keyword
MENU ▼
Read by QxMD icon Read
search

rust resistance

keyword
https://www.readbyqxmd.com/read/28545258/marker-assisted-molecular-profiling-deletion-mutant-analysis-and-rna-seq-reveal-a-disease-resistance-cluster-associated-with-uromyces-appendiculatus-infection-in-common-bean-phaseolus-vulgaris-l
#1
Antonette R Todd, Nicole Donofrio, Venkateswara R Sripathi, Phillip E McClean, Rian K Lee, Marcial Pastor-Corrales, Venu Kal Kalavacharla
Common bean (Phaseolus vulgaris L.) is an important legume, useful for its high protein and dietary fiber. The fungal pathogen Uromyces appendiculatus (Pers.) Unger can cause major loss in susceptible varieties of the common bean. The Ur-3 locus provides race specific resistance to virulent strains or races of the bean rust pathogen along with Crg, (Complements resistance gene), which is required for Ur-3-mediated rust resistance. In this study, we inoculated two common bean genotypes (resistant "Sierra" and susceptible crg) with rust race 53 of U...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28542459/identification-and-evaluation-of-resistance-to-powdery-mildew-and-yellow-rust-in-a-wheat-mapping-population
#2
Lijun Yang, Xuejiang Zhang, Xu Zhang, Jirui Wang, Mingcheng Luo, Mujun Yang, Hua Wang, Libo Xiang, Fansong Zeng, Dazhao Yu, Daolin Fu, Garry M Rosewarne
Deployment of cultivars with genetic resistance is an effective approach to control the diseases of powdery mildew (PM) and yellow rust (YR). Chinese wheat cultivar XK0106 exhibits high levels of resistance to both diseases, while cultivar E07901 has partial, adult plant resistance (APR). The aim of this study was to map resistance loci derived from the two cultivars and analyze their effects against PM and YR in a range of environments. A doubled haploid population (388 lines) was used to develop a framework map consisting of 117 SSR markers, while a much higher density map using the 90K Illumina iSelect SNP array was produced with a subset of 80 randomly selected lines...
2017: PloS One
https://www.readbyqxmd.com/read/28542451/mapping-genes-for-resistance-to-stripe-rust-in-spring-wheat-landrace-pi-480035
#3
Jinita Sthapit Kandel, Vandhana Krishnan, Derick Jiwan, Xianming Chen, Daniel Z Skinner, Deven R See
Stripe rust caused by Puccinia striiformis Westend. f. sp. tritici Erikks. is an economically important disease of wheat (Triticum aestivum L.). Hexaploid spring wheat landrace PI 480035 was highly resistant to stripe rust in the field in Washington during 2011 and 2012. The objective of this research was to identify quantitative trait loci (QTL) for stripe rust resistance in PI 480035. A spring wheat, "Avocet Susceptible" (AvS), was crossed with PI 480035 to develop a biparental population of 110 recombinant inbred lines (RIL)...
2017: PloS One
https://www.readbyqxmd.com/read/28539970/developing-transgenic-wheat-to-encounter-rusts-and-powdery-mildew-by-overexpressing-barley-chi26-gene-for-fungal-resistance
#4
Hala F Eissa, Sameh E Hassanien, Ahmed M Ramadan, Moustafa M El-Shamy, Osama M Saleh, Ahmed M Shokry, Mohamed Abdelsattar, Yasser B Morsy, Maher A El-Maghraby, Hussien F Alameldin, Sabah M Hassan, Gamal H Osman, Hesham T Mahfouz, Gharib A Gad El-Karim, Magdy A Madkour, Ahmed Bahieldin
BACKGROUND: The main aim of this study was to improve fungal resistance in bread wheat via transgenesis. Transgenic wheat plants harboring barley chitinase (chi26) gene, driven by maize ubi promoter, were obtained using biolistic bombardment, whereas the herbicide resistance gene, bar, driven by the CaMV 35S promoter was used as a selectable marker. RESULTS: Molecular analysis confirmed the integration, copy number, and the level of expression of the chi26 gene in four independent transgenic events...
2017: Plant Methods
https://www.readbyqxmd.com/read/28536568/comparing-the-genetic-diversity-and-antimicrobial-resistance-profiles-of-campylobacter-jejuni-recovered-from-cattle-and-humans
#5
Wonhee Cha, Rebekah E Mosci, Samantha L Wengert, Cristina Venegas Vargas, Steven R Rust, Paul C Bartlett, Daniel L Grooms, Shannon D Manning
Campylobacter jejuni, a leading cause of gastroenteritis in humans, is a foodborne pathogen that can reside in chickens, pigs, and cattle. Because resistance to fluoroquinolones and macrolides, which are commonly used to treat human infections, has emerged in C. jejuni, it is imperative to continously monitor resistance patterns and examine the genetic variation in strains from human infections and animal reservoirs. Our previous study of C. jejuni from human campylobacteriosis cases showed a significantly higher rate of tetracycline resistance compared to national trends, and identified multilocus sequence type (ST)-982 and a history of cattle contact to be associated with tetracycline resistance...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28513283/molecular-characterisation-of-australian-isolates-of-puccinia-graminis-f-sp-tritici-supports-long-term-clonality-but-also-reveals-cryptic-genetic-variation
#6
Jianping Zhang, Peng Zhang, Haydar Karaoglu, Robert F Park
Long term surveys of pathogenicity in Puccinia graminis f. sp. tritici (Pgt) in Australia have implicated mutation as a major source of virulence, at times leading to the demise of stem rust resistant wheat cultivars and substantial yield losses. Since 1925, these surveys have identified at least four occasions on which exotic isolates of Pgt appeared in Australia, with each acting as a founding isolate that gave rise sequentially to derivative pathotypes via presumed single step mutation. The current study aimed to examine the relationship between virulence and molecular patterns using SSR markers on selected isolates of Pgt collected in Australia during a 52 year period in order to propose an evolutionary pathway...
May 17, 2017: Phytopathology
https://www.readbyqxmd.com/read/28504667/rapid-cloning-of-genes-in-hexaploid-wheat-using-cultivar-specific-long-range-chromosome-assembly
#7
Anupriya Kaur Thind, Thomas Wicker, Hana Šimková, Dario Fossati, Odile Moullet, Cécile Brabant, Jan Vrána, Jaroslav Doležel, Simon G Krattinger
Cereal crops such as wheat and maize have large repeat-rich genomes that make cloning of individual genes challenging. Moreover, gene order and gene sequences often differ substantially between cultivars of the same crop species. A major bottleneck for gene cloning in cereals is the generation of high-quality sequence information from a cultivar of interest. In order to accelerate gene cloning from any cropping line, we report 'targeted chromosome-based cloning via long-range assembly' (TACCA). TACCA combines lossless genome-complexity reduction via chromosome flow sorting with Chicago long-range linkage to assemble complex genomes...
May 15, 2017: Nature Biotechnology
https://www.readbyqxmd.com/read/28491075/saturation-mapping-of-a-major-effect-qtl-for-stripe-rust-resistance-on-wheat-chromosome-2b-in-cultivar-napo-63-using-snp-genotyping-arrays
#8
Jianhui Wu, Qilin Wang, Shengjie Liu, Shuo Huang, Jingmei Mu, Qingdong Zeng, Lili Huang, Dejun Han, Zhensheng Kang
Stripe rust or yellow rust (YR), caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most important diseases of wheat (Triticum aestivum L.). Widespread deployment of resistant cultivars is the best means of achieving durable disease control. The red grain, spring wheat cultivar Napo 63 produced by CIMMYT in the 1960s shows a high level of adult-plant resistance to stripe rust in the field. To elucidate the genetic basis of resistance in this cultivar we evaluated 224 F2:3 lines and 175 F2:6 recombinant inbred lines (RILs) derived from a cross between Napo 63 and the Pst-susceptible line Avocet S...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28469008/the-early-response-during-the-interaction-of-fungal-phytopathogen-and-host-plant
#9
REVIEW
Yilin Shen, Na Liu, Chuang Li, Xin Wang, Xiaomeng Xu, Wan Chen, Guozhen Xing, Wenming Zheng
Plants can be infected by a variety of pathogens, most of which can cause severe economic losses. The plants resist the invasion of pathogens via the innate or acquired immune system for surviving biotic stress. The associations between plants and pathogens are sophisticated beyond imaging and the interactions between them can occur at a very early stage after their touching each other. A number of researchers in the past decade have shown that many biochemical events appeared even as early as 5 min after their touching for plant disease resistance response...
May 2017: Open Biology
https://www.readbyqxmd.com/read/28464281/puccinia-striiformis-f-sp-tritici-microrna-like-rna-1-pst-milr1-an-important-pathogenicity-factor-of-pst-impairs-wheat-resistance-to-pst-by-suppressing-the-wheat-pathogenesis-related-2-gene
#10
Bing Wang, Yanfei Sun, Na Song, Mengxin Zhao, Rui Liu, Hao Feng, Xiaojie Wang, Zhensheng Kang
Small RNAs (sRNAs), an important type of pathogenicity factor, contribute to impairing host immune responses. However, little is known about sRNAs in Puccinia striiformis f. sp. tritici (Pst), one of the most destructive pathogens of wheat (Triticum aestivum L.). Here, we report a novel microRNA-like RNA (milRNA) from Pst termed microRNA-like RNA 1 (Pst-milR1), which suppresses wheat defenses during wheat-Pst interactions. We identified Pst-milR1 as a novel milRNA in Pst. Biological prediction and co-transformation showed that Pst-milR1 takes part in cross-kingdom RNA interference (RNAi) events by binding the wheat pathogenesis-related 2 (PR2) gene...
May 2, 2017: New Phytologist
https://www.readbyqxmd.com/read/28456866/basidiospores-of-puccinia-striiformis-f-sp-tritici-succeed-to-infect-barberry-while-urediniospores-are-blocked-by-non-host-resistance
#11
Min Jiao, Chenglong Tan, Long Wang, Jia Guo, Hongchang Zhang, Zhensheng Kang, Jun Guo
Stripe rust (Yellow rust) caused by Puccinia striiformis f. sp. tritici (Pst) is a major disease of wheat worldwide. The use of resistant cultivars to control Pst has been very effective, low-cost, and ecologically sound. However, virulence patterns of Pst can quickly change, which may render resistant cultivars susceptible. The discovery of infection of Berberis spp. by basidiospores of Pst in 2010 raised important concerns about the evolution of new virulent races of the pathogen. Little is known about the infection process of Berberis spp...
April 29, 2017: Protoplasma
https://www.readbyqxmd.com/read/28446912/temporal-and-spatial-variability-of-fungal-structures-and-host-responses-in-an-incompatible-rust-wheat-interaction
#12
Chris K Sørensen, Rodrigo Labouriau, Mogens S Hovmøller
Information about temporal and spatial variability of fungal structures and host responses is scarce in comparison to the vast amount of genetic, biochemical, and physiological studies of host-pathogen interactions. In this study, we used avirulent wild type and virulent mutant isolates of Puccinia striiformis to characterize the interactions in wheat carrying yellow rust Yr2 resistance. Both conventional and advanced microscopic techniques were used for a detailed study of morphology and growth of fungal colonies and associated host cell responses...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28443114/tadir1-2-a-wheat-ortholog-of-lipid-transfer-protein-atdir1-contributes-to-negative-regulation-of-wheat-resistance-against-puccinia-striiformis-f-sp-tritici
#13
Soyed M Ahmed, Peng Liu, Qinghe Xue, Changan Ji, Tuo Qi, Jia Guo, Jun Guo, Zhensheng Kang
Very few LTPs have been shown to act through plasma membrane receptors or to be involved in the hypersensitive response (HR). DIR1, a new type of plant LTP interacts with lipids in vitro, moves to distant tissues during systemic acquired resistance (SAR) and therefore is thought to be involved in long-distance signaling during SAR. However, the exact functions of DIR1 orthologs in cereal species under biotic and abiotic stresses have not been thoroughly defined. In this study, a novel wheat ortholog of the DIR1 gene, TaDIR1-2, was isolated from Suwon11, a Chinese cultivar of wheat and functionally characterized...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28442716/a-puccinia-striiformis-f-sp-tritici-secreted-protein-activates-plant-immunity-at-the-cell-surface
#14
Bayantes Dagvadorj, Ahmet Caglar Ozketen, Ayse Andac, Cian Duggan, Tolga Osman Bozkurt, Mahinur S Akkaya
Pathogens secrete effector proteins to suppress host immunity, mediate nutrient uptake and subsequently enable parasitism. However, on non-adapted hosts, effectors can be detected as non-self by host immune receptors and activate non-host immunity. Nevertheless, the molecular mechanisms of effector triggered non-host resistance remain unknown. Here, we report that a small cysteine-rich protein PstSCR1 from the wheat rust pathogen Puccinia striiformis f. sp. tritici (Pst) activates immunity in the non-host solanaceous model plant Nicotiana benthamiana...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28436149/transgenic-mir156-switchgrass-in-the-field-growth-recalcitrance-and-rust-susceptibility
#15
Holly L Baxter, Mitra Mazarei, Alexandru Dumitrache, Jace Natzke, Miguel Rodriguez, Jiqing Gou, Chunxiang Fu, Robert W Sykes, Geoffrey B Turner, Mark F Davis, Steven Brown, Brian Davison, Zeng-Yu Wang, C Neal Stewart
Sustainable utilization of lignocellulosic perennial grass feedstocks will be enabled by high biomass production and optimized cell wall chemistry for efficient conversion into biofuels. MicroRNAs are regulatory elements that modulate the expression of genes involved in various biological functions in plants, including growth and development. In greenhouse studies, overexpressing a microRNA (miR156) gene in switchgrass had dramatic effects on plant architecture and flowering, which appeared to be driven by transgene expression levels...
April 24, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28430019/characterization-of-rph24-a-gene-conferring-adult-plant-resistance-to-puccinia-hordei-in-barley
#16
Laura A Ziems, Lee T Hickey, Gregory J Platz, Jerome D Franckowiak, Peter M Dracatos, Davinder Singh, Robert F Park
We identified Rph24 as a locus in barley (Hordeum vulgare L.) controlling adult plant resistance (APR) to leaf rust, caused by Puccinia hordei. The locus was previously reported as a quantitative trait locus in barley line ND24260-1 and named qRphND. We crossed ND24260-1 to the leaf-rust-susceptible standard Gus and determined inheritance patterns in the progeny. For the comparative marker frequency analysis (MFA), resistant and susceptible tails of the F2 were genotyped with Diversity Arrays Technology genotyping-by-sequencing (DArT-Seq) markers...
April 21, 2017: Phytopathology
https://www.readbyqxmd.com/read/28424731/identification-of-tify-family-genes-and-analysis-of-their-expression-profiles-in-response-to-phytohormone-treatments-and-melampsora-larici-populina-infection-in-poplar
#17
Wenxiu Xia, Hongyan Yu, Pei Cao, Jie Luo, Nian Wang
The TIFY domain contains approximately 36 conserved amino acids that form the core motif TIF[F/Y]XG, and they were reported to play important roles in plant growth, tissue development and defense regulation. Moreover, more and more evidence has shown that some members of the TIFY gene family perform their functions by modulating plant hormone signaling pathways. Poplar trees are found worldwide, and they comprise approximately 30 species. Benefit from the importance of poplar and its advanced platform, this tree is considered to be the model perennial plant...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28401336/genome-wide-identification-and-characterization-of-nb-arc-resistant-genes-in-wheat-triticum-aestivum-l-and-their-expression-during-leaf-rust-infection
#18
Saket Chandra, Andaleeb Z Kazmi, Zainab Ahmed, Gargi Roychowdhury, Veena Kumari, Manish Kumar, Kunal Mukhopadhyay
NB-ARC domain-containing resistance genes from the wheat genome were identified, characterized and localized on chromosome arms that displayed differential yet positive response during incompatible and compatible leaf rust interactions. Wheat (Triticum aestivum L.) is an important cereal crop; however, its production is affected severely by numerous diseases including rusts. An efficient, cost-effective and ecologically viable approach to control pathogens is through host resistance. In wheat, high numbers of resistance loci are present but only few have been identified and cloned...
April 11, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28398875/vulnerability-of-barley-to-african-pathotypes-of-puccinia-graminis-f-sp-tritici-and-sources-of-resistance
#19
B J Steffenson, A J Case, Z A Pretorius, V Coetzee, F J Kloppers, H Zhou, Y Chai, R Wanyera, G Macharia, S Bhavani, S Grando
The emergence of widely virulent pathotypes (e.g., TTKSK in the Ug99 race group) of the stem rust pathogen (Puccinia graminis f. sp. tritici) in Africa threatens wheat production on a global scale. Although intensive research efforts have been advanced to address this threat in wheat, few studies have been conducted on barley, even though pathotypes such as TTKSK are known to attack the crop. The main objectives of this study were to assess the vulnerability of barley to pathotype TTKSK and identify possible sources of resistance...
May 12, 2017: Phytopathology
https://www.readbyqxmd.com/read/28398164/genetic-differentiation-of-the-wheat-leaf-rust-fungus-puccinia-triticina-in-pakistan-and-genetic-relationship-to-other-worldwide-populations
#20
J A Kolmer, J I Mirza, M Imtiaz, S J A Shah
Collections of Puccinia triticina, the wheat leaf rust pathogen, were obtained from Pakistan in 2008, 2010, 2011, 2013, and 2014. Collections were also obtained from Bhutan in 2013. Single uredinial isolates were derived and tested for virulence phenotype to 20 lines of Thatcher wheat that differ for single leaf rust resistance genes, and for molecular genotype with 23 simple-sequence repeat (SSR) primers. Twenty-four virulence phenotypes were described among the 89 isolates tested for virulence. None of the isolates had virulence to Thatcher lines with Lr9, Lr24, or Lr18...
June 2017: Phytopathology
keyword
keyword
75804
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"