New unicellular red alga, Bulboplastis apyrenoidosa gen. et sp. nov. (Rhodellophyceae, Rhodophyta) from the mangroves of Japan: Phylogenetic and ultrastructural observations

Published on Apr 1, 2012in Phycological Research 1.27
· DOI :10.1111/j.1440-1835.2012.00643.x
Asuka Kushibiki1
Estimated H-index: 1
(Yamagata University),
Akiko Yokoyama10
Estimated H-index: 10
(University of Tsukuba)
+ 3 AuthorsYoshiaki Hara19
Estimated H-index: 19
(Yamagata University)
Abstract
SUMMARY A novel unicellular red alga collected from a mangrove area on Iriomote Island in southwest Japan is described as Bulboplastis apyrenoidosa gen. et sp. nov. The cells are spherical, mean 11.2 µm in diameter, and surrounded by a thick mucilaginous sheath. The grayish-green chloroplast has many lobes extending throughout the cell and lacks a pyrenoid. This chloroplast type is similar to Glaucosphaera vacuolata, but differs from other unicellular red algae. Plastoglobuli clusters occur beneath the chloroplast envelope but only at the cell periphery. A peripheral encircling thylakoid is absent. Golgi bodies surround the central nucleus, which is an arrangement shared with all members of the Dixoniellales. The subcellular features of some mitotic phases are quite similar to those of other unicellular red algae. A pair of ring-shaped structures located within electron-dense material can be seen in cells undergoing telophase. The size of the polar rings ranged within those reported from the Dixoniellales. A phylogenetic analysis based on small subunit rDNA indicates that B. apyrenoidosa is a member of the Dixoniellales and a sister lineage to Neorhodellaand Dixoniella.
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  • Citations (6)
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References28
Published on Jan 1, 2000in Algae 1.56
Yoshiaki Hara19
Estimated H-index: 19
,
Akiko Yokoyama10
Estimated H-index: 10
,
김지희1
Estimated H-index: 1
The systematic relationship of the unicellular red algae based on their morphological, physiological and habitual characteristics was discussed by referring to the results of their molecular phylogenetic analyses, using 18S rRNA and psbA genes. Five groups (named as one ancestral stock; Porphyridium Group (-G) and other four groups; Rhodospora-Rhodella-, Rhodosorus-and Cyanidium-G) previously reported were partially supported by the molecular phylogeny which showed four phylogenetic groups. Howe...
11 Citations
Published on Feb 1, 1955in Plant Systematics and Evolution 1.45
Lothar Geitler23
Estimated H-index: 23
4 Citations Source Cite
Published on Jan 1, 1996in BioScience 5.88
David G. Mann43
Estimated H-index: 43
,
H.M Jahns1
Estimated H-index: 1
1,017 Citations
Published on Dec 1, 1991in Journal of Phycology 3.00
Laura M. Patrone6
Estimated H-index: 6
(Binghamton University),
Sharon T. Broadwater9
Estimated H-index: 9
(College of William & Mary),
Joseph L. Scott11
Estimated H-index: 11
(College of William & Mary)
Rhodella violacea (Kornmann) Wehrmeyer and Rhodella maculata Evans were investigated for ultrastructural details of vegetative and dividing cells. Rhodella violacea has a nuclear projection into the pyrenoid similar to that found in R. maculata, although the nuclear projection in R. maculata traverses a starch-lined area before contacting the pyrenoid. Unlike most, red algae, the two Rhodella species lack a peripheral encircling thylakoid in the chloroplast and have dictyosomes associated solely...
18 Citations Source Cite
Published on Oct 1, 1999in Journal of Phycology 3.00
Ulf Karsten50
Estimated H-index: 50
(Alfred Wegener Institute for Polar and Marine Research),
John A. West29
Estimated H-index: 29
(University of Melbourne)
+ 3 AuthorsRobert King32
Estimated H-index: 32
(University of New South Wales)
The qualitative and quantitative occurrence of low molecular weight carbohydrates (LMWCs) in the Bangiophyceae is surveyed. Members of the orders Erythropeltidales (Sahlingia and Erythrotrichia), Compsopogonales (Compsopogon), and Bangiales (Bangia and Porphyra) all contain floridoside and, in some cases, D- and L-isofloridoside, making the group chemotaxonomically the most homogeneous; L-isofloridoside occurred only in the Bangiales. The Porphyridiales showed great variation in carbohydrate typ...
66 Citations Source Cite
Published on Jun 15, 2011in Algae 1.56
Eun-Chan Yang3
Estimated H-index: 3
,
Joe Scot1
Estimated H-index: 1
+ 5 AuthorsEvguenia Orlova5
Estimated H-index: 5
The unicellular marine red alga Erythrolobus australicus sp. nov. (Porphyridiophyceae) was isolated into laboratory culture from mangroves in Queensland and New South Wales, Australia. The single multi-lobed red to rose-red plastid has more than one pyrenoid and lacks a peripheral thylakoid. Arrays of small electron dense globules occur along the thylakoids. The nucleus is peripheral with a central to eccentric nucleolus. Each Golgi body is associated with a mitochondrion. The spherical cells ar...
5 Citations Source Cite
Published on Jan 1, 1982in Botany 1.18
Kathleen L. Schornstein4
Estimated H-index: 4
,
Joe Scott11
Estimated H-index: 11
Mitosis in the unicellular red alga Porphyridium purpureum was studied with the electron microscope. During early prophase two bipartite nucleus associated organelles (NAOs) are seen in a region that will become one of the division poles. The division axis is established by the migration of one NAO. Microbodies are associated with the poles throughout the mitotic cycle. At prometaphase the nuclear envelope (NE) subjacent to each NAO forms a nuclear pocket which breaks down or opens to form a lar...
35 Citations Source Cite
Published on Nov 1, 2007in Molecular Ecology Notes
Akifumi S. Tanabe14
Estimated H-index: 14
(Tohoku University)
The application of different substitution models to each gene (a.k.a. mixed model) should be considered in model-based phylogenetic analysis of multigene sequences. However, a single molecular evolution model is still usually applied. There are no computer programs able to conduct model selection for multiple loci at the same time, though several recently developed types of software for phylogenetic inference can handle mixed model. Here, I have developed computer software named ‘kakusan’ that e...
192 Citations Source Cite
Published on Jun 1, 2003in Journal of Phycology 3.00
Ulf Karsten50
Estimated H-index: 50
(University of Rostock),
John A. West29
Estimated H-index: 29
(University of Melbourne)
+ 4 AuthorsJuliet Brodie21
Estimated H-index: 21
(Bath Spa University)
In the order Porphyridiales there are three clades based on molecular evidence. These show parallels with the low molecular weight carbohydrate (LMWCs) in different genera. Clade Porphyridiales 1 includes Dixoniella, Glaucosphaera, Rhodella, and one undescribed genus (3987) that all contain mannitol. Clade Porphyridiales 2 comprises taxa of the Stylonematales Rhodosorus and Stylonema species and contains digeneaside and sorbitol, whereas Chroodactylon has only sorbitol. In clade Porphyridiales 3...
53 Citations Source Cite
Published on Sep 1, 1980in New Phytologist 7.43
Derek A. McCracken4
Estimated H-index: 4
(Illinois State University),
Mathew J. Nadakavukaren19
Estimated H-index: 19
(Illinois State University),
J. R. Cain2
Estimated H-index: 2
(Illinois State University)
Summary The ultrastructure and carbohydrate chemistry of Glaucosphaera vacuolata Korsh. were studied to clarify the uncertain taxonomic position of this alga. Serial thin sections reveal that the double membrane bounded photosynthetic apparatus of Glaucosphaera, described by previous investigators to consist of many chromatophores or cyanelles, is a single, highly lobed chloroplast without a pyrenoid. Thylakoids are single and bear phycobilisomes. The single nucleus is centrally located and surr...
37 Citations Source Cite
  • References (28)
  • Citations (6)
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Cited By6
Published on Jan 1, 2014in Phycologia 1.80
Kazuya Takahashi13
Estimated H-index: 13
,
Chihiro Sarai1
Estimated H-index: 1
,
Mitsunori Iwataki17
Estimated H-index: 17
The morphology of two marine woloszynskioid dinoflagellates from the Japanese coast was examined by light, scanning and transmission electron microscopy, and phylogenetic positions were inferred on the basis of partial nuclear-encoded large-subunit ribosomal (r)DNA (D1–D3) sequences. Both species had a single elongate apical vesicle (EAV) on the anterior end, a diagnostic feature of the Suessiaceae, and were identified as Biecheleriopsis adriatica and an undescribed species of Biecheleria. Cells...
12 Citations Source Cite
Published on Jan 1, 2013in Botanica Marina 0.99
Craig W. Schneider13
Estimated H-index: 13
(Trinity College, Dublin),
Michael J. Wynne18
Estimated H-index: 18
(Trinity College, Dublin)
A second addendum to Schneider and Wynne ' s (Schneider, C.W. and M.J. Wynne. 2007. A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Bot. Mar. 50: 197-249.) " Synoptic review " of red algal genera and their classification is presented, with an updating of names of new taxa at the generic level and higher. In the past few years, the hierarchy of some genera has changed due to new subfamilies, which are cited and reference...
4 Citations Source Cite
Published on Dec 15, 2015in Algae 1.56
Wladimir Costa Paradas5
Estimated H-index: 5
,
Leonardo R. Andrade24
Estimated H-index: 24
+ 3 AuthorsGilberto M. Amado-Filho17
Estimated H-index: 17
The present study described with different microscopy approaches chloroplasts lobes in Laurencia sensu latu (Rhodophyta) species and found inter-specific differences among them. Chloroplasts were investigated using confocal laser scanning microscopy (LSM), transmission electron microscopy (TEM) and high resolution scanning electron microscopy (HRSEM). Using and TEM and HRSEM images we distinguished chloroplasts with lobes than chloroplasts without lobes in Yuzurua poiteaui var. gemmifera (Harvey...
1 Citations Source Cite
Published on Jun 1, 2017in Current Biology 9.25
Sergio A. Muñoz-Gómez6
Estimated H-index: 6
(Dalhousie University),
Fabian G. Mejía-Franco1
Estimated H-index: 1
+ 4 AuthorsClaudio H. Slamovits26
Estimated H-index: 26
(Canadian Institute for Advanced Research)
Summary Red algal plastid genomes are often considered ancestral and evolutionarily stable, and thus more closely resembling the last common ancestral plastid genome of all photosynthetic eukaryotes [1, 2]. However, sampling of red algal diversity is still quite limited (e.g., [2–5]). We aimed to remedy this problem. To this end, we sequenced six new plastid genomes from four undersampled and phylogenetically disparate red algal classes (Porphyridiophyceae, Stylonematophyceae, Compsopogonophycea...
30 Citations Source Cite
Published on Dec 14, 2017in Frontiers in Plant Science 3.68
David Roy Smith26
Estimated H-index: 26
(University of Western Ontario)
There is a strong positive relationship between nuclear genome size and cell size across the eukaryotic domain, but the cause and effect of this relationship is unclear. A positive coupling of cell size and DNA content has also been recorded for various bacteria, suggesting that, with some exceptions, this association might be universal throughout the tree of life. However, the link between cell size and genome size has not yet been thoroughly explored with respect to chloroplasts, or organelles...
2 Citations Source Cite
Published on May 8, 2018in PLOS ONE 2.77
Chung Hyun Cho1
Estimated H-index: 1
(Sungkyunkwan University),
Ji Won Choi2
Estimated H-index: 2
(Sungkyunkwan University)
+ 2 AuthorsHwan Su Yoon14
Estimated H-index: 14
(Sungkyunkwan University)
The red algal subclass Nemaliophycidae includes both marine and freshwater taxa that contribute to more than half of the freshwater species in Rhodophyta. Given that these taxa inhabit diverse habitats, the Nemaliophycidae is a suitable model for studying environmental adaptation. For this purpose, we characterized plastid genomes of two freshwater species, Kumanoa americana (Batrachospermales) and Thorea hispida (Thoreales), and one marine species Palmaria palmata (Palmariales). Comparative gen...
1 Citations Source Cite
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