The relationship of a prochlorophyte Prochlorothrix hollandica to green chloroplasts
- PMID: 2911389
- DOI: 10.1038/337380a0
The relationship of a prochlorophyte Prochlorothrix hollandica to green chloroplasts
Abstract
It is generally accepted that chloroplasts arose from one or more endosymbiotic events between an ancestral cyanobacterium and a eukaryote. Such an origin fits well in the case of the chloroplasts of rhodophytes that, like cyanobacteria, contain chlorophyll a and phycobilin pigments. The green chloroplasts from higher plants, green algae, and euglenoids however, contain chlorophyll b as well as chlorophyll a, and lack phycobilins. Consequently, it has been suggested that they arose independently of the rhodophyte chloroplasts, from an ancestral prokaryote containing that complement of pigments. The 'prochlorophytes' Prochloron didemni (an exosymbiont on didemnid ascidians) and Prochlorothrix hollandica (a recently discovered, free-living, filamentous form) have been suggested to be modern counterparts of the ancestor of the green chloroplasts because they are prokaryotes that also contain both chlorophylls a and b, and lack phycobilins. We report here a 16S rRNA-based phylogenetic analysis of P. hollandica. The organism is found to fall within the cyanobacterial line of descent, as do the green chloroplasts, but it is not a specific relative of green chloroplasts. Thus, similar pigment compositions do not necessarily reflect close evolutionary relationships.
Similar articles
-
psbA genes indicate common ancestry of prochlorophytes and chloroplasts.Nature. 1989 Jan 26;337(6205):382-5. doi: 10.1038/337382a0. Nature. 1989. PMID: 2643058
-
Multiple evolutionary origins of prochlorophytes, the chlorophyll b-containing prokaryotes.Nature. 1992 Jan 16;355(6357):265-7. doi: 10.1038/355265a0. Nature. 1992. PMID: 1731224
-
Chlorophyll b and phycobilins in the common ancestor of cyanobacteria and chloroplasts.Nature. 1999 Jul 8;400(6740):159-62. doi: 10.1038/22101. Nature. 1999. PMID: 10408441
-
The prochlorophytes: are they more than just chlorophyll a/b-containing cyanobacteria?Crit Rev Microbiol. 1993;19(1):43-59. doi: 10.3109/10408419309113522. Crit Rev Microbiol. 1993. PMID: 8481212 Review.
-
Prochloron--a status report.Phycologia. 1984;23(2):203-8. doi: 10.2216/i0031-8884-23-2-203.1. Phycologia. 1984. PMID: 11541966 Review.
Cited by
-
Draft genome of Prochlorothrix hollandica CCAP 1490/1T (CALU1027), the chlorophyll a/b-containing filamentous cyanobacterium.Stand Genomic Sci. 2016 Oct 18;11:82. doi: 10.1186/s40793-016-0204-4. eCollection 2016. Stand Genomic Sci. 2016. PMID: 27777652 Free PMC article.
-
Ribulose bisphosphate carboxylase in algae: synthesis, enzymology and evolution.Photosynth Res. 1990 Nov;26(2):69-85. doi: 10.1007/BF00047078. Photosynth Res. 1990. PMID: 24420459
-
IsProchlorothrix hollandica the best choice as a prokaryotic model for higher plant Chla/b photosynthesis?Photosynth Res. 1993 Jul;37(1):61-8. doi: 10.1007/BF02185439. Photosynth Res. 1993. PMID: 24317654
-
Marine genomics: at the interface of marine microbial ecology and biodiscovery.Microb Biotechnol. 2010 Sep;3(5):531-43. doi: 10.1111/j.1751-7915.2010.00193.x. Microb Biotechnol. 2010. PMID: 20953417 Free PMC article. Review.
-
Population dynamics and diversity of viruses, bacteria and phytoplankton in a shallow eutrophic lake.Microb Ecol. 2008 Jul;56(1):29-42. doi: 10.1007/s00248-007-9321-3. Epub 2007 Oct 10. Microb Ecol. 2008. PMID: 17924158 Free PMC article.
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
