Claim · model-written summary
Gibberellic acid pretreatment increased reducing sugar contents by 20 % in Z. elliottiana leaves relative to unpulsed leaves.
_Zantedeschia_elliottiana.jpg?width=60){kind=small}
Zantedeschia elliottianaVerbatim
e2“Pulsed and unpulsed leaves were kept either in water or in the preservative”
e3“Pretreatment with BA did not counteract a decrease in reducing sugar contents”
e4“in the GA3-treated leaves sugar loss was prevented in Z. aethiopica and a 20 % increase occurred in Z. elliottiana”
Title
E. Skutnik; J. Rabiza-Świder; M. Wachowicz; et al. http://www.hortorumcultus.actapol.net/pub/3_2_219.pdf 2004. doi:10.24326/asphc.2004.2.23
Other claims from this paper (9)
- Observation In both Zantedeschia species, reducing sugar contents initially rose during senescence in vases.
- Observation In both Zantedeschia species, reducing sugar contents dropped to 60–80 % of the initial levels during senescence in vases.
- Intervention effect Pretreatment with benzyladenine did not prevent the decrease in reducing sugar contents relative to unpulsed leaves.
- Intervention effect Gibberellic acid pretreatment prevented sugar loss in Z. aethiopica leaves relative to unpulsed leaves.
- Intervention effect Placing leaves in the sugar-containing solution caused a loss of reducing sugars to 12 % of the initial level in Z. aethiopica compared with water.
- Intervention effect Placing leaves in the sugar-containing solution caused a loss of reducing sugars that was less pronounced in Z. elliottiana (52 % of the initial value) compared with water.
- Mechanism The results do not support sugar depletion as a cause of senescence of detached leaves in the two Zantedeschia species.
- Intervention effect Gibberellic acid was more effective than cytokinin in mitigating the preservative-induced loss of reducing sugars.
- Intervention effect Cytokinin pretreatment did not mitigate the negative effect of the preservative on reducing sugar losses.