Habib S. H., Ooi S.-E., Novák O., Tarkowská D., Rolčík J., Doležal K., Syed-Alwee S. S. R., Ho C.-L., Namasivayam P.
PLANT GROWTH REGULATION 68: 313-317, 2012

Klíčová slova: Truncated leaf syndrome, Boron, Zinc, Cytokinin, Brassinosteroid, Brassinolide, Oil palm, Abnormality
Abstrakt: Comparative mineral and hormonal analyses were made on tissue culture derived truncated leaf syndrome and wild type oil palm seedlings. Mineral analysis confirmed that Boron, Zinc and chlorophyll levels were significantly lower in truncated leaf syndrome leaves than those of wild type. Hormonal analysis also revealed various cytokinin derivatives such as trans-zeatin, trans-zeatin riboside, trans-zeatin O-glucoside and trans-zeatin riboside 5´-monophosphate were significantly higher in truncated leaf syndrome leaves compared to wild type leaves. Brassinolide level was also significantly higher in truncated leaf syndrome leaves than those of the wild type. These observations suggest that the truncated leaf syndrome abnormality could be associated to high cytokinin and brassinosteroid production which affects the uptake of Boron and Zinc.
DOI: 10.1007/s10725-012-9707-1 Autoři z ÚEB: Ondřej Novák, Danuše Tarkowská