Abstract
Hop is an important source of secondary metabolites, such as flavonoids. Some of these are pharmacologically active. Nevertheless, the concentration of some classes as flavonoids in wild-type plants is rather low. To enhance the production in hop, it would be interesting to modify the regulation of genes in the flavonoid biosynthetic pathway. For this purpose, the regulatory factor PAP1/AtMYB75 from Arabidopsis thaliana L. was introduced into hop plants cv. Tettnanger by Agrobacterium-mediated genetic transformation. Twenty kanamycin-resistant transgenic plants were obtained. It was shown that PAP1/AtMYB75 was stably incorporated and expressed in the hop genome. In comparison to the wild-type plants, the color of female flowers and cones of transgenic plants was reddish to pink. Chemical analysis revealed higher levels of anthocyanins, rutin, isoquercitin, kaempferol-glucoside, kaempferol-glucoside-malonate, desmethylxanthohumol, xanthohumol, α-acids and β-acids in transgenic plants compared to wild-type plants.
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Abbreviations
- CaMV:
-
Cauliflower mosaic virus
- ESI:
-
Electrospray ionization
- HPLC:
-
High-performance liquid chromatography
- IAA:
-
Indole-3-acetic acid
- LC–MS:
-
Liquid chromatography–mass spectrometry
- LC–ESI:
-
Liquid chromatography–electrospray ionization
- MS:
-
Murashige and Skoog medium
- MSn:
-
Tandem mass spectrometry
- nptII:
-
Neomycin phosphotransferase gene
- PAP1:
-
Production of anthocyanin pigment 1
- PDA:
-
Photodiode array detection
- TDZ:
-
1-Phenyl-3-(1,2,3-thiadiazol-5-yl) urea
- WT:
-
Wild type
References
Allan A, Hellens R, Laing W (2008) MYB transcription factors that colour our fruit. Trends Plant Sci 13:99–102
Beatson RA, Ansell KA, Graham LT (2003) Breeding, development, and characteristics of the hop (Humulus lupulus) cultivar ‘Nelson Sauvin’ New Zealand. J Crop Hortic Sci 31:303–309
Borevitz J, Xia Y, Blount J, Dixon R, Lamb C (2000) Activation tagging identifies a conserved MYB regulator of phenylpropanoid biosynthesis. Plant Cell 12:2383–2394
Capell T, Christou P (2004) Progress in plant metabolic engineering. Curr Opin Biotech 15:148–154
Chadwick L, Pauli G, Farnsworth N (2006) The pharmacognosy of Humulus lupulus L. (hops) with an emphasis on estrogenic properties. Phytomedicine 13:119–131
Chen W, Lin J (2004) Mechanisms of cancer chemoprevention by hop bitter acids (beer aroma) through induction of apoptosis mediated by Fas and caspase cascades. J Agric Food Chem 52:55–64
De Keukeleire J, Ooms G, Heyerick A, Roldan-Ruiz I, Bockstaele Van, De Keukeleire D (2003) Formation and accumulation of α-acids, β-acids, desmethylxanthohumol xanthohumol during flowering of hops (Humulus lupulus L.). J Agric Food Chem 51:4436–4441
Fleischer R, Horlemann C, Schwekendiek A, Kling C, Weber G (2004) AFLP fingerprinting in hop: analysis of the genetic variability of the Tettnang variety. Genet Res Crop Evol 51:211–220
Gamborg O, Miller R, Ojima K (1968) Nutrient requirements of suspension cultures of soybean root cells. Exp Cell Res 50:151–158
Gerhäuser C (2005) Beer constituents as potential cancer chemopreventive agents. Eur J Cancer 41:1941–1954
Horlemann C, Schwekendiek A, Hohnle M, Weber G (2003) Regeneration and Agrobacterium-mediated transformation of hop (Humulus lupulus L.). Plant Cell Rep 22:210–217
Kavalier AR, Litt A, Ma Ch, Pitra NJ, Coles MC, Kennelly EJ, Matthews PD (2011) Phytochemical and morphological characterization of hop (Humulus lupulus L.) cones over five developmental stages using high performance liquid chromatography coupled to time-of-flight mass spectrometry, ultrahigh performance liquid chromatography photodiode array detection, and light microscopy techniques. J Agric Food Chem 59:4783–4793
Lamy V, Roussi S, Chaabi M, Gossé F, Schall N, Lobstein A, Raul F (2007) Chemopreventive effects of lupulone, a hop β-acid, on human colon cancer-derived metastatic SW620 cells and in a rat model of colon carcinogenesis. Carcinogenesis 28:1575–1581
Lessard P, Kulaveerasingam H, York G, Strong A, Sinskey A (2002) Manipulating gene expression for the metabolic engineering of plants. Metab Eng 4:67–79
Li X, Gao MJ, Pan HY, Cui DJ, Gruber M (2010) Purple canola: Arabidopsis PAP1 increases antioxidants and phenolic in Brassica napus leaves. J Agric Food Chem 58:1639–1645
MacKenzie D, McLean M, Mukerji S, Green M (1997) Improved RNA extraction from woody plants for the detection of viral pathogens by reverse transcription polymerase chain reaction. Plant Dis 81:222–226
Matoušek J, Vrba L, Škopek J, Orctová L, Pešina K, Heyerick A, Baulcombe D, De Keukeleire D (2006) Sequence analysis of a “true” chalcone synthase (chs_H1) oligofamily from hop (Humulus lupulus L.) and PAP1 activation of chs_H1 in heterologous systems. J Agric Food Chem 54:7606–7615
Matoušek J, Kocábek T, Patzak J, Škopek J, Maloukh L, Heyerick A, Fussy Z, Roldán-Ruiz I, Keukeleire D (2007) Hlmyb3, a putative regulatory factor in hop (Humulus lupulus L.), shows a diverse biological effect in heterologous transgenotes. J Agric Food Chem 55:7767–7776
Matsui K, Tanaka H, Ohme-Takagi M (2004) Suppression of the biosynthesis of proanthocyanidin in Arabidopsis by a chimeric PAP1 repressor. Plant Biotech J 2:487–493
Milligan S, Kalita J, Pocock V, Heyerick A, De Cooman L, Rong H (2002) Oestrogenic activity of the hop phyto-oestrogen, 8-prenylnaringenin. Reproduction 123:235–242
Miranda C, Yang Y, Henderson M, Stevens J, Santana-Rios G, Deinzer M (2000) Prenylflavonoids from hops inhibit the metabolic activation of the carcinogenic heterocyclic amine 2-amino-3-methylimidazol [4, 5-f] quinoline, mediated by cDNA-expressed human CYP1A2. Drug Metab Dispos 28:1297–1302
Murashige T, Skoog F (1962) A revised medium for rapid growth and bioassays with tobacco tissue cultures. Physiol Plant 15:473–497
Nesvadba V, Krofta K, Poloncikova Z (2011) New knowledge in Czech hop breeding. In: Seigner E (ed) Proceedings of the Scientific Commission International Hop Grower’s Convention. Scientific Commission Meeting. Lublin, Poland. http://www.lfl.bayern.de/ipz/hopfen/10585/sc_2011__proceedings.pdf. Accessed 31 July 2011
Pšenáková I, Gašpárková L, Faragó J (2009) Polyphenol and flavonoid contents of hop callus and cell suspension cultures. In: Seigner E (ed) Proceedings of the Scientific Commission International Hop Grower’s Convention. Scientific Commission Meeting. León, Spain. http://www.lfl.bayern.de/ipz/hopfen/10585/index.php#Tagung/Meeting%20in%20Le%C3%B3n,%20Spanien,%20Juni%202009. Accessed 31 July 2011
Rowan D, Cao M, Lin-Wang K, Cooney J, Jensen D, Austin P, Hunt M, Norling C, Hellens P, Schaffer R, Allan A (2009) Environmental regulation of leaf colour in red 35S:PAP1 Arabidopsis thaliana. New Phytol 182:102–115
Sato F, Inui T, Takemura T (2007) Metabolic engineering in isoquinoline alkaloid biosynthesis. Curr Pharm Biotech 8:211–218
Schijlen E, Ric de Vos C, van Tunen A, Bovy A (2004) Modification of flavonoid biosynthesis in crop plants. Phytochemistry 65:2631–2648
Stevens JF, Ivancic M, Hsu VL, Deinzer ML (1997) Prenylflavonoids from Humulus lupulus. Phytochemistry 44:1575–1585
Stracke R, Werber M, Weisshaar B (2001) The R2R3-MYB gene family in Arabidopsis thaliana. Curr Opin Plant Biol 4:447–456
Tagashira M, Watanabe M, Uemitsu N (1995) Antioxidative activity of hop bitter acids and their analogues. Biosci Biotech Biochem 59:740–742
Tian L, Dixon R (2006) Engineering isoflavone metabolism with an artificial bifunctional enzyme. Planta 224:496–507
Tohge T, Nishiyama Y, Hirai M, Yano M, Nakajima J, Awazuhara M, Inoue E, Takahashi H, Goodenowe D, Kitayama M, Noji M, Yamazaki M, Saito K (2005) Functional genomics by integrated analysis of metabolome and transcriptome of Arabidopsis plants over-expressing an MYB transcription factor. Plant J 42:218–235
Ürgeová E, Polívka L, Faragó J, Vaverková S (2011) Study of the production of secondary metabolites in shoot and callus cultures and field grown plants of Hop. In: Seigner E (ed) Proceedings of the Scientific Commission International Hop Grower’s Convention Scientific Commission Meeting. Lublin, Poland. http://www.lfl.bayern.de/ipz/hopfen/10585/sc_2011__proceedings.pdf. Accessed 31 July 2011
Verzele M, De Keukeleire D (1991) Chemistry and analysis of hop and beer bitter acids. Elsevier, Amsterdam p 417
Xie D-Y, Sharma S, Wright E, Wang Z-Y, Dixon R (2006) Metabolic engineering of proanthocyanidins through co-expression of anthocyanidin reductase and the PAP1 MYB transcription factor. Plant J 45:895–907
Yonekura-Sakakibara K, Tohge T, Matsuda F, Nakabayashi R, Takayama H, Niida R, Watanabe-Takahashi A, Inoue E, Saito K (2008) Comprehensive flavonol profiling and transcriptome coexpression analysis leading to decoding gene–metabolite in Arabidopsis. Plant Cell 20:2160–2176
Zhou L, Zeng N, Shi M, Xie D (2008) Development of tobacco callus cultures over expressing Arabidopsis PAP1/MYB75 transcription factor and characterization of anthocyanin biosynthesis. Planta 229:37–51
Zuluaga L, Gonzali S, Loreti E, Pucciariello C, Degl’innocenti E, Guidi L, Alpi A, Perata P (2008) Arabidopsis thaliana MYB75/PAP1 transcription factor induces anthocyanin production in transgenic tomato plants. Funct Plant Biol 35:606–618
Acknowledgments
The excellent technical assistance of Ute Born, Kathatrina Alheit and Carolin Aldinger is gratefully acknowledged, as well as the support of the Ministry of Nutrition and Agriculture of the State of Baden-Württemberg (Stuttgart, Germany), Hop Growers Cooperative (Tettnang, Germany) and the Czech Science Foundation (project GACR 521/08/0740). Dr. Mohamed A. Farag thanks the Alexander von Humboldt Foundation for supporting the research at the Leibniz Institute of Plant Biochemistry. The scholarship from the German Academic Exchange Service (DAAD) and partial support from the University of Costa Rica are gratefully acknowledged by A. Gatica.
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Communicated by F. Sato.
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Gatica-Arias, A., Farag, M.A., Stanke, M. et al. Flavonoid production in transgenic hop (Humulus lupulus L.) altered by PAP1/MYB75 from Arabidopsis thaliana L.. Plant Cell Rep 31, 111–119 (2012). https://doi.org/10.1007/s00299-011-1144-5
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DOI: https://doi.org/10.1007/s00299-011-1144-5