نتایج جستجو برای: rust

تعداد نتایج: 5929  

2017
Erin L. Landguth Zachary A. Holden Mary F. Mahalovich Samuel A. Cushman

Recent population declines to the high elevation western North America foundation species whitebark pine, have been driven by the synergistic effects of the invasive blister rust pathogen, mountain pine beetle (MPB), fire exclusion, and climate change. This has led to consideration for listing whitebark pine (WBP) as a threatened or endangered species under the Endangered Species Act, which has...

Journal: :The New phytologist 2016
Alistair R McTaggart Roger G Shivas Magriet A van der Nest Jolanda Roux Brenda D Wingfield Michael J Wingfield

The aim of this study was to determine the evolutionary time line for rust fungi and date key speciation events using a molecular clock. Evidence is provided that supports a contemporary view for a recent origin of rust fungi, with a common ancestor on a flowering plant. Divergence times for > 20 genera of rust fungi were studied with Bayesian evolutionary analyses. A relaxed molecular clock wa...

Journal: :پژوهش های تولید گیاهی 0

puccinia recondite (leaf rust) is an endemic disease in iran; this disease can affect the productivity and quality of wheat, that occurring in all wheat growing regions. genetic resistance to leaf rust of wheat is the most important strategy to control the diseases and 51 leaf rust resistance genes (lr gene) are reported in wheat to provide resistance to leaf rust. this study aims to identify p...

Journal: :Phytopathology 2009
Anatoliy V Lygin Shuxian Li Ramya Vittal Jack M Widholm Glen L Hartman Vera V Lozovaya

ABSTRACT Understanding the metabolic responses of the plant to a devastating foliar disease, soybean rust, caused by Phakopsora pachyrhizi, will assist in development of cultivars resistant to soybean rust. In this study, differences in phenolic metabolism were analyzed between inoculated and noninoculated plants using two susceptible and three resistant soybean genotypes with known resistance ...

Journal: :Phytopathology 2007
Richard M Johnson Michael P Grisham Edward P Richard

ABSTRACT The extent of spatial and temporal variability of sugarcane rust (Puccinia melanocephala) infestation was related to variation in soil properties in five commercial fields of sugarcane (interspecific hybrids of Saccharum spp., cv. LCP 85-384) in southern Louisiana. Sugarcane fields were grid-soil sampled at several intensities and rust ratings were collected at each point over 6 to 7 w...

2010
S. M. Damadi M. H. Pei J. A. Smith M. Abbasi

A rust fungus was found causing stem cankers on 1to 5-year-old stems of Salix elbursensis in the north west of Iran. The rust also forms uredinia on leaves and flowers of the host willow. Light and scanning electron microscopy revealed that the new rust is morphologically distinct from several Melampsora species occurring on the willows taxonomically close to S. elbursensis, but indistinguishab...

Journal: :Phytopathology 2010
Yue Jin Les J Szabo Martin Carson

The life history of Puccinia striiformis remains a mystery because the alternate host has never been identified. Inoculation of grasses using aeciospores from naturally infected Berberis chinensis and B. koreana resulted in infection on Poa pratensis, producing uredinia typical of stripe rust caused by P. striiformis. Analyses using real-time polymerase chain reaction and DNA sequence confirmed...

2007
John Rust Ian Bennun Michael Crowe Susan Golombok JOHN RUST IAN BENNUN SUSAN GOLOMBOK

The Golombok Rust Inventory of Marital State (GRIMS) is a new short (28 item) questionnaire for the assessment of the quality of a relationship. The GRIMS is a companion test to the Golombok Rust Inventory of Sexual Satisfaction (GRISS) which is in use in sex therapy and sexual dysfunction clinics and research. Its development and construction are described, together with details of item analys...

2018
Amira M. I. Mourad Ahmed Sallam Vikas Belamkar Stephen Wegulo Robert Bowden Yue Jin Ezzat Mahdy Bahy Bakheit Atif A. El-Wafaa Jesse Poland Peter S. Baenziger

Citation: Mourad AMI, Sallam A, Belamkar V, Wegulo S, Bowden R, Jin Y, Mahdy E, Bakheit B, El-Wafaa AA, Poland J and Baenziger PS (2018) Genome-Wide Association Study for Identification and Validation of Novel SNP Markers for Sr6 Stem Rust Resistance Gene in Bread Wheat. Front. Plant Sci. 9:380. doi: 10.3389/fpls.2018.00380 Genome-Wide Association Study for Identification and Validation of Nove...

2013
Sarada Rao A. Yashodhara Rao Appajosula S. Rao

--------------------------------------------------------------Abstract-----------------------------------------------------------In order to evaluate the adaptability of hydroxyethane diphosphonic acid (HEDPA) as an environmentally benign alternative rust removal agent, the present investigation was undertaken. The effectiveness of HEDPA was studied as a function of acid concentration in the ra...

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