lnduction of Resistance to Botrytis cinerea Pers in Pepper by p-Aminobutyric Acid
Articles > Article · 2003
Authors: Necip TOSUN, Lale AKTAŞ
The Journal of Turkish Phytopathological Society, Other Refereed National Journals, National, 2003, vol 32, pp 175-184
Summary
<p>Using pepper seedlings, the nonprotein amino acid, Dl-beta-amino-n-butyric acid (BABA) was assayed for its ability to induce resistance in pepper against gray mould disease caused by Botrytis cinerea.It was found that foliar spray of BABA to leaves confrolled the gray mould infection by 59.37o. Moreover, the synergistic interaction between BABA and subsequent treatment of fungicide (fenhexamide) gave a higher protection rale reaching to 82.27o when compared with the single Eeatments of BABA and fungicide. The enhanced resistance of BABA-reated plants was associated with significant increases in the activities of PR proteins chitinases (PR-3), p-1,3 glucanase (PR-2) and peroxidase. Accumulation of PR proteins and peroxidase may play an essential role in BABA's possible mode of action. Besides the induction of disease resistance, BABA caused a significant increase in the content of photosynthetic pigments (chlorophyl a, chlorophyl b and carotenoids) and root heights in reated pepper plants.<br></p>