agent, to control Fusarium oxysporum in stevia plants, showing additional antagonistic effects and mycoparasitism on other fungal pathogens.
BIOLOGICAL CONTROL
(2021)
Article
Plant Sciences
Paul Daly, Yifan Chen, Qimeng Zhang, Hongli Zhu, Jingjing Li, Jinfeng Zhang, Sheng Deng, Lunji Wang, Dongmei Zhou, Zhaoyang Tang, Lihui Wei
Summary: This study identified and analyzed the Pythiumspecies associated with Pythium soft rot of ginger in China, and found that P. myriotylum was the major pathogen, with differences between Chinese and Australian isolates of P. myriotylum. Additionally, the study analyzed the growth ability, disease severity on ginger plants, and aggressiveness of colonization on ginger rhizome sticks of the isolates, and found variations in these characteristics.
Article
Biotechnology & Applied Microbiology
Taha Majid Mahmood Sheikh, Dongmei Zhou, Muhammad Salman Haider, Sarfraz Hussain, Nan Wang, Siqiao Chen, Yishen Zhao, Xian Wen, Hui Feng, Xiaoyu Wang, Jinfeng Zhang, Lunji Wang, Sheng Deng, Waseem Raza, Lihui Wei, Paul Daly
Summary: This study investigated the effect of volatile organic compounds (VOCs) produced by the soil-inhabiting parasite Pythium oligandrum on the growth and infection of Pythium myriotylum. The VOCs reduced the growth and caused damage to the hyphae of P. myriotylum, leading to reduced infection of its plant hosts. Therefore, the VOCs produced by P. oligandrum may contribute to its ecological role as a microbial parasite and have potential applications in biocontrol.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Microbiology
Paul Daly, Siqiao Chen, Taiqiang Xue, Jingjing Li, Taha Majid Mahmood Sheikh, Qimeng Zhang, Xuehai Wang, Jinfeng Zhang, David A. Fitzpatrick, Jamie McGowan, Xiujuan Shi, Sheng Deng, Min Jiu, Dongmei Zhou, Irina S. Druzhinina, Lihui Wei
Summary: Biological control is a promising method to suppress diseases caused by Pythium spp., with studies showing that a new isolate of P. oligandrum could antagonize the pathogen P. myriotylum. The interaction between these two species resulted in significant changes in gene expression, indicating a predatory interaction. Despite the host's defensive strategy response, P. oligandrum demonstrated strong control over soft-rot of ginger caused by P. myriotylum, making it a promising biocontrol agent. Dual-RNAseq approach highlighted features of a defensive response by the pathogen and suggested factors that may impact the success and durability of biological control methods.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Microbiology
Paul Daly, Dongmei Zhou, Danyu Shen, Yifan Chen, Taiqiang Xue, Siqiao Chen, Qimeng Zhang, Jinfeng Zhang, Jamie McGowan, Feng Cai, Guan Pang, Nan Wang, Taha Majid Mahmood Sheikh, Sheng Deng, Jingjing Li, Huseyin Okan Soykam, Irem Kara, David A. Fitzpatrick, Irina S. Druzhinina, Gunseli Bayram Akcapinar, Lihui Wei
Summary: The study reveals that the necrotrophic Pythium myriotylum has a larger number of virulence factor-related genes compared to other Pythium plant pathogens. The genome and transcriptome analysis show that gene expansion of virulence factor-related genes plays a bigger role in the plant parasitism of Pythium spp., providing insights for the management of P. myriotylum-caused disease.
MICROBIOLOGY SPECTRUM
(2022)
Article
Plant Sciences
Theint Theint Win, Bo Bo, Przemyslaw Malec, Sikandar Khan, Pengcheng Fu
Summary: The study found that Trichoderma asperellum can inhibit the growth of plant pathogenic fungi through various mechanisms such as competition, antibiotic action, and mycoparasitism, playing an important role in alleviating diseases caused by Fusarium genus fungi.
JOURNAL OF PLANT PATHOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Rui Wang, Xinyuan An, Yudie Lv, Raja Asad Ali Khan, Ming Xue, Jie Chen, Tong Liu
Summary: Coffee anthracnose is a worldwide disease that has adversely affected coffee growers' profits. This study identified Colletotrichum cairnsense as a pathogen causing coffee anthracnose and discovered Trichoderma asperellum GD040 as an effective antagonist with strong inhibition and mycoparasitism abilities. The application of T. asperellum GD040 spore suspension through root irrigation effectively reduced lesion size on coffee leaves caused by C. cairnsense. Transcriptomic analysis revealed the up-regulation of 175 genes, including disease-resistance genes and genes associated with pathways such as plant-pathogen interaction and phenylpropanes biosynthesis, in coffee treated with T. asperellum GD040. Furthermore, qRT-PCR analysis demonstrated the significant up-regulation of key resistance genes and growth hormone synthesis-related genes in coffee leaves treated with T. asperellum GD040, indicating its potential for inducing host resistance against anthracnose. These findings provide valuable insights into the antagonistic mode and molecular mechanisms underlying Trichoderma-mediated control of coffee anthracnose.
BIOLOGICAL CONTROL
(2023)
Article
Biochemistry & Molecular Biology
Nan Wang, Zhiyuan Yin, Yingke Wu, Jishuo Yang, Yaning Zhao, Paul Daly, Yong Pei, Dongmei Zhou, Daolong Dou, Lihui Wei
Summary: The oomycete Pythium myriotylum is a necrotrophic pathogen that induces cell death in plants. A small cysteine-rich protein, PmSCR1, was identified and found to trigger immune responses in host plants. PmSCR1 is independent of enzymatic activity and its elicitor function has been shown to promote resistance to Phytophthora sojae and Phytophthora capsici infection.
MOLECULAR PLANT-MICROBE INTERACTIONS
(2023)
Article
Plant Sciences
P. Princy, Aswati R. Nair, Sharmila Raj
Summary: Antagonistic endophytes isolated from wild ginger were evaluated as potential biocontrol agents for soft-rot disease caused by Pythium myriotylum. Bacillus isolates ZzER11 and ZzER62 showed significant inhibition of P. myriotylum and were characterized for the production of lipopeptide biosurfactants. These antagonistic endophytic isolates offer a promising solution for imparting resistance to ginger cultivars. Rating: 8 out of 10.
ACTA PHYSIOLOGIAE PLANTARUM
(2023)
Article
Agronomy
Robert Pearce, William Barlow, Emily Pfeufer
Summary: Pythium root rot is a significant disease of tobacco transplants, but its influence in the field is not well understood. Chemical options for managing the disease are limited, and more data on fungicide efficacy are needed. Etridiazole and mefenoxam improved root ball quality in greenhouse trials, and higher root ball quality increased plant establishment, survival, and cured tobacco yield in research farm trials. These results provide insight into the influence of transplant PRR on tobacco yield.
Article
Microbiology
Zeiad Moussa, Yasmene F. Alanazi, Aiah Mustafa Khateb, Noha M. Eldadamony, Marwa M. Ismail, WesamEldin I. A. Saber, Doaa Bahaa Eldin Darwish
Summary: In this investigation, Trichoderma asperellum ZNW was found to enhance the growth and productivity of pea plants, while Globisporangium ultimum NZW was identified as a pathogen causing damping-off in pea seeds. The study highlights the potential of utilizing Trichoderma asperellum ZNW as a new approach for plant protection and growth promotion.
Article
Biotechnology & Applied Microbiology
Doris A. Pradhan, Prathyusha Bagagoni, Ragiba Makandar
Summary: The study aimed to identify effective strains of Trichoderma asperellum for colonizing castor roots, promoting growth, and limiting pathogen infection. The strains 7316 and N13 were found to have strong antagonistic competencies against Fusarium oxysporum through dual culture-confrontation and in-planta assays, and they also showed high mycoparasitic propensity. Biochemical analysis revealed that Trichoderma can protect against oxidative stress damage. Therefore, these strains could be utilized as potential biocontrol agents to enhance growth and confer resistance to Fusarium oxysporum ricini.
BIOLOGICAL CONTROL
(2023)
Article
Plant Sciences
P. F. Kouomou Djuidje, W. Asultan, C. Beaulieu, M. Y. Wong, T. Boudjeko
Summary: This study isolated, evaluated, and characterized four endophytic actinobacteria from cocoyam roots in Cameroon, showing strong antagonistic activity against Pythium myriotylum and plant growth-promoting traits. Specifically, isolate PERM2 demonstrated significant production of plant hormones, suggesting its potential in plant disease management and growth promotion.
SOUTH AFRICAN JOURNAL OF BOTANY
(2022)
Article
Microbiology
Katerina Belonoznikova, Veronika Hyskova, Josef Chmelik, Daniel Kavan, Noemi Cerovska, Helena Ryslava
Summary: This article reviews the positive effects of Pythium oligandrum as a biocontrol agent, focusing on its biochemical processes and effects on plants. P. oligandrum degrades host cell wall polysaccharides, competes for nutrients and space, and enhances plant defense mechanisms, resulting in better plant responses to pathogen attacks. Additionally, P. oligandrum promotes plant health through the production of secondary metabolites and the promotion of plant growth.
MICROBIOLOGICAL RESEARCH
(2022)
Article
Agronomy
M. Mbenoun, M. J. Wingfield, A. D. Begoude Boyogueno, F. Nsouga Amougou, S. Petchayo Tigang, G. M. ten Hoopen, C. V. Mfegue, L. Dibog, S. Nyasse, B. D. Wingfield, J. Roux
Article
Agronomy
S. S. Ali, I. Amoako-Attah, R. A. Bailey, M. D. Strem, M. Schmidt, A. Y. Akrofi, S. Surujdeo-Maharaj, O. O. Kolawole, B. A. D. Begoude, G. M. ten Hoopen, E. Goss, W. Phillips-Mora, L. W. Meinhardt, B. A. Bailey
Article
Evolutionary Biology
Shahin S. Ali, Jonathan Shao, David J. Lary, Brent A. Kronmiller, Danyu Shen, Mary D. Strem, Ishmael Amoako-Attah, Andrew Yaw Akrofi, B. A. Didier Begoude, G. Martijn ten Hoopen, Klotioloma Coulibaly, Boubacar Ismael Kebe, Rachel L. Melnick, Mark J. Guiltinan, Brett M. Tyler, Lyndel W. Meinhardt, Bryan A. Bailey
GENOME BIOLOGY AND EVOLUTION
(2017)
Article
Biotechnology & Applied Microbiology
M. Ndoungue, S. Petchayo, Z. Techou, W. G. Nana, C. Nembot, D. Fontem, G. M. Ten Hoopen
BIOLOGICAL CONTROL
(2018)
Article
Entomology
Regis Babin, Gerben M. Ten Hoopen, Christian Cilas, Frank Enjalric, Yede, Pierre Gendre, Jean-Pierre Lumaret
AGRICULTURAL AND FOREST ENTOMOLOGY
(2010)
Article
Plant Sciences
C. V. Mfegue, C. Herail, H. Adreit, M. Mbenoun, Z. Techou, M. Ten Hoopen, D. Tharreau, M. Ducamp
AMERICAN JOURNAL OF BOTANY
(2012)
Article
Agriculture, Multidisciplinary
G. Martijn ten Hoopen, P. Deberdt, M. Mbenoun, C. Cilas
ANNALS OF APPLIED BIOLOGY
(2012)
Article
Biotechnology & Applied Microbiology
Ulrike Krauss, Eduardo Hidalgo, Roy Bateman, Valex Adonijah, Claudio Arroyo, Johnny Garcia, Jayne Crozier, Neil A. Brown, G. Martijn ten Hoopen, Keith A. Holmes
BIOLOGICAL CONTROL
(2010)
Article
Biotechnology & Applied Microbiology
Ulrike Krauss, Martijn ten Hoopen, Robert Rees, Tim Stirrup, Tim Argyle, Andre George, Claudio Arroyo, Eduardo Corrales, Fernando Casanoves
BIOLOGICAL CONTROL
(2013)
Article
Biotechnology & Applied Microbiology
J. B. Mbarga, B. A. D. Begoude, Z. Ambang, M. Meboma, J. Kuate, B. Schiffers, W. Ewbank, L. Dedieu, G. M. ten Hoopen
BIOLOGICAL CONTROL
(2014)
Article
Agronomy
P. Kosma, Z. Ambang, B. A. D. Begoude, G. M. Ten Hoopen, J. Kuate, A. Akoa
Article
Mathematics, Applied
Christian Nembot, Patrice Takam Soh, Gerben Martijn ten Hoopen, Yves Dumont
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2018)
Article
Mycology
G. Martijn ten Hoopen, Andre George, Adolfo Martinez, Tim Stirrup, Julie Flood, Ulrike Krauss
Article
Agronomy
Raymond J. Mahob, Regis Babin, Gerben M. ten Hoopen, Luc Dibog, Yede, David R. Hall, Charles F. Bilong Bilong
PEST MANAGEMENT SCIENCE
(2011)
Article
Agronomy
Talent Namatsheve, Remi Cardinael, Regis Chikowo, Marc Corbeels, Joyful Tatenda Rugare, Stanford Mabasa, Aude Ripoche
Summary: Weeds pose a significant threat to crop growth in low-input cropping systems in sub-Saharan Africa. The study found that planting sole cowpea can effectively reduce weed infestation, while having little impact on maize yield.
Article
Agronomy
Jens G. Froese, Justine V. Murray, Nicholas J. Beeton, Rieks D. van Klinken
Summary: This article introduces a generic Bayesian network model called PRReSTo, which estimates likely infestation rates of host items in consignments. PRReSTo takes into account the vulnerability of host items to pest infestation, the abundance of pests to which host items are exposed, and the effects of risk-reducing measures. PRReSTo can be used to evaluate the effectiveness and acceptability of risk reduction measures in different pest-host systems.
Article
Agronomy
Alexis Delaplace, Mathieu Coulis, Gwenaelle Cottin, Philippe Tixier
Summary: This study compares the effectiveness of two fallow trapping patterns and finds that internal trapping of fallow land can clean up plots twice as quickly as trapping surrounding the fallow land. Additionally, trapping efficiency is influenced by climatic conditions, with the wet season being more favorable for trapping than the dry season.
Article
Agronomy
Todd E. Shelly, Kevin R. Cloonan
Summary: Invasive tephritid fruit flies pose a significant threat to commercial fruit and vegetable production. Early detection is crucial, and male lures are an important component of trapping networks. This review aims to summarize data on the change in attractiveness of male lures during aging in the field, highlighting studies that relate trap captures to changes in residual content and release rate.
Article
Agronomy
M. F. Lombardo, S. Panebianco, A. Azzaro, G. Timpanaro, G. Polizzi, G. Cirvilleri
Summary: Colletotrichum and Alternaria species have become emerging fungal pathogens causing severe economic losses in citrus orchards in the Mediterranean area. The use of copper-based antimicrobials for disease management is increasingly problematic, and research for alternative formulations is encouraged. This study tested copper-alternative products on citrus orchards and found that they significantly reduced disease incidence and severity, often showing comparable or better efficacy than copper. The good efficacy of these products suggests their potential for sustainable and large-scale use in integrated and organic citriculture.
Article
Agronomy
Innocent L. Rakubu, Agil Katumanyane, Brett P. Hurley
Summary: This study investigated the host-foraging strategies of five EPN species in South Africa and found that four of them exhibited a positive response to the presence of the host and caused 100% mortality, while the other species had a lower infection rate.
Article
Agronomy
Yuli Dai, Lin Gan, Xiaofei Liu, Chengzhong Lan, Zhiqiang Li, Xiujuan Yang
Summary: This study reports the occurrence of leaf spot disease caused by Colletotrichum plurivorum on cowpea plants in Pingnan prefecture, Fujian Province, China. The pathogen was identified based on morphological features and gene sequencing. Pathogenicity tests confirmed that the isolates of C. plurivorum could infect healthy cowpea leaves and induce leaf spot symptoms.
Article
Agronomy
Wenqing Xu, Weikai Li
Summary: Crop pests and diseases have a significant impact on crop yield and food security. This paper proposes FRseNet, a model based on ResNet-50 and SENet, for recognizing various crop pests and diseases. Experimental results on a self-constructed dataset demonstrate the competitive performance of the model in recognizing 15 diseases and 21 medium insect pests.
Article
Agronomy
Hector Carcamo, Carolyn Herle, Timothy Schwinghamer, Samuel Robinson, Patty Reid, R. Keith Gabert, Tyler Wist, Breanne Tidemann, Alejandro C. Costamagna
Summary: This study updated the economic thresholds for Lygus spp., a major insect pest of canola in Canada, by integrating a large data set collected over 23 years. The results revealed that the economic injury level for Lygus was around 9-23 insects per 10 sweeps, while spraying a foliar insecticide was only necessary when Lygus catches exceeded 30 insects per 10 sweeps. Additionally, analysis of Precision Yield Data showed that at low abundances (under 17 insects per 10 sweeps), Lygus may potentially stimulate canola yield and do not require control action.
Article
Agronomy
Medetissi Adom, Ken O. Fening, Maxwell K. Billah, Pascal O. Aigbedion-Atalor, David D. Wilson
Summary: Chilli pepper is an important food and cash crop in Ghana, but its production and marketing are hindered by insect pests. This study evaluated the efficacy of five different biopesticides against major chilli pepper pests and found that Neemazal and Attack were more effective than the other three in controlling these pests.
Article
Agronomy
Fariba Ghaderi, Soraya Karami
Summary: This study identified Phytophthora species causing root and crown rot in the main sesame-producing regions of Iran. The most aggressive species was found to be P. nicotianae. Additionally, sesame cultivars with high resistance to P. nicotianae and P. megasperma were identified. This is the first report of P. megasperma infection in sesame worldwide.
Article
Agronomy
Caroline Izabel R. Sakuno, Fabricio Jose B. Francischini, Karen Missy A. Komada, Murilo Basso, Fangneng Huang
Summary: The giant borer, Telchin licus, is a significant pest of sugarcane in Central and South America, and traditional control methods are ineffective due to the larvae's hiding behavior. Recent research has shown that transgenic sugarcane expressing Bacillus thuringiensis proteins, originally developed to control another sugarcane pest, can also effectively control the giant borer.
Article
Agronomy
Lucas de Paulo Arcanjo, Poliana Silvestre Pereira, Juliana Lopes dos Santos, Kayo Heberth de Brito Reis, Allana Grecco Guedes, Damaris Rosa de Freitas, Mikaelison da Silva Lima, Mayara Cristina Lopes, Renato Almeida Sarmento, Marcelo Coutinho Picanco
Summary: This study developed a standardized sampling plan for scouting B. tabaci adults in tropical soybean fields and identified the appropriate sample unit and sampling technique. A total of 49 samples per field were required, and the sampling process lasted no more than 5 min per hectare with associated costs not exceeding US$ 0.74 per hectare.
Article
Agronomy
Vicente Bezerra Pontes Junior, Levi Andres Bonilla Rave, Adalin Moraes Cezar de Aguiar, Alessandro da Costa Lima, Ana Flavia Souza Laube, Leonardo D'Antonino, Antonio Alberto da Silva
Summary: This study aimed to investigate the influence of diuron's adsorption characteristics in soil on dose determination. The results showed that organic matter content was a key factor in determining diuron's sorption and toxicity to E. indica.
Article
Agronomy
Lu Xun, Emilio Gil
Summary: A novel methodology was proposed to analyze water-sensitive papers (WSPs) for evaluating spray quality. The segmentation of overlapping droplets based on concave point detection and ellipse fitting achieved high accuracy. A linear relationship between droplet density and coverage was observed, and simulated WSPs were generated for high coverage estimation. This approach allows for more accurate spray quality indicators from WSP collectors.