نتایج جستجو برای: قارچ utilago hordei
تعداد نتایج: 7417 فیلتر نتایج به سال:
Covered smut of barley (Hordeum vulgare), caused by Ustilago hordei, is a seed-borne disease. To identify and map disease resistance genes, current Canadian barley cultivars, parents of six barley mapping populations, and four differentials namely ‘Hannchen’ (Ruh1), ‘Excelsior’ (Ruh2), ‘Plush’ (Ruh6), and ‘Odessa’ (universal susceptible), were evaluated. Six mated combinations of U. hordei spor...
Sexual compatibility requires self vs. non-self recognition. Genetically, two compatibility or mating-type systems govern recognition in heterothallic basidiomycete fungi such as the edible and woodrotting mushrooms and the economically important rust and smut phytopathogens. A bipolar system is defined by a single genetic locus (MAT) that can have two or multiple alleles. A tetrapolar system h...
Barley powdery mildew, caused by the pathogen Blumeria graminis f. sp. hordei is an important disease of barley (Hordeum vulgare L.). The random amplified polymorphic DNA (RAPD) method was used to detect DNA polymorphism among 7 Pallas near-isogenic lines (NILs) carrying Mla3, Mla12, Mlk, Mlp, Mlat, Mlg and MlLa genes for resistance to B. graminis f. sp. hordei. From among 500 random 10-mer pri...
Purpose: To investigate the phytochemical profile and antihyperplasic effect of ethanol extract of Fructus hordei. G (FHE) on hyperplasia of mammary gland (HMG) in rats. Methods: The Fructus hordei. G extract (FHE) was obtained by a rotary vacuum evaporator. The total flavonoids, total alkaloids and total phenolic compounds in FHE were assayed by aluminum chloride colorimetric method, acid-dye ...
ustilago hordei (pres) lagerh is a fungus that causes covered smut of barley. this disease reduces yield and is a limiting factor in barley fields of iran. one hundred forty four isolates of u. hordei were collected from 36 regions of khuzestan province during 2009 and the genetic diversity of 100 isolates was evaluated by molecular markers. four out of 14 primers were selected on the basis of ...
the total nitrogen content of three barley cultivars: cehada capa (resistant at 25ac), cl 1243 (resistant at 5°c) and rika 1 (susceptible at all temperatures) to puccinia hordei was determined and compared in healthy and infected plants at 5° and 26°c. the results indicate that the total nitrogen content of cv. cehada capa leaves was greater than that of cl 1243 and rika 1 and that of cl 12...
Durable disease resistance genes such as the wheat gene Lr34 are valuable sources of for agricultural breeding programs. encodes an ATP-binding cassette transporter protein involved in transport phytohormone abscisic acid. from is functionally transferable to barley, maize, rice and sorghum. A pleiotropic effect induces development a senescence-like phenotype, referred leaf tip necrosis. We use...
Stripe rust of barley, caused by Puccinia striiformis f. sp. hordei (PSH), occurred mainly in California, Idaho, Oregon, and Washington and caused localized damage to barley crops. Growing cultivars with high-temperature, adult-plant resistance and the cropping system contributed to the low level of stripe rust. Stripe rust samples were collected from the four states and tested under controlled...
Aphid species feeding on lettuce occupy distinct feeding sites: the lettuce aphid Nasonovia ribisnigri prefers to feed on heart leaves, whereas the potato aphid Macrosiphum euphorbiae feeds only on outer leaves. The aphid parasitoid Aphelinus abdominalis, known to be able to regulate M. euphorbiae on many crops, has recently been indicated as a promising biocontrol candidate also for use agains...
Kathryn L. Lunetta, Felix R. Day, Patrick Sulem, Katherine S. Ruth, Joyce Y. Tung, David A. Hinds, Tõnu Esko, Cathy E. Elks, Elisabeth Altmaier, Chunyan He, Jennifer E. Huffman, Evelin Mihailov, Eleonora Porcu, Antonietta Robino, Lynda M. Rose, Ursula M. Schick, Lisette Stolk, Alexander Teumer, Deborah J. Thompson, Michela Traglia, Carol A. Wang, Laura M. Yerges-Armstrong, Antonis C. Antoniou, ...
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