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Paper Information

Journal:   JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY   FALL 2009 , Volume 4 , Number 3 (15); Page(s) 10 To 17.
 
Paper: 

THE EFFECT OF CONTINUOUS ILLUMINATION AND SHORT DARK DURATIONS ON GROWTH AND PIGMENT COMPOSITION OF GREEN ALGAE SCENEDESMUS SP. FROM GOLESTAN PROVINCE- IRAN

 
 
Author(s):  HARATI P.*, SHOKRAVI SH., SATEEI A., AZIZI PANIZ
 
* DEP. OF BIOLOGY, ISLAMIC AZAD UNIV., GORGAN BRANCH, GORGAN, IRAN
 
Abstract: 

Chlorophytean alga Scenedesmus, seems a potent strain considering both agricultural and nutriotional biotechnology. Unfortunately we have no report about this micrroalga at Golestan Province. Each economic program using this microalgae in applied purposes, need exact biological characterization including ecophysioligical researches. Considering these purposes, viability, growth, and pigment composition of one of the species of this genus collected from paddy-field of Golestan Province have been studied under continuous and below two hours light dark photoperiods. Collection have been done from paddy fields of Golestan Province at one year duration. After isolation, Scenedesmus sp. Has been incubated under 2 umolquanta m-2 s-1, both continuous at then with dark durations (30, 60 and 90 minutes). Viability, growth and pigment composition have been studied at the species. Results showed that, the species remain variable at continuous and non continuous illumination conditions as a whole. The growth specific rate reach to the highest rate at one hours dark condition. 30 minutes dark photoperiods and continuous dark cause almost similar conditions and decrease the growth rate sharply. Reproductive cycle accelerate significantly at 30 minutes photoperiods and continuous illumination. Chlorophyll a production rate decrease at 30 minutes dark photoperiods comparing highest light durations. The amount of Chlorophyll a was highest at continuous light and 60 minutes photoperiods.

 
Keyword(s): GOLESTAN, GREEN ALGAE, GROWTH, PADDY-FIELD, SCENEDESMUS, VIABILITY, PIGMENT
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

HARATI, P., & SHOKRAVI, S., & SATEEI, A., & AZIZI, P. (2009). THE EFFECT OF CONTINUOUS ILLUMINATION AND SHORT DARK DURATIONS ON GROWTH AND PIGMENT COMPOSITION OF GREEN ALGAE SCENEDESMUS SP. FROM GOLESTAN PROVINCE- IRAN. JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY, 4(3 (15)), 10-17. https://www.sid.ir/en/journal/ViewPaper.aspx?id=193865



Vancouver: Copy

HARATI P., SHOKRAVI SH., SATEEI A., AZIZI PANIZ. THE EFFECT OF CONTINUOUS ILLUMINATION AND SHORT DARK DURATIONS ON GROWTH AND PIGMENT COMPOSITION OF GREEN ALGAE SCENEDESMUS SP. FROM GOLESTAN PROVINCE- IRAN. JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY. 2009 [cited 2021July27];4(3 (15)):10-17. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=193865



IEEE: Copy

HARATI, P., SHOKRAVI, S., SATEEI, A., AZIZI, P., 2009. THE EFFECT OF CONTINUOUS ILLUMINATION AND SHORT DARK DURATIONS ON GROWTH AND PIGMENT COMPOSITION OF GREEN ALGAE SCENEDESMUS SP. FROM GOLESTAN PROVINCE- IRAN. JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY, [online] 4(3 (15)), pp.10-17. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=193865.



 
 
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