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Cho, Moo Je
Ulsan National Institute of Science and Technology
Research Interests
  • Calcium Signaling

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Pn-AMPs, the hevein-like proteins from Pharbitis nil confers disease resistance against phytopathogenic fungi in tomato, Lycopersicum esculentum

Cited 21 times inthomson ciCited 19 times inthomson ci
Title
Pn-AMPs, the hevein-like proteins from Pharbitis nil confers disease resistance against phytopathogenic fungi in tomato, Lycopersicum esculentum
Author
Lee, OSLee, BPark, NKoo, JCKim, YHPrasad, TKarigar, CChun, HJJeong, BRKim, DHNam, JYun, JGKwak, SSCho, Moo JeYun, DJ
Keywords
Antifungal activity; Convolvulaceae; Fungal resistance; Hevein-like proteins; Lycopersicon esculentum; Pharbitis nil; Pn-AMP; Solanaceae
Issue Date
200304
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
PHYTOCHEMISTRY, v.62, no.7, pp.1073 - 1079
Abstract
The antifungal activity of hevein-like proteins has been associated with their chitin-binding activities. Pn-AMP1 and Pn-AMP2, two hevein homologues from Pharbitis nil, show in vitro antifungal activities against both chitin and non-chitin containing fungi. Purified Pn-AMPs retained antifungal activities only under non-reducing conditions. When Pn-AMP2 cDNA was constitutively expressed in tomato (Lycopersicon esculentum) plants under the control of CaMV35S promoter, the transgenic plants showed enhanced resistance against both the non-chitinous fungus Phytophthora capsici, and the chitin-containing fungus Fusarium oxysporum. Thus, the chitin component in the fungal cell wall is not an absolute requirement for Pn-AMP's antifungal activities. These results when considered together suggest that Pn-AMPs have the potential for developing transgenic plants resistant to a wide range of phytopathogenic fungi.
URI
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DOI
http://dx.doi.org/10.1016/S0031-9422(02)00668-4
ISSN
0031-9422
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