Article
Biodiversity Conservation
Nikolay V. Lobus, Anton M. Glushchenko, Sergei I. Genkal, Yevhen I. Maltsev, Maxim S. Kulikovskiy
Summary: A new species, Fragilaria shirshovii sp. nov., was identified and described based on molecular and morphological investigations. The species was isolated from desalinated water masses in the Gulf of Ob, where river and marine waters mix. The study analyzed the morphology of the species using light microscopy and scanning electron microscopy. The importance rating for this article is 8 out of 10.
Article
Plant Sciences
Edilene Maria dos Santos Pestana, Jose Marcos de Castro Nunes, Valeria Cassano, Goia de Mattos Lyra
Summary: The Peyssonneliaceae is the only family in the order Peyssonneliales, encompassing widespread red encrusting algae. Through molecular phylogenies and morphological analyses, a revised taxonomic scheme for the Peyssonneliales has been proposed, uncovering underestimated diversity in Brazilian red algae.
JOURNAL OF PHYCOLOGY
(2021)
Article
Engineering, Marine
Meng-Chou Lee, Han-Yang Yeh
Summary: The newly discovered Taiwanese alga Colaconema formosanum is a new species associated with economically important local macroalgae, confirmed through morphological and molecular analysis.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Plant Sciences
Paul W. Gabrielson, Gavin W. Maneveldt, Jeffery R. Hughey, Viviana Pena
Summary: Phylogenetic analyses of rbcL gene sequences and concatenated rbcL, psbA, and nuclear SSU rRNA gene sequences identified Lithothamnion muelleri and three other southern Australian species as the generitype of the genus Lithothamnion. Cold water boreal species previously classified in Lithothamnion were transferred to the newly described genus Boreolithothamnion, with B. glaciale as the generitype. The discussion emphasizes the importance of using phylogenetic analyses to understand and correctly classify non-geniculate corallines based on morpho-anatomical characters.
JOURNAL OF PHYCOLOGY
(2023)
Article
Plant Sciences
Richard V. Dumilag, Glenn Cedrick V. Gamus, Sandra L. Yap
Summary: A new seaweed, Pseudobangia corderoi, previously misidentified as Bangia fuscopurpurea, was described from the Philippines. Molecular analysis showed that P. corderoi is closely related to an unidentified Pseudobangia species from Taiwan, and they are the closest relatives to Pseudobangia kaycoleae. Phylogenetic studies also confirmed the monophyly of Pseudobangia and its sister relationship with the 'Bangia 2' lineage. Morpho-anatomical analysis only found one distinguishing character, larger thallus dimensions, for P. corderoi compared to other filamentous Bangiales.
Article
Plant Sciences
Ga Hun Boo, Jeong Kwang Park, Kyu Sam Han, Hwan Su Yoon
Summary: A new species of Gelidium rosulatum from the subtidal zone in eastern Korea is described based on morphological observations and molecular analyses. The distinctness of the new species is revealed through phylogenetic analysis and it is closely related to other East Asian species and G. chilense.
Article
Plant Sciences
Masahiro Suzuki, Ryuta Terada
Summary: A new flattened species of Gracilariopsis from Mageshima Island, Japan, named Gp. mageshimensis sp. nov., shows distinct characteristics based on morphological and molecular analyses, and belongs to the Gracilariopsis clade.
Article
Plant Sciences
Gina A. Tonicelli, Maria Emilia Croce, Pilar Diaz-Tapia, Suzanne Fredericq, David Wilson Freshwater, Maria Cecilia Gauna, Elisa R. Parodi, Heroen Verbruggen, Max H. Hommersand
Summary: This study used DNA sequences and morphological observations to confirm that Cystoclonium obtusangulum actually consists of two distinct species, leading to the proposal of a new genus name Meridionella. These two species are morphologically similar but have different distributions, one found in South America and the Falkland Islands, and the other occurring in Antarctic waters.
JOURNAL OF PHYCOLOGY
(2021)
Article
Plant Sciences
Monica Gajanan Kavale, Mudassar Anisoddin Kazi, Juliet Brodie
Summary: The study discusses the diversity of bladed Bangiales along the coast of India, identifying a new species. This seasonal algae was discovered and described in Karwar, with further analysis suggesting the need for revision of these algae species.
EUROPEAN JOURNAL OF PHYCOLOGY
(2021)
Article
Plant Sciences
Panangattu Sankarji Jayalakshmi, Jose John, Arya Sidharthan
Summary: A new species of the freshwater red algal genus Kumanoa, Kumanoa periyarensis, is described based on morphology and genetic data. It is distinguished from other species by its unique combination of morphological characters and is genetically distinct from its sister species, Kumanoa tabagatenensis.
Article
Plant Sciences
Danilo E. Bustamante, Boo Yeon Won, Michael J. Wynne, Tae Oh Cho
Summary: Recent segregation of 12 genera in the tribe Streblocladieae has updated the taxonomy of certain species belonging to Polysiphonia sensu lato, with new combinations being proposed. Six new additions to the tribe have been made based on morphological and molecular analyses, including the description of a new species and proposal of new combinations. The study also identified additional diagnostic features for two genera within the tribe, providing insights into distribution, diagnostic features for delimiting genera morphologically, and molecular evolutionary relationships.
JOURNAL OF PHYCOLOGY
(2021)
Article
Plant Sciences
Masahiro Suzuki, Taiju Kitayama
Summary: A new species of Sheathia, Sheathia yoshizakii, is described from Chiba Prefecture, Japan, based on morphological studies and molecular analyses. This species is distinct from other Sheathia species and represents the first confirmed Sheathia species in Japan using DNA sequence data.
Article
Engineering, Marine
D. Wilson Freshwater, Cathryn E. Miller, Thomas A. Frankovich, Michael J. Wynne
Summary: Epizoic macroalgae collected from West Indian manatees' skin include two novel species of Caloglossa, Caloglossa kamiyana and Caloglossa manaticola. These species show morphological and genetic divergence from their closely related taxa.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Marine & Freshwater Biology
Gongaote Zhang, Yalan Sheng, Yujie Liu, Xiao Cao, Saleh A. Al-Farraj, Peter Vdacny, Hongbo Pan
Summary: This study investigates three new Amphileptus species discovered in northern China using standard alpha-taxonomic methods. Phylogenetic analysis of nuclear small subunit ribosomal DNA (SSU rDNA) sequences suggests that the family Amphileptidae might be monophyletic while the genus Amphileptus is paraphyletic, with multiple well-delimited species groups.
MARINE LIFE SCIENCE & TECHNOLOGY
(2022)
Article
Plant Sciences
Conxi Rodriguez-Prieto, Soha Hamdy Shabaka, Nihal Shams El-Din, Olivier De Clerck
Summary: This study reports the discovery of a large foliose Grateloupia species in the Eastern Harbour of Alexandria, Egypt, which was identified as Grateloupia gibbesii through comparison of gene sequences. This suggests a recent introduction of the species into the Mediterranean Sea, with shipping as the likely vector.
Article
Ecology
Louis Graf, Younhee Shin, Ji Hyun Yang, Ji Won Choi, Il Ki Hwang, Wendy Nelson, Debashish Bhattacharya, Frederique Viard, Hwan Su Yoon
Summary: Human-driven evolutionary changes in a globally distributed Pacific kelp were examined by comparing the genomes of natural, cultivated, and introduced populations. The study revealed that these three categories of origin can be distinguished at the genome level, reflecting the combined influence of neutral (demography and migration) and non-neutral (selection) processes.
NATURE ECOLOGY & EVOLUTION
(2021)
Article
Plant Sciences
Wendy A. Nelson, Kate F. Neill, Brenton A. Twist, Judy E. Sutherland
Summary: A new genus and species Roseapetra farriae in the order Sporolithales is described based on material from northern New Zealand. This taxon shows diagnostic features of the order but cannot be distinguished from Heydrichia based on morpho-anatomical characters, requiring sequence data for recognition. Roseapetra farriae is found in shaded, understorey habitats on rocky reefs in the low intertidal zone.
Article
Plant Sciences
So Young Jeong, Guillermo Diaz-Pulido, Gavin W. Maneveldt, Paul W. Gabrielson, Wendy A. Nelson, Boo Yeon Won, Tae Oh Cho
Summary: A multigene molecular phylogeny was conducted to study the genus Phymatolithon. The study revealed the polyphyletic grouping of two monophyletic clades within the Hapalidiales. As a result, a new genus, Phymatolithopsis, was established, consisting of three species. Phymatolithopsis is closely related to Mesophyllum and is distinct from Phymatolithon and boreal species assigned to Lithothamnion. Morpho-anatomical characteristics were used to differentiate Phymatolithopsis from Phymatolithon, including the origin of conceptacle primordia and the distribution of gonimoblast filaments in carposporangial conceptacles.
JOURNAL OF PHYCOLOGY
(2022)
Article
Plant Sciences
Maren Preuss, Wendy A. Nelson, Roberta D'Archino
Summary: Molecular techniques have revealed two cryptic clades within the temperate red alga Asparagopsis armata, originating from Australia and New Zealand. Haplotype variation has been identified within each clade, with different distributions in Australia, Europe, South Africa, and New Zealand. Further research is needed to explore the differences in morphology, physiology, and biochemistry of genetically distinct mitochondrial lineages within each clade.
Biographical-Item
Plant Sciences
Wendy A. Nelson, Ewen K. Cameron
Article
Marine & Freshwater Biology
Wendy A. Nelson
Summary: A new species of the southern hemisphere genus Clymene, C. sutherlandiae, is described based on collections from New Zealand and Tasmania, and compared with the previously known species C. coleana.
PHYCOLOGICAL RESEARCH
(2022)
Article
Environmental Sciences
Wendy A. Nelson, Kate F. Neill, Roberta D'Archino, Judy E. Sutherland
Summary: The macroalgae of the Balleny Islands are poorly known and further taxonomic research is needed. Although the existing collections provide insights into the relationships between macroalgae around Antarctica, more samples are required to understand the biodiversity of the Balleny Islands.
Article
Plant Sciences
Brenton A. Twist, Ashley A. Rowden, Christopher D. Hepburn, Wendy A. Nelson
Summary: This study used DNA-based species identifications to explore the composition of coralline algal communities and examined the environmental variables that drive community structure along the New Zealand coastline. The research found that sea surface temperature and light were significant factors affecting the composition of coralline algal communities, while wave exposure and turbidity had less influence.
Article
Plant Sciences
Wendy Nelson, Bruce Ngauma, Jerry H. Norman, Sandi Ringham, Judy Sutherland
Summary: Phylogenetic analyses revealed that the specimens previously identified as Sonderophycus coriaceus from Manawatawhi/Three Kings Islands actually belong to the genus Agissea, and were named as Agissea teruruhau. A new red algal epiphyte species, Piriora waewaiti, was discovered on Agissea teruruhau. These findings have increased the reported endemic algal flora of the Manawatawhi/Three Kings Islands and confirmed the presence of Olokunia boudouresquei and three other species of Peyssonneliales in the New Zealand flora.
Article
Plant Sciences
Pilar Diaz-Tapia, Wendy A. Nelson, Heroen Verbruggen
Summary: DNA sequencing was used to study the taxonomy of two Australian red algal species, one of which was found to be identical to the European Aphanocladia stichidiosa. However, it was unexpectedly classified in the Lophurella genus rather than Aphanocladia. Another Australian species was described as L. pseudocorticata sp. nov. The study highlights the importance of using phylogenetic approaches to identify and determine the native ranges of introduced species.
JOURNAL OF PHYCOLOGY
(2023)
Article
Limnology
Erik C. Krieger, Wendy A. Nelson, Johan Grand, Eric C. Le Ru, Sarah J. Bury, Amelie Cossais, Simon K. Davy, Christopher E. Cornwall
Summary: This study assesses the calcification physiology of five cool temperate coralline algae in response to different irradiance levels and finds that the enhancement of calcification rates is limited to lower irradiances. The study also suggests the existence of two calcification strategies and indicates that magnesium incorporation is determined by the magnesium to calcium ratio in the calcifying fluid.
LIMNOLOGY AND OCEANOGRAPHY
(2023)
Article
Plant Sciences
Wendy A. Nelson, Kate F. Neill, Maren Preuss, Judy E. Sutherland
Summary: The carrageenophyte red alga Sarcothalia radula (previously known as Gigartina radula) is a safe source of carrageenan hydrocolloid and a food additive, as well as a potential source of compounds for various commercial applications. However, the type material and type locality of the species has been unclear. This study discusses the possible collection location and argues that it was collected during Captain Cook's second voyage to southern New Zealand. The study also designates a lectotype and an epitype.
Article
Plant Sciences
Aimee L. van der Reis, Mary A. Sewell, Wendy A. Nelson
Summary: This study explores the diversity and identification of crustose coralline algae (CCA) using different preservation methods and molecular biology techniques. The results show that CCA has immense diversity, with higher diversity in the inner layers compared to the outer layers. Among the molecular markers tested, the 23S rRNA and rbcL genes are more suitable for identifying algae, while the cox1 gene captures a broader range of diversity, including algae.
JOURNAL OF PHYCOLOGY
(2023)
Review
Plant Sciences
Christopher E. Cornwall, Wendy A. Nelson, J. David Aguirre, Caitlin O. Blain, Lucy Coyle, Roberta D'Archino, Matthew J. Desmond, Christopher D. Hepburn, Libby Liggins, Nick T. Shears, Mads S. Thomsen
Summary: The impacts of global climate change on New Zealand's seaweed ecosystems, including increasing marine heatwaves, coastal darkening, and ocean acidification, have been observed. These impacts have already led to negative effects on canopy forming brown algae and are predicted to cause poleward range shifts and reduced growth rates of seaweed species. The interaction between global climate change and local stressors, such as overfishing, will determine the future of New Zealand's seaweed ecosystems.
NEW ZEALAND JOURNAL OF BOTANY
(2023)
Article
Plant Sciences
Paul W. Gabrielson, Jeffery R. Hughey, Viviana Pena, Joseph L. Richards, Gary W. Saunders, Brenton Twist, Tracy Farr, Wendy A. Nelson
Summary: To resolve the uncertainty around taxonomic classification of Sporolithon species, targeted PCR sequencing was conducted on historical and recently collected specimens. The results confirmed the existence of distinct species and identified previously misclassified specimens. DNA sequencing of type specimens of coralline species was shown to be the most reliable method for accurate naming.