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https://www.readbyqxmd.com/read/30342477/comprehensive-transcriptome-analysis-reveals-genes-in-response-to-water-deficit-in-the-leaves-of-saccharum-narenga-nees-ex-steud-hack
#1
Xihui Liu, Ronghua Zhang, Huiping Ou, Yiyun Gui, Jinju Wei, Hui Zhou, Hongwei Tan, Yangrui Li
BACKGROUND: Sugarcane is an important sugar and energy crop that is widely planted in the world. Among the environmental stresses, the water-deficit stress is the most limiting to plant productivity. Some groups have used PCR-based and microarray technologies to investigate the gene expression changes of multiple sugarcane cultivars under water stress. Our knowledge about sugarcane genes in response to water deficit is still poor. RESULTS: A wild sugarcane type, Saccharum narenga, was selected and treated with drought stress for 22 days...
October 20, 2018: BMC Plant Biology
https://www.readbyqxmd.com/read/30342157/alternative-respiratory-chain-enzymes-therapeutic-potential-and-possible-pitfalls
#2
Sina Saari, Geovana S Garcia, Katharina Bremer, Marina M Chioda, Ana Andjelković, Paul V Debes, Mikko Nikinmaa, Marten Szibor, Eric Dufour, Pierre Rustin, Marcos T Oliveira, Howard T Jacobs
The alternative respiratory chain (aRC), comprising the alternative NADH dehydrogenases (NDX) and quinone oxidases (AOX), is found in microbes, fungi and plants, where it buffers stresses arising from restrictions on electron flow in the oxidative phosphorylation system. The aRC enzymes are also found in species belonging to most metazoan phyla, including some chordates and arthropods species, although not in vertebrates or in Drosophila. We postulated that the aRC enzymes might be deployed to alleviate pathological stresses arising from mitochondrial dysfunction in a wide variety of disease states...
October 17, 2018: Biochimica et biophysica acta. Molecular basis of disease
https://www.readbyqxmd.com/read/30341078/genetic-differentiation-associated-with-fumonisin-and-gibberellin-production-in-japanese-fusarium-fujikuroi
#3
Haruhisa Suga, Mitsuhiro Arai, Emi Fukasawa, Keiichi Motohashi, Hiroyuki Nakagawa, Hideaki Tateishi, Shin-Ichi Fuji, Masafumi Shimizu, Koji Kageyama, Mitsuro Hyakumachi
Fusarium fujikuroi is a pathogenic fungus that infects rice. It produces several important mycotoxins such as fumonisins. Fumonisin production has been detected in strains of maize, strawberry, and wheat, whereas it has not been detected in strains from rice seedlings infested with bakanae disease in Japan. We investigated the genetic relationships, pathogenicity, and resistance to a fungicide-thiophanate-methyl (TM)-in 51 fumonisin-producing strains and 44 non-producing strains. Phylogenetic analyses based on amplified fragment length polymorphism (AFLP) markers and two specific genes-combined sequence of translation elongation factor 1α ( TEF1α ) and RNA polymerase II second largest-subunit ( RPB2 )-indicated differential clustering between the fumonisin-producing and non-producing strains...
October 19, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/30337932/the-fight-against-panax-notoginseng-root-rot-disease-using-zingiberaceae-essential-oils-as-potential-weapons
#4
Yan-Jiao Yin, Chuan-Jiao Chen, Shi-Wei Guo, Ke-Ming Li, Yu-Nan Ma, Wu-Mei Sun, Fu-Rong Xu, Yong-Xian Cheng, Xian Dong
The root of Panax notoginseng ( P. notoginseng ) is one of the most highly valuable medicinal herbs in China owing to its pronounced hemostatic and restorative properties. Despite this important fact, growing P. notoginseng is seriously limited by root-rot diseases. In studies aimed at developing a solution to this problem, environment-friendly essential oils (EOs) of five medicinal plants of the family Zingiberaceae were tested for their inhibitory effects on the growth of three main soil pathogens associated with the root-rot diseases of P...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/30337911/melatonin-treatment-inhibits-the-growth-of-xanthomonas-oryzae-pv-oryzae
#5
Xian Chen, Cheng Sun, Pedro Laborda, Yancun Zhao, Ian Palmer, Zheng Qing Fu, Jingping Qiu, Fengquan Liu
Xanthomonas oryzae pv. oryzae ( Xoo ) causes rice bacterial blight (BB), one of the most widespread and destructive diseases in rice-growing regions worldwide. Melatonin enhances pathogen resistance by inducing plant innate immunity, but the direct effect of melatonin on plant pathogenic bacteria is poorly understood. In this study, we investigated the direct effects of melatonin on Xoo . Exogenous melatonin at 200 μg/mL significantly inhibited the proliferation of Xoo and reduced the mRNA expression of five genes involved in cell division...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/30337674/the-dynamic-transcriptome-and-metabolomics-profiling-in-verticillium-dahliae-inoculated-arabidopsis-thaliana
#6
Xiaofeng Su, Guoqing Lu, Huiming Guo, Kaixuan Zhang, Xiaokang Li, Hongmei Cheng
Verticillium wilt caused by the soil-borne fungus Verticillium dahliae is a common, devastating plant vascular disease notorious for causing economic losses. Despite considerable research on plant resistance genes, there has been little progress in modeling the effects of this fungus owing to its complicated pathogenesis. Here, we analyzed the transcriptional and metabolic responses of Arabidopsis thaliana to V. dahliae inoculation by Illumina-based RNA sequencing (RNA-seq) and nuclear magnetic resonance (NMR) spectroscopy...
October 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30337484/association-mapping-transcriptomics-and-transient-expression-identify-candidate-genes-mediating-plant-pathogen-interactions-in-a-tree
#7
Wellington Muchero, Kelsey L Sondreli, Jin-Gui Chen, Breeanna R Urbanowicz, Jin Zhang, Vasanth Singan, Yongil Yang, Robert S Brueggeman, Juan Franco-Coronado, Nivi Abraham, Jeong-Yeh Yang, Kelley W Moremen, Alexandra J Weisberg, Jeff H Chang, Erika Lindquist, Kerrie Barry, Priya Ranjan, Sara Jawdy, Jeremy Schmutz, Gerald A Tuskan, Jared M LeBoldus
Invasive microbes causing diseases such as sudden oak death negatively affect ecosystems and economies around the world. The deployment of resistant genotypes for combating introduced diseases typically relies on breeding programs that can take decades to complete. To demonstrate how this process can be accelerated, we employed a genome-wide association mapping of ca 1,000 resequenced Populus trichocarpa trees individually challenged with Sphaerulina musiva , an invasive fungal pathogen. Among significant associations, three loci associated with resistance were identified and predicted to encode one putative membrane-bound L-type receptor-like kinase and two receptor-like proteins...
October 18, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/30336074/characteristics-of-resistance-to-puccinia-coronata-f-sp-avenae-in-avena-fatua
#8
Edyta Paczos-Grzeda, Sylwia Sowa, Aneta Koroluk, Tim Langdon
Crown rust, caused by Puccinia coronata f. sp. avenae, is the most widespread and harmful fungal disease of oat. The best defense against the pathogen is use of cultivars with genetic resistance, which is effective, economic, and an environmentally friendly alternative to chemical control. However, the continuous evolution of the pathogen can rapidly overcome major gene resistance, creating an urgent need to identify new sources. Wild oat accessions have already proven to be valuable donors of many resistance genes, but the weed species Avena fatua remains underexploited...
October 18, 2018: Plant Disease
https://www.readbyqxmd.com/read/30332488/adult-plant-resistance-in-maize-to-northern-leaf-spot-is-a-feature-of-partial-loss-of-function-alleles-of-hm1
#9
Sandeep R Marla, Kevin Chu, Satya Chintamanani, Dilbag S Multani, Antje Klempien, Alyssa DeLeon, Kim Bong-Suk, Larry D Dunkle, Brian P Dilkes, Gurmukh S Johal
Adult plant resistance (APR) is an enigmatic phenomenon in which resistance genes are ineffective in protecting seedlings from disease but confer robust resistance at maturity. Maize has multiple cases in which genes confer APR to northern leaf spot, a lethal disease caused by Cochliobolus carbonum race 1 (CCR1). The first identified case of APR in maize is encoded by a hypomorphic allele, Hm1A, at the hm1 locus. In contrast, wild-type alleles of hm1 provide complete protection at all developmental stages and in every part of the maize plant...
October 17, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/30332332/yield-loss-associated-with-different-levels-of-stem-rust-resistance-in-bread-wheat
#10
Tegwe Soko, Cornelia M Bender, Renée Prins, Zacharias A Pretorius
Puccinia graminis f. sp. tritici race Ug99 (syn. TTKSK) has been identified as a major threat to wheat production based on its broad virulence. Despite its importance, the effect of Ug99 on different types of resistance in wheat has not been thoroughly researched. In field trials conducted with P. graminis f. sp. tritici race PTKST (Ug99 race group) over 2 years, AUDPC differentiated the moderately susceptible variety SC Stallion (515) and susceptible entries SC Nduna (995) and Line 37-07 (1634) from those with adult plant resistance (APR)...
October 17, 2018: Plant Disease
https://www.readbyqxmd.com/read/30328779/analysis-of-symptom-development-in-relation-to-quantity-of-rice-stripe-virus-in-rice-oryza-sativa-l-to-simplify-evaluation-of-resistance
#11
Mitsuru Okuda, Takuya Shiba, Masahiro Hirae, Akira Masunaka, Minoru Takeshita
Rice stripe virus (RSV) is one of the most devastating pathogens of rice (Oryza sativa L.) in rice growing regions of East Asia. We analyzed the increase in RSV accumulation in infected rice plants over time and evaluated the association between disease severity and RSV accumulation with the aim of establishing an experimental system for accurate and efficient evaluation of RSV resistance in rice. As an index of RSV accumulation in plants, relative concentration of RNA corresponding to the coat protein gene region was measured using reverse transcription-quantitative polymerase chain reaction...
October 17, 2018: Phytopathology
https://www.readbyqxmd.com/read/30327846/detection-and-validation-of-a-novel-major-qtl-for-resistance-to-fusarium-head-blight-from-triticum-aestivum-in-the-terminal-region-of-chromosome-7dl
#12
Junda Ren, Zhen Wang, Ziyi Du, Mingzhe Che, Yibin Zhang, Wei Quan, Yongji Wang, Xu Jiang, Zhongjun Zhang
A novel QTL for FHB resistance was mapped on wheat 7DL, being effective in multiple genetic backgrounds and environments, and comparable to Fhb1 in effect magnitude. Fusarium head blight (FHB) is one of the major fungal diseases affecting wheat production in many countries. The wheat line AQ24788-83 (AQ) possesses FHB resistance. The American wheat cultivar Luke is FHB susceptible. A Luke × AQ population consisting of 1652 advanced recombinant inbred lines (RILs) was developed, from which 272 RILs were randomly sampled and used to construct a linkage map...
October 16, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/30327845/discovering-new-alleles-for-yellow-spot-resistance-in-the-vavilov-wheat-collection
#13
Eric G Dinglasan, Dharmendra Singh, Manisha Shankar, Olga Afanasenko, Greg Platz, Ian D Godwin, Kai P Voss-Fels, Lee T Hickey
GWAS detected 11 yellow spot resistance QTL in the Vavilov wheat collection. Promising adult-plant resistance loci could provide a sustainable genetic solution to yellow spot in modern wheat varieties. Yellow spot, caused by the fungal pathogen Pyrenophora tritici-repentis (Ptr), is the most economically damaging foliar disease of wheat in Australia. Genetic resistance is considered to be the most sustainable means for disease management, yet the genomic regions underpinning resistance to Ptr, particularly adult-plant resistance (APR), remain vastly unknown...
October 16, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/30327844/development-of-tightly-linked-markers-and-identification-of-candidate-genes-for-fusarium-crown-rot-resistance-in-barley-by-exploiting-a-near-isogenic-line-derived-population
#14
Yunfeng Jiang, Ahsan Habib, Zhi Zheng, Meixue Zhou, Yuming Wei, You-Liang Zheng, Chunji Liu
This study demonstrates the feasibility of developing co-segregating markers and identifying candidate genes for Fusarium crown rot resistance in barley based on the generation and exploitation of a near-isogenic line-derived large population. Fusarium crown rot (FCR) is a chronic and severe disease in cereals in semi-arid regions worldwide. Previous studies showed that FCR assessment could be affected by many factors including plant height, growth rate as well as drought stress. Thus, accurate assessment, which is essential for detailed mapping of any locus conferring FCR resistance, is difficult...
October 16, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/30325668/a-case-of-need-linking-traits-to-genebank-accessions
#15
Noelle L Anglin, Ahmed Amri, Zakaria Kehel, Dave Ellis
Genebanks are responsible for collecting, maintaining, characterizing, documenting, and distributing plant genetic resources for research, education, and breeding purposes. The rationale for requests of plant materials varies highly from areas of anthropology, social science, small-holder farmers, the commercial sector, rehabilitation of degraded systems, all the way to crop improvement and basic research. Matching "the right" accessions to a particular request is not always a straightforward process especially when genetic resource collections are large and the user does not already know which accession or even which species they want to study...
October 2018: Biopreservation and Biobanking
https://www.readbyqxmd.com/read/30319677/resistance-of-aegilops-tauschii-%C3%A3-secale-cereale-%C3%A3-triticosecale-hybrids-to-leaf-rust-puccinia-triticina-determined-on-the-macroscopic-and-microscopic-level
#16
Maciej Majka, Albrecht Serfling, Paweł Czembor, Aurelia Ślusarkiewicz-Jarzina, Michał Tomasz Kwiatek, Frank Ordon, Halina Wiśniewska
Leaf rust caused by Puccinia triticina Eriks belongs to the most important fungal pathogens of wheat ( Triticum aestivum L.) and triticale (× Triticosecale ). Effective resistance to leaf rust is both, cost-effective and environmentally safe. Many wild Aegilops species carry unknown resistances against fungal diseases and are characterized by a high genetic variability. The main goal of this work was to examine the resistance of ( Aegilops tauschii × Secale cereale ) × Triticosecale hybrids to leaf rust in inoculation tests with different races of P ...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/30316164/transcriptome-analysis-provides-novel-insights-into-high-soil-moisture-elevated-susceptibility-to-ralstonia-solanacearum-infection-in-ginger-zingiber-officinale-roscoe-cv-southwest
#17
Yusong Jiang, Mengjun Huang, Meixia Zhang, Jianbi Lan, Weixun Wang, Xiang Tao, Yiqing Liu
Ginger (Zingiber officinale Roscoe), one of the most economically valuable plants in the Zingiberaceae family, is widely used as a spice and flavoring agent for beverages, bakery, confectionary, and pharmaceutics. Bacterial wilt disease, caused by Ralstonia solanacearum, is one of the most detrimental production constraints in ginger cultivation. Field cultivation experiments indicated that soil moisture affects the incidence of bacterial wilt disease. However, the relationship between soil moisture and bacterial wilt incidence as well as the mechanism that underlie this infection remain unclear...
October 9, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/30315889/transcriptomic-and-proteomic-analyses-of-mulberry-morus-atropurpurea-fruit-response-to-ciboria-carunculoides
#18
Fanwei Dai, Zhenjiang Wang, Zhiyi Li, Guoqing Luo, Yi Wang, Cuiming Tang
The aim of this work was to gain insights into the molecular mechanisms and dynamics of the mulberry (Morus atropurpurea) fruit response to Ciboria carunculoides infection. A transcriptomic and proteomic study was carried out based on RNA sequencing and isobaric tags for relative and absolute quantification analysis, respectively. These data were then validated using quantitative real-time PCR and multiple reaction monitoring assays. Comparative analyses revealed that 9.0% of the transcriptome and 20.8% of the proteome were differentially regulated after C...
October 10, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/30315865/berberis-orthobotrys-a-promising-herbal-anti-tumorigenic-candidate-for-the-treatment-of-pediatric-alveolar-rhabdomyosarcoma
#19
Anna Adamus, Katharina Peer, Iftikhar Ali, Jan Lisec, Abiodun Falodun, Marcus Frank, Guido Seitz, Nadja Engel
ETHNOPHARMACOLOGICAL RELEVANCE: Berberis orthobotrys (BORM) is a medical plant with a long history in traditional usage for the treatment of wounds, cancer, gastrointestinal malady and several other diseases. Our previous studies identified the endemic Pakistani plant Berberis orthobotrys Bien. ex Aitch. as promising source for the treatment of breast cancer and osteosarcoma. AIM OF THE STUDY: The present study was aimed to evaluate the anti-cancer properties of 26 plant derived extracts and compounds including the methanolic root extract of Berberis orthobotrys (BORM) on pediatric alveolar rhabdomyosarcoma (RMA), which is known to develop drug resistance, metastatic invasion and potential tumor progression...
October 10, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/30315424/genetic-signatures-of-plant-resistance-genes-with-known-function-within-and-between-species
#20
Dan Wang, Yan Sha, Junfeng Hu, Ting Yang, Xue Piao, Xiaohui Zhang
Plant disease resistance (R) genes have undergone significant evolutionary divergence to cope with rapid changes in pathogens. These highly variable evolutionary patterns may have contributed to diversity in R gene protein families or structures. Here, the evolutionary patterns of 76 identified R genes and their homologs were investigated within and between plant species. Results demonstrated that nucleotide binding sites and leucine-rich-repeat genes located in loci with complex evolutionary histories tended to evolve rapidly, have high variation in copy numbers, exhibit high levels of nucleotide variation and frequent gene conversion events, and also exhibit high non-synonymous to synonymous substitution ratios in LRR regions...
October 12, 2018: Genetica
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