Photooxidative damage to the cyanobacterium Spirulina platensis mediated by singlet oxygen

1995 ◽  
Vol 31 (1) ◽  
pp. 44-48 ◽  
Author(s):  
D. P. Singh ◽  
Neeraj Singh ◽  
Kavita Verma
Keyword(s):  
Singlet Oxygen ◽  
Spirulina Platensis ◽  
Photooxidative Damage

Synergistic Activity of the Herbicide Safener Dichlormid with Herbicides Affecting Photosynthesis

1990 ◽  
Vol 45 (5) ◽  
pp. 565-568 ◽  
Author(s):  
Carl Fedtke ◽  
Robert H. Strang
Keyword(s):  
Ascorbic Acid ◽  
Photosystem Ii ◽  
Singlet Oxygen ◽  
Treatment Result ◽  
Synergistic Activity ◽  
Ipomoea Hederacea ◽  
Combination Treatments ◽  
Herbicide Safener ◽  
Oxygen Scavenging ◽  
Photooxidative Damage

Abstract Dichlormid, a safener for thiolcarbamate herbicides, was tank-mixed with several herbicidal inhibitors of photosystem II, or with the herbicide acifluorfen, and applied postemergence to Ipomoea hederacea plants. Dichlormid had no visible effects on the plants when applied alone, but interacted synergistically with the herbicides in the combination treatments. Dichlormid strongly decreased the ascorbic acid levels in the Ipomoea hederacea cotyledons. Ascorbate is known to protect plant tissue from photooxidative damage. The herbicides which interacted synergistically with dichlormid are believed to generate their phytotoxic action via the production of excess singlet oxygen. It is suggested that the decreased ascorbate levels in the Ipomoea hederacea cotyledons after dichlormid treatment result in an impaired singlet oxygen scavenging system and consequently lead to increased plant damage in the presence of singlet oxygen generating herbicides.

scholarly journals Singlet Oxygen Is the Major Reactive Oxygen Species Involved in Photooxidative Damage to Plants

2008 ◽  
Vol 148 (2) ◽  
pp. 960-968 ◽  
Author(s):  
Christian Triantaphylidès ◽  
Markus Krischke ◽  
Frank Alfons Hoeberichts ◽  
Brigitte Ksas ◽  
Gabriele Gresser ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Singlet Oxygen ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Photooxidative Damage

Light and oxygen stress in Spirulina platensis (cyanobacteria) grown outdoors in tubular reactors

1996 ◽  
Vol 97 (1) ◽  
pp. 175-179 ◽  
Author(s):  
Avigad Vonshak ◽  
Giuseppe Torzillo ◽  
Paola Accolla ◽  
Luisa Tomaselli
Keyword(s):  
Spirulina Platensis ◽  
Oxygen Stress ◽  
Tubular Reactors

Novel Approaches of Using of Spirulina Platensis in Natural Rubber Based Composites

2018 ◽  
Vol 6 (7) ◽  
pp. 680-687
Author(s):  
Ewa Głowińska ◽  
Janusz Datta ◽  
Paulina Parcheta and Natalia Kaźmierczak
Keyword(s):  
Natural Rubber ◽  
Spirulina Platensis ◽  
Novel Approaches

Estimation of chlorophyll content by absorption spectra of native Spirulina platensis cells

2020 ◽  
pp. 25-33
Author(s):  
Leonid E. Paramonov
Keyword(s):  
Chlorophyll Content ◽  
Chlorophyll A ◽  
Absorption Spectra ◽  
Spirulina Platensis ◽  
Intracellular Concentration ◽  
Absorption Coefficients

A method for retrieving the absorption coefficients of Spirulina platensis pigments using absorption spectra of native cells and excluding the use of extracts is considered. Estimates of the intracellular concentration of chlorophyll a, С-phycoerythrin, С- phycocyanin and allophycocyanin in native cells are discussed.

Fluoroquinolone Antimicrobials: Singlet Oxygen, Superoxide and Phototoxicity

1998 ◽  
Vol 67 (4) ◽  
pp. 399 ◽  
Author(s):  
Lydia J. Martínez ◽  
Robert H. Sik ◽  
Colin F. Chignell
Keyword(s):  
Singlet Oxygen
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