New Zealand Journal of Marine and Freshwater Research abstracts
Pseudo-nitzschia multistriata (Bacillariophyceae) in New Zealand
LESLEY L. RHODES
JANET ADAMSON
Cawthron Institute
Private Bag 2, Nelson
New Zealand
email: lesley@cawthron.org.nz
CHRIS SCHOLIN
Monterey Bay Aquarium Research Institute
P. O. Box 628, Moss Landing
CA 95039-0628
United States
Abstract Pseudo-nitzschia multistriata (Takano) Takano
has been observed in seawater samples from the North Island and from the
northern waters of the South Island, New Zealand, with blooms of >1.0 x
10
6 cells litre
-1 being recorded in December 1997
(austral summer), and minor blooms occurring in both summer and winter 1998 and
1999. The species is notable for its sigmoid form, and for its cross-reactivity
with oligonucleotide probes targeted at
P. australis Frenguelli
ribosomal RNA. The species is non-toxic, and for biotoxin monitoring purposes
needs to be discriminated from the highly toxic
P. australis. It falls
in the "delicatissima" complex of
Pseudo-nitzschia H. Peragallo species,
and electron microscopy shows a close resemblance to
P. delicatissima
(Cleve) Heidin
, except for the lack of a central larger interspace.
Keywords Pseudo-nitzschia; oligonucleotide probes;
phytoplankton monitoring; electron microscopy
M99069
Received 15 November 1999; accepted 22 February 2000
PDF file of entire paper: medium quality (761K); (scanned from paper original: notes about this process)
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