Results 161 to 170 of about 1,423 (191)

Novel morphology in Enteromorpha (Ulvophyceae) forming green tides

American Journal of Botany, 2002
“Green tides” are vast accumulations of unattached green macroalgae associated with eutrophicated marine environments. They have major ecological and economic impacts globally, so an understanding of their origin and persistence is required in order to make management decisions.
Blomster, J., Back, S., Fewer, D.P., Kiirikki, M., Lehvo, A., Maggs, Christine, Stanhope, Michael J   +6 more
openaire   +2 more sources

Biodiversity of Trentepohliales (Ulvophyceae, Chlorophyta) in Gabon, Central Africa

Nova Hedwigia, 2013
The distribution and diversity of the algae of the order Trentepohliales were studied from field collections made in Gabon, central Africa. Both forest and urban environments were examined for the presence of trentepohlialean taxa. Based on these field collections fourteen taxa of Trentepohlia and Printzina were recorded: Printzina bosseae (De Wildeman)
Haj A. Allali, Fabio Rindi, Juan M. Lopez-Bautista   +2 more
openaire   +1 more source

Ultrastructure and Taxonomy of Sporocladopsis novae-zelandiae (Ulvophyceae, Chlorophyta)

Botanica Marina, 2002
The ultrastructure of vegetative and reproductive cells in Sporocladopsis novae-zelandiae has been studied for the first time to determine the precise taxonomic position of this genus. Vegetative cells contained one parietal chloroplast with 5-8 ulvophycean-type pyrenoids and transverse cell walls with plasmodesmata.
Leonardi, PI, Cáceres, EJ, Correa, JA
openaire   +2 more sources

Cosmid library of the marine macroalga Bryopsis maxima (Bryopsidales, Ulvophyceae)

Phycological Research, 2002
SUMMARY The purpose of this study was to construct a cosmid library from chromosomal DNA of a marine macroalga, Bryopsis maxima Okamura ex Segawa (Bryopsidales, Ulvophyceae), in a rapid, simple and inexpensive manner. In the DNA purification, polysaccharides were removed by covalently binding them to resin particles containing free boric acid groups.
Ritsuko Inokuchi, Kiyoto Motojima, Mitsumasa Okada   +2 more
openaire   +1 more source

Checklist of the green (Ulvophyceae) macroalgae from the Gulf of California, México

Phytotaxa, 2016
The Gulf of California is an area characterized by a high diversity and abundance of seaweeds. There are a large number of endemic, economically or ecologically relevant and little studied species. However, until now, detailed reports of species in the Gulf of California are lacking.
Mora-Valdés, Laura Areli, Riosmena-Rodríguez, Rafael   +1 more
openaire   +2 more sources

SEPTUM FORMATION IN THE GREEN ALGA ULOTHRIX PALUSALSA (CHLOROPHYTA, ULVOPHYCEAE)

Acta Botanica Neerlandica, 1987
SUMMARY The ultrastructure of cell division, with the emphasis on septum formation, is described in the ulvophycean green alga Ulothrixpalusalsa Lokhorst. Septum formation involves a cleavage furrow which is initiated before the onset of mitosis. The development of the cleavage furrow is most pronounced at the final mitotic stages when it shows a ...
P. J. Segaar, G. M. Lokhorst
openaire   +1 more source

Flip‐flop organization in the chloroplast genome of Capsosiphon fulvescens (Ulvophyceae, Chlorophyta)

Journal of Phycology, 2018
To better understand organelle genome evolution of the ulvophycean green alga Capsosiphon fulvescens, we sequenced and characterized its complete chloroplast genome. The circular chloroplast genome was 111,561 bp in length with 31.3% GC content that contained 108 genes including 77 protein‐coding genes, two copies of rRNA operons, and 27 tRNAs. In this
Dongseok Kim, JunMo Lee, Ji Won Choi, Ji Hyun Yang, Il‐Ki Hwang, Hwan Su Yoon   +5 more
openaire   +2 more sources

Ultrastructure and taxonomy of the genusEndophyton(Ulvales, Ulvophyceae)

European Journal of Phycology, 1997
Fine structure of vegetative cells, development and morphology of sporangia and general morphology of zoospores were studied for the first time in the genus Endophyton Gardner. Vegetative cells contained one parietal perforate chloroplast with 2–4 ulvophycean pyrenoids and transverse cell walls without plasmodesmata. Sporangial walls were formed by two
P. I. Leonardi, J. A. Correa, E. J. Cáceres   +2 more
openaire   +2 more sources

New Ulvaceae (Ulvophyceae, Chlorophyta) from mesophotic ecosystems across the Hawaiian Archipelago

Journal of Phycology, 2016
Ulvalean algae (Chlorophyta) are most commonly described from intertidal and shallow subtidal marine environments worldwide, but are less well known from mesophotic environments. Their morphological simplicity and phenotypic plasticity make accurate species determinations difficult, even at the generic level.
Heather L, Spalding, Kimberly Y, Conklin, Celia M, Smith, Charles J, O'Kelly, Alison R, Sherwood   +4 more
openaire   +2 more sources

Cloning and characterization of nitrate reductase gene in Ulva prolifera (Ulvophyceae, Chlorophyta)

Journal of Phycology, 2017
Ulva spp. dominates green tides around the world, which are occurring at an accelerated rate. The competitive nitrogen assimilation efficiency in Ulva is suggested to result in ecological success against other seaweeds. However, molecular characterization of genes involved in nitrogen assimilation has not been conducted.
Yang Guo, Hao Zhe Wang, Chun Hui Wu, Hui Hui Fu, Peng Jiang   +4 more
openaire   +2 more sources