Academic literature on the topic 'Phytoalexine'

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Journal articles on the topic "Phytoalexine"

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Gross, Dieter, Andrea Porzel, and Jürgen Schmidt. "Phytoalexine mit Indolstruktur aus Kohlrabi {Brassica oleracea var. gongylodes)+ / Indole Phytoalexins from the Kohlrabi (Brassica oleracea var. gongylodes)+." Zeitschrift für Naturforschung C 49, no. 5-6 (1994): 281–85. http://dx.doi.org/10.1515/znc-1994-5-601.

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Abstract UV-irradiation of sliced stem tubers of kohlrabi (Brassica oleracea var. gongylodes) followed by incubation for 4 days, resulted in the production of two new sulphur-containing indole phytoalexins, cyclobrassinone and 1 -methoxyspirobrassinin, whose structures were elucidated on the basis of spectroscopic data. Three known indole phytoalexins, spirobrassinin, methoxybrassitin and methoxybrassinin, and several m inor phytoalexin-like compounds not yet identified were also isolated. The accumulation of these indole phytoalexins was also induced by abiotic elicitation with CuCl2. Feeding
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Höxtermann, Ekkehard. "Karl Otto Müller (1897—1978) und die Entdeckungsgeschichte der Phytoalexine." Journal of Phytopathology 132, no. 2 (1991): 161–67. http://dx.doi.org/10.1111/j.1439-0434.1991.tb00107.x.

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Mohanty, B., S. M. Basha, D. W. Gorbet, R. J. Cole, and J. W. Dorner. "Variation in Phytoalexin Production by Peanut Seed from Several Genotypes1." Peanut Science 18, no. 1 (1991): 19–22. http://dx.doi.org/10.3146/i0095-3679-18-1-7.

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Abstract Evaluation of twenty peanut (Arachis hypogaea L.) genotypes for their phytoalexin producing ability showed wide variation in the amount and composition of phytoalexins produced. Some genotypes produced one major phytoalexin component while the other genotypes produced seven major phytoalexin components. In addition, high phytoalexin producing genotypes utilized more methionine-rich protein than the low phytoalexin producing genotypes suggesting that methionine-rich protein or its breakdown products may have a role in phytoalexin production.
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Ingham, John L. "A Further Investigation of Phytoalexin Formation in the Genus Trifolium." Zeitschrift für Naturforschung C 45, no. 7-8 (1990): 829–34. http://dx.doi.org/10.1515/znc-1990-7-814.

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Abstract An earlier study of phytoalexin formation in the genus Trifolium has now been extended to include a further 61 species and subspecies. Using the drop-diffusate method, isoflavonoid phytoalexins were isolated from the fungus-inoculated leaflets of 55 accessions, whilst four others produced the stilbene derivative resveratrol. Phytoalexins could not be obtained from the leaflets of two species, T. billardieri and T. grandiflorum. The pterocarpan medicarpin was the most commonly encountered phytoalexin, occurring alone or in various combinations with the known Trifolium isofjavonoids maa
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Matsuoka, Koji. "Total Synthesis of a Heptasaccharide Phytoalexine Elicitor through Solid Phase Synthesis." Trends in Glycoscience and Glycotechnology 9, no. 49 (1997): 411–12. http://dx.doi.org/10.4052/tigg.9.411.

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Carle, Reinhold. "Phytoalexine und ihre Bedeutung für die Resistenz höherer Pflanzen gegenüber Schadorganismen." Pharmazie in Unserer Zeit 21, no. 3 (1992): 99–104. http://dx.doi.org/10.1002/pauz.19920210307.

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Thynn, M., A. Wolff, E. Gorge, and D. Werner. "Low Concentrations of Phytoalexins Correlate with Resistance in Regenerated Plants from Meristem Cultures of Vicia faba L." Zeitschrift für Naturforschung C 44, no. 3-4 (1989): 237–42. http://dx.doi.org/10.1515/znc-1989-3-411.

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Abstract In tissue cultures from shoot apex meristems with leaf primordias of Vicia faba cv. TP667, addition of low concentration of auxins (0.01 mg ・1-1) induced regeneration of whole plants at high frequency (100%). The combination of NAA and kinetin or GA , also induced a high yield of plant regeneration. Regenerated plants from various cultivars on a medium with 2 ,4 D (0.01 mg ・1-1) were infected with Botrytis cinerea, Phytophthora megasperma and R hizoctonia solani. Accumulation of phytoalexins, ethylene production and the resistance to fungal diseases were studied. In general, productio
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Fawe, A., M. Abou-Zaid, J. G. Menzies, and R. R. Bélanger. "Silicon-Mediated Accumulation of Flavonoid Phytoalexins in Cucumber." Phytopathology® 88, no. 5 (1998): 396–401. http://dx.doi.org/10.1094/phyto.1998.88.5.396.

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The controversial role of silicon in plant disease resistance, described mostly as a passive mechanical protection, has been addressed. Conclusive evidence is presented that silicon is involved in the increased resistance of cucumber to powdery mildew by enhancing the antifungal activity of infected leaves. This antifungal activity was attributable to the presence of low-molecular-weight metabolites. One of these metabolites, described here as a phytoalexin, was identified as a flavonol aglycone rhamnetin (3,5,3′,4′-tetrahydroxy-7-O-methoxyflavone). This is the first report of a phytoalexin fo
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Aziz, Aziz, Patricia Trotel-Aziz, Laurent Dhuicq, Philippe Jeandet, Michel Couderchet, and Guy Vernet. "Chitosan Oligomers and Copper Sulfate Induce Grapevine Defense Reactions and Resistance to Gray Mold and Downy Mildew." Phytopathology® 96, no. 11 (2006): 1188–94. http://dx.doi.org/10.1094/phyto-96-1188.

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Chitosan (CHN), a deacetylated derivative of chitin, was shown to be efficient in promoting plant defense reactions. CHN oligomers of different molecular weight (MW) and degree of acetylation (DA) triggered an accumulation of phytoalexins, trans- and cis-resveratrol and their derivatives ε-viniferin and piceid, in grapevine leaves. Highest phytoalexin production was achieved within 48 h of incubation with CHN at 200 μg/ml with an MW of 1,500 and a DA of 20% (CHN1.5/20), while oligomers with greater MW were less efficient, indicating that a specific MW threshold could be required for phytoalexi
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Pedras, M. Soledade C., Ravi S. Gadagi, Qing-An Zheng, and S. Roger Rimmer. "Selective Elicitation of the Phytoalexin Rutalexin in Rutabaga and Turnip Roots by a Biotrophic Plant Pathogen." Natural Product Communications 3, no. 8 (2008): 1934578X0800300. http://dx.doi.org/10.1177/1934578x0800300804.

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Stress responses of roots of rutabaga ( Brassica napus ssp. napobrassica) and turnip ( B. rapa ssp. rapa) were analyzed. Phytoalexin production due to biotic elicitation by the biotroph Albugo candida and abiotic elicitation using UV irradiation was quantified by HPLC. The phytoalexin rutalexin was produced in substantially higher amounts in rutabaga and turnip roots inoculated with A. candida than in UV irradiated roots. By contrast, production of the phytoalexins brassinin in rutabaga and cyclobrassinin in turnip was higher in UV irradiated roots than in roots inoculated with A. candida. Ove
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Dissertations / Theses on the topic "Phytoalexine"

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Jeandet, Philippe. "Interaction plante-pathogène : recherches sur la production de resvératrol (3,5,4-trihydroxystilbène), une phytoalexine de la vigne." Dijon, 1991. http://www.theses.fr/1991DIJOS006.

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La production du resvératrol (trans-3,5,4-trihydroxystilbène), une phytoalexine de la vigne liée à la résistance à la pourriture grise (Botrytis cinerea) a été étudiée dans ce travail. Après avoir mis au point la synthèse du resvératrol et son dosage par chromatographie en phase gazeuse, la production de cette molécule chez la vigne a été analysée. Le resvératrol est synthétisé par les baies de raisins en réponse à divers types d'éliciteurs naturels ou abiotiques mais cette aptitude décroit régulièrement jusqu'à la maturité des fruits. Cette décroissance peut expliquer la sensibilité élevée de
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Rouxel, Thierry. "Pouvoir pathogène de Leptosphaeria maculans et réaction hypersensible de Brassica spp. intervention d'une pathotoxine, la sirodesmine pl. et d'une phytoalexine, la brassilexine /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37618307r.

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Rouxel, Thierry. "Pouvoir pathogène de Leptosphaeria maculans et réaction hypersensible de Brassica spp. : intervention d'une pathotoxine, la sirodesmine PL., et d'une phytoalexine, la brassilexine." Paris 11, 1988. http://www.theses.fr/1988PA112346.

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Leptosphaeria maculans (Desm. ) Ces et de Not (Phoma lingam), agent de la nécrose du collet des crucifères, produit une toxine: la sirodesmine PL. Sur feuilles ou cotylédons de colza (Brassica napus L. Var. Oleifera), cette épipolythiopipérazinedione cause une lésion comparable au symptôme primaire de la maladie. Sa toxicité pour les Brassica résistantes ou pour des plantes non-hôtes suggère que la sirodesmine PL n'est pas impliquée dans la spécificité parasitaire. L'incorporation de [14C] uridine dans les ARN de tissus embryogènes de colza est rapidement et fortement inhibée par la sirodesmin
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Ben, Ali Doha. "Production de dianthalexine et de protéines b dans des cellules de Dianthus caryophyllus L. élicitées par Phytophthora parasitica Dastur : approche de la voie de synthèse de la phytoalexine." Lyon 1, 1985. http://www.theses.fr/1985LYO11665.

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Cette etude a ete conduite sur le metabolisme de la dianthalexine, phytoalexine specifique de l'oeillet (dianthus caryophyllus l. ) induite dans les suspensions cellulaires d'oeillet apres elicitation avec du milieu de culture de phytophthora parasitica. La premiere partie a ete consacree a l'etude de la croissance des cellules d'oeillet en suspension et a la cinetique de synthese de la dianthalexine a la suite d'une elicitation. La deuxieme partie a ete consacree a demontrer la participation de la voie du shikimate a la biosynthese de la dianthalexine, par l'intermediaire de ses regulateurs a
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Mistry, Jayshree. "Oat phytoalexins and magnesium chelates." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276204.

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Kamo, Tsunashi. "Phenylphenalenone Phytoalexins from Banana Fruit." Kyoto University, 2001. http://hdl.handle.net/2433/150318.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第9105号<br>農博第1201号<br>新制||農||828(附属図書館)<br>学位論文||H13||N3564(農学部図書室)<br>UT51-2001-G825<br>京都大学大学院農学研究科応用生命科学専攻<br>(主査)教授 大東 肇, 教授 坂田 完三, 教授 津田 盛也<br>学位規則第4条第1項該当
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Kokubun, Tetsuo. "Phytoalexin induction in the Rosaceae." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240293.

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Mann, I. S. "The synthesis of benzofuran resorcinyl phytoalexins." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47168.

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Al-Barwani, Fatma Mohammed. "Phytoalexin induction in the family Umbelliferae." Thesis, University of Reading, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250604.

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Okanga, Francis Inyangala. "Biotransformation of cruciferous phytoalexins by pathogenic fungi." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0016/NQ37905.pdf.

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Books on the topic "Phytoalexine"

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Mycotoxins and phytoalexins. CRC Press, 1991.

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Phytoalexins: Current Progress and Future Prospects. MDPI, 2015. http://dx.doi.org/10.3390/books978-3-03842-059-0.

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Dr, Daniel M., and Purkayastha R. P. 1935-, eds. Handbook of phytoalexin metabolism and action. M. Dekker, 1995.

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Duchesne, Luc Clement. Phytoalexin accumulation and resistance to Dutch elm disease. 1985.

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Structure, Chemical Analysis, Biosynthesis, Metabolism, Molecular Engineering and Biological Functions of Phytoalexins. MDPI, 2018. http://dx.doi.org/10.3390/books978-3-03842-756-8.

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Su, Hong. Isolation, purification, and structure elucidation of hop plant elicitor. 1992.

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Daniel. Handbook of Phytoalexin Metabolism and Action (Books in Soils, Plants, and the Environment). CRC, 1994.

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Batista, Ulisses Gomes *. The role of the polyacetylemic phytoalexin falcarindiol in the interaction between "Cladosporium fulvum" Cooke and tomato. 1987.

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Wu, Weidong. Toxic effects of elm phytoalexins mansonones on "Ophiostoma ulmi" (Buism.) Nannf., the causal agent of Dutch elm disease. 1986.

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Book chapters on the topic "Phytoalexine"

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Harborne, Jeffrey B. "Wechselbeziehungen zwischen höheren und niederen Pflanzen: Phytoalexine und Phytotoxine." In Ökologische Biochemie. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-39851-3_10.

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Keen, N. T. "Phytoalexins and Their Elicitors." In ACS Symposium Series. American Chemical Society, 1990. http://dx.doi.org/10.1021/bk-1990-0439.ch006.

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Stipanovic, R. D., M. E. Mace, M. H. Elissalde, and A. A. Bell. "Desoxyhemigossypol, A Cotton Phytoalexin." In ACS Symposium Series. American Chemical Society, 1991. http://dx.doi.org/10.1021/bk-1991-0449.ch023.

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West, Charles A., Augusto F. Lois, Karen A. Wickham, and Yue-Ying Ren. "Diterpenoid Phytoalexins: Biosynthesis and Regulation." In Biochemistry of the Mevalonic Acid Pathway to Terpenoids. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-8789-3_6.

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Dixon, R. A., P. M. Dey, and C. J. Lamb. "Phytoalexins: Enzymology and Molecular Biology." In Advances in Enzymology - and Related Areas of Molecular Biology. John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/9780470123010.ch1.

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Grisebach, H., P. Moesta, and M. G. Hahn. "Radioimmunoassay for a Soybean Phytoalexin." In Immunology in Plant Sciences. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82853-9_4.

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Elakovich, Stella D. "Sesquiterpenes as Phytoalexins and Allelopathic Agents." In ACS Symposium Series. American Chemical Society, 1987. http://dx.doi.org/10.1021/bk-1987-0325.ch007.

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Pedras, M. Soledade C., Abdul Q. Khan, and Janet L. Taylor. "Phytoalexins from Brassicas: Overcoming Plants' Defenses." In Phytochemicals for Pest Control. American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1997-0658.ch012.

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Strange, R. N. "High Performance Liquid Chromatography of Phytoalexins." In High Performance Liquid Chromatography in Plant Sciences. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-82951-2_9.

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Stuart, Jeffrey A., and Ellen L. Robb. "Resveratrol and Its Derivatives as Phytoalexins." In Bioactive Polyphenols from Wine Grapes. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6968-1_1.

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Conference papers on the topic "Phytoalexine"

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Kim, Hyo Jung, Chae Lim Jung, Dae Hwan Nam, et al. "Abstract 4243: Potential protective role of phytoalexins derived from soybean by biotic elicitor on inflammatory mechanism." In Proceedings: AACR 102nd Annual Meeting 2011‐‐ Apr 2‐6, 2011; Orlando, FL. American Association for Cancer Research, 2011. http://dx.doi.org/10.1158/1538-7445.am2011-4243.

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Mezencev, Roman, and John F. McDonald. "Abstract 1292: Camalexin, an indole phytoalexin from Arabidopsis thaliana, displays activity against ovarian cancer stem cells." In Proceedings: AACR 107th Annual Meeting 2016; April 16-20, 2016; New Orleans, LA. American Association for Cancer Research, 2016. http://dx.doi.org/10.1158/1538-7445.am2016-1292.

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Smith, Basil A. "Abstract 542: Camalexin, the phytoalexin fromCruciferous Plants, decreases cell proliferation and induces apoptosis in prostate cancer cells." In Proceedings: AACR 103rd Annual Meeting 2012‐‐ Mar 31‐Apr 4, 2012; Chicago, IL. American Association for Cancer Research, 2012. http://dx.doi.org/10.1158/1538-7445.am2012-542.

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Walker, Rashidra R., Jankiben Patel, A. Michael Davidson, Karen Gallegos, and Syreeta L. Tilghman. "Abstract P3-11-15: A novel phytoalexin, glyceollins, trigger anti-proliferative effects in aromatase inhibitor resistant breast cancer cells." In Abstracts: 2019 San Antonio Breast Cancer Symposium; December 10-14, 2019; San Antonio, Texas. American Association for Cancer Research, 2020. http://dx.doi.org/10.1158/1538-7445.sabcs19-p3-11-15.

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Walker, Rashidra R., Jankiben Patel, A. Michael Davidson, and Syreeta L. Tilghman. "Abstract 4116: A novel phytoalexin, glyceollins, trigger anti-proliferative and apoptotic effects in aromatase inhibitor resistant breast cancer cells." In Proceedings: AACR Annual Meeting 2020; April 27-28, 2020 and June 22-24, 2020; Philadelphia, PA. American Association for Cancer Research, 2020. http://dx.doi.org/10.1158/1538-7445.am2020-4116.

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Sirerol, J. Antoni, Ines Pulido, Miguel Asensi, Angel Ortega, and Jose M. Estrela. "Abstract 1605: Pterostilbene, a natural phytoalexin, effectively protects against UVB-induced skin carcinogenesis by increasing antioxidant cellular defenses and preventing mutagenesis." In Proceedings: AACR Annual Meeting 2014; April 5-9, 2014; San Diego, CA. American Association for Cancer Research, 2014. http://dx.doi.org/10.1158/1538-7445.am2014-1605.

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Benlloch, Maria, Soraya L. Valles, Maria L. Rodriguez, et al. "Abstract 2810: Pterostilbene, a natural phytoalexin, weakens the antioxidant defenses of aggressive cancer cells in vivo: a pituitary gland- and Nrf2-dependent mechanism." In Proceedings: AACR 107th Annual Meeting 2016; April 16-20, 2016; New Orleans, LA. American Association for Cancer Research, 2016. http://dx.doi.org/10.1158/1538-7445.am2016-2810.

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Reports on the topic "Phytoalexine"

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VanEtten, H. Phytoalexin detoxification genes and gene products: Implication for the evolution of host specific traits for pathogenicity. Final report. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/491534.

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VanEtten, Hans. Final Report: Tolerance to phytoalexins and its implication for the evolution of host specific virulence traits, July 1, 1996 - June 30, 1998. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/756732.

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