Note
Thesis (M.S.)--Florida Atlantic University, 2000.
Member of
Contributors
Publisher
Florida Atlantic University
Date Issued
2000
Description
Fresh and aged unispecific samples have been analyzed using IP-RPHPLC and PDA in order to reveal the chlorophylls and carotenoids alterations during senescence and death. Aging studies showed that cyanobacterial chlorophyll- a was destroyed faster than carotenoids in room oxic conditions. The reverse was found for the other eukaryotic species. Species with high chlorophyllase activity produced phytol free chlorophyll derivatives during death. The rate of chlorophyll-a destruction was; room oxic > room anoxic > cold anoxic. Pyropheophorbide-a was often the final product of type-I chlorophyll-a degradation. The conversion from fucoxanthin to fucoxanthinol was observed. Chlorophyll-c was found to be destroyed faster than chlorophyll-a. The quantitative relationship of certain "biomarker" pigments (e.g. fucoxanthin, zeaxanthin) to chlorophyll-a was found not to change significantly during the first 1--2 months senescence-death scenarios. This aids the field of chemotaxonomy in that valid estimations may still be made when phytoplankton populations contain senescent individuals.
Language
Type
Form
Extent
140 p.
Subject (Topical)
Identifier
9780599813809
ISBN
9780599813809
Additional Information
Thesis (M.S.)--Florida Atlantic University, 2000.
Date Backup
2000
Date Text
2000
Date Issued (EDTF)
2000
Extension
FAU
FAU
admin_unit="FAU01", ingest_id="ing1508", creator="staff:fcllz", creation_date="2007-07-18 21:44:09", modified_by="staff:fcllz", modification_date="2011-01-06 13:08:43"
IID
FADT12689
Issuance
monographic
Organizations
Attributed name: Florida Atlantic University
Person Preferred Name
Liu, Lei
Graduate College
Physical Description
140 p.
application/pdf
Title Plain
Senescence- and death-related alterations of chlorophylls and carotenoids in marine phytoplankton
Use and Reproduction
Copyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
http://rightsstatements.org/vocab/InC/1.0/
Origin Information
2000
monographic
Boca Raton, Fla.
Florida Atlantic University
Physical Location
Florida Atlantic University Libraries
Place
Boca Raton, Fla.
Sub Location
Digital Library
Title
Senescence- and death-related alterations of chlorophylls and carotenoids in marine phytoplankton
Other Title Info
Senescence- and death-related alterations of chlorophylls and carotenoids in marine phytoplankton