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
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
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
Immunology
Garima Singh, Abhay Tiwari, Gourav Choudhir, Anuj Kumar, Sushil Kumar, P. Hariprasad, Satyawati Sharma
Summary: This study assessed the potential role of bioactives produced by Trichoderma sp. in combating cell wall degrading enzymes secreted by phytopathogens. The results revealed that Trichodermamide B, Viridin, Virone, and Trichosetin showed potential inhibitory activity against the PG2 enzyme.
MICROBIAL PATHOGENESIS
(2022)
Article
Biotechnology & Applied Microbiology
Rui Wang, Xiaoli Yu, Yaping Yin, Justice Norvienyeku, Raja Asad Ali Khan, Manman Zhang, Sen Ren, Jie Chen, Tong Liu
Summary: Fusarium wilt is a major challenge in cucumber production, but this study found that Trichoderma asperellum FJ035 has a strong antagonistic effect against the disease. The results showed that T. asperellum FJ035 inhibited the spore germination of the pathogen and improved cucumber seed germination. It also effectively reduced the accumulation of the pathogen on cucumber roots and improved cucumber growth.
BIOLOGICAL CONTROL
(2023)
Article
Agronomy
Eman F. A. Awad-Allah, Amany H. M. Shams, Amira A. Helaly, Entsar I. M. Ragheb
Summary: The present study aimed to evaluate the abilities of Trichoderma isolates to prevent Fusarium wilt disease in cherry tomato plants and enhance their growth and development. The results showed that Trichoderma isolates displayed antagonism against the F. solani pathogen and improved plant growth and nutrient uptake.
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
Plant Sciences
Amer Morsy Abdelaziz, Mohamed S. Attia, Marwa S. Salem, Dina A. Refaay, Wardah A. Alhoqail, Hoda H. Senousy
Summary: Research has shown that using cyanobacteria, such as Arthrospira platensis, Desmonostoc muscorum, and Anabaena oryzae, through foliar spraying is an effective approach to induce immunity against Fusarium wilt in Capsicum annuum L. These cyanobacterial extracts significantly reduced the risk of infection and improved plant growth, metabolic characteristics, and phenol levels. The application of cyanobacteria also enhanced the activity of antioxidant enzymes and altered the endogenous hormone content in the infected plants.
Article
Biotechnology & Applied Microbiology
Alexsander Augusto da Silveira, Jackeline Santana Paula Andrade, Ana Carla Peixoto Guissoni, Adeliane Castro da Costa, Arthur de Carvalho e Silva, Heloisa Garcia da Silva, Pedro Brito, Guilherme Rocha Lino de Souza, Katia Flavia Fernandes
Summary: The study demonstrates the potential of a chitinolytic enzyme complex produced by Trichoderma asperellum to effectively kill Aedes aegypti larvae, showing promise as an alternative to conventional chemical insecticides. This specific enzyme mixture shows high mortality rates and profound changes in cellular structures, indicating its suitability for mosquito control.
BIOTECHNOLOGY PROGRESS
(2021)
Article
Agronomy
Ahmed Mohamed Nabil Abdelraouf, Akram Abdelmonem Hussain, Deyala M. Naguib
Summary: The synergistic effect of using nanochitosan to deliver Pseudomonas fluorescens on its stability in the soil and induction resistance against fusarium wilt in tomato plants was investigated. The results showed that the nano-Pf treatment resulted in the highest growth and disease reduction percentage. Additionally, the treatment enhanced the defense enzyme activity in tomato plants and effectively mitigated Fusarium wilt infection.
Article
Plant Sciences
Ali Athafah Tomah, Iman Sabah Abd Alamer, Arif Ali Khattak, Temoor Ahmed, Ashraf Atef Hatamleh, Munirah Abdullah Al-Dosary, Hayssam M. Ali, Daoze Wang, Jingze Zhang, Lihui Xu, Bin Li
Summary: This study evaluated the ability of Trichoderma isolates to degrade microsclerotia of Verticillium dahliae and found that isolate HZA14 showed the greatest potential for microsclerotial degradation. The culture filtrate of HZA14 also inhibited the growth and germination of V. dahliae. Additionally, it was discovered that T. virens HZA14 produced siderophores and indole-3-acetic acid, and reduced disease severity and promoted plant growth in eggplant seedlings.
Article
Biochemistry & Molecular Biology
M. Sathiyabama, M. Indhumathi
Summary: The present study evaluated the effect of chitosan thiamine nanoparticles on the activation of defence responses in chickpea against stress caused by wilt pathogen. The results suggest that the use of chitosan thiamine nanoparticles enhances antioxidant activity and resistance in chickpea plants.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Forestry
Jun Sun, Xuemei Zhang, Jinli Zheng, Guangping Liu, Lijing Chen
Summary: In this study, we investigated the resistance levels of eight hazelnut varieties to Botrytis cinerea infection. The results showed that different varieties responded differently to the infection, with DW and OZ being the most resistant, and L1 and QX being the most susceptible. Enzyme activity analysis validated the resistance order revealed by disease index assessment results.
Article
Entomology
A. M. Nofal, Mohamed Abd El-Rahman, T. M. Abdelghany, Mahmoud Abd El-Mongy
Summary: This study demonstrated that T. atrovirde has significant inhibition against F. oxysporum, improving growth aspects of tomato plants and decreasing disease incidence. Greenhouse assays showed the protective role of T. atrovirde inoculation directly against pathogens or indirectly related to the plant's defense mechanism.
EGYPTIAN JOURNAL OF BIOLOGICAL PEST CONTROL
(2021)
Article
Plant Sciences
Wenhao Yang, Yu Li, Qian Zhao, Yuting Guo, Yan Dong
Summary: This study analyzed the mechanisms behind cinnamic acid promoting Fusarium wilt and intercropping alleviating Fusarium wilt in faba beans. The results showed that cinnamic acid increased the activities of cell wall degradation enzymes produced by Fusarium, as well as the expression of pathogenesis-related genes and the contents of phenolics and lignin in the roots. Furthermore, intercropping with wheat decreased the activities of cell wall degradation enzymes produced by Fusarium and increased the resistance of root cell walls to infection, thus reducing the occurrence of Fusarium wilt.
PHYSIOLOGIA PLANTARUM
(2022)
Article
Multidisciplinary Sciences
Jawwad Hassan Mirza, Muhammad Kamran, Amgad A. Saleh, Fahad Jaber Alatawi
Article
Parasitology
Kashif Munawar, Amgad Saleh, Muhammad Afzal, Muhammad Qasim, Khalid Ali Khan, Mazhar Iqbal Zafar, Emad Khater
Article
Plant Sciences
Mahmoud H. El Komy, Yasser E. Ibrahim, Amgad A. Saleh, Younes Y. Molan
JOURNAL OF PLANT PATHOLOGY
(2020)
Article
Entomology
Emad I. M. Khater, Farrukh Baig, Hany A. Kamal, Jeffery R. Powell, Amgad A. Saleh
Summary: The study on the phylo- and population genetics of Ae. aegypti in Saudi Arabia revealed that water storage tanks are the main breeding sites, alongside containers related to wastewater drainage and cooling devices. The genetic analysis showed high levels of variation and multiple gene introductions, highlighting the need for informed control efforts to manage this important arboviral vector effectively.
JOURNAL OF MEDICAL ENTOMOLOGY
(2021)
Article
Multidisciplinary Sciences
Amgad A. Saleh, Anwar H. Sharafaddin, Mahmoud H. El Komy, Yasser E. Ibrahim, Younis K. Hamad
Summary: The genetic variation of Fusarium strains isolated from diseased date palm trees in Saudi Arabia was assessed using SSR markers, and the impact of different temperatures on mycelial growth and pathogenicity of specific strains was studied. The SSR markers developed for F. verticillioides and F. oxysporum were effective in confirming the identity and genetic diversity of the Saudi Fusarium strains. Results showed significant differences in mycelial growth at different temperatures and varied pathogenicity of F. proliferatum strains on date palm cultivars.
Article
Agronomy
Mahmoud H. El-Komy, Riyadh M. Al-Qahtani, Yasser E. Ibrahim, Ali A. Almasrahi, Mohammed A. Al-Saleh
Summary: This study evaluated the biocontrol potential of 20 native Trichoderma asperellum strains against Fusarium root and stem rot (FRSR) in cucumber plants. Two strains (TAS23 and TAS27) showed the highest antagonistic capacity and their mixture (TASMix) had a synergistic effect, significantly reducing disease incidence and severity in greenhouse trials. The reduction in FRSR was accompanied by a decrease in pathogen populations and improved plant growth.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2022)
Article
Mycology
Marileide M. Costa, Amgad A. Saleh, Maruzanete P. Melo, Elaine Aparecida Guimaraes, J. Peter Esele, Kurt A. Zeller, Brett A. Summerell, Ludwig H. Pfenning, John F. Leslie
Summary: This study reveals the pathogenic and endophytic effects of several species within the Fusarium fujikuroi Species Complex on tropical grasses through morphological markers, genetic analysis, and pathogenicity tests. A novel species, Fusarium mirum, is described, which differs from other known species in the complex. The close genetic relationship between F. mirum, F. madaense, and F. andiyazi is found, with limitations in inter-specific genetic exchange.
Article
Evolutionary Biology
Olivier Pruvost, Yasser Eid Ibrahim, Anwar Hamoud Sharafaddin, Karine Boyer, Arya Widyawan, Mohammed Ali Al-Saleh
Summary: Molecular epidemiology studies play a crucial role in understanding the migration, emergence, and population structure of plant pathogens. This study on Xanthomonas citri pv. citri in Arabian Peninsula provides insights into its introduction history and genetic diversity. It identifies multiple introductions and highlights the prevalence of specialist pathotype strains in two countries. Human activities are found to influence the pathogen's spread.
EVOLUTIONARY APPLICATIONS
(2022)
Editorial Material
Plant Sciences
Mahmoud H. El-Komy, Yasser E. Ibrahim, Mohammed A. Al-Saleh
Article
Microbiology
Yasser E. Ibrahim, Jorge R. Paredes-Montero, Mohammed A. Al-Saleh, Arya Widyawan, Ruifeng He, Mahmoud H. El Komy, Hathal M. Al Dhafer, Noel Kitchen, David R. Gang, Judith K. Brown
Summary: This study investigated the citrus greening disease in Saudi Arabia and found that it is caused by the Asian citrus psyllid transmitting the Candidatus Liberibacter asiaticus. The study also analyzed the genetic makeup of the psyllids and identified two major lineages of the pathogen.
Article
Agronomy
Yasser Abobakr, Ali S. Al-Sarar, Ali A. Alzabib, Amgad A. Saleh
Summary: The first record of Macrochlamys indica in Saudi Arabian agricultural nurseries is reported, suggesting recent introduction. Control measures should be implemented to prevent its dissemination to natural habitats or agricultural fields.
Editorial Material
Plant Sciences
Mahmoud H. H. El-Komy, Xuewen Gao, Ali Almasrahi, Yasser E. E. Ibrahim, Anwar H. H. Sharafaddin, Amgad A. A. Saleh, Younis K. K. Hamad
Article
Entomology
Hafiz Muhammad Saqib Mushtaq, Amgad A. Saleh, Muhammad Kamran, Fahad Jaber Alatawi
Summary: This study used molecular data to identify and confirm the species identity of Oligonychus species, including samples lacking male specimens. Phylogenetic analyses validated the morphological-based classification of the genus Oligonychus. Integrative taxonomic approaches are vital for accurately identifying closely related Oligonychus species.
Article
Entomology
Ali A. Alzabib, Ali S. Al-Sarar, Yasser Abobakr, Amgad A. Saleh
Summary: The house fly is a global public health pest associated with humans and livestock, and the main method of control is the use of insecticides. The extensive use of insecticides has led to the development of resistance in many insect species, including house flies in Saudi Arabia. This study evaluated the resistance of field populations of Musca domestica against pirimiphos-methyl and investigated genetic mutations in the Ace gene associated with resistance. The findings contribute valuable information for house fly management in Saudi Arabia.
