Article
Plant Sciences
Nereida M. Rancel-Rodriguez, Julio Afonso-Carrillo, Ana Tronholm, Marta Sanson
Summary: Environmental and human factors are causing a significant decline in marine algae in regions like the Canary Islands, while new unidentified algae species continue to be discovered. In this study, a new turf-forming species of Pterocladiella was identified using morphological and molecular phylogenetics methods. The new species, Pterocladiella canariensis sp. nov., is characterized by its small size, ribbon-like erect axes, small polygonal cortical cells, circular cystocarp, spermatangial sori with sterile margins, and tetrasporangia arranged in V-shaped rows. Phylogenetic analyses suggest a link to Pterocladiella species endemic to South Africa and Madagascar.
Article
Environmental Sciences
Urania Lortou, Manthos Panou, Georgia Papapanagiotou, Georgia Florokapi, Christos Giannakopoulos, Savvas Kavoukis, Georgios Iakovou, Giorgos Zalidis, Konstantinos Triantafyllidis, Spyros Gkelis
Summary: This study isolated and identified 15 Dunaliella strains from active and abandoned saltworks in Greece, which were classified into nine species based on morphological features. The phylogenetic analysis revealed distinct clades among different Dunaliella species, indicating that morphological features may not always align with phylogenetic relationships. The strains produced a low amount of beta-carotene under laboratory conditions. This study provides valuable information on the diversity of Dunaliella strains in Greek saltworks and highlights the need for further molecular data on Dunaliella spp.
Article
Plant Sciences
Maria Luisa Nunez Resendiz, Abel Senties, Kurt M. Dreckmann, Oscar E. Hernandez, Martha Isabel Vilchis
Summary: This study identified genetically differentiated groups within Gelidiella acerosa using genetic sequence data, and classified the Atlantic group as an independent species of the cryptic complex. Gelidiella papillosa sp. nov. is supported only by its genetic independence and allopatric distribution.
Article
Biochemical Research Methods
Marco A. Tangaro, Giuseppe Defazio, Bruno Fosso, Vito Flavio Licciulli, Giorgio Grillo, Giacinto Donvito, Enrico Lavezzo, Giacomo Baruzzo, Graziano Pesole, Monica Santamaria
Summary: ITSoneWB is a Galaxy-based bioinformatic environment that integrates comprehensive reference data with established pipelines and new tools, providing an automated and easy-to-use service for global taxonomic analysis of eukaryotic communities based on high-throughput sequencing of Internal Transcribed Spacer 1 variants.
Article
Genetics & Heredity
Nur Azreen Saidon, Alina Wagiran, Abdul Fatah A. Samad, Faezah Mohd Salleh, Farhan Mohamed, Jaeyres Jani, Alona C. Linatoc
Summary: In this study, the usefulness of ITS1 and ITS2 secondary structure for the molecular identification of Nepenthes species was investigated using three DNA barcodes. The results showed that PCR and sequencing were both successful, and ITS1 and ITS2 had higher efficiency as DNA barcodes compared to rbcL. The secondary structure successfully distinguished between Nepenthes species.
Article
Agricultural Engineering
J. Nallasivam, P. Francis Prashanth, S. Harisankar, Srisailaja Nori, Shrikumar Suryanarayan, S. R. Chakravarthy, R. Vinu
Summary: Hydrothermal liquefaction of red macroalgae species with different catalysts resulted in varied bio-crude yields and compositions; the bio-crude exhibited high calorific values, while biochars had lower values; the deoxygenation degree and energy recovery of bio-crude were significantly affected by different treatment conditions.
BIORESOURCE TECHNOLOGY
(2022)
Article
Marine & Freshwater Biology
Yukimasa Yamagishi, Kazuhiro Kogame, Michio Masuda
Summary: A new red alga species, Dasya japonovillosa, is introduced from Japan. This species, as well as D. enomotoi, were previously misidentified as D. villosa by researchers in Japan due to their elongated axes densely covered with soft monosiphonous filaments. Dasya villosa can be distinguished from D. japonovillosa and D. enomotoi by the presence of five pericentral cells in transverse sections and palisade-like tetrasporangial cover cells. The unique characteristics of the new species include elongated axis (up to 65 cm), subdichotomously divided axes and polysiphonous branches, indistinct pericentral cells in transverse sections except near the apices, enlarged inner cortical cells, radially arranged numerous soft monosiphonous filaments, three-celled carpogonial branches, four tetrasporangia in each fertile segment of the stichidia, and one (rarely two) tetrasporangial cover cell that is not elongated longitudinally and rarely divided transversely.
PHYCOLOGICAL RESEARCH
(2022)
Article
Plant Sciences
Xianying Wen, Giuseppe C. Zuccarello, Eunyoung Shim, Soo Yeon Kim, Gwang Hoon Kim
Summary: Four species of Erythrotrichia have been reported in Korea, but no phylogenetic studies have been conducted. This study analyzed two newly collected Erythrotrichia isolates and identified a new species named Erythrotrichia johnawestii sp. nov. The new species differs from E. carnea in terms of outer cell wall layer and cell size. The study also observed the characteristics of the new species, such as the production of monospores and the absence of sexual reproduction during the culture period.
Article
Multidisciplinary Sciences
Saleh Al Quraishy, Esam M. Al-Shaebi, Maysar Abu Hawsah, Tahani Al-Otaibi, Wafa A. Al-Megrin, Manal F. El-khadragy, Mohamed A. Dkhil, Eman Alshehri, Rewaida Abdel-Gaber
Summary: This study morphologically described and molecularly characterized oocysts recovered from Mus musculus, identifying them as Eimeria papillata. The ITS1 region was found to be a potentially useful marker for differentiating strains of Eimeria species in rodents.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2022)
Article
Cell Biology
Elena Kezlya, Yevhen Maltsev, Sergei Genkal, Zinaida Krivova, Maxim Kulikovskiy
Summary: The morphology, ultrastructure, and phylogeny of eight soil diatom strains assigned to the Pinnularia genus were studied, with six new species identified and described for the first time. Molecular phylogeny reconstruction grouped the new strains with different subclades within Pinnularia. Fatty acid profiles of the algae cultured on specific medium showed high yields of saturated and monounsaturated fatty acids, making the novel Pinnularia strains promising feedstock for biofuel production.
Article
Plant Sciences
Tsvetanka Raycheva, Kiril Stoyanov, Samir Naimov, Elena Apostolova-Kuzova
Summary: Three populations of a new species from the genus Crocus, series Verni, were discovered in the Pirin Mountains. Despite morphological similarities to C. veluchensis, molecular analysis revealed a closer relationship to C. heuffelianus. Based on comprehensive analyses, including morphology, anatomy, molecular and geographic data, the populations were classified as C. heuffelianus. The species is similar to C. veluchensis in altitude and morphology but differs in certain characteristics.
Article
Plant Sciences
Ganies Riza Aristya, Wun-Ruei Chang, Silvia Fontana, Orlando Necchi, Shao-Lun Liu
Summary: In this study, we described two new species of the genus Kumanoa - K. taiwanensis and K. yuanyangensis. Through molecular evidence and morphological characteristics, we confirmed the establishment of these two new species. This study expands the known diversity of Kumanoa and provides new insights into their biogeography.
Article
Plant Sciences
Mayara C. B. S. Rocha, Sonia M. B. Pereira, Maria F. Oliveira-Carvalho, Ana M. Benko-Iseppon, Caroline F. Ximenes, Mutue T. Fujii, Valeria Cassano
Summary: This study evaluated the diversity of Udotea in northeastern Brazil using morphological-based taxonomy and plastid molecular markers. A new species, Udotea dotyi, was discovered in the western south Atlantic Ocean. Further studies are needed to define a taxon named as 'Udotea cyathiformis'.
Review
Plant Sciences
Michael Borg, Stacy A. Krueger-Hadfield, Christophe Destombe, Jonas Collen, Agnieszka Lipinska, Susana M. Coelho
Summary: Rhodophyta (or red algae) are a diverse group with small intron-poor genomes, a lack of motility-related cytoskeletal structures, and a highly efficient photosynthetic capacity. Despite their ecological, evolutionary, and commercial importance, red macroalgae have been understudied. With the increasing availability of red algal genome sequences, this overview anticipates that research in various domains of red algal biology will be accelerated in the future.
Article
Environmental Sciences
Marc Terradas-Fernandez, Miguel Valverde-Urrea, Federico Lopez-Moya, Yolanda Fernandez-Torquemada
Summary: This study reports the first presence of a Batophora species in the Iberian Peninsula, specifically in the Mar Menor lagoon in SE Spain. Further investigations confirmed the widespread presence of this species in the lagoon. Morphological and genetic analyses are needed to understand the origin and expansion of this genus along the Mediterranean coasts.
