Growth and morphological features of locally isolated microalgae Cyclotella and Pavlova

Microalgae are a vast class of simple unicellular or multicellular autotrophic life forms with non-complex growth demands. Two factors that are important in preliminary assessments of microalgae are their growth profile and morphological characteristics. This study aimed to analyze the growth profil...

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Main Authors: Azaman, Siti Nor Ani, M. Yusoff, Fatimah, Abd Rahim, Nur Maisarah
Format: Article
Published: Institut Biosains, Universiti Putra Malaysia 2023
Online Access:http://psasir.upm.edu.my/id/eprint/108127/
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author Azaman, Siti Nor Ani
M. Yusoff, Fatimah
Abd Rahim, Nur Maisarah
author_facet Azaman, Siti Nor Ani
M. Yusoff, Fatimah
Abd Rahim, Nur Maisarah
author_sort Azaman, Siti Nor Ani
building UPM Institutional Repository
collection Online Access
description Microalgae are a vast class of simple unicellular or multicellular autotrophic life forms with non-complex growth demands. Two factors that are important in preliminary assessments of microalgae are their growth profile and morphological characteristics. This study aimed to analyze the growth profile and the morphological characteristics of two local microalgae; Cyclotella meneghiniana and Pavlova noctivaga.Both microalgae were grown in Bolds Basal Medium (BBM) with 10 inoculation and incubated at constant room temperature (25±1 °C) under the light (100 ¼mol photons m-1 s-1) in a 12h dark/12h light cycle for 21 days. Growth parameters such as specific growth rate and generation time were determined and their morphological feature was investigated using a light microscope and scanning electron microscope (SEM). From this study, C. meneghiniana showed 0.811 day-1 specific growth rate and 0.854 day-1 generation time, while P. noctivagashowed specific growth rate and generation time at 0.506 day-1 and 1.37 day-1, respectively. Preliminary morphological characterization using a scanning electron microscope for P. noctivaga showed a spherical shape with two unequal flagella. Meanwhile, C. meneghiniana showed a cylindrical shape under the light microscope. Besides, there are 12 radiating striae with indistinctive fultoportula in the center region, at both ends of the Cyclotella cell which was clearly seen under the scanning electron microscope. The information gained from the growth profiling study such as the growth rate, doubling time, specific growth rate and the morphology of the microalgae can be used and manipulated for future research.
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spelling upm-1081272024-09-10T07:30:47Z http://psasir.upm.edu.my/id/eprint/108127/ Growth and morphological features of locally isolated microalgae Cyclotella and Pavlova Azaman, Siti Nor Ani M. Yusoff, Fatimah Abd Rahim, Nur Maisarah Microalgae are a vast class of simple unicellular or multicellular autotrophic life forms with non-complex growth demands. Two factors that are important in preliminary assessments of microalgae are their growth profile and morphological characteristics. This study aimed to analyze the growth profile and the morphological characteristics of two local microalgae; Cyclotella meneghiniana and Pavlova noctivaga.Both microalgae were grown in Bolds Basal Medium (BBM) with 10 inoculation and incubated at constant room temperature (25±1 °C) under the light (100 ¼mol photons m-1 s-1) in a 12h dark/12h light cycle for 21 days. Growth parameters such as specific growth rate and generation time were determined and their morphological feature was investigated using a light microscope and scanning electron microscope (SEM). From this study, C. meneghiniana showed 0.811 day-1 specific growth rate and 0.854 day-1 generation time, while P. noctivagashowed specific growth rate and generation time at 0.506 day-1 and 1.37 day-1, respectively. Preliminary morphological characterization using a scanning electron microscope for P. noctivaga showed a spherical shape with two unequal flagella. Meanwhile, C. meneghiniana showed a cylindrical shape under the light microscope. Besides, there are 12 radiating striae with indistinctive fultoportula in the center region, at both ends of the Cyclotella cell which was clearly seen under the scanning electron microscope. The information gained from the growth profiling study such as the growth rate, doubling time, specific growth rate and the morphology of the microalgae can be used and manipulated for future research. Institut Biosains, Universiti Putra Malaysia 2023 Article PeerReviewed Azaman, Siti Nor Ani and M. Yusoff, Fatimah and Abd Rahim, Nur Maisarah (2023) Growth and morphological features of locally isolated microalgae Cyclotella and Pavlova. Malaysian Journal of Microscopy, 19 (2). 73 - 84. ISSN 1823-7010 https://malaysianjournalofmicroscopy.org/ojs/index.php/mjm/issue/view/27
spellingShingle Azaman, Siti Nor Ani
M. Yusoff, Fatimah
Abd Rahim, Nur Maisarah
Growth and morphological features of locally isolated microalgae Cyclotella and Pavlova
title Growth and morphological features of locally isolated microalgae Cyclotella and Pavlova
title_full Growth and morphological features of locally isolated microalgae Cyclotella and Pavlova
title_fullStr Growth and morphological features of locally isolated microalgae Cyclotella and Pavlova
title_full_unstemmed Growth and morphological features of locally isolated microalgae Cyclotella and Pavlova
title_short Growth and morphological features of locally isolated microalgae Cyclotella and Pavlova
title_sort growth and morphological features of locally isolated microalgae cyclotella and pavlova
url http://psasir.upm.edu.my/id/eprint/108127/
http://psasir.upm.edu.my/id/eprint/108127/