Reaction of Wheat Varieties to Infection by Pythium arrhenomanes or its Toxic Metabolite (s)
محل انتشار: مجله علوم و فناوری کشاورزی، دوره: 2، شماره: 1
سال انتشار: 1378
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 105
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استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JASTMO-2-1_004
تاریخ نمایه سازی: 22 آبان 1402
چکیده مقاله:
Eight wheat varieties some of which were earlier reported to be resistant to Pythium
arrhennmanes, were inoculated with P. arrhenomanes. Inoculation was performed by
placing ۲-day-old seedlings on the edge of a P. arrhenomanes culture on corn meal
agar for ۳ h at ۲۵°C. Infected seedlings were then transferred to test tubes (۹ mm
dia.) containing glass beads and ۱ ml of sterile water, and incubated for ۴ days at
۲۵°O Non-inoculated seedlings were exposed to the toxic metabolite(s) from P.
arrhenomanes by placing them in test tubes containing ۱ ml of a ۲۵-day-old culture
filtrate of P. arrhenomanes. Non-inoculated seedlings grown in test tubes containing
sterile water served as controls. Measurements were taken on root and shoot length,
as well as fresh and dry root and shoot weights. There was an indication that it may
be possible to use the toxic metabolite(s) in screening for resistance to P.
arrhenomanes. Although all of the varieties appeared to be susceptible, there were
some differences among them in their reaction to fungal infection or exposure to the
toxic metabolite(s).
کلیدواژه ها:
نویسندگان
H. Mojdehi
Islamic Azad University, Tehran, Islamic Republic of Iran.
L. L. Singleton
Departement of Plant Pathology, Oklahoma State University, Stillwater, Ok. ۷۴۰۷۸, U.S.A.