Abstract
Valsa mali var. mali (Vmm), which is the causative agent of Valsa canker of apple tree, causes heavy damage to apple production in eastern Asia. In this article, we report Agrobacterium tumefaciens-mediated transformation (ATMT) of Vmm and expression of gfp (green fluorescent protein) in this fungus. The transformation system was optimized to a transformation efficiency of approximately 150 transformants/106 conidia, and a library containing over 4,000 transformants was generated. The tested transformants were mitotically stable. One hundred percent hph (hygromycin B phosphotransferase) integration into Vmm was identified by PCR and five single-copy integration of T-DNA was detected in the eighteen transformants by Southern blot. To our knowledge, this is the first report of ATMT of Vmm. Furthermore, this library has been used to identify genes involved in the virulence of the pathogen, and the transformation system may also be useful to the transformation of other species of the genus Valsa.
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References
Abe K, Kotoda N, Kato H, Soejima J (2007) Resistance sources to Valsa canker (Valsa ceratosperma) in a germplasm collection of diverse Malus species. Plant Breed 126:449–453
Abuodeh RO, Orbach MJ, Mandel MA, Das A, Galgiani JN (2000) Genetic transformation of Coccidioides immitis facilitated by Agrobacterium tumefaciens. J Infect Dis 181:2106–2110
Agrios GN (1997) Plant Pathology. Academic Press, San Diego, p 635
Bessho H, Tsuchiya S, Soejima J (1994) Screening methods of apple trees for resistance to Valsa canker. Euphytica 77:15–18
Betts MF, Tucker SL, Galadima N, Meng Y, Patel G, Li L, Donofrio N, Floyd A, Nolin S, Brown D, Mandel MA, Mitchell TK, Xu JR, Dean RA, Farman ML, Orbach MJ (2007) Development of a high throughput transformation system for insertional mutagenesis in Magnaporthe oryzae. Fungal Genet Biol 44:1035–1049
Bundock P, Dulk-Ras A, Beijersbergen A, Hooykaas PJ (1995) Trans-kingdom T-DNA transfer from Agrobacterium tumefaciens to Saccharomyces cerevisiae. EMBO J 14:3206–3214
Chen C, Li M, Shi X, Wang J (1987) Studies on the infection period of Valsa mali, the causal agent of apple tree canker. Acta Phytopathol Sinica 17:65–68
Chen X, Stone M, Schlagnhaufer C, Romaine CP (2000) A fruiting body tissue method for efficient Agrobacterium-mediated transformation of Agaricus bisporus. Appl Environ Microbiol 66:4510–4513
Choi J, Park J, Jeon J, Chi MH, Goh J, Yoo SY, Park J, Jung K, Kim H, Park SY, Rho HS, Kim S, Kim BR, Han SS, Kang S, Lee YH (2007) Genome-wide analysis of T-DNA integration into the chromosomes of Magnaporthe oryzae. Mol Microbiol 66:371–382
Combier JP, Melayah D, Raffier C, Gay G, Marmeisse R (2003) Agrobacterium tumefaciens-mediated transformation as a tool for insertional mutagenesis in the symbiotic ectomycorrhizal fungus Hebeloma cylindrosporum. FEMS Microbiol Lett 220:141–148
de Groot MJ, Bundock P, Hooykaas PJ, Beijersbergen AG (1998) Agrobacterium tumefaciens-mediated transformation of filamentous fungi. Nat Biotechnol 16:839–842
Fang L (2005) Agrobacterium tumefaciens-mediated transformation of Fusarium graminearum and Colletotrichum lagenarium and preliminary screening for pathogenicity mutants. Master’s Thesis, Zhejiang University, Zhejiang
Flowers JL, Vaillancourt LJ (2005) Parameters affecting the efficiency of Agrobacterium tumefaciens-mediated transformation of Colletotrichum graminicola. Curr Genet 48:380–388
Frandsen RJN (2011) A guide to binary vectors and strategies for targeted genome modification in fungi using Agrobacterium tumefaciens-mediated transformation. J Microbiol Methods 87:247–262
Gao J, Li YB, Ke XW, Kang ZS, Huang LL (2011) Development of genetic transformation system of Valsa mali of apple mediated by PEG. Acta Microbiol Sinica 51:1194–1199
Gao J (2011) Study on Agrobacterium tumefaciens-mediated and PEG-mediated transformation of Valsa mali. Master’s Thesis, Northwest A&F University, Yangling
Hallen HE, Walting R, Adams GC (2003) Taxonomy and toxicity of Conocybe lactea and related species. Mycol Res 107:969–979
Hanif M, Pardo AG, Gorfer M, Raudaskoski M (2002) T-DNA transfer and integration in the ectomycorrhizal fungus Suillus bovinus using hygromycin B as a selectable marker. Curr Genet 41:183–188
Ke XW, Huang LL, Han QM, Gao XN, Kang ZS (2013) Histological and cytological investigation s of the infection and colonization of apple bark by Valsa mali var. mali. Australasian Plant Pathol 42:85–93
Khang CH, Park S, Rho H, Lee Y, Kang S (2006) Agrobacterium tumefaciens-mediated transformation and mutagenesis of filamentous fungi Magnaporthe grisea and Fusarium oxysporum. In: Wang K (ed) Agrobacterium protocols, 2nd edn. Humana Press, Totowa, pp 403–420
Kimura A, Takano Y, Furusawa I, Okuno T (2001) Peroxisomal metabolic function is required for appressorium-mediated plant infection by Colletotrichum lagenarium. Plant Cell 13:1945–1957
Koganezawa H, Sakuma T (1982) Possible role of breakdown products of phloridzin in symptom development by Valsa ceratosperma. Ann Phytopathol Soc Japan 48:521–528
Lee DH, Lee SW, Chi KH, Kim DA, Uhm JY (2006) Survey on the occurrence of apple disease in Korea from 1992 to 2000. Plant Pathol J 22:375–380
Liu FC, Li MN, Wang YQ (1980) Pathogenic factors of Valsa mali—preliminary exploration of pectinases. China Fruits 4:45–49
Liu T, Liu LX, Jiang X, Hou JM, Fu KH, Zhou FH, Chen J (2010) Agrobacterium-mediated transformation as a useful tool for the molecular genetic study of the phytopathogen Curvularia lunata. Eur J Plant Pathol 126:363–371
Liu XY, Lü S, Wang Y, Wang K, Li TH, Han ZH, Zhang XZ (2011) Evaluation of resistance of malus germplasms to apple canker (Valsa ceratosperma). J Fruit Sci 28:843–848
Michielse CB, Hooykaas PJ, van den Hondel CAMJJ, Ram AFJ (2005) Agrobacterium-mediated transformation as a tool for functional genomics in fungi. Curr Genet 48:1–17
Michielse CB, Hooykaas PJ, van den Hondel CAMJJ, Ram AFJ (2008) Agrobacterium-mediated transformation of the filamentous fungus Aspergillus awamori. Nat Protoc 3:1671–1678
Mullins ED, Chen X, Romaine P, Raina R, Geiser DM, Kang S (2001) Agrobacterium-mediated transformation of Fusarium oxysporum: an efficient tool for insertional mutagenesis and gene transfer. Phytopathology 91:173–180
Münch S, Ludwid N, Floss DS, Sugi JA, Koszucka AM, Voll LM, Sonnewald U, Deising HB (2011) Identification of virulence genes in the corn pathogen Colletotrichum graminicola by Agrobacterium tumefaciens-mediated transformation. Mol Plant Pathol 12:43–55
Natsume H, Seto H, Otake N (1982) Studies on apple canker disease: the necrotic toxins produced by Valsa ceratosperma. Agric Biol Chem 46:2101–2106
Okuno T, Oikawa S, Goto T et al (1986) Structures and phytotoxicity of metabolites from Valsa ceratosperma. Agric Biol Chem 50:997–1001
Park SM, Kim DH (2004) Transformation of a filamentous fungus Cryphonectria parasitica using Agrobacterium tumefaciens. Biotechnol Bioprocess Eng 9:217–222
Rho HS, Kang S, Lee YH (2001) Agrobacterium tumefaciens-mediated transformation of the plant pathogenic fungus, Magnaporthe grisea. Mol Cells 12:407–411
Rogers CW, Challen MP, Green JR, Whipps JM (2004) Use of REMI and Agrobacterium-mediated transformation to identify pathogenicity mutants of the biocontrol fungus, Coniothyrium minitans. FEMS Microbiol Lett 241:207–214
Sambrook J, Russell WD (2001) Molecular cloning: a laboratory manual, 3rd edn. Cold Spring Harbor Laboratory, Cold Spring Harbor
Sugui JA, Chang YC, Kwon-Chung KJ (2005) Agrobacterium tumefaciens-mediated transformation of Aspergillus fumigatus: an efficient tool for insertional mutagenesis and targeted gene disruption. Appl Environ Microbiol 71:1798–1802
Takahara H, Tsuji G, Kubo Y, Yamamoto M, Toyoda K, Inagaki Y, Ichinose Y, Shiraishi T (2004) Agrobacterium tumefaciens-mediated transformation as a tool for random mutagenesis of Colletotrichum trifolii. J Gen Plant Pathol 70:93–96
Tamura O, Saito I (1982) Histopathological changes of apple bark infected by Valsa ceratosperma (Tode ex Fr.) Maire during dormant and growing periods. Nippon Shokubutsu Byori Gakkaiho 48:490–498
Wang J, Guo LQ, Zhang K, Wu Q, Lin JF (2008) Highly efficient Agrobacterium-mediated transformation of Volvariella volvacea. Bioresour Technol 99:8524–8527
Wang L, Zang R, Huang LL, Xie FQ, Gao XN (2005) The investigation of apple tree Valsa canker in Guanzhong region of Shaanxi province. J Northwest Sci-Tech Univ Agric For 33(Suppl):98–100
Wang XL, Wei JL, Huang LL, Kang ZS (2011) Re-evaluation of pathogens causing Valsa canker on apple in China. Mycologia 13:317–324
Wei JL, Huang LL, Gao ZP, Ke XW, Kang ZS (2010) Laboratory evaluation methods of apple tree Valsa canker disease caused by Valsa ceratosperma sensu Kobayashi. Acta Phytopathol Sin 40:14–20
Yamada M, Yawata K, Orino Y, Ueda S, Isogai Y, Taguchi G, Shimosaka M, Hashimoto S (2009) Agrobacterium tumefaciens-mediated transformation of antifungal lipopeptide producing fungus Coleophoma empetri F-11899. Curr Genet 55:623–630
Zang R (2006) Studies on Biological characters and pathogenicity of different isolates of cytospora isolated from apple tree. Master’s Thesis, Northwest A&F University, Yamgling
Zang R (2012) The phylogenetic relationship, molecular detection of apple tree Valsa canker causal agents in China, and population structure analysis using ISSR markers. Doctor’s Thesis, Northwest A&F University, Yamgling
Zheng ZL, Huang CH, Cao L, Xie CH, Han RC (2011) Agrobacterium tumefaciens-mediated transformation as a tool for insertional mutagenesis in medicinal fungus Cordyceps militaris. Fungal Biol 11:265–274
Acknowledgments
The authors thank Fengming Song (Zhejiang University, China) for providing the pBIG2RHPH2-GFP-GUS plasmid; Jinrong Xu (Purdue-NWAFU Joint Research Center, Northwest A&F University, China) for providing A. tumefaciens SK1044 harboring the binary vector pSK1044; undergranduates Ms. Dianru Wang, Mr. Jie Zhou, and Mr. Decheng Ren for their help in the collection of transformants; Ms. Na Song, a doctoral student, for microscopic observation; and Ms. Jing Gao for testing the hygromycin B sensitivity of Vmm. The authors also thank Dr. Jinrong Xu and Dr. Xiaoyu Qiang for correcting the grammatical and spelling errors as well as critical reading of the manuscript. This study was funded by the National Natural Science Foundation of China (No. 31171796), Specialized Research Fund for the Doctoral Program of Higher Education (20120204110002), and the Special Fund for Agro-scientific Research in the Public Interest of China (nyhyzx201203034-03).
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Hu, Y., Dai, Q., Liu, Y. et al. Agrobacterium tumefaciens-Mediated Transformation of the Causative Agent of Valsa canker of Apple Tree Valsa mali var. mali . Curr Microbiol 68, 769–776 (2014). https://doi.org/10.1007/s00284-014-0541-8
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DOI: https://doi.org/10.1007/s00284-014-0541-8