identification and pathogenicity of pythium species on cantaloupe in khorasan razavi province of iran

نویسندگان

samaneh teymoori

mohammad hajian shahri

kamran rahnama

hamid afzali

چکیده

in order to study the role of pythium species associated with cantaloupe root and crown rot, samples were collected from infected fields in different areas of khorasan razavi province during 2009-2010. the root pieces were washed and cultured on cma-parp medium. the pythium isolates were then purified by hyphal tip method and identified based on van der plaats-niterink mycological key. the pathogenic species were identified as pythium aphanidermatum, p. ultimum var. ultimum, and p. deliense. the pathogenicity of isolates on cantaloupe seedlings was tested under greenhouse conditions by using wheat grain inoculum. the results indicated that p. aphanidermatum was the most prevalent species and was recovered in all the regions. p. ultimum was isolated from neyshabour, fariman and mashhad whereas p. deliense was detected in khaaf. this to our knowledge, is the first report on occurrence and distribution of pythium species causing root and stem rot on cantaloupes in khorasan province.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ِidentification of pythium spp. and their pathogenicity on cucurbits in khorasan-razavi province

abstract the pythium spp. are known as the principle agents of seedling blight, damping-off and root rot of cucurbits. this study was performed for determination of pythium species involved in this diseases as well study their pathogenecity on different cucurbits. the numerous samples were taken at cultivation seasons 2006- 2007 from the fields of cucumber, tomato, egg plant, muskmelon, cucurbi...

متن کامل

Motorcycle Fatal Accidents in Khorasan Razavi Province, Iran

BACKGROUND All over the world motorcycle accident are one of the major causes of road death and injury. This study aimed to determine the pattern of Motorcycle Fatal Accidents in Mashhad-Iran. METHODS This descriptive cross-sectional study was carried out in 2006 to analyze the epidemiological pattern of the motorcycle accident in Mashhad, North-Eastern Iran. Three hundred fifty cases of moto...

متن کامل

Identification and Characterization of Dust Source in Khorasan Razavi Province

Background and Amis: One of the phenomena in arid and semi-arid regions is dust storm. Dust is one of the environmental issues that affect the quality and pollution of the air, human health, soil fertility, visibility, economy, and many social and environmental aspects of the community. The present research has been carried out to identify and characterize the areas of dust source in Khorasan...

متن کامل

Isolation and Genotyping of Toxoplasma gondii Strains in Ovine Aborted Fetuses in Khorasan Razavi Province, Iran

Toxoplasmosis is an important zoonotic disease that can cause abortion in humans and animals. The aim of this study was isolation and subsequent genotyping of Toxoplasma gondii isolates in ovine aborted fetuses. During 2012-2013, 39 ovine aborted fetuses were collected from sheep flocks in Khorasan Razavi Province, Iran. The brain samples were screened for detection of the parasite DNA by neste...

متن کامل

Detection of Echinococcus multilocularis in Carnivores in Razavi Khorasan Province, Iran Using Mitochondrial DNA

BACKGROUND Echinococcus multilocularis is the source of alveolar echinococcosis, a potentially fatal zoonotic disease. This investigation assessed the presence of E. multilocularis infection in definitive hosts in the Chenaran region of Razavi Khorasan Province, northeastern Iran. METHODOLOGY/PRINCIPAL FINDINGS Fecal samples from 77 domestic and stray dogs and 14 wild carnivores were examined...

متن کامل

Serological study of small ruminant lentiviruses in sheep population of Khorasan-e-Razavi province in Iran

Maedi-Visna (MV) virus and caprine arthritis encephalitis (CAE) virus known as small ruminant lentiviruses (SRLVs) cause chronic diseases in susceptible animals. The main reservoirs of these viral agents are sheep and goat. In sheep, MV virus causes a disease as the same name of the virus. This is the first seroprevalence survey of SRLVs in sheep population of Khorasan-e-Razavi province in Iran...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
journal of crop protection

ناشر: tarbiat modares university

ISSN 2251-9041

دوره 1

شماره 3 2012

کلمات کلیدی

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023