Is there a link between greening and light-enhanced glycoalkaloid accumulation in potato (Solanum tuberosum L) tubers?
Edwards, E.J., Saint, R.E. and Cobb, A.H.
Journal of the Science of Food and Agriculture. Volume 76, Number 3, Mar 1998. Pages 327-333.
1998
บทคัดย่อ
Potato (Solanum tuberosum L) tubers (cvs Pentland Dell and Record) were treated with the chlorophyll biosynthesis inhibitors 4-amino-5-fluoropentanoic acid (AFPA) and 3-amino-2,3-dihydrobenzoic acid (gabaculine), and subsequently exposed to daylight for up to 10 days prior to pigment and glycoalkaloid analysis. AFPA inhibited the accumulation of total chlorophyll (Chl) by between 50 and 70% in both cultivars throughout the duration of light exposure. The synthesis of Chl b was inhibited by over 80% in both cultivars. Neither inhibitor had a significant effect on light-enhanced glycoalkaloid accumulation. It is concluded that there is no direct metabolic link between Chl and glycoalkaloid biosynthesis.