E-ISSN 2090-0503 | ISSN 1687-7497
 
2023, Vol: 19, Issue: 2
19 / 2Current Issue Online FirstArchiveAims and ScopeAbstracting & IndexingMost Accessed ArticlesMost Downloaded ArticlesMost Cited Articles

Original Research 


EFFECT OF PHOSPHOROUS DEFICIENCY ON GROWTH AND SOME METABOLIC ACTIVITIES IN THE GREEN ALGA DUNALIELLA PARVA

Hanan Abd-Alla Said.

Abstract
Dunaliella parva cells were cultured under conditions of either phosphorous (P) deficiency or nutrient sufficiency. Under phosphorous deficiency the number of cells decreased by 48.1% while rate of growth decreased by 1.05% and generation time increased by 1.5 day compared to nutrient sufficient medium. The content of chlorophyll fractions, β-carotene, glycerol, total carbohydrates and proteins were also significantly reduced in response to phosphorus deficiency. The results cleared that activity of photosynthesis and respiration in cultures with phosphorous increased gradually till the 12th day then slightly decreased at the 16th day. Phosphorous deficiency resulted in 36.8% lower rate of respiration and 65.5% decline in rate of photosynthesis at the 16th day of culturing compared to control. The results cleared also that under phosphorous deficiency growth measured as cell count of D. parva, was the most sensitive parameter followed by photosynthesis then respiration.

Key words: Algae, Dunaliella parva, Growth rate, Phosphorous deficiency, Photosynthesis, Respiration


 
ARTICLE TOOLS
Abstract
PDF Fulltext
How to cite this articleHow to cite this article
Citation Tools
Related Records
 Articles by Hanan Abd-Alla Said
on Google
on Google Scholar

How to Cite this Article
Pubmed Style

Hanan Abd-Alla Said. EFFECT OF PHOSPHOROUS DEFICIENCY ON GROWTH AND SOME METABOLIC ACTIVITIES IN THE GREEN ALGA DUNALIELLA PARVA . Egypt. J. Exp. Biol. (Bot.). 2011; 7(2): 293-297.

Web Style

Hanan Abd-Alla Said. EFFECT OF PHOSPHOROUS DEFICIENCY ON GROWTH AND SOME METABOLIC ACTIVITIES IN THE GREEN ALGA DUNALIELLA PARVA . https://www.egyseb.net//?mno=186956 [Access: December 05, 2023].

AMA (American Medical Association) Style

Hanan Abd-Alla Said. EFFECT OF PHOSPHOROUS DEFICIENCY ON GROWTH AND SOME METABOLIC ACTIVITIES IN THE GREEN ALGA DUNALIELLA PARVA . Egypt. J. Exp. Biol. (Bot.). 2011; 7(2): 293-297.


Vancouver/ICMJE Style

Hanan Abd-Alla Said. EFFECT OF PHOSPHOROUS DEFICIENCY ON GROWTH AND SOME METABOLIC ACTIVITIES IN THE GREEN ALGA DUNALIELLA PARVA . Egypt. J. Exp. Biol. (Bot.). (2011), [cited December 05, 2023]; 7(2): 293-297.


Harvard Style

Hanan Abd-Alla Said (2011) EFFECT OF PHOSPHOROUS DEFICIENCY ON GROWTH AND SOME METABOLIC ACTIVITIES IN THE GREEN ALGA DUNALIELLA PARVA . Egypt. J. Exp. Biol. (Bot.), 7 (2), 293-297.


Turabian Style

Hanan Abd-Alla Said. 2011. EFFECT OF PHOSPHOROUS DEFICIENCY ON GROWTH AND SOME METABOLIC ACTIVITIES IN THE GREEN ALGA DUNALIELLA PARVA . THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany), 7 (2), 293-297.


Chicago Style

Hanan Abd-Alla Said. "EFFECT OF PHOSPHOROUS DEFICIENCY ON GROWTH AND SOME METABOLIC ACTIVITIES IN THE GREEN ALGA DUNALIELLA PARVA ." THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany) 7 (2011), 293-297.


MLA (The Modern Language Association) Style

Hanan Abd-Alla Said. "EFFECT OF PHOSPHOROUS DEFICIENCY ON GROWTH AND SOME METABOLIC ACTIVITIES IN THE GREEN ALGA DUNALIELLA PARVA ." THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany) 7.2 (2011), 293-297. Print.


APA (American Psychological Association) Style

Hanan Abd-Alla Said (2011) EFFECT OF PHOSPHOROUS DEFICIENCY ON GROWTH AND SOME METABOLIC ACTIVITIES IN THE GREEN ALGA DUNALIELLA PARVA . THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany), 7 (2), 293-297.


Author LoginReviewer LoginAbout PublisherEditorial PoliciesEditorial Review PolicyPeer Review PolicyEditorial & Peer Review ProcessPublication Ethics and Publication Malpractice StatementConflict of Interest PolicyPlagiarism PolicyProtection of Research Participants (Statement On Human And Animal Rights)Privacy PolicySelf-Archiving PoliciesTerms of UseLicense Information

About THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany)

The Egyptian Journal of Experimental Biology (Botany) publishes original scientific research concerning botanical sciences (Morphology, Taxonomy, Gen ... Read more.



For best results, please use Internet Explorer or Google Chrome.

Contact Information

egysebbz@gmail.com