Editing Diatom (section)

==Overview==
Diatoms are protists that form massive annual spring and fall blooms in aquatic environments and are estimated to be responsible for about half of photosynthesis in the global oceans.<ref>{{cite journal | last1=Nelson | first1=David M. | last2=Tréguer | first2=Paul | last3=Brzezinski | first3=Mark A. | last4=Leynaert | first4=Aude | last5=Quéguiner | first5=Bernard | title=Production and dissolution of biogenic silica in the ocean: Revised global estimates, comparison with regional data and relationship to biogenic sedimentation | journal=Global Biogeochemical Cycles | publisher=American Geophysical Union (AGU) | volume=9 | issue=3 | year=1995 | issn=0886-6236 | doi=10.1029/95gb01070 | pages=359–372| bibcode=1995GBioC...9..359N }}</ref> This predictable annual bloom dynamic fuels higher trophic levels and initiates delivery of carbon into the deep ocean biome. Diatoms have complex life history strategies that are presumed to have contributed to their rapid genetic diversification into ~200,000 species{{hsp}}<ref>{{cite journal | last=Mann | first=David G. | title=The species concept in diatoms | journal=Phycologia | publisher=Informa UK Limited | volume=38 | issue=6 | year=1999 | issn=0031-8884 | doi=10.2216/i0031-8884-38-6-437.1 | pages=437–495| bibcode=1999Phyco..38..437M }}</ref> that are distributed between the two major diatom groups: centrics and pennates.<ref>Simonsen, R., (1979). "The diatom system: ideas on phylogeny", ''Bacillaria'', '''2''': 9–71.</ref><ref name=Moore2017>{{cite journal | last1=Moore | first1=Eric R. | last2=Bullington | first2=Briana S. | last3=Weisberg | first3=Alexandra J. | last4=Jiang | first4=Yuan | last5=Chang | first5=Jeff | last6=Halsey | first6=Kimberly H. | title=Morphological and transcriptomic evidence for ammonium induction of sexual reproduction in Thalassiosira pseudonana and other centric diatoms | journal=PLOS ONE | publisher=Public Library of Science (PLoS) | volume=12 | issue=7 | date=2017-07-07 | issn=1932-6203 | doi=10.1371/journal.pone.0181098 | page=e0181098| pmid=28686696 | pmc=5501676 | bibcode=2017PLoSO..1281098M | doi-access=free }} [[File:CC-BY icon.svg|50px]] Modified material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License].</ref>