Abstract
Fusarium-infected sesame plants have significantly higher contents of amino acids (Asp, Thr, Ser, Asn, Glu, Gly, Ala, Val, Met, Ile, Leu, Tyr, Phe, Lys, His, Try, Arg, and Pro), compared with their respective levels in the healthy control. These higher levels of amino acids induced by Fusarium infection were decreased when Penicillium was co-inoculated with Fusarium. Compared with the control, Fusarium-infected plants showed higher contents of palmitic (8 %), stearic (8 %), oleic (7 %), and linolenic acids (4 %), and lower contents of oil (4 %) and linoleic acid (11 %). Co-inoculation with Penicillium mitigated the Fusarium-induced changes in fatty acids. The total chlorophyll content was lower in Fusarium- and Penicillium-infected plants than in the healthy control. The accumulation of carotenoids and γ-amino butyric acid in Fusarium-infected plants was slightly decreased by co-inoculation with Penicillium. Sesamin and sesamolin contents were higher in Penicillium- and Fusarium- infected plants than in the control.
Purpose of work:
To clarify the mechanism of the biocontrol effect of Penicillium against Fusarium by evaluating changes in primary and secondary metabolite contents in sesame plants.
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The authors wish to thank National Institute of Crop Science, Rural Development Administration, Republic of Korea for financial assistance from Post doctoral Fellowship Program (2012).
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Radhakrishnan, R., Pae, SB., Shim, KB. et al. Penicillium sp. mitigates Fusarium-induced biotic stress in sesame plants. Biotechnol Lett 35, 1073–1078 (2013). https://doi.org/10.1007/s10529-013-1177-7
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DOI: https://doi.org/10.1007/s10529-013-1177-7