Converse of subject

• dominate: The phytoplankton increase produced by the iron fertilization was dominated by diatoms.

Converse of object

• use: A multi basin study will be carried out using diatom, pigment and pollen analysis.

• find: On examination I found some nice clean diatoms, many of them unbroken.

• clean: The Center's digital image archive comprises some two hundred images of cleaned diatoms, generated by the site's authors.

• contain: Some years ago I examined a smear of metal polish under the microscope and found it contained many diatoms.

• know: Read Frithjof's fascinating Micscape article ' A second look at some well known test diatoms ' where this is discussed.

• show: One of the slides showed diatoms from Port Townsend, situated a bit north of Seattle, USA, on the Pacific coast.

Adjective modifier

• pennate: The earlier southern experiments showed a preference for pennate diatoms over flagellates.

• marine: Identification of effective levels of a specific active substance against a series of marine diatoms.

• large: The largest diatom on the picture measures about 200 microns in diameter.

• centric: In the South, diatoms are favored over flagellates, and in the north, centric diatoms over pennate.

• beautiful: We have 5 days of allocated science onboard in which to collect cores of deep sea sediments - made up of beautiful fossil diatoms!

Modifies a noun

• frustule: The dots which are fine markings on the diatom frustule are now clearly seen.

• assemblage: Prior to the onset of the 19 th Century, diatom assemblages suggest a little or no change in water acidity.

• slide: The Spencer will now be my standard for looking at prepared diatom slides.

• species: This provides strong evidence that climatic factors have influenced diatom species composition at this site over the last decade.

• specie: A novel model based on principal curves representing the life cycle related shape variation of a number of diatom species has been developed.

• analysis: Research projects typically involve interdisciplinary teams where we provide expertise in diatom analysis or the use of isotope ratios in diatoms.

Noun used with modifier

• freshwater: Hypothesis: The rate and scale of dispersal of freshwater diatom species is a function of their global abundance.

• test: Test diatoms - what you can expect to see even with modest objectives by Martin Mach.