ANTIFUNGAL PROPERTIES OF LECTIN AND NEW CHITINASES FROM POTATO-TUBERS

Authors
GOZIA O CIOPRAGA J BENTIA T LUNGU M ZAMFIRESCU I TUDOR R ROSEANU A NITU F
Citation
O. Gozia et al., ANTIFUNGAL PROPERTIES OF LECTIN AND NEW CHITINASES FROM POTATO-TUBERS, Comptes rendus de l'Academie des sciences. Serie 3, Sciences de la vie, 316(8), 1993, pp. 788-792
Citations number
15
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie 3, Sciences de la vie → ACNP
ISSN journal
07644469
Volume
316
Issue
8
Year of publication
1993
Pages
788 - 792
Database
ISI
SICI code
0764-4469(1993)316:8<788:APOLAN>2.0.ZU;2-7
Abstract
We have purified from potato tubers, the lectin STA devoid of chitinas e activity and two chitinases devoid of lectin activity. Both enzymes are 16 kDa glycoproteins, and probably belong to a new family of plant chitinases. The respective antifungal properties of lectin and chitin ases were studied by following their effects against early development al stages of Fusarium oxysporum, a fungal potato pathogen. Here we dem onstrate that : (1) lectin does not inhibit mycelial growth but irreve rsibly inhibits conidia germination and alters the germ tubes ; and (2 ) chitinases block mycelial growth as well as conidia germination and lyse germ tubes.