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Filtering by: Subject Photosynthesis -- Research Resource Type Dissertation

Characteristics of two noncarotenogenic light sensitive mutants of Scenedesmus obliquus strain D₃

Creator:

Harvey, Geoffrey W.

Abstract:

Two light sensitive mutants of the green alga Scenedesmus obliquus strain D₃ have been characterized. The photodynamic nature of their sensitivity has been established, the subchloroplast site of photodamage has been investigated, and their noncarotenogenic character has been verified. The two mutants possess several similarities, although mutant L. S. -41...

Resource Type:

Dissertation

Full Text:

been invaluable during this research and the thesis preparation. I also wish to thank Dr. R. R
The effects of a mutation within vitamin E biosynthesis upon the development and function of the photosynthetic apparatus

Creator:

Sicher, Richard Charles

Abstract:

A new photosystem-II mutant of the green alga Scenedesmus obliquus D₃, strain PS-28, has been shown to lack a-tocopherol (vitamin E). The photosynthetic activity of dark grown samples of PS-28 is about 20% of the wild-type control. Culturing the mutant at low light intentisites (10⁴ ergs/sec-cm ²) stimulates photosynthetic activity...

Resource Type:

Dissertation

Full Text:

these investigations was provided by a Research Assistantship from the National Science Foundation (GB