Article
Virology
Israel Pagan, Fernando Garcia-Arenal
Summary: Effector-triggered immunity (ETI) is a mechanism in plants to resist virus infections by recognizing viral proteins with specific plant R proteins. However, in some plant-virus interactions, ETI leads to systemic necrosis, spreading PCD and virus multiplication throughout the plant. This study identified an allelic version of RCY1 as the host genetic determinant of systemic necrosis induced by cucumber mosaic virus (CMV) infection in Arabidopsis thaliana.
Article
Agronomy
Mohsen M. Elsharkawy, Mohamed M. Elsawy, Ismail A. Ismail
Summary: The study demonstrated that treatment with Bacillus subtilis subsp. subtilis effectively reduced the severity of Cucumber mosaic virus in cucumber and Arabidopsis, by inducing upregulation of defense genes and enhancing resistance mechanisms against the virus.
PEST MANAGEMENT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Shuo Miao, Chaoqiong Liang, Jianqiang Li, Barbara Baker, Laixin Luo
Summary: CGMMV, a seed-borne virus causing costly diseases in the vegetable trade worldwide, has limited genetic sources for resistance in cucurbits. RNA interference-based technologies, such as amiRNA and syn-tasiRNA, effectively prevented the occurrence and accumulation of CGMMV in cucumber plants, providing a basis for preventing and treating seed-based viral infections.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Horticulture
Roshan Shaalan, Ludmilla Ibrahim, Falah As-sadi, Walid El Kayal
Summary: Plant-endophyte interactions play a crucial role in protecting plants from stresses and pests. Entomopathogenic fungi (EPF) are effective biological control agents. Metabolomics analysis reveals the mechanisms involved in defense against CMV in EPF-treated cucumber plants.
Article
Plant Sciences
Zi-Jie Li, Shu-Ya Tang, Hong-shan Gao, Jin-Yao Ren, Pei-Ling Xu, Wen-Pan Dong, Ying Zheng, Wei Yang, Yi-Yang Yu, Jian-Hua Guo, Yu-Ming Luo, Dong-Dong Niu, Chun-Hao Jiang
Summary: This study reveals that Bacillus cereus AR156 triggers immune response against multiple pathogens by inducing camalexin synthesis, highlighting the significant role of camalexin in this process.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Ya-Juan Shi, Xue Yang, Ling-Ling Yang, Qing-Lun Li, Xiao-Min Liu, Xiao-Yu Han, Qin-Sheng Gu, Hong-Lian Li, Lin-Lin Chen, Yiqing Liu, Yan Shi
Summary: The movement protein and coat protein of cucumber green mottle mosaic virus interact with each other and play critical roles in viral movement and suppression of host defense responses. Specific amino acid residues in the movement protein are necessary for the interaction with the coat protein. This interaction facilitates virus systemic infection by inhibiting the host antiviral defense response.
MOLECULAR PLANT PATHOLOGY
(2023)
Article
Agricultural Engineering
Yue Jiang, Xiaolan Ji, Yueyang Zhang, Xiaoyu Pan, Yizhou Yang, Yiming Li, Wenhui Guo, Yong Wang, Zhiqing Ma, Bin Lei, He Yan, Xili Liu
Summary: Litsea cubeba essential oil (LCO) shows significant anti-TMV activity, with citral as the main active component exhibiting outstanding anti-TMV effect. Citral induces systemic acquired resistance (SAR) through overexpression of defense enzymes and PR proteins, as well as activation of salicylic acid (SA) pathway. It also induces plant resistance against fungal diseases, performing better than the commercial agent chitosan oligosaccharide. Therefore, citral has the potential to be developed as a new botanical-derived antivirus agent and plant immunity activator.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Biology
Anna Slavokhotova, Tatyana Korostyleva, Andrey Shelenkov, Vitalii Pukhalskiy, Irina Korottseva, Marina Slezina, Ekaterina Istomina, Tatyana Odintsova
Summary: Plants have evolved a complex defense system to counteract invading pathogens. Study on cucumber plants infected with cucumber green mottle mosaic virus shows that silencing is suppressed, while salicylic acid and ethylene signaling pathways are induced. Expression of pathogenesis-related proteins and transcription factors also show changes, with WRKY and NAC being the most sensitive to the virus infection among the detected transcription factors.
Article
Plant Sciences
Sugihiro Ando, Michal Jaskiewicz, Sei Mochizuki, Saeko Koseki, Shuhei Miyashita, Hideki Takahashi, Uwe Conrath
Summary: Systemic acquired resistance (SAR) is a broad-spectrum disease resistance response that can be induced by pathogens or chemical treatments like BTH, involving activation of defense genes. In this study, it was found that priming Arabidopsis thaliana with BTH leads to enhanced expression of key components of RNA silencing, particularly AGO2 and AGO3, which may contribute to enhanced resistance to pathogens like cucumber mosaic virus.
MOLECULAR PLANT PATHOLOGY
(2021)
Article
Microbiology
Nuria Montes, Alberto Cobos, Miriam Gil-Valle, Elena Caro, Israel Pagan
Summary: The study identified eight host genes associated with virulence in plant-virus interactions, shedding light on the genetic regulation of virulence and seed transmission of the virus. The results suggest that functions controlling virulence are also crucial for CMV transmission through seeds. This work provides evidence of a novel role for some previously known plant defense genes and for cell wall metabolism in plant virus interactions.
Article
Plant Sciences
Reenu Kumari, Surender Kumar, Diana Leibman, Bekele Abebie, Yulia Shnaider, Shou-Wei Ding, Amit Gal-On
Summary: RDRs play important roles in plant development and resistance to pathogens through mechanisms such as siRNA signal amplification and viral genome methylation. In cucumber, various CsRDR1 genes are induced during virus infection with complex mechanisms involved in antiviral responses.
MOLECULAR PLANT PATHOLOGY
(2021)
Article
Engineering, Environmental
Muhammad Adeel, Tahir Farooq, Jason C. White, Yi Hao, Zifu He, Yukui Rui
Summary: The study demonstrates the protective role of carbon-based nanomaterials in inhibiting viral symptoms by hindering physical movement and viral replication. Plants treated with carbon nanomaterials showed normal phenotype and reduced viral infection symptoms, with photosynthesis comparable to healthy controls. Upregulation of defense-related phytohormones and transcription of genes responsible for phytohormone biosynthesis were also observed in treated plants.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Microbiology
Tharuka Wijesekara, Baojun Xu
Summary: The study examines the intricate relationship between plants and the endophytic fungi inhabiting their tissues. These fungi coexist with plants, forming a symbiotic connection that has potential implications for plant health and growth. The bioactive compounds produced by these fungi hold promise for human health.
Article
Plant Sciences
Elzbieta Paduch-Cichal, Ewa Mirzwa-Mroz, Patrycja Wojciechowska, Katarzyna Baczek, Olga Kosakowska, Zenon Weglarz, Marek Stefan Szyndel
Summary: The study aimed to evaluate the antiviral activity of selected essential oils against Cucumber mosaic virus (CMV) in vitro and in vivo. Greek oregano, thyme, and costmary were used to obtain the essential oils. The dominant compounds in the oils were carvacrol, thymol, and beta-thujone, respectively. Thyme essential oil showed the most promising effects against CMV, but its activity was influenced by the time of application. In vivo, thyme essential oil exhibited protective activity rather than curative activity.
Article
Microbiology
Laura Elvira Gonzalez, Rosa Peiro, Luis Rubio, Luis Galipienso
Summary: STV showed a synergistic effect with CMV or PepMV in co-infections, leading to increased virus titer and plant symptoms. However, an antagonistic interaction was observed between CMV and PepMV in co-infections, which was abolished by the presence of STV in triple-infections, restoring the CMV titer and plant symptoms. The expression of miRNAs and vsiRNAs varied depending on the virus combination, with differential regulation of important functions.
Article
Microbiology
Mohsen Mohamed Elsharkawy, Reda Ibrahim Omara, Yasser Sabry Mostafa, Saad Abdulrahman Alamri, Mohamed Hashem, Sulaiman A. Alrumman, Abdelmonim Ali Ahmad
Summary: The use of chitosan nanoparticles and salicylic acid treatment can significantly reduce the occurrence of wheat leaf rust and improve plant growth. Chitosan nanoparticles treatment leads to abnormalities in Puccinia triticina urediniospores and increased enzyme activities.
Article
Biology
Mohamed Kamal El-Kazzaz, Kamal Elsayed Ghoneim, Mohamed Khaled Mohamed Agha, Asmaa Helmy, Said Behiry, Ahmed Abdelkhalek, Muhammad Hamzah Saleem, Abdulaziz A. Al-Askar, Amr A. Arishi, Mohsen Mohamed Elsharkawy
Summary: This study evaluated the potential of beneficial rhizosphere microorganisms in controlling root rot and wilt diseases in pepper plants. Two isolates, Paenibacillus polymyxa and Trichoderma longibrachiatum, were found to significantly reduce the growth of pathogens in vitro. The use of growth-promoting fungi, P. polymyxa, or T. longibrachiatum resulted in reduced incidence and severity of diseases in pepper plants compared to the control. The expression of defense-related gene CaPR4 was higher in treated plants, indicating systemic resistance to pathogen infections.
Article
Biology
Mohsen Mohamed Elsharkawy, Raghda M. Sakran, Abdelmonim Ali Ahmad, Said Behiry, Ahmed Abdelkhalek, Mohamed M. Hassan, Amr Ahmed Khedr
Summary: Research shows that Pseudomonas spp. can promote rice growth, enhance seed germination, and effectively reduce the incidence of sheath blight disease, offering an environmentally friendly option for rice cultivation.
Article
Agronomy
Aly Derbalah, Tarek Essa, Said Mohamed Kamel, Reda Ibrahim Omara, Mahmoud Abdelfatah, Abdelhamed Elshaer, Mohsen Mohamed Elsharkawy
Summary: This study fabricated silver oxide nanostructures and evaluated their antifungal activity against Macrophomina phaseolina in strawberries. The results showed that silver oxide nanoparticles significantly inhibited the growth of the pathogen and improved the yield of the strawberry crop.
PEST MANAGEMENT SCIENCE
(2022)
Article
Plant Sciences
Mohsen Mohamed Elsharkawy, Ramadan Ahmed Arafa, Reda Ibrahim Omara, Said Mohamed Kamel, Walid Ismail, Sherin Ismail, Aly Derbalah
Summary: The nanostructures of silver oxide and silver oxide-titanium dioxide composite showed significant antifungal activity against P. infestans under laboratory, greenhouse, and field conditions. They also found that these nanoparticles can activate the expression of defensive genes in potato plants, leading to improved growth and productivity.
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2022)
Article
Plant Sciences
Said I. Behiry, Abdulaziz A. Al-Askar, Seham A. Soliman, Fatimah O. Alotibi, Adriana Basile, Ahmed Abdelkhalek, Mohsen Mohamed Elsharkawy, Mohamed Z. M. Salem, Elsayed E. Hafez, Ahmed A. Heflish
Summary: The use of plant extracts as natural substances can reduce the use of synthetic pesticides, enhance plant growth, and reduce disease index. The study found that Plantago lagopus extract can help plants fight off Rhizoctonia solani fungal infection, suggesting it could be a sustainable strategy for managing plant fungal diseases.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Said Behiry, Seham A. Soliman, Al-Naji A. Al-Mansori, Abdulaziz A. Al-Askar, Amr A. Arishi, Mohsen Mohamed Elsharkawy, Ahmed Abdelkhalek, Ahmed A. Heflish
Summary: Chemical pesticides have negative impacts on human health and the environment. Using plant extracts as natural chemicals can increase the efficiency of sustainable food production. This study found that an extract from Chorisia speciosa effectively protected tomato plants against Rhizoctonia solani, improving plant growth parameters and antioxidant enzyme production.
Article
Microbiology
Said M. Kamel, Samah F. Elgobashy, Reda Omara, Aly S. Derbalah, Mahmoud Abdelfatah, Abdelhamed El-Shaer, Abdulaziz A. Al-Askar, Ahmed Abdelkhalek, Kamel A. Abd-Elsalam, Tarek Essa, Muhammad Kamran, Mohsen Mohamed Elsharkawy
Summary: The study shows that copper oxide nanoparticles (Cu(2)ONPs) have antifungal activity against root rot disease in cucumbers and can induce host-plant resistance. Cu(2)ONPs treatment significantly reduces the incidence of root rot disease and improves the growth and yield characteristics of cucumber plants.
Article
Biology
Mohsen Mohamed Elsharkawy, Fatimah O. Alotibi, Abdulaziz A. Al-Askar, Muhammad Adnan, Muhammad Kamran, Ahmed Abdelkhalek, Said Behiry, Muhammad Hamzah Saleem, Abdelmonim Ali Ahmad, Amr Ahmed Khedr
Summary: The study found that treatments with Klebsiella oxytoca and biochar can promote plant growth and induce systemic resistance against Potato Virus Y (PVY), reducing disease severity and PVY concentration.
Article
Plant Sciences
Gamal Farahat, Nagwa Hassan Salama, Ibrahim Soliman Elgamal, Naser Ahmed Ghazy, Mohsen Mohamed Elsharkawy
Summary: This study found that foliar spray with humic acid, vigamax, and potassium phosphate dibasic can effectively reduce the severity of Cercospora leaf spot disease in sugar beet plants, leading to increased yield and induction of PR1 and LOX2 gene expression.
ARCHIVES OF PHYTOPATHOLOGY AND PLANT PROTECTION
(2022)
Article
Plant Sciences
Shameem Raja, Fozia Farhat, Arneeb Tariq, Zaffar Malik, Rana Badar Aziz, Muhamamd Kamran, Mohsen Mohamed Elsharkawy, Asif Ali, Abdulrahman Al-Hashimi, Mohamed S. Elshikh
Summary: The study illustrates the importance of genetic diversity in crops for heavy metal tolerance and productivity under wastewater irrigation.
Article
Biochemistry & Molecular Biology
Mohamed M. Hassan, Bander Albogami, Tarombera Mwabvu, Mohamed F. Awad, Roqayah H. Kadi, Alaa A. Mohamed, Jamal A. Al-Orabi, Montaser M. Hassan, Mohsen Mohamed Elsharkawy
Summary: Klebsiella is a dangerous pathogen found in both humans and animals and is commonly found in the digestive system. This study focused on soil-dwelling invertebrates from different regions of Saudi Arabia and identified Klebsiella pneumoniae isolates using genetic identification methods. The antimicrobial susceptibility, virulence genes, and inhibitory properties of Rhazya stricta leaf extracts against K. pneumoniae strains were also evaluated. The extracts demonstrated strong antibacterial and biofilm inhibitory activities, highlighting their potential for treating or preventing K. pneumoniae infections.
Article
Microbiology
Mohsen M. Elsharkawy, Amr A. Khedr, Farid Mehiar, Elsayed M. El-Kady, Khairiah Mubarak Alwutayd, Said I. Behiry
Summary: This study aims to understand the mechanisms of rhizobacterial colonization of tomato roots and the activation of tomato resistance against Pseudomonas syringae pv. Tomato DC3000 (Pst). Chemotaxis assay and real-time qPCR were used to evaluate the chemotactic response of plant growth-promoting rhizobacteria (PGPR) and the activities of defense enzymes and PR genes. Rhizobacterial isolates play a role in tomato's resistance to Pst through the salicylic acid and jasmonic acid pathways, leading to improved growth and yield traits.
Article
Chemistry, Analytical
Sherien Sobhy, Abdulaziz A. A. Al-Askar, Elsayed E. K. Bakhiet, Mohsen M. M. Elsharkawy, Amr A. A. Arishi, Said L. I. Behiry, Ahmed Abdelkhalek
Summary: Cinnamomum camphora methanolic extract showed antifungal activity against three common phytopathogens. The presence of several bioactive metabolites, including phenolic and flavonoid compounds, could explain its antifungal activity.
Article
Agriculture, Multidisciplinary
E. El-Shafeey, A. A. Aboulila, E. H. Wheish, M. A. Ashmawy, M. M. Elsharkawy
Summary: The study found that thymol and carvacrol have protective effects against stripe rust and can prolong the incubation and latent periods. Moreover, they can induce the up-regulation of defense genes in wheat, enhancing its resistance to stripe rust.
JOURNAL OF ANIMAL AND PLANT SCIENCES-JAPS
(2022)
