• Home
  • Browse
    • Current Issue
    • By Issue
    • By Author
    • By Subject
    • Author Index
    • Keyword Index
  • Journal Info
    • About Journal
    • Aims and Scope
    • Editorial Board
    • Publication Ethics
    • Indexing and Abstracting
    • Related Links
    • FAQ
    • Peer Review Process
    • News
  • Guide for Authors
  • Submit Manuscript
  • Reviewers
  • Contact Us
 
  • Login
  • Register
Home Articles List Article Information
  • Save Records
  • |
  • Printable Version
  • |
  • Recommend
  • |
  • How to cite Export to
    RIS EndNote BibTeX APA MLA Harvard Vancouver
  • |
  • Share Share
    CiteULike Mendeley Facebook Google LinkedIn Twitter
Egyptian Journal of Botany
arrow Articles in Press
arrow Current Issue
Journal Archive
Volume Volume 60 (2020)
Volume Volume 59 (2019)
Volume Volume 58 (2018)
Volume Volume 57 (2017)
Volume Volume 56 (2016)
Issue Issue 1
Issue Issue 3
Issue Issue 2
Volume Volume 55 (2015)
Volume Volume 54 (2014)
(2016). Effect of some Abiotic Factors on Growth, Glycerol and β-carotene Accumulation by Dunaliella bardawil. Egyptian Journal of Botany, 56(3), 559-571. doi: 10.21608/ejbo.2016.2718
. "Effect of some Abiotic Factors on Growth, Glycerol and β-carotene Accumulation by Dunaliella bardawil". Egyptian Journal of Botany, 56, 3, 2016, 559-571. doi: 10.21608/ejbo.2016.2718
(2016). 'Effect of some Abiotic Factors on Growth, Glycerol and β-carotene Accumulation by Dunaliella bardawil', Egyptian Journal of Botany, 56(3), pp. 559-571. doi: 10.21608/ejbo.2016.2718
Effect of some Abiotic Factors on Growth, Glycerol and β-carotene Accumulation by Dunaliella bardawil. Egyptian Journal of Botany, 2016; 56(3): 559-571. doi: 10.21608/ejbo.2016.2718

Effect of some Abiotic Factors on Growth, Glycerol and β-carotene Accumulation by Dunaliella bardawil

Article 1, Volume 56, Issue 3, Summer 2016, Page 559-571  XML PDF (518.3 K)
Document Type: Original Article
DOI: 10.21608/ejbo.2016.2718
Abstract
 
UNALIELLA bardawil
 
can produce and accumulate large amounts of glycerol and β-carotene in response to stress conditions. The effect of pH, salinity, light intensity and algal inocula as stress factors on growth, β-carotene and glycerol production in D. bardawil was assessed in the present study. The growth profile showed linear relationship for chlorophyll a content, optical density measurementsand cell count with time up to the end of the experiment (42 days). The mean growth rate, relative growth rate and number of recycling reached their maximum values after 4 days of growth while generation time recorded the least value at the same time. D. bardawil can grow in wide pH range (5.5-9.5) with maximum growth (chlorophyll a and cell count) and glycerol content at pH 7.5 whereas the best pH value for β-carotene production was 8.5. Increasing algal inoculum caused significant increase in growth and β-carotene content while non significant increase in glycerol was observed. Regarding salinity stress, 4 M NaCl was the best concentration for glycerol production and 2.5 M NaCl for growth and β-carotene accumulation. High light stress (292.5 μE m-2 s-1) enhanced β-carotene production and the ratio of β-carotene to chlorophyll a reached 1.59.
 
Keywords
Dunaliella bardawil; Β-CAROTENE; glycerol; Stress factors; salinity; Light intensity; pH; algal inoculum
Statistics
Article View: 160
PDF Download: 270
Home | Glossary | News | Aims and Scope | Sitemap
Top Top

Journal Management System. Designed by NotionWave.