Chlorophyll d in an Epiphytic Cyanobacterium of Red Algae

Murakami, Akio; Miyashita, Hideaki; Iseki, Mineo; Adachi, Kyoko; Mimuro, Mamoru

doi:10.1126/science.1095459

Cited by 155 publications

(114 citation statements)

References 5 publications

Supporting

Mentioning

113

Contrasting

Unclassified

Order By: Relevance

“…Chl d-producing organisms have been reported from only two marine habitats. A. marina MBIC-11017 was isolated from a colonial ascidian from low-nutrient tropical western Pacific coastal waters (1), whereas strain Awaji was obtained from epiphytic growth on a red alga (2). Here, we report the isolation of a strain of Chl d-producing cyanobacteria from the Salton Sea, a moderately hypersaline (41-45 g⅐liter Ϫ1 ) lake in California.…”

mentioning

confidence: 99%

“…cyanobacteria ͉ lateral gene transfer C hlorophyll (Chl) d-producing cyanobacteria are a recently discovered group of oxygenic photoautotrophs that are unique in their use of this far-red light-absorbing structural relative of Chl a as the major photosynthetic pigment (1,2). The photosynthetic apparatus of these bacteria is structurally and functionally distinct (3,4), and its study has had a major impact on current perspectives regarding both the mechanisms and evolutionary origins of oxygenic photosynthesis (e.g., refs.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Discovery of a free-living chlorophyll d -producing cyanobacterium with a hybrid proteobacterial/cyanobacterial small-subunit rRNA gene

Miller

Augustine²,

Olson³

et al. 2005

Proc. Natl. Acad. Sci. U.S.A.

162

129

View full text Add to dashboard Cite

Chlorophyll d-producing cyanobacteria are a recently described group of phototrophic bacteria that is a major focus of photosynthesis research, previously known only from marine environments in symbiosis with eukaryotes. We have discovered a free-living member of this group from a eutrophic hypersaline lake. Phylogenetic analyses indicated these strains are closely related to each other but not to prochlorophyte cyanobacteria that also use an alternative form of chlorophyll as the major light-harvesting pigment. We have also demonstrated that these bacteria acquired a fragment of the small-subunit rRNA gene encoding a conserved hairpin in the bacterial ribosome from a proteobacterial donor at least 10 million years before the present. Thus, our most widely used phylogenetic marker can be a mosaic of sequence fragments with widely divergent evolutionary histories.cyanobacteria ͉ lateral gene transfer

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

Discovery of a free-living chlorophyll d -producing cyanobacterium with a hybrid proteobacterial/cyanobacterial small-subunit rRNA gene

Miller

Augustine²,

Olson³

et al. 2005

Proc. Natl. Acad. Sci. U.S.A.

162

129

View full text Add to dashboard Cite

show abstract

“…Acaryochloris ecotypes have been found in marine environments in close association with other oxygenic phototrophs such as Prochloron (associate with colonial ascidians) (3,5,10), eukaryotic macroalgae (11,12), and in a microbial mat in the Salton Sea, a saline and highly eutrophic California lake (13). In each environment, the photosynthetically available radiation is likely completely used by organisms that absorb light using Chl a and/or Chl b.…”

mentioning

confidence: 99%

Niche adaptation and genome expansion in the chlorophyll d -producing cyanobacterium Acaryochloris marina

Swingley

Chen

Cheung³

et al. 2008

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

199

184

View full text Add to dashboard Cite

Acaryochloris marina is a unique cyanobacterium that is able to produce chlorophyll d as its primary photosynthetic pigment and thus efficiently use far-red light for photosynthesis. Acaryochloris species have been isolated from marine environments in association with other oxygenic phototrophs, which may have driven the niche-filling introduction of chlorophyll d. To investigate these unique adaptations, we have sequenced the complete genome of A. marina. The DNA content of A. marina is composed of 8.3 million base pairs, which is among the largest bacterial genomes sequenced thus far. This large array of genomic data is distributed into nine single-copy plasmids that code for >25% of the putative ORFs. Heavy duplication of genes related to DNA repair and recombination (primarily recA) and transposable elements could account for genetic mobility and genome expansion. We discuss points of interest for the biosynthesis of the unusual pigments chlorophyll d and ␣-carotene and genes responsible for previously studied phycobilin aggregates. Our analysis also reveals that A. marina carries a unique complement of genes for these phycobiliproteins in relation to those coding for antenna proteins related to those in Prochlorococcus species. The global replacement of major photosynthetic pigments appears to have incurred only minimal specializations in reaction center proteins to accommodate these alternate pigments. These features clearly show that the genus Acaryochloris is a fitting candidate for understanding genome expansion, gene acquisition, ecological adaptation, and photosystem modification in the cyanobacteria.comparative microbial genomics ͉ photosynthesis ͉ oxygenic phototrophs ͉ evolution

show abstract

“…Up to date, several strains of A. marina have been isolated and cultured, A. marina MBIC11017 (Miyashita et al 1996), Acaryochloris sp. AWAJI-1 (Murakami et al 2004), Acaryochloris sp. CCMEE 5410 (Miller et al 2005), Acaryochloris sp.…”

Section: Cyanobacterial Strains Possess Unique Chlorophyllsmentioning

confidence: 99%

“…Chl d can replace nearly all of the functions of Chl a in A. marina, not only in light-harvesting complexes (Chen et al 2002;Tomo et al 2011), but also in reaction centres (Hu et al 1998;Chen et al 2005;Tomo et al 2007). So far, several strains of Chl d-containing organisms have been isolated and cultured, and all of those belong to one genus of cyanobacteria, A. marina (Miyashita et al 1996;Murakami et al 2004;Miller et al 2005;Mohr et al 2010;Larkum et al 2012). There is very little information regarding Chl e due to only two cases being mentioned as, unpublished data around the 1940s .…”

mentioning

confidence: 99%

Novel chlorophylls and new directions in photosynthesis research

Chen

2015

Functional Plant Biol.

View full text Add to dashboard Cite

Abstract. Chlorophyll d and chlorophyll f are red-shifted chlorophylls, because their Q y absorption bands are significantly red-shifted compared with chlorophyll a. The red-shifted chlorophylls broaden the light absorption region further into far red light. The presence of red-shifted chlorophylls in photosynthetic systems has opened up new possibilities of research on photosystem energetics and challenged the unique status of chlorophyll a in oxygenic photosynthesis. In this review, we report on the chemistry and function of red-shifted chlorophylls in photosynthesis and summarise the unique adaptations that have allowed the proliferation of chlorophyll d-and chlorophyll f-containing organisms in diverse ecological niches around the world.

show abstract

Chlorophyll d in an Epiphytic Cyanobacterium of Red Algae

Cited by 155 publications

References 5 publications

Discovery of a free-living chlorophyll d -producing cyanobacterium with a hybrid proteobacterial/cyanobacterial small-subunit rRNA gene

Discovery of a free-living chlorophyll d -producing cyanobacterium with a hybrid proteobacterial/cyanobacterial small-subunit rRNA gene

Niche adaptation and genome expansion in the chlorophyll d -producing cyanobacterium Acaryochloris marina

Novel chlorophylls and new directions in photosynthesis research

Contact Info

Product

Resources

About