Phenotypic Diversification Of Terrestrial Cyanobacteria From Selected Habitats On Signy Island, South Orkney Islands, Antarctica

A floristic study was conducted on cyanobacteria from terrestrial habitats in Signy Island (60.7170° S, 45.6000° W), South Orkney Islands during the expedition of British Antarctic Survey (BAS) in austral summer of 2015/2016. Samples were collected following the previous 120 locations that was provi...

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Main Author:	Radzi, Ranina Alya Mohamad
Format:	Thesis
Language:	English
Published:	2020
Subjects:	QH1 Natural history (General - Including nature conservation geographical distribution)
Online Access:	http://eprints.usm.my/54176/1/RANINA%20ALYA%20BINTI%20MOHAMAD%20RADZI%20-%20TESIS.pdf
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spelling	my-usm-ep.541762022-08-18T06:51:22Z Phenotypic Diversification Of Terrestrial Cyanobacteria From Selected Habitats On Signy Island, South Orkney Islands, Antarctica 2020-12 Radzi, Ranina Alya Mohamad QH1 Natural history (General - Including nature conservation, geographical distribution) A floristic study was conducted on cyanobacteria from terrestrial habitats in Signy Island (60.7170° S, 45.6000° W), South Orkney Islands during the expedition of British Antarctic Survey (BAS) in austral summer of 2015/2016. Samples were collected following the previous 120 locations that was provided by Broady (1979). Thirty seven out of 120 collection sites established by Broady (1979) were successfully obtained and compared in this study. Changes in the cyanobacteria community at sites previously studied by Broady (1979) will provide excellent baseline information on the status of Antarctic terrestrial cyanobacteria diversity and dispersal. It is crucial to understand how the Antarctic life form is responding to current environmental change and what the continent was like in the past. This study has integrated traditional morphological and modern molecular taxonomic approaches providing new insights into the taxonomy of Antarctic cyanobacteria. Seventeen morphospecies belonging to 14 genera; Chamaesiphon, Cyanosarcina, Desmonostoc, Leptolyngbya, Microcoleus, Nodosilinea, Nostoc, Oscillatoria, Phormidium, Phormidesmis, Pseudanabaena, Synechocystis, Trichocoleus and Wilmottia have been recorded with robust descriptions by using streaking and most probable number techniques. Ten morphospecies recorded were similar to records by Broady (1979). Seven of the morphospecies; Leptolyngbya cf. subcapitata, Nodosilinea signiensis, Oscillatoria cf. subsala, Phormidium uncinatum, Trichocoleus cf. hospitus, Wilmotia murrayi M1 and Wilmottia murrayi M2 are new records for Signy Island. 2020-12 Thesis http://eprints.usm.my/54176/ http://eprints.usm.my/54176/1/RANINA%20ALYA%20BINTI%20MOHAMAD%20RADZI%20-%20TESIS.pdf application/pdf en public masters Perpustakaan Hamzah Sendut Pusat Pengajian Sains Kajihayat
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QH1 Natural history (General - Including nature conservation geographical distribution)
spellingShingle	QH1 Natural history (General - Including nature conservation geographical distribution) Radzi, Ranina Alya Mohamad Phenotypic Diversification Of Terrestrial Cyanobacteria From Selected Habitats On Signy Island, South Orkney Islands, Antarctica
description	A floristic study was conducted on cyanobacteria from terrestrial habitats in Signy Island (60.7170° S, 45.6000° W), South Orkney Islands during the expedition of British Antarctic Survey (BAS) in austral summer of 2015/2016. Samples were collected following the previous 120 locations that was provided by Broady (1979). Thirty seven out of 120 collection sites established by Broady (1979) were successfully obtained and compared in this study. Changes in the cyanobacteria community at sites previously studied by Broady (1979) will provide excellent baseline information on the status of Antarctic terrestrial cyanobacteria diversity and dispersal. It is crucial to understand how the Antarctic life form is responding to current environmental change and what the continent was like in the past. This study has integrated traditional morphological and modern molecular taxonomic approaches providing new insights into the taxonomy of Antarctic cyanobacteria. Seventeen morphospecies belonging to 14 genera; Chamaesiphon, Cyanosarcina, Desmonostoc, Leptolyngbya, Microcoleus, Nodosilinea, Nostoc, Oscillatoria, Phormidium, Phormidesmis, Pseudanabaena, Synechocystis, Trichocoleus and Wilmottia have been recorded with robust descriptions by using streaking and most probable number techniques. Ten morphospecies recorded were similar to records by Broady (1979). Seven of the morphospecies; Leptolyngbya cf. subcapitata, Nodosilinea signiensis, Oscillatoria cf. subsala, Phormidium uncinatum, Trichocoleus cf. hospitus, Wilmotia murrayi M1 and Wilmottia murrayi M2 are new records for Signy Island.
format	Thesis
qualification_level	Master's degree
author	Radzi, Ranina Alya Mohamad
author_facet	Radzi, Ranina Alya Mohamad
author_sort	Radzi, Ranina Alya Mohamad
title	Phenotypic Diversification Of Terrestrial Cyanobacteria From Selected Habitats On Signy Island, South Orkney Islands, Antarctica
title_short	Phenotypic Diversification Of Terrestrial Cyanobacteria From Selected Habitats On Signy Island, South Orkney Islands, Antarctica
title_full	Phenotypic Diversification Of Terrestrial Cyanobacteria From Selected Habitats On Signy Island, South Orkney Islands, Antarctica
title_fullStr	Phenotypic Diversification Of Terrestrial Cyanobacteria From Selected Habitats On Signy Island, South Orkney Islands, Antarctica
title_full_unstemmed	Phenotypic Diversification Of Terrestrial Cyanobacteria From Selected Habitats On Signy Island, South Orkney Islands, Antarctica
title_sort	phenotypic diversification of terrestrial cyanobacteria from selected habitats on signy island, south orkney islands, antarctica
granting_institution	Perpustakaan Hamzah Sendut
granting_department	Pusat Pengajian Sains Kajihayat
publishDate	2020
url	http://eprints.usm.my/54176/1/RANINA%20ALYA%20BINTI%20MOHAMAD%20RADZI%20-%20TESIS.pdf
_version_	1747822276749819904

Phenotypic Diversification Of Terrestrial Cyanobacteria From Selected Habitats On Signy Island, South Orkney Islands, Antarctica

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