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RECORD NUMBER: 21 OF 148

OLS Field Name OLS Field Data
Main Title Chronic Effects of Ultraviolet-B Radiation on Growth and Cell Volume of 'Phaeodactylum tricornutum' (Bacillariophyceae).
Author Behrenfeld, M. J. ; Hardy, J. T. ; Lee, H. ;
CORP Author Environmental Research Lab.-Narragansett, Newport, OR. ;AScI Corp., Newport, OR. ;Huxley Coll. of Environmental Studies, Bellingham, WA.
Publisher c1992
Year Published 1992
Report Number EPA/600/J-93/195 ;ERLN-NX12;
Stock Number PB93-199545
Additional Subjects Ultraviolet rays ; Growth ; Diatoms ; Photosynthesis ; Reprints ; Phaeodactylum tricornutum ; Cell volume
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB93-199545 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 08/23/1993
Collation 6p
Abstract
Cultures of the temperate estuarine diatom, Phaeodactylum tricornutum Bohlin (NEPCC Clone 31), were grown under ambient intensities of ultraviolet-A radiation (UVAR), photosynthetically active radiation (PAR), and various intensities of ultraviolet-B radiation (UVBR; 290-320 nm). Growth rates and cell volumes were monitored for 36 d. UVBR decreased growth rates and increased cell volumes. Sensitivity of growth to UVBR increased with time. Growth rates of P. tricornutum decreased with increasing ratios of UVBR:UVAR + PAR.