Avtor/Urednik		Germ, Mateja; Drmaž, Darinka; Šiško, Milijan; Gaberščik, Alenka
Naslov		Effects ov UV-B radiation on green alga Scenedesmus quadricauda: growth rate, UV-B absorbing compounds and potential respiration in phosphorus rich and phosphorus poor medium
Tip		članek
Vir		Phyton-ann Rei Bot A
Vol. in št.		Letnik 42, št. 1
Leto izdaje		2002
Obseg		str. 25-37
Jezik		eng
Abstrakt		This contribution summarizes the effect of UV-B radiation on growth, amount of photosynthetic pigments, production of total UV screening compounds and terminal electron transport system (ETS) activity in green alga Scenedesmus quadricauda grown in phosphorus rich and poor media. An image Analysis System was used to estimate the growth rate of alga. The increasing UV-B radiation dose affected growth rate of alga. The production of total UV B absorbing compounds as a protective screen was stimulated by increasing the UV B dose. The amount of photosynthetic pigments showed a slight increase. Terminal electron transport system activity revealed enhanced potential respiration due to UV B. The positive responses were more pronounced in alga growing in phosphorus poor medium.
Deskriptorji		ALGAE, GREEN ULTRAVIOLET RAYS PHOSPHORUS ELECTRON TRANSPORT CHLOROPHYLL CULTURE MEDIA