Pathogenic fungi intercepted in introduced transgenics during 2006-2013

National Bureau of Plant Genetic Resources (NBPGR) New Delhi is the nodal agency for introduction of exotic germplasm including transgenics for research purpose in India. A range of transgenic crops have been developed across the world which are either herbicide-tolerant or insect resistant, or tolerant to drought/ stress or offering nutritional benefits, etc. India is also undertaking research in developing transgenics in different crops. During 2006-2013, a total of 4557 transgenic seed samples of various crops were introduced from different countries. Seed health testing of these samples for quarantine clearance resulted in the detection of eight pathogenic fungi viz., Alternaria padwickii in Oryza sativa; Bipolaris maydis in Zea mays; B. oryzae and B. sorokiniana in O. sativa; Fusarium verticillioides in Arabidopsis thaliana, Brassica spp., Gossypium hirsutum, Solanum esculentum, O. sativa and Z. mays; F. oxysporum f. sp. vasinfectum in G. hirsutum; Phoma sorghina in O. sativa and Arabidopsis thaliana; Rhizoctonia solani in O. sativa and Zea mays. All the 740 samples found infected were salvaged before their release to the indentors.

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