scholarly journals White rust species (Chromista, Peronosporomycetes, Albuginales, Albuginaceae) on common weeds in Hungary

2015 ◽  
pp. 30-33
Author(s):  
Tamás Tóth ◽  
György Kövics
Keyword(s):  
Morphological Characters ◽  
Amaranthus Retroflexus ◽  
Rust Disease ◽  
Albugo Candida ◽  
White Rust ◽  
Plant Parasite ◽  
Rust Diseases ◽  
The Family ◽  
Common Purslane

The obligate plant parasite fungi in the family Albuginaceae are responsible for causing white rust diseases on weeds and they are rather common worldwide. Weedy plants with characteristic symptoms have been collected in 2014 and 2015 on location Hajdú-Bihar and Jász-Nagykun-Szolnok counties in Hungary. The determination of the species were based on the morphological characters both pathogens and hosts. Albugo candida was determined on shepherd’s purse (Capsella bursa-pastoris). Common purslane (Portulaca oleracea) is a host for Wilsoniana portulacae. The fungus Wilsonia bliti (syn.: Albugo bliti), the causal agent of white rust disease was found on redroot pigweed (Amaranthus retroflexus).

scholarly journals Screening of Brassica germplasm against Albugo candida (White rust disease) on Brassica species (Rapeseed-mustard)

2016 ◽  
Vol 8 (2) ◽  
pp. 658-662
Author(s):  
K.S. Bisht ◽  
A.K. Tewari ◽  
Pooja Upadhyay
Keyword(s):  
Brassica Species ◽  
Cost Effective ◽  
Yield Potential ◽  
High Yield ◽  
Rust Disease ◽  
Albugo Candida ◽  
White Rust ◽  
Similar Disease ◽  
Breeding Programmes ◽  
Management Approaches

White rust distributed worldwide, caused by Albugo candida (Pers. Ex. Lev.) Kuntze. (A. Cruciferarum S. F. Gray) is one of the major disease responsible in reducing the yield of rapeseed-mustard. Among various management approaches use of resistant varities is consider best, as it is cost effective and environment friendly. However, till now only few resistant sources against the disease has been reported. Therefore, in the present investigation 70 rapeseed-mustard germplasm have been evaluated in field under epiphytotic conditions during 2011-12 and 2012-13 crop seasons. All the germplasms showed similar disease reaction after screening in both the years. Among 70 germplasm, seven germpalsms i.e. DLDC-1, DRMR-100, DRMR-312, EC-339000, GSL-1, NPJ-158 and RH-0644 were found free from the disease with 0% disease severity. These germplasms could be used in breeding programmes for the development of resistant genotypes having high yield potential.

Pathogenic variability of Albugo candida isolates from Punjab causing white rust disease of mustard

2019 ◽  
Vol 34 (1) ◽  
pp. 10
Author(s):  
Gurinder Chhabra ◽  
Prabhjodh Singh Sandhu ◽  
Pankaj Sharma
Keyword(s):  
Rust Disease ◽  
Albugo Candida ◽  
White Rust ◽  
Pathogenic Variability

scholarly journals STUDI KEKERABATAN IKAN FAMILIA CYPRINIDAE YANG TERTANGKAP DI SUNGAI SERAYU KABUPATEN BANYUMAS

2014 ◽  
Vol 1 (2) ◽  
pp. 129
Author(s):  
Dwi Sekar Putri J ◽  
Muh. Nadjmi Abulias ◽  
Dian Bhagawati
Keyword(s):  
Morphological Characteristics ◽  
Morphological Characters ◽  
The Body ◽  
Survey Method ◽  
Fish Diversity ◽  
Sample Collection ◽  
The Family ◽  
Upgma Cluster Analysis ◽  
Almost All

Cyprinidae is a family of freshwater fish that has quite a lot of valuable members and spread almost all over the world. The purpose of this study was to determine the number of fish of the family Cyprinidae in Serayu River and their relationships. This study used survey method with purposive random sampling. Research materials were members of Cyprinidae taken from the River Serayu Banyumas, which was the collection of Mrs. Dian Bhagawati. The sequence of this study included sample collection, sample preservation, sample observation in the laboratory, i.e., identification, determination of morphological characters and species name of fish and their relationships. Observed variables were morphological characters that included body shape, colors, fins specification, the total and standard length of the body, the shape of the lateral line, the shape of the caudal fin, the position of the mouth, body length, the height and width of the caudal peduncle. The data were then computed to get the coefficient of association among species (S), clustered using UPGMA Cluster Analysis as implemented in Numerical Taxonomy System (NTSYS) version 2.02i. The observed data were also descriptively analyzed based on phenogram obtained. The fish diversity recorded were eight species i.e., Puntius orphoides, Barbodes gonionotus, Osteochilus sp., Osteochilus vittatus, Osteochilus hasselti., Labiobarbus leptocheilus, Cyprinus carpio, and Rasbora sp.. The results showed that the closest relationship based on morphological characteristics was between Puntius orphoides and Rasbora sp. which had the greatest association coefficient of 0.8292. The smallest value of the association was followed by P. orphoides and Osteochilus sp. with the value of 0.3000. This study was expected to provide information of Cyprinid fish in Serayu River and their phenetic relationship.

scholarly journals Evolutionary trade-offs at the Arabidopsis WRR4A resistance locus underpin alternate Albugo candida recognition specificities

2021 ◽  
Author(s):  
Baptiste Castel ◽  
Sebastian Fairhead ◽  
Oliver J Furzer ◽  
Amey Redkar ◽  
Shanshan Wang ◽  
...  
Keyword(s):  
Receptor Protein ◽  
Resistance Locus ◽  
Oilseed Crop ◽  
Arabidopsis Accession ◽  
Oilseed Crops ◽  
Albugo Candida ◽  
White Rust ◽  
Plant Parasite ◽  
Trade Offs ◽  
Race 4

The oomycete Albugo candida causes white rust of Brassicaceae, including vegetable and oilseed crops, and wild relatives such as Arabidopsis thaliana. Novel White Rust Resistance (WRR)-genes from Arabidopsis enable new insights into plant/parasite co-evolution. WRR4A from Arabidopsis accession Col-0 provides resistance to many but not all white rust races, and encodes a nucleotide-binding (NB), leucine-rich repeat (LRR) (NLR) immune receptor protein. Col-0 WRR4A resistance is broken by a Col-0-virulent isolate of A. candida race 4 (AcEx1). We identified an allele of WRR4A in Arabidopsis accession Oy-0 and other accessions that confers full resistance to AcEx1. WRR4AOy-0 carries a C-terminal extension required for recognition of AcEx1, but reduces recognition of several effectors recognized by the WRR4A_Col-0 allele. WRR4A_Oy-0 confers full resistance to AcEx1 when expressed as a transgene in the oilseed crop Camelina sativa.

scholarly journals EFFECTIVE MANAGEMENT OF WHITE RUST (ALBUGO CANDIDA) OF RAPESEED THROUGH COMMERCIALLY AVAILABLE FUNGICIDES

2017 ◽  
Vol 29 (2) ◽  
pp. 233
Author(s):  
Muhammad Asif ◽  
Muhammad Atiq ◽  
Shahbaz T. Sahi ◽  
Safdar Ali ◽  
Ahmed Nawaz ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Disease Incidence ◽  
Research Area ◽  
Weekly Interval ◽  
Effective Management ◽  
Yield Losses ◽  
Rust Disease ◽  
Albugo Candida ◽  
White Rust ◽  
Major Threat

Brassica napus (Rapeseed) affected by white rust is a major threat in Pakistan causing 60-90% yield losses. Two susceptible varieties of Brassica napus DGL and Oscar were sown in research area of department of Plant Pathology during 2016-17. Eight commercial fungicides were applied to check their efficacy to manage the white rust disease. Two concentrations (0.25% and 0.50%) of each fungicide were applied on weekly interval with hand sprayer separately on each variety. It was concluded that among all fungicides, Swing 72% (Metalaxyl 8% +Mancozeb 64%) was found most effective in reducing the disease incidence. It reduced the disease incidence effectively upto 24.09% followed by Antracol (Propineb 70%) 34.7%.

Identification and nomenclature of Albugo candida pathotypes of Indian origin causing white rust disease of rapeseed-mustard

2020 ◽  
Vol 158 (4) ◽  
pp. 987-1004
Author(s):  
Devanshu Dev ◽  
A. K. Tewari ◽  
Pooja Upadhyay ◽  
G. R. Daniel
Keyword(s):  
Rust Disease ◽  
Albugo Candida ◽  
White Rust ◽  
Indian Origin

Identification of RFLP markers linked to the white rust resistance gene (Acr) in mustard (Brassica juncea (L.) Czern. and Coss.)

Genome ◽  
1998 ◽  
Vol 41 (4) ◽  
pp. 626-628 ◽  
Author(s):  
W Y Cheung ◽  
R K Gugel ◽  
B S Landry
Keyword(s):  
Brassica Juncea ◽  
Rust Resistance ◽  
Single Gene ◽  
Rapid Identification ◽  
Rflp Markers ◽  
Rust Disease ◽  
Albugo Candida ◽  
White Rust ◽  
Rflp Map ◽  
Race 2

White rust and staghead, caused by Albugo candida, is an economically important disease of Brassica juncea and Brassica rapa crops in western Canada. The identification of genes for white rust resistance in these crops and the development of molecular markers for these genes will allow the rapid identification of resistant germplasm and should accelerate the development of white rust resistant cultivars. In this study, 119 F1-derived doubled-haploid progeny lines of a cross between white rust susceptible (J90-4317) and white rust resistant (J90-2733) B. juncea lines were evaluated for resistance to A. candida race 2. A single gene (Acr) responsible for conferring resistance to this pathogen was mapped on a densely populated B. juncea RFLP map developed earlier. A cosegregating RFLP marker (X140a) and two other closely linked RFLP markers (X42 and X83) were identified; the latter two markers were 2.3 and 4 cM from the Acr locus, respectively. These markers may be useful for marker-assisted selection and map-based cloning of this gene.Key words: Brassica juncea, mustard, Albugo candida, white rust, disease resistance, RFLP.

scholarly journals Disease Assessment Key for White Rust Disease Caused by Albugo candida, in Rapeseed-Mustard

2018 ◽  
Vol 17 (1) ◽  
pp. 11-18
Author(s):  
Khajan Singh Bisht ◽  
Meenakshi Rana ◽  
Pooja Upadhyay ◽  
R.P. Awasthi
Keyword(s):  
Disease Assessment ◽  
Rust Disease ◽  
Albugo Candida ◽  
White Rust
Sign in / Sign up

Export Citation Format

Share Document