Zahra Mohammadi, Farhad Nazarian-Firouzabadi, Ziba Nazari,
Volume 9, Issue 2 ((Spring and Summer) 2020)
Abstract
Mohammadi Z, Nazarian-Firouzabadi F, Nazari Z (2020). The expression level of genes encoding LysM-RLKs of potato after stimulation with chitin. Plant Pathology Science 9(2):37-50. DOI: 10.2982/PPS.9.2.37.
Introduction: Lysine motif receptor-like kinases (LysM-RLKs) play an important role in the defense reaction of plants to diseases and environmental stresses. This study was conducted to investigate the effect of chitin as a stimulus for the expression of genes that encode LysM-RLKs. Materials and Methods: The expression levels of three genes PGSC0003DMP400010799, PGSC0003DMP400010800 and PGSC0003DMP400061331, which encoded LysM-RLKs due to chitin treatment (150 μg / ml) in young seven-week potato leaves of Jely cultivar, were examined in treated and control leaves. Results: Analysis of the gene expression data showed that the expression of all three genes increased significantly due to the use of chitin compared to the control. Conclusion: Increasing the expression of genes encoding LysM-RLKs using chitin can be effective to induce systemic resistance to plant diseases and environmental stresses.
Samaneh Samavat, Mahdiyeh Salehi Vozhdehnazari, Pegah Sayyad-Amin,
Volume 11, Issue 1 ((Autumn & Winter) 2022)
Abstract
Samavat S, Salehi Vozhdehnazari M, Sayyad-Amin P (2022) Inhibitory effects of essential oils and extracts of medicinal plants on plant pathogenic fungi and bacteria. Plant Pathology Science 11(1):113-121. Doi: 10.2982/PPS.11.1.113.
The use of essential oils and extracts of medicinal plants is one of the environmentally friendly methods in the management of plant diseases caused by fungi and bacteria. The antimicrobial effect of essential oils and extracts of various medicinal plants such as thyme, cloves, savory, garlic, licorice and fennel has been proven and their active ingredient has also been identified. Based on these studies, the possibility of introducing, formulating and using essential oils and extracts of medicinal plants or any of their components with antimicrobial properties, as an alternative method of using chemical toxins in the management of fungal and bacterial diseases of plants can be provided.
Hadis Shahbazi, Alireza Tarang, Fereidoun Padasht, Maryam Hosseini Chaleshtari, Mehrzad Allahgholipour, Maryam Khoshkdaman, Seyyede Akram Mousavi Qale Roudkhani, Sousan Nazari Tabak, Farzaneh Asadollahi Sharifi, Mahnaz Pourabbas,
Volume 11, Issue 1 ((Autumn & Winter) 2022)
Abstract
Shahbazi H, Tarang A, Padasht F, Hosseini Chaleshtari M, Allah-Gholipour M, Khoshkdaman M, Mousavi Qaleh Roudkhani SA, Nazari Tabak S, Asadollahi Sharifi F, Pourabbas Dolatabad M (2022) The reaction of 109 rice lines to blast disease. Plant Pathology Science 11(1):24-35. Doi: 10.2982/PPS.11.1.24.
Introduction: Blast caused by Pyricularia oryzae is the most important fungal disease of rice in the world. The best method of disease management is to identify and cultivate resistant cultivars. Materials and Methods: In this study, the response of 109 promising lines from the Iranian Rice Research Institute along with three control cultivars (susceptible and resistant) to blast disease was evaluated. Seeds of each line were sown in an upland nursery to assess leaf blast in early July. In order to inoculate the desired lines, leaves infected with the blast were collected from different areas of Guilan Province and placed on the surface of the rice blast nursery. In all stages, the necessary humidity to cause disease was provided by sprinkler irrigation. The severity of the disease was rated from zero to nine using the standard method of the International Rice Research Institute. Seedlings were grown in large pots in the greenhouse and inoculated by injection into the panicle neck to assess panicle burst. Results: Seven and 14 lines with grades 2 and 3 showed resistance to leaf blast. Other lines ranged from relatively susceptible to very susceptible to the disease. Three lines TH1, TH2, and TH3 with a degree of contamination of 5 were susceptible to panicle blast disease. Conclusion: Twenty-one known blast-resistant lines can be used in the rice cultivars breeding program.
