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https://www.readbyqxmd.com/read/27414796/transcriptomic-and-expression-analysis-of-the-salivary-glands-in-white-backed-planthoppers-sogatella-furcifera
#1
Zhen Li, Xing-Kui An, Yu-Di Liu, Mao-Lin Hou
The white-backed planthopper (WBPH), Sogatella furcifera (Horváth), is one of the serious rice pests because of its destructive feeding. The salivary glands of the WBPH play an important role in the feeding behaviour. Currently, however, very little is known about the salivary glands at the molecular level. We sequenced the salivary gland transcriptome (sialotranscripome) of adult WBPHs using the Illumina sequencing. A total of 65,595 transcripts and 51,842 unigenes were obtained from salivary glands. According to annotations against the Nr database, many of the unigenes identified were associated with the most studied enzymes in hemipteran saliva...
2016: PloS One
https://www.readbyqxmd.com/read/26508551/finding-new-elicitors-that-induce-resistance-in-rice-to-the-white-backed-planthopper-sogatella-furcifera
#2
Xingrui He, Zhaonan Yu, Shaojie Jiang, Peizhi Zhang, Zhicai Shang, Yonggen Lou, Jun Wu
Herein we report a new way to identify chemical elicitors that induce resistance in rice to herbivores. Using this method, by quantifying the induction of chemicals for GUS activity in a specific screening system that we established previously, 5 candidate elicitors were selected from the 29 designed and synthesized phenoxyalkanoic acid derivatives. Bioassays confirmed that these candidate elicitors could induce plant defense and then repel feeding of white-backed planthopper Sogatella furcifera.
December 1, 2015: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/25735982/differential-antioxidant-defense-and-detoxification-mechanisms-in-photodynamically-stressed-rice-plants-treated-with-the-deregulators-of-porphyrin-biosynthesis-5-aminolevulinic-acid-and-oxyfluorfen
#3
Thu-Ha Phung, Sunyo Jung
This study focuses on differential molecular mechanisms of antioxidant and detoxification systems in rice plants under two different types of photodynamic stress imposed by porphyrin deregulators, 5-aminolevulinic acid (ALA) and oxyfluorfen (OF). The ALA-treated plants with white necrosis exhibited a greater decrease in photochemical quantum efficiency, Fv/Fm, as well as a greater increase in activity of superoxide dismutase, compared to the OF-treated plants. By contrast, the brown necrosis in OF-treated plants resulted in not only more widely dispersed H2O2 production and greater increases in H2O2-decomposing enzymes, catalase and peroxidase, but also lower ascorbate redox state...
April 3, 2015: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/24380617/hematological-and-histopathological-changes-in-silver-catfish-rhamdia-quelen-siluriformes-exposed-to-clomazone-herbicide-in-the-madre-river-santa-catarina-state-southern-brazil
#4
Aline Brum, Geovana Dotta, Katina Roumbedakis, Eduardo L T Gonçalves, Laura P Garcia, Patrícia Garcia, Vildes M Scussel, Maurício L Martins
This study evaluated the influence of the clomazone herbicide (2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone) contamination on the hematological parameters and histological changes in gills and liver of silver catfish (Rhamdia quelen) from Madre River, Santa Catarina State, Southern Brazil. Fish were collected between March 2010 and January 2012 at two different sites of the Madre River, one site receiving residual water (contaminated site) from rice culture (n=49) and another that do not receive residual water (reference site) (n=48)...
2014: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/23755297/molecular-characterization-and-functions-of-fatty-acid-and-retinoid-binding-protein-gene-ab-far-1-in-aphelenchoides-besseyi
#5
Xi Cheng, Yu Xiang, Hui Xie, Chun-Ling Xu, Teng-Fei Xie, Chao Zhang, Yu Li
Rice white tip nematode, Aphelenchoides besseyi, is a kind of plant parasitic nematodes that cause serious losses in rice and many other crops. Fatty acid and retinoid binding protein (FAR) is a specific protein in nematodes and is related to development, reproduction, infection to the host, and disruption of plant defense reactions, so the inhibition of FAR function is the potential approach to control A. besseyi. The full-length of Ab-far-1 cDNA is 805 bp, including 546 bp of ORF that encodes 181 amino acids...
2013: PloS One
https://www.readbyqxmd.com/read/22575783/acute-care-pediatric-nurse-practitioner-a-practice-analysis-study
#6
MULTICENTER STUDY
Karin Reuter-Rice
INTRODUCTION: It is the responsibility of certification organizations to provide psychometrically sound and legally defensible examinations. Practice research serves as the certification framework for validating advanced practice roles and updating national qualifying examinations. This national study describes the practice of the acute care pediatric nurse practitioner (ACPNP) since the inception of the certified pediatric nurse practitioner-acute care (CPNP-AC) examination in 2005. METHOD: A descriptive analysis of the 2009 practice survey of U...
November 2013: Journal of Pediatric Health Care
https://www.readbyqxmd.com/read/22388489/loss-of-cellulose-synthase-like-f6-function-affects-mixed-linkage-glucan-deposition-cell-wall-mechanical-properties-and-defense-responses-in-vegetative-tissues-of-rice
#7
Miguel E Vega-Sánchez, Yves Verhertbruggen, Ulla Christensen, Xuewei Chen, Vaishali Sharma, Patanjali Varanasi, Stephen A Jobling, Mark Talbot, Rosemary G White, Michael Joo, Seema Singh, Manfred Auer, Henrik V Scheller, Pamela C Ronald
Mixed-linkage glucan (MLG) is a cell wall polysaccharide containing a backbone of unbranched (1,3)- and (1,4)-linked β-glucosyl residues. Based on its occurrence in plants and chemical characteristics, MLG has primarily been associated with the regulation of cell wall expansion due to its high and transient accumulation in young, expanding tissues. The Cellulose synthase-like F (CslF) subfamily of glycosyltransferases has previously been implicated in mediating the biosynthesis of this polymer. We confirmed that the rice (Oryza sativa) CslF6 gene mediates the biosynthesis of MLG by overexpressing it in Nicotiana benthamiana...
May 2012: Plant Physiology
https://www.readbyqxmd.com/read/21878570/linkage-specificity-and-role-of-properdin-in-activation-of-the-alternative-complement-pathway-by-fungal-glycans
#8
Sarika Agarwal, Charles A Specht, Huang Haibin, Gary R Ostroff, Sanjay Ram, Peter A Rice, Stuart M Levitz
UNLABELLED: Fungal cell walls are predominantly composed of glucans, mannans, and chitin. Recognition of these glycans by the innate immune system is a critical component of host defenses against the mycoses. Complement, an important arm of innate immunity, plays a significant role in fungal pathogenesis, especially the alternative pathway (AP). Here we determine that the glycan monosaccharide composition and glycosidic linkages affect AP activation and C3 deposition. Furthermore, properdin, a positive regulator of the AP, contributes to these functions...
2011: MBio
https://www.readbyqxmd.com/read/19132074/identification-and-characterization-of-the-wrky-transcription-factor-family-in-pinus-monticola
#9
Jun-Jun Liu, Abul K M Ekramoddoullah
The WRKY gene family represents an ancient and highly complex group of transcription factors involved in signal transduction pathways of numerous plant developmental processes and host defense response. Up to now, most WRKY proteins have been identified in a few angiosperm species. Identification of WRKY genes in a conifer species would facilitate a comprehensive understanding of the evolutionary and function-adaptive process of this superfamily in plants. We performed PCR on genomic DNA to clone WRKY sequences from western white pine (Pinus monticola), one of the most valuable conifer species endangered by white pine blister rust (Cronartium ribicola)...
January 2009: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/18854048/a-conifer-genomics-resource-of-200-000-spruce-picea-spp-ests-and-6-464-high-quality-sequence-finished-full-length-cdnas-for-sitka-spruce-picea-sitchensis
#10
COMPARATIVE STUDY
Steven G Ralph, Hye Jung E Chun, Natalia Kolosova, Dawn Cooper, Claire Oddy, Carol E Ritland, Robert Kirkpatrick, Richard Moore, Sarah Barber, Robert A Holt, Steven J M Jones, Marco A Marra, Carl J Douglas, Kermit Ritland, Jörg Bohlmann
BACKGROUND: Members of the pine family (Pinaceae), especially species of spruce (Picea spp.) and pine (Pinus spp.), dominate many of the world's temperate and boreal forests. These conifer forests are of critical importance for global ecosystem stability and biodiversity. They also provide the majority of the world's wood and fiber supply and serve as a renewable resource for other industrial biomaterials. In contrast to angiosperms, functional and comparative genomics research on conifers, or other gymnosperms, is limited by the lack of a relevant reference genome sequence...
2008: BMC Genomics
https://www.readbyqxmd.com/read/17892258/fungal-stressed-germination-of-black-soybeans-leads-to-generation-of-oxooctadecadienoic-acids-in-addition-to-glyceollins
#11
Shengbao Feng, Chin Lee Saw, Yuan Kun Lee, Dejian Huang
Microbial-stressed germination of black soybeans leads to generation of a group of oxylipins, oxooctadecadienoic acids (KODEs, including 13- Z, E-KODE, 13- E, E-KODE, 9- E, Z-KODE, and 9- E, E-KODE), and their respective glyceryl esters in addition to glyceollins, a known phytoalexins present in wild and fungi-infected soybeans. Four fungi, Aspergillus niger, Aspergillus oryzae, Rhizopus oligosporus, and white rice yeast ( Aspergillus niger wry), were applied to compare their efficiency on inducing these compounds during black soybean germination...
October 17, 2007: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/17378427/the-repression-of-cell-wall-and-plastid-related-genes-and-the-induction-of-defense-related-genes-in-rice-plants-infected-with-rice-dwarf-virus
#12
Takumi Shimizu, Kouji Satoh, Shoshi Kikuchi, Toshihiro Omura
An analysis, using microarrays, of gene expression in rice plants infected with Rice dwarf virus revealed significant decreases in levels of expression of genes that are involved in the formation of cell walls, reflecting the stunted growth of diseased plants. The expression of plastid-related genes also was suppressed, as anticipated from the white chlorotic appearance of infected leaves. By contrast, the expression of defense- and stress-related genes was enhanced after viral infection. These results suggest that virus-infected rice plants attempt to survive viral infection and replication by raising the levels of expression of defense- and stress-related genes while suppressing the expression of genes required for the elongation of cells and photosynthesis...
March 2007: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/16570654/inhibition-of-resistance-gene-mediated-defense-in-rice-by-xanthomonas-oryzae-pv-oryzicola
#13
Seiko Makino, Akiko Sugio, Frank White, Adam J Bogdanove
Xanthomonas oryzae pv. oryzae and the closely related X. oryzae pv. oryzicola cause bacterial blight and bacterial leaf streak of rice, respectively. Although many rice resistance (R) genes and some corresponding avirulence (avr) genes have been characterized for bacterial blight, no endogenous avr/R gene interactions have been identified for leaf streak. Genes avrXa7 and avrXa10 from X. oryzae pv. oryzae failed to elicit the plant defense-associated hypersensitive reaction (HR) and failed to prevent development of leaf streak in rice cultivars with the corresponding R genes after introduction into X...
March 2006: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/11865865/plants-plant-pathogens-and-microgravity-a-deadly-trio
#14
REVIEW
J E Leach, M Ryba-White, Q Sun, C J Wu, E Hilaire, C Gartner, O Nedukha, E Kordyum, M Keck, H Leung, J A Guikema
Plants grown in spaceflight conditions are more susceptible to colonization by plant pathogens. The underlying causes for this enhanced susceptibility are not known. Possibly the formation of structural barriers and the activation of plant defense response components are impaired in spaceflight conditions. Either condition would result from altered gene expression of the plant. Because of the tools available, past studies focused on a few physiological responses or biochemical pathways. With recent advances in genomics research, new tools, including microarray technologies, are available to examine the global impact of growth in the spacecraft on the plant's gene expression profile...
June 2001: Gravitational and Space Biology Bulletin
https://www.readbyqxmd.com/read/10931960/the-virulence-factor-avrxa7-of-xanthomonas-oryzae-pv-oryzae-is-a-type-iii-secretion-pathway-dependent-nuclear-localized-double-stranded-dna-binding-protein
#15
B Yang, W Zhu, L B Johnson, F F White
AvrXa7 is a member of the avrBs3 avirulence gene family, which encodes proteins targeted to plant cells by a type III secretion apparatus. AvrXa7, the product of avrXa7, is also a virulence factor in strain PXO86 of Xanthomonas oryzae pv. oryzae. Avirulence and virulence specificities are associated with the central repeat domain, which, in avrXa7, consists of 25.5 direct repeat units. Mutations in three C-terminal nuclear localization signal motifs eliminated avirulence and virulence activities in rice and severely reduced nuclear localization in a yeast assay system...
August 15, 2000: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/9304860/differential-induction-of-a-peroxidase-gene-family-during-infection-of-rice-by-xanthomonas-oryzae-pv-oryzae
#16
J M Chittoor, J E Leach, F F White
Induction of peroxidase has been correlated with resistant interactions between rice and Xanthomonas oryzae pv. oryzae. To assist in analysis of the role of rice peroxidases in plant defense against the bacterial pathogen, three peroxidase genes, POX22.3, POX8.1, and POX5.1, were identified from a rice cDNA library that was constructed from leaves of plants undergoing a resistant reaction. These genes were highly similar in nucleic acid and amino acid sequences and belonged to a gene family. The three genes showed differential expression in infiltrated rice leaves during pathogen interactions and mechanical stress...
September 1997: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/7891107/high-levels-of-ascorbic-acid-not-glutathione-in-the-cns-of-anoxia-tolerant-reptiles-contrasted-with-levels-in-anoxia-intolerant-species
#17
M E Rice, E J Lee, Y Choy
Ascorbic acid and glutathione (GSH) are antioxidants and free radical scavengers that provide the first line of defense against oxidative damage in the CNS. Using HPLC with electrochemical detection, we determined tissue contents of these antioxidants in brain and spinal cord in species with varying abilities to tolerate anoxia, including anoxia-tolerant pond and box turtles, moderately tolerant garter snakes, anoxia-intolerant clawed frogs (Xenopus laevis), and intolerant Long-Evans hooded rats. These data were compared with ascorbate and GSH levels in selected regions of guinea pig CNS, human cortex, and values from the literature...
April 1995: Journal of Neurochemistry
https://www.readbyqxmd.com/read/2008654/transient-inhibition-of-neutrophil-adherence-with-the-anti-cd18-monoclonal-antibody-60-3-does-not-increase-mortality-rates-in-abdominal-sepsis
#18
W J Mileski, R K Winn, J M Harlan, C L Rice
Monoclonal antibodies (MAbs) that recognize the neutrophil (PMN) adherence complex CD11/CD18 inhibit PMN adherence to endothelium and attenuate PMN-mediated ischemia-reperfusion injury. One consideration regarding the clinical usefulness of such therapy is whether transient inhibition of PMN adherence or function will impede host defense and increase susceptibility to infection and sepsis. We studied susceptibility to sepsis in New Zealand white rabbits with an appendiceal devascularization model to answer the question: Does inhibition of PMN adherence with the anti-CD18 MAb 60...
April 1991: Surgery
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