Relevant bibliographies by topics / Host resistance in plants

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Host resistance in plants'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Host resistance in plants"

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Dixon, G. R. "Interactions of soil nutrient environment, pathogenesis and host resistance." Plant Protection Science 38, SI 1 - 6th Conf EFPP 2002 (January 1, 2002): S87—S94. http://dx.doi.org/10.17221/10326-pps.

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Host plants and soil borne pathogens that attack them exist within an ecological matrix populated by numerous microbial species that may influence the access of pathogenesis. These events are moderated by physical and chemical components of the soil. The impact of inorganic and organic nutrients on pathogenesis and the development of host resistance are discussed in this review using two host – pathogen combinations as examples. Calcium, boron, nitrogen and pH have been demonstrated to affect the processes of resting spore germination, host invasion and colonisation in the Plasmodiophora brassicae-Brassica combination that results in clubroot disease. Organic nutrients that have associated biostimulant properties have been demonstrated to influence the development of Pythium ultimum-Brassica combination that results in damping-off disease. This latter combination is affected by the presence of antagonistic microbial flora as demonstrated by increased ATP, extra-cellular enzyme and siderophore production. In both examples there are indications of the manner by which host resistance to pathogenesis may be enhanced by changes to the nutrient status surrounding host plants. These effects are discussed in relation to the development of integrated control strategies that permit disease control with minimal environmental impact.
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Gammelgård, E., M. L. Mohan, R. A. Andersson, and J. P. T. Valkonen. "Host gene expression at an early stage of virus resistance induction." Plant Protection Science 38, SI 2 - 6th Conf EFPP 2002 (December 31, 2017): 502–3. http://dx.doi.org/10.17221/10535-pps.

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Suppression subtractive hybridization (SSH) was carried out to detect genes differentially expressed in plants expressing resistance to systemic infection with Potato virus A (PVA), genus Potyvirus. Differential screening has up to now revealed 19 putative differentially expressed genes. Nothern blot hybridization has confirmed the differential expression of seven genes. Three of them were only induced by the virus, but four genes were also wound-induced.
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Pink, D. A. C., and P. Hand. "Plant resistance and strategies for breeding resistant varieties." Plant Protection Science 38, SI 1 - 6th Conf EFPP 2002 (January 1, 2002): S9—S14. http://dx.doi.org/10.17221/10310-pps.

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An explanation of the ‘boom-bust’ cycle of resistance breeding was provided by the gene-for-gene relationship between a pathogen and its host. Despite this understanding, most R genes continued to be deployed singly and resistance has been ephemeral. The reasons for breeding ‘single R gene’ varieties are discussed. Alternative strategies for the deployment of R genes and the use of quantitative race non-specific resistance have been advocated in order to obtain durable resistance. The feasibility of both of these approaches is discussed taking into account the impact of technologies such as plant transformation and marker-assisted selection. A change in focus from durability of the plant phenotype to that of the crop phenotype is advocated.
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Gill, Upinder S., Seonghee Lee, and Kirankumar S. Mysore. "Host Versus Nonhost Resistance: Distinct Wars with Similar Arsenals." Phytopathology® 105, no. 5 (May 2015): 580–87. http://dx.doi.org/10.1094/phyto-11-14-0298-rvw.

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Plants face several challenges by bacterial, fungal, oomycete, and viral pathogens during their life cycle. In order to defend against these biotic stresses, plants possess a dynamic, innate, natural immune system that efficiently detects potential pathogens and initiates a resistance response in the form of basal resistance and/or resistance (R)-gene-mediated defense, which is often associated with a hypersensitive response. Depending upon the nature of plant–pathogen interactions, plants generally have two main defense mechanisms, host resistance and nonhost resistance. Host resistance is generally controlled by single R genes and less durable compared with nonhost resistance. In contrast, nonhost resistance is believed to be a multi-gene trait and more durable. In this review, we describe the mechanisms of host and nonhost resistance against fungal and bacterial plant pathogens. In addition, we also attempt to compare host and nonhost resistance responses to identify similarities and differences, and their practical applications in crop improvement.
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Hafez, Yaser M. "A Pivotal Role of Reactive Oxygen Species in Non-Host Resistance Mechanisms in Legume and Cereal Plants to the Incompatible Pathogens." International Journal of Phytopathology 4, no. 1 (May 2, 2015): 43–53. http://dx.doi.org/10.33687/phytopath.004.01.1176.

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Most of plants under normal conditions are resistant to most of the incompatible pathogens (viral, fungal and bacterial infections). This is called ״non-host resistance (NHR) phenomenon״. Till now it is not clear the non-host resistance mechanisms. As a result of inoculation of legume (pea and soybean) and cereal (barley and wheat) plants with compatible and incompatible pathogens, strong resistance symptoms were observed in the non-host/incompatible pathogen combinations as compared with host/compatible pathogen combinations which showed severe infection (susceptibility). Levels of reactive oxygen species (ROS) mainly hydrogen peroxide (H2O2) and superoxide (O2.-) were significantly increased early 6, 12, 24 and 36 hours after inoculation (hai) in the non-host plants as compared with host plants. Interestingly enough that the activities of the antioxidant enzymes such as catalase (CAT), dehydroascorbate reductase (DHAR) and peroxidase (POX) were not significantly increased at the same early time 6 - 36 hai in the non-host plants. However, these enzymes were significantly increased later on 48, 72 and 96 dai in the non-host plants as compared with host plants. It seems that early accumulation of H2O2 and O2.- could have a dual roles, first role is inhibiting or killing the pathogens early in the non-host plants, second immunization of the non-host plants by stimulating the activities of the antioxidant enzymes later on which thereby, neutralize the harmful effect of ROS and consequently suppressing disease symptoms. The author recommends giving more attention to these new mechanisms of non-host resistance particularly in relation to ROS levels and antioxidant activities which are very important for plant breeders and useful for finding alternative control strategies as well.
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Kovalenko, A. G., T. D. Grabina, L. V. Kolesnik, L. F. Didenko, L. T. Oleschenko, Z. M. Olevinskaya, and T. A. Telegeeva. "Virus Resistance Induced with Mannan Sulphates in Hypersensitive Host Plants." Journal of Phytopathology 137, no. 2 (February 1993): 133–47. http://dx.doi.org/10.1111/j.1439-0434.1993.tb01333.x.

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Lou, Y., and I. T. Baldwin. "Manduca sexta recognition and resistance among allopolyploid Nicotiana host plants." Proceedings of the National Academy of Sciences 100, Supplement 2 (October 6, 2003): 14581–86. http://dx.doi.org/10.1073/pnas.2135348100.

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Klingeman, W. E., F. Chen, H. J. Kim, and P. C. Flanagan. "Feeding Preferences of Dogwood Sawfly Larvae Indicate Resistance in Cornus." Journal of Environmental Horticulture 25, no. 3 (September 1, 2007): 134–38. http://dx.doi.org/10.24266/0738-2898-25.3.134.

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Abstract Dogwood sawfly (Macremphytus tarsatus Say) is a native, phytophagous insect that relies on Cornus sp. host plants for larval development. Feeding injury by dogwood sawflies is primarily aesthetic and seldom results in host plant death. Still, native and non-native dogwoods have not been evaluated for susceptibility to larval feeding by this aesthetically damaging wasp. Ten species or cultivars of dogwoods that are either naturalized native plants or economically significant landscape plants were assayed for host suitability to dogwood sawfly larvae in no-choice and choice experiments. Flowering, kousa and corneliancherry dogwoods were consistently ranked among the least susceptible host plants while ‘Sibirica’ tatarian, gray, and ‘Flaviramea’ golden-twig dogwoods were highly preferred hosts. Preliminary GC/MS comparisons of foliar metabolite extracts from all 10 species have identified five peaks of interest that varied between resistant and susceptible hosts. These results suggest that certain chemical constituents in foliage of dogwood species may be important predictors of host palatability. More research is needed to confirm this hypothesis before crossbreeding for sawfly resistance can proceed.
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Chen, Yu, and Dennis A. Halterman. "Phenotypic Characterization of Potato Late Blight Resistance Mediated by the Broad-Spectrum Resistance Gene RB." Phytopathology® 101, no. 2 (February 2011): 263–70. http://dx.doi.org/10.1094/phyto-04-10-0119.

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The potato gene RB, cloned from the wild potato species Solanum bulbocastanum, confers partial resistance to late blight, caused by the oomycete pathogen Phytophthora infestans. In order to better characterize this partial resistance phenotype, we have compared host resistance responses mediated by RB with those mediated by the S. demissum-derived R gene R9, which confers immunity to P. infestans carrying the corresponding avirulence gene avrR9. We found that both RB and R9 genes were capable of eliciting a hypersensitive cell death response (HR). However, in RB plants, the pathogen escaped HR lesions and continued to grow beyond the inoculation sites. We also found that callose deposition was negatively correlated with resistance levels in tested plants. Transcription patterns of pathogenesis-related (PR) genes PR-1 basic, PR-2 acidic, and PR-5 indicated that P. infestans inoculation induced transcription of these defense-related genes regardless of the host genotype; however, transcription was reduced in both the susceptible and partially resistant plants later in the infection process but remained elevated in the immune host. Most interestingly, transcription of the HR-associated gene Hin1 was suppressed in both Katahdin and RB-transgenic Katahdin but not in R9 4 days after inoculation. Together, this suggests that suppression of certain defense-related genes may allow P. infestans to spread beyond the site of infection in the partially resistant host despite elicitation of hypersensitive cell death.
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Rousseau, Elsa, Mélanie Bonneault, Frédéric Fabre, Benoît Moury, Ludovic Mailleret, and Frédéric Grognard. "Virus epidemics, plant-controlled population bottlenecks and the durability of plant resistance." Philosophical Transactions of the Royal Society B: Biological Sciences 374, no. 1775 (May 6, 2019): 20180263. http://dx.doi.org/10.1098/rstb.2018.0263.

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Plant qualitative resistances to viruses are natural exhaustible resources that can be impaired by the emergence of resistance-breaking (RB) virus variants. Mathematical modelling can help determine optimal strategies for resistance durability by a rational deployment of resistance in agroecosystems. Here, we propose an innovative approach, built up from our previous empirical studies, based on plant cultivars combining qualitative resistance with quantitative resistance narrowing population bottlenecks exerted on viruses during host-to-host transmission and/or within-host infection. Narrow bottlenecks are expected to slow down virus adaptation to plant qualitative resistance. To study the effect of bottleneck size on yield, we developed a stochastic epidemic model with mixtures of susceptible and resistant plants, relying on continuous-time Markov chain processes. Overall, narrow bottlenecks are beneficial when the fitness cost of RB virus variants in susceptible plants is intermediate. In such cases, they could provide up to 95 additional percentage points of yield compared with deploying a qualitative resistance alone. As we have shown in previous works that virus population bottlenecks are at least partly heritable plant traits, our results suggest that breeding and deploying plant varieties exposing virus populations to narrowed bottlenecks will increase yield and delay the emergence of RB variants. This article is part of the theme issue ‘Modelling infectious disease outbreaks in humans, animals and plants: approaches and important themes’. This issue is linked with the subsequent theme issue ‘Modelling infectious disease outbreaks in humans, animals and plants: epidemic forecasting and control’.
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Dissertations / Theses on the topic "Host resistance in plants"

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Wilson, F. D., and H. M. Flint. "Host Plant Resistance." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/203923.

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Wilson, F. D., and H. M. Flint. "Host Plant Resistance." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/219754.

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The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.
Cotton breeding stocks were evaluated for resistance to pink bollworm. Resistance is being transferred into improved agronomic stocks.
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Cameron, Duncan Drummond. "A role for differential host resistance to the hemiparasitic angiosperm, Rhinanthus minor L. in determining the structure of host plant communities?" Thesis, University of Aberdeen, 2004. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=238495.

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This study describes the effect of the root hemi-parasitic angiosperm Rhinanthus minor on the structure of the communities in which it lives and seeks to elucidate a mechanism through which the parasite acts to effect these changes in the community. Field manipulations reveal that R. minor suppressed the growth of grasses and legumes in a newly sown meadow whilst promoting the forbs within one growing season. In contrast the removal of R. minor from mature meadow plots did not influence their composition. After an additional growing season the parasite did not further influence the composition of the new meadows but removal did begin to benefit the biomass of mature plots. In isolation the parasite caused most damage to grasses whilst leaving legumes and forbs undamaged. Moreover, the parasite performed worst in terms of growth and photosynthesis when attached to the forbs. Consequently the parasite was able to moderate intra-specific competition between grasses and forbs. I thus hypothesised that forbs were able to prevent the parasite form abstracting resources where as grasses could not. Tracer experiments using isotopically e5N) labelled potassium nitrate confirmed this hypothesis showing that more of the resources taken up by the host were stolen by the parasite from grasses than from forbs. There was much variability in the translocation of resources from the legume studied. The reasons underlying the differential uptake of resources were highlighted using histological studies which showed that all of the forbs possessed successful resistance mechanisms to the parasite whilst no successful resistance was observed in the grasses or legumes. Two different resistance mechanisms were observed in the forbs; hypersensitive cell-death at the host-parasite interface and host lignification. I therefore propose that differential host resistance may underlie this parasite's community level effects as forbs possess a resistance capacity that other potential hosts do not.
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Soriano, Imelda Rizalina. "Novel inducible phytochemical defences against plant parasitic nematodes /." Title page, table of contents and summary only, 2004. http://web4.library.adelaide.edu.au/theses/09PH/09phs7141.pdf.

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Gammelgård, Elin. "Interactions of potato virus A with host plants : recombination, gene silencing and non-hypersensitive resistance /." Uppsala : Dept. of Plant Biology and Forest Genetics, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/2007111.pdf.

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Madumadu, Glynn George. "Inheritance of resistance to Corynebacterium michiganense (E.F. Sm.) H.L. Jens in tomato (Lycopersicon esculentum) and effect of host nutrition (N and CA) on resistance /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487259580261617.

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Beswetherick, John T. "An ultrastructural study of host and non-host resistance reactions in plant cells." Thesis, Open University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292658.

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Chigurupati, Pavan Chandra. "Role of SABP2 in Tobacco Non-Host Resistance." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/1393.

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Plant innate immunity is activated upon pathogen attack by recognizing their avirulent (avr) genes by Resistant (R) genes leading to R-gene resistance or host resistance. Another form of innate immunity is non-host resistance that is exhibited by a given plant species to most strains of a microbial species. R-gene resistance activates salicylic acid (SA) that is synthesized from methyl salicylic acid (MeSA) by Salicylic Acid Binding Protein 2 (SABP2). It was hypothesized that SABP2 plays the similar role in non-host resistance also. Growth experiments and non-host related gene analysis experiments were conducted on tobacco plants using P.s tabaci and P.s. phaseolicola that are host and non-host pathogens on tobacco respectively. Tobacco control plant C3 that expresses SABP2 and 1-2 that is RNAi silenced in SABP2 expression were used in this study. Results suggest that SABP2 may not have any significant role in tobacco non-host resistance.
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Krenz, Jennifer E. "Specificity of quantitatively expressed host resistance to Mycosphaerella graminicola /." Connect to this title online, 2007. http://hdl.handle.net/1957/3813.

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Vigier, Bernard. "Host plant resistance and epidemiology of Fusarium ear rot in maize." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ28380.pdf.

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Books on the topic "Host resistance in plants"

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S, Khush Gurdev, ed. Host plant resistance to insects. Wallingford, Oxon, UK: CAB International in association with the International Rice Research Institute, 1995.

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S, Sadasivam. Molecular host plant resistance to pests. New York: Marcel Dekker, 2003.

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Host management in crop pathosystems. New York: Macmillan, 1987.

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Kumar Chakravarthy, Akshay, and Venkatesan Selvanarayanan, eds. Experimental Techniques in Host-Plant Resistance. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2652-3.

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Pande, S. Host plant resistance to Ascochyta blight of chickpea. Patancheru: International Crops Research Institute for the Semi-arid Tropics, 2010.

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Deverall, Brian J. Defence mechanisms of plants. Cambridge: Cambridge University Press, 2009.

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Vidhyasekaran, P. Fungal pathogenesis in plants and crops: Molecular biology and host defense mechanisms. New York: M. Dekker, 1997.

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Fungal pathogenesis in plants and crops: Molecular biology and host defense mechanisms. 2nd ed. Boca Raton: CRC Press, 2008.

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Thomas, Matthew. Integration of biological control and host-plant resistance breeding: A scientific and literature review. Wageningen, The Netherlands: CTA, 1996.

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Donnelly, Elizabeth F. Studies on the influence of host plant nutrition on cereal aphids with particular emphasis on the effects of a low-input, clover-wheat bicropping production system. Dublin: University College Dublin, 1998.

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Book chapters on the topic "Host resistance in plants"

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Dent, David, and Richard H. Binks. "Host plant resistance." In Insect pest management, 103–50. Wallingford: CABI, 2020. http://dx.doi.org/10.1079/9781789241051.0103.

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Capinera, John L., Thomas O. Crist, John B. Heppner, Minos E. Tzanakakis, Severiano F. Gayubo, Aurélien Tartar, Pauline O. Lawrence, et al. "Host Plant Resistance." In Encyclopedia of Entomology, 1863. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_1408.

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Butter, N. S., and A. K. Dhawan. "Host Plant Resistance." In A Monograph on Whiteflies, 75–92. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003095668-6.

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Chakravarthy, A. K., E. V. Jose Luis, S. Onkara Naik, and B. Rajkumar. "Economic and Ecological Values of Resistant Plants." In Experimental Techniques in Host-Plant Resistance, 253–63. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2652-3_26.

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Sunil Kumar, B., and C. Immanuel Selvaraj. "Agrobacterium-Mediated Transformation for Insect-Resistant Plants." In Experimental Techniques in Host-Plant Resistance, 275–83. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2652-3_28.

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Amalahyacinth and Chand Asaf. "Evaluation of Insect Resistance Using Tissue-Cultured Plants." In Experimental Techniques in Host-Plant Resistance, 187–93. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2652-3_21.

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Priyadarshan, P. M. "Host Plant Resistance Breeding." In PLANT BREEDING: Classical to Modern, 379–412. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7095-3_18.

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Kandakoor, Subhash B., and V. Sridhar. "Determining Stability of Insect-Resistant Plants in Varying Climatic Regimes." In Experimental Techniques in Host-Plant Resistance, 239–43. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2652-3_24.

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Muthukumaran, N., and R. Promoth Kumar. "Techniques for Evaluation of Biophysical Factors of Resistance in Crop Plants." In Experimental Techniques in Host-Plant Resistance, 151–59. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2652-3_18.

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Balaji, K., and A. Thanga Hemavathy. "Techniques for the Evaluation of Biochemical Factors of Resistance in Crop Plants." In Experimental Techniques in Host-Plant Resistance, 161–82. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2652-3_19.

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Conference papers on the topic "Host resistance in plants"

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Vosman, Ben. "Host plant resistance towards insects." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.105645.

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Nibouche, Samuel. "Genetic diversity inMelanaphis sacchariand host-plant resistance in sugarcane." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.108360.

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Hodgson, Erin W., and Matt E. O'Neal. "Research update on host plant resistance for soybean aphid." In Proceedings of the 21st Annual Integrated Crop Management Conference. Iowa State University, Digital Press, 2010. http://dx.doi.org/10.31274/icm-180809-40.

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Prasifka, Jarrad. "Host plant resistance to sunflower insect pests in North America." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.111207.

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Garipova, S. R., O. V. Markova, R. Sh Irgalina, D. V. Garifullina, R. M. Khairullin, O. V. Lastochkina, and L. I. Pusenkova. "The formation of productivity and stress resistance of leguminous plants in association with endophytic bacteria, which complemented the deficient properties of plant-host genotype." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.083.

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The strong and weak properties of peas and beans cultivars were identified in field experiments. The best productivity of inoculated plants was due to the resistance to biotic and abiotic stress induced by endophytic bacteria.
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Lorence, Argelia. "Characterization of host plant resistance to herbivores through high-throughput phenotyping." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.105643.

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Lahiri, Sriyanka. "Host plant resistance in soybean for pest management ofMegacopta cribraria(Hemiptera: Plataspidae)." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.112042.

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Straub, Cory. "Host plant resistance and biological control: A test of the movement-risk hypothesis." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.109191.

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Ozawa, Rika. "Genetic variations ofTetranychus kanzawaiconferring different abilities on host plant adaptation and pesticide resistance." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.114026.

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Cheng, Kuok, Eunsoo Yang, Chi Young Lee, Zane Ricks, Viljar Palmre, and Kwang Kim. "Fine-Tuned Polymer Nano-Composite Coatings for Use in Geothermal Plants." In ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/smasis2011-5012.

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Often times erosion, corrosion, and fouling by scale deposition are primary issues for geothermal-fluid-wetted process equipment. In particular, wet heat exchangers used in geothermal power plants must deal with scale deposition. Previously, a surface-coating of polytetrafluoroethylene (PTFE) was considered to provide a non-stick surface. However, intrinsically poor thermal conductivity of PTFE, along with its poor abrasion resistance and weak adhesion to metal substrate, turns out to be a serious concern for engineering use. In this paper, we report a fine-tuned nano-composite by incorporating PTFE/Carbon-nanotube (CNT) into the polyphenylene surfide (PPS) host matrix. PPS is a thermoplastic polymer exhibiting outstanding high-temperature stability, excellent flame resistance, and good chemical resistance. By adding PTFE/CNTs into a PPS matrix, a superhydrophobic surface can also be created by contemplating the chemical composition of the surface material and the cooperative effect of nano-micro structures at the surface. Furthermore, carefully engineered superhydrophobic surfaces can create so-called “dropwise condensation [1]” which can dramatically enhance steam condensation heat transfer. We report the performance results of such nanocomposites regarding steam condensation, along with other surface characteristics. It is our anticipation that, with proper treatment, PTFE/CNT blended PPS can be widely adopted for use in high performance heat exchangers in geothermal industries.
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Reports on the topic "Host resistance in plants"

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Harms, Nathan, Judy Shearer, James Cronin, and John Gaskin. Geographic and genetic variation in susceptibility of Butomus umbellatus to foliar fungal pathogens. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41662.

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Large-scale patterns of plant invasions may reflect regional heterogeneity in biotic and abiotic factors and genetic variation within and between invading populations. Having information on how effects of biotic resistance vary spatially can be especially important when implementing biological control because introduced agents may have different Impacts through interactions with host-plant genotype, local environment, or other novel enemies. We conducted a series of field surveys and laboratory studies to determine whether there was evidence of biotic resistance, as foliar fungal pathogens, in two introduced genotypes (triploid G1, diploid G4) of the Eurasian wetland weed, Butomus umbellatus L. in the USA. We tested whether genotypes differed in disease attack and whether spatial patterns in disease incidence were related to geographic location or climate for either genotype. After accounting for location (latitude, climate), G1 plants had lower disease incidence than G4 plants in the field (38% vs. 70%) but similar pathogen richness. In contrast, bioassays revealed G1 plants consistently received a higher damage score and had larger leaf lesions regardless of pathogen. These results demonstrate that two widespread B. umbellatus genotypes exhibit different susceptibility to pathogens and effectiveness of pathogen biological controls may depend on local conditions.
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Sniezko, Richard A., Alvin D. Yanchuk, John T. Kliejunas, Katharine M. Palmieri, Janice M. Alexander, and Susan J. Frankel. Proceedings of the fourth international workshop on the genetics of host-parasite interactions in forestry: Disease and insect resistance in forest trees. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 2012. http://dx.doi.org/10.2737/psw-gtr-240.

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Wei, Fulu, Ce Wang, Xiangxi Tian, Shuo Li, and Jie Shan. Investigation of Durability and Performance of High Friction Surface Treatment. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317281.

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The Indiana Department of Transportation (INDOT) completed a total of 25 high friction surface treatment (HFST) projects across the state in 2018. This research study attempted to investigate the durability and performance of HFST in terms of its HFST-pavement system integrity and surface friction performance. Laboratory tests were conducted to determine the physical and mechanical properties of epoxy-bauxite mortar. Field inspections were carried out to identify site conditions and common early HFST distresses. Cyclic loading test and finite element method (FEM) analysis were performed to evaluate the bonding strength between HFST and existing pavement, in particular chip seal with different pretreatments such as vacuum sweeping, shotblasting, and scarification milling. Both surface friction and texture tests were undertaken periodically (generally once every 6 months) to evaluate the surface friction performance of HFST. Crash records over a 5-year period, i.e., 3 years before installation and 2 years after installation, were examined to determine the safety performance of HFST, crash modification factor (CMF) in particular. It was found that HFST epoxy-bauxite mortar has a coefficient of thermal expansion (CTE) significantly higher than those of hot mix asphalt (HMA) mixtures and Portland cement concrete (PCC), and good cracking resistance. The most common early HFST distresses in Indiana are reflective cracking, surface wrinkling, aggregate loss, and delamination. Vacuum sweeping is the optimal method for pretreating existing pavements, chip seal in particular. Chip seal in good condition is structurally capable of providing a sound base for HFST. On two-lane highway curves, HFST is capable of reducing the total vehicle crash by 30%, injury crash by 50%, and wet weather crash by 44%, and providing a CMF of 0.584 in Indiana. Great variability may arise in the results of friction tests on horizontal curves by the use of locked wheel skid tester (LWST) due both to the nature of vehicle dynamics and to the operation of test vehicle. Texture testing, however, is capable of providing continuous texture measurements that can be used to calculate a texture height parameter, i.e., mean profile depth (MPD), not only for evaluating friction performance but also implementing quality control (QC) and quality assurance (QA) plans for HFST.
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The Role of a Host Protein (TIP) in the Resistance Response of Arabidopsis to Turnip Crinkle Virus Infection. Office of Scientific and Technical Information (OSTI), October 2008. http://dx.doi.org/10.2172/939673.

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