Avtor/Urednik		Kovač, M; Ravnikar, M
Naslov		Sucrose and jasmonic acid interact in photosynthetic pigment metabolism and development of potato (Solanum tuberosum L. cv. Sante) grown in vitro
Tip		članek
Vir		Plant Growth Regul
Vol. in št.		Letnik 24
Leto izdaje		1998
Obseg		str. 101-7
Jezik		eng
Abstrakt		Potato (Salanum tuberosum L., cv. Sante) plantlets grown from stem node culture on medium supplemented with 90 mM sucrose accumulated lower amounts of photosynthetic pigments per mg dry weight in comparison to those grown on 30 mM sucrose. Addition of 0.1, 1 or micro M jasmonic acid (JA) to the medium resulted in a decrease of chlorophylls and carotenoids in the plantlets grown on either sucrose concentration. JA treatment induced de-epoxidation of violaxanthin to antheraxanthin and zeaxanthin only in those plantlets grown on a higher amount of sucrose in which hyperhydric symptoms were observed. The synergistic effect of JA and sucrose was clearly demonstrated in the plantlets grown on 90 mM sucrose and 1 micro M JA. This was possibly due to overaccumulation of sucrose, the consequence of the most developed root system, and/or to stimulated water and solute transport by other mechanisms.
Deskriptorji		POTATOES PLANT GROWTH REGULATORS SUCROSE CHLOROPHYLL CAROTENOIDS TISSUE CULTURE XANTHOPHYLL