Harvard Lyman
Brandeis University
9 Papers
400 Citations
Harvard Lyman is an academic researcher from Brandeis University. The author has contributed to research in topics: Euglena & Euglena gracilis. The author has an hindex of 9, co-authored 9 publications.
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Papers
Studies of chloroplast development in Euglena. I. Inactivation of green colony formation by u.v. light.
TL;DR: The evidence leads to the hypothesis that there are self-reproducing cytoplasmic entities in Euglena which contain nucleoprotein and which are responsible for chloroplast formation.
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[12] Isolation of mutants from Euglena gracilis
TL;DR: This chapter discusses the isolation of mutants from Euglena gracilis, and it seems likely that the mutants expressed as plastid phenotypes in EuglENA are mutations or deletions of thePlastid DNA, consistent with the observation that the plASTid of Euglene is more sensitive than the viability of the cell to alteration by most environmental agents.
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Studies of chloroplast development in Euglena. II. Photoreversal of the u.v. inhibition of green colony formation.
TL;DR: The evidence presented is consistent with the hypothesis that cytoplasmic entities which are replicated at cell division and which control chloroplast formation are prevented from being replicated by u.v. light and are diluted out among the progeny.
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Studids of chloroplast development in Euglena. III. Experimental separation of chloroplast development and chloroplast replication.
TL;DR: It is concluded, therefore, that ultraviolet light does not affect the development of precursor bodies into chloroplasts in the ultraviolet irradiated cells but acts specifically to prevent the replication of chloroplast or the structures which manufacture them, at cell division.
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Ultraviolet Inactivation and Photoreactivation of Chloroplast Development in Euglena Without Cell Death
TL;DR: In this paper, it was shown that exposure to non-lethal doses of ultraviolet completely inactivates chloroplast development and chlorophyll synthesis in Euglena gracilis var. bacillaris and in the Z strain.
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