دور الميكوريزا في استحثاث مقاومة البندورة الطماطم إزاء الفطر Pythium ultimum من خلال تنشيط إفراز هرمون ميثيل الجاسمونيك
Other Title(s)
Effect of Mycorrhiza in inducing systemic resistance of tomato against Pythium ultimum through activation of methyl Jasmonic hormone
Joint Authors
خريبة، محمد عماد
العظمة، محمد فواز
غزال، إبتسام
شومان، وفاء
Source
Issue
Vol. 34, Issue 3 (31 Dec. 2016), pp.194-201, 8 p.
Publisher
Arab Society for Plant Protection
Publication Date
2016-12-31
Country of Publication
Lebanon
No. of Pages
8
Main Subjects
Topics
Abstract EN
This research aimed to study the impact of arbuscular mycorrhizal fungi (AM) in reducing damping-off disease in tomato through activation of methyl jasmonic hormone responsible for induced systemic resistance (ISR) in the plant.
Eight isolates of the causal organism were purified and identified based on morphological and molecular characteristics.
Results revealed that all the isolates were P.
ultimum.
Mycorrhizae isolates were characterized according to the international classification and confirmed by the Plant Protection Research Institute in Tehran (Iran).
Six mycorrhizal fungal species of the genus Glomus were determined.
Inoculum mixture of the six isolated mycorhiza species was prepared at a concentration of 127 spores/10 g inoculum, using pot culture protocol.
The experiment was conducted under greenhouse conditions with five treatments: (P): Pythium, (M): mycorrhizae, (M+P): Pythium and mycorrhizae at seeding time, (PM): Pythium then adding Mycorrhizae two weeks later, and (MP): mycorrhizae them adding Pythium, two weeks later, in addition to a control treatment (C).
Mycorrhizal fungi showed high efficiency in reducing P.
ultimum incidence and development in tomato seedlings.
Disease severity was significantly reduced by 73.59% in (MP) treatment and by 30.02% in P+M compared with the positive control.
Methyl jasmonic hormone activity was estimated by using high performance liquid chromatography (HPLC).
Results revealed significant increase in the concentration of the methyl jasmonic hormone and the peroxides enzyme in plant seedlings coexist with mycorrhizal fungi alone or in the treatment with mycorrhizae followed by Pythium.
Methyl jasmonic concentration increased 35 days after the M treatment to 3.25 ng/g, and to 5.90 ng/g after MP treatment compared with the 1.36 ng / g in the M+P treatment.
American Psychological Association (APA)
خريبة، محمد عماد وغزال، إبتسام والعظمة، محمد فواز وشومان، وفاء. 2016. دور الميكوريزا في استحثاث مقاومة البندورة الطماطم إزاء الفطر Pythium ultimum من خلال تنشيط إفراز هرمون ميثيل الجاسمونيك. مجلة وقاية النبات العربية،مج. 34، ع. 3، ص ص. 194-201.
https://search.emarefa.net/detail/BIM-762484
Modern Language Association (MLA)
خريبة، محمد عماد....[و آخرون]. دور الميكوريزا في استحثاث مقاومة البندورة الطماطم إزاء الفطر Pythium ultimum من خلال تنشيط إفراز هرمون ميثيل الجاسمونيك. مجلة وقاية النبات العربية مج. 34، ع. 3 (2016)، ص ص. 194-201.
https://search.emarefa.net/detail/BIM-762484
American Medical Association (AMA)
خريبة، محمد عماد وغزال، إبتسام والعظمة، محمد فواز وشومان، وفاء. دور الميكوريزا في استحثاث مقاومة البندورة الطماطم إزاء الفطر Pythium ultimum من خلال تنشيط إفراز هرمون ميثيل الجاسمونيك. مجلة وقاية النبات العربية. 2016. مج. 34، ع. 3، ص ص. 194-201.
https://search.emarefa.net/detail/BIM-762484
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 200-201
Record ID
BIM-762484