ON "REVERSAL" OF PHOTOTROPISM IN PHYCOMYCES

Alleged reversal of the phototropism of the sporangiophores of Phycomyces by high intensities of light does not occur if infra-red radiation is properly excluded. Phototropic "indifference" alone occurs at high intensities due to equal photic action on both sides of the sporangiophore. If...

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Detalles Bibliográficos
Autor principal: Castle, E. S.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1932
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2141180/
https://www.ncbi.nlm.nih.gov/pubmed/19872659
Descripción
Sumario:Alleged reversal of the phototropism of the sporangiophores of Phycomyces by high intensities of light does not occur if infra-red radiation is properly excluded. Phototropic "indifference" alone occurs at high intensities due to equal photic action on both sides of the sporangiophore. If heat radiation is not screened out, a gradual, negative thermotropic bending takes place.

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