Botanica Marina最新文献_第2页

Kapraunia silviae (Rhodomelaceae, Rhodophyta), a new species from the South Atlantic Ocean Kapraunia silviae（红藻科，红藻属），南大西洋的一个新物种

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-07-03 DOI: 10.1515/bot-2023-0101

Jhullyrson O.F. de Brito, Valéria Cassano

{"title":"Kapraunia silviae (Rhodomelaceae, Rhodophyta), a new species from the South Atlantic Ocean","authors":"Jhullyrson O.F. de Brito, Valéria Cassano","doi":"10.1515/bot-2023-0101","DOIUrl":"https://doi.org/10.1515/bot-2023-0101","url":null,"abstract":"Kapraunia is a genus recently segregated from Polysiphonia sensu lato, with only four species so far known. However, no species have been found on the South Atlantic coast. Recent collections in southwestern Brazil revealed specimens morphologically similar to Kapraunia spp. To investigate the identity of these specimens, we carried out a morphological and molecular study based on COI-5P and rbcL sequences. Phylogenetic analysis placed our samples within the genus Kapraunia as a new species with full support, described here as Kapraunia silviae sp. nov. K. silviae is recognizable by a combination of characters such as attachment by a basal disc and a prostrate system, branches developing laterally to the trichoblasts, 5–6 pericentral cells, rarely 4. The species differs from K. pentamera by the attachment form, segment proportions and tetrasporangial dimensions, and from K. schneideri by the number of pericentral cells, branch development and tetrasporangial arrangement. Re-examination of herbarium samples from Brazil in older collections also revealed misidentifications of K. silviae as “Carradoriella denudata”. This new species seems to be restricted to the Brazilian coast, being found only on the northern coast of São Paulo state. Our results reinforce the need for revision of Polysiphonia s.l. species on the Brazilian coast.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New record of the green macroalga Gayralia brasiliensis (Ulotrichales, Chlorophyta) in Singapore 新加坡绿色大型藻类 Gayralia brasiliensis（Ulotrichales, Chlorophyta）的新记录

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-07-03 DOI: 10.1515/bot-2024-0014

Yu Fei Ng, Regina Shu Wen Yeo, Danwei Huang

引用次数: 0

Three new Lobophora species (Dictyotales, Phaeophyceae) from Phuket on the west coast of Thailand 来自泰国西海岸普吉岛的三个 Lobophora 新种（Dictyotales, Phaeophyceae)

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-06-27 DOI: 10.1515/bot-2024-0026

Narapat Jurejan, Stefano G.A. Draisma, Christophe Vieira, Zhongmin Sun, Piyathap Avakul, Anirut Klomjit, Anong Chirapart, Narongrit Muangmai

{"title":"Three new Lobophora species (Dictyotales, Phaeophyceae) from Phuket on the west coast of Thailand","authors":"Narapat Jurejan, Stefano G.A. Draisma, Christophe Vieira, Zhongmin Sun, Piyathap Avakul, Anirut Klomjit, Anong Chirapart, Narongrit Muangmai","doi":"10.1515/bot-2024-0026","DOIUrl":"https://doi.org/10.1515/bot-2024-0026","url":null,"abstract":"The systematics and biogeography of the brown seaweed genus Lobophora (Dictyotales) are increasingly being investigated globally using DNA data coupled with morphology. In Thailand, DNA-assisted Lobophora diversity assessment has been limited to the east coast. The present study employed molecular (cox3, psbA, and rbcL gene sequences) and morphological analyses to explore the diversity of Lobophora around Phuket Island on the Thai west coast. Our findings revealed three new species: Lobophora phuketensis sp. nov., L. andamanensis sp. nov., and L. rachaensis sp. nov. Phylogenetic analyses clearly demonstrated that these new species are genetically distinct from other Lobophora species. These new Lobophora species can be distinguished morphologically by differences in their growth habit, coloration, and thallus thickness, despite some overlapping morphological traits. Our study has increased the known Lobophora diversity in Thailand to 12 species, the highest in Southeast Asia. We also detected ecological similarities and differences among these Lobophora species. This research enhances our understanding of the biodiversity and biogeographic patterns of Lobophora in Thailand and the Central Indo-Pacific region. Further studies should investigate Lobophora diversity in unsampled areas and explore ecological factors facilitating sympatric coexistence through field observations and experiments.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pseudogomphonema lukinicum sp. nov. (Bacillariophyceae), a new endophytic diatom found inside multicellular red algae from the Northwest Pacific 西北太平洋多细胞红藻中新发现的内生硅藻 Pseudogomphonema lukinicum sp.

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-06-24 DOI: 10.1515/bot-2024-0029

Inna V. Stonik, Anna V. Skriptsova

{"title":"Pseudogomphonema lukinicum sp. nov. (Bacillariophyceae), a new endophytic diatom found inside multicellular red algae from the Northwest Pacific","authors":"Inna V. Stonik, Anna V. Skriptsova","doi":"10.1515/bot-2024-0029","DOIUrl":"https://doi.org/10.1515/bot-2024-0029","url":null,"abstract":"In our collections from the Northwest Pacific waters, we found several specimens of the red algae Lukinia dissecta and Callophyllis perestenkoae with darker spots on their thalli, which contained an unusual pennate diatom. A detailed morphological analysis based on light and scanning electron microscopy observations made it possible to describe a new species of endophytic diatom, Pseudogomphonema lukinicum sp. nov. Stonik et Skriptsova. The new species has some morphological features typical of the genus, such as the heteropolarity of the valves, the presence of pseudosepta and small apical chambers at both poles of the valves, and nonporous girdle bands. Pseudogomphonema lukinicum has been described and distinguished from the other species in the genus on the basis of a combination of morphological traits, including relatively small cell dimensions, a slightly asymmetrical valve to the transapical axis, with obtusely rounded headpole and narrower footpole, the large asymmetrical central area, and the presence of apical chambers at both poles. Pseudogomphonema lukinicum is the second representative of Pseudogomphonema known to be living endophytically. The data on the species composition of endophytic diatoms in marine macroalgae, their habitats, and host organisms reported in the literature to date are summarized.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of cryptic invasion in Japanese Undaria populations based on mitochondrial haplotypic analysis 基于线粒体单倍型分析对日本裙带菜种群隐性入侵的评估

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-06-24 DOI: 10.1515/bot-2024-0002

Shinya Uwai, Daisuke Saito, Yoichi Sato

{"title":"Evaluation of cryptic invasion in Japanese Undaria populations based on mitochondrial haplotypic analysis","authors":"Shinya Uwai, Daisuke Saito, Yoichi Sato","doi":"10.1515/bot-2024-0002","DOIUrl":"https://doi.org/10.1515/bot-2024-0002","url":null,"abstract":"To improve the quality and quantity of seaweed mariculture harvests, seedlings are frequently introduced from regions geographically apart from cultivation sites. The effects of such introduction have been insufficiently studied, despite increasing demands on seaweed cultivation as a measure against global warming. We here evaluated the degree of cryptic invasion occurring through mariculture using a brown algal species, Undaria pinnatifida. Cultivated materials used in the Seto Inland Sea, Japan, were introduced from northern Japan in the 1970s. Based on the clear genetic structure among Japanese Undaria populations, we compared mitochondrial haplotypes between wild populations and cultivated materials in the Seto Inland Sea. All cultivated materials analyzed had haplogroups native to northern Japan. Multiple haplogroups were observed in the wild populations, especially those in the eastern Seto Inland Sea, which is exceptional considering the reported genetic structure. Some northern Japan haplotypes were observed both in cultivated materials and wild individuals. A northern Japan haplogroup was predominant at several sites near Undaria-cultivation sites. These results strongly suggested that cryptic invasion through Undaria mariculture occurred here, although its ecological impact remains unclear. There is a clear risk of invasion by mariculture seedlings from other regions, even when native conspecific populations are present.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A DNA barcode inventory of the genus Ulva (Chlorophyta) along two Italian regions: updates and considerations 意大利两个地区莼菜属（叶绿体）的 DNA 条形码清单：更新和考虑因素

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-06-21 DOI: 10.1515/bot-2023-0071

Simona Armeli Minicante, James T. Melton, Damiano Spagnuolo, Antonio Manghisi, Giuseppa Genovese, Marina Morabito, Juan Lopez-Bautista

{"title":"A DNA barcode inventory of the genus Ulva (Chlorophyta) along two Italian regions: updates and considerations","authors":"Simona Armeli Minicante, James T. Melton, Damiano Spagnuolo, Antonio Manghisi, Giuseppa Genovese, Marina Morabito, Juan Lopez-Bautista","doi":"10.1515/bot-2023-0071","DOIUrl":"https://doi.org/10.1515/bot-2023-0071","url":null,"abstract":"The genus Ulva Linnaeus 1753 is well known for its global distribution and containing many taxonomically debated species. Their morphological plasticity and cryptic nature overrepresent and underrepresent, respectively, the biodiversity of these species. The difficulty in morphologically identifying Ulva species has led to the accumulation of many species names that are currently considered synonyms. The correct identification of these species is crucial due to their significant role in marine ecosystems and mariculture. In the last 30 years, several checklists and taxonomic contributions have been made from the Italian coast on Ulva species, almost entirely based on morphological studies and only a few papers with molecular data have been published. In this study, samples deposited at the Institute of Marine Sciences (ISMAR) and Phycological Lab (PHL) herbaria have been reviewed by sequencing the chloroplast-encoded elongation factor Tu (tufA) barcode marker. The results obtained provide an update of the DNA barcode inventory of Ulva species for the Lagoon of Venice and the Strait of Messina, two ecosystems characterized by a high algal biogeographical diversity and continuous introduction due to anthropogenic activities. Here, ten Ulva species were identified based on molecular data. Furthermore, we record the presence of Ulva chaugulei on the coast of Tunisia.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphology and molecular phylogeny of Gonyaulax kunsanensis sp. nov. (Gonyaulacales, Dinophyceae) from Korean coastal waters 韩国沿海水域 Gonyaulax kunsanensis sp.

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-06-20 DOI: 10.1515/bot-2023-0106

Hyeon Ho Shin, Zhun Li, Kenneth Neil Mertens, Yeong Du Yoo, Joo Yeon Youn, Minji Lee, Haifeng Gu

{"title":"Morphology and molecular phylogeny of Gonyaulax kunsanensis sp. nov. (Gonyaulacales, Dinophyceae) from Korean coastal waters","authors":"Hyeon Ho Shin, Zhun Li, Kenneth Neil Mertens, Yeong Du Yoo, Joo Yeon Youn, Minji Lee, Haifeng Gu","doi":"10.1515/bot-2023-0106","DOIUrl":"https://doi.org/10.1515/bot-2023-0106","url":null,"abstract":"Two Gonyaulax-like strains were established by isolating cells from Korean coastal waters, and their morphologies and molecular phylogenies based on SSU and LSU rRNA gene sequences were examined. The motile cells displayed neutral torsion and a plate formula typical for the genus Gonyaulax, and were characterized by a reticulated surface with many pores, and a marked antapical flange on the boundary between 1″″ and 2p or two prominent spines. The reticulate ornamentation was sometimes absent on the plate margin or on the entire plate. Pronounced rows of pores on the margins of precingular, cingular and postcingular plates were observed, and especially a distinct pore was always present on the margin of the anterior sulcal plate contacting with 1″. A spiniferate resting cyst had a red body, gonal and intergonal processes, and an antapical flange. In the phylogenetic tree, the Korean isolates had a close relationship to Gonyaulax membranacea and were clearly divergent from other Gonyaulax species. These species can be distinguished by the presence or absence of a distinct pore on the margin of the anterior sulcal plate in touch with 1″, and different process types in cyst morphology. Based on these morpho-molecular data, Gonyaulax kunsanensis sp. nov. is proposed.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cosmopolitan geographic distribution of Phaeosaccion multiseriatum (Phaeosacciaceae, Phaeosacciophyceae), and description of P. westermeieri sp. nov. from Chile Phaeosaccion multiseriatum（Phaeosacciaceae，Phaeosacciophyceae）的世界性地理分布，以及来自智利的 P. westermeieri sp.

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-06-20 DOI: 10.1515/bot-2024-0004

Akira F. Peters, Liliana A. Muñoz, Niko R. Johansson, Anastasia Rizouli, Michael D. Guiry, Ga Youn Cho, Frithjof C. Küpper

{"title":"Cosmopolitan geographic distribution of Phaeosaccion multiseriatum (Phaeosacciaceae, Phaeosacciophyceae), and description of P. westermeieri sp. nov. from Chile","authors":"Akira F. Peters, Liliana A. Muñoz, Niko R. Johansson, Anastasia Rizouli, Michael D. Guiry, Ga Youn Cho, Frithjof C. Küpper","doi":"10.1515/bot-2024-0004","DOIUrl":"https://doi.org/10.1515/bot-2024-0004","url":null,"abstract":"The minute marine multicellular heterokont alga originally described as “Giraudyopsis stellifer” by P.J.L. Dangeard, nom. inval., from Atlantic France, was re-isolated by the germling emergence technique and classified according to psaA and psbC sequences. It is genetically similar (99–100 % identity) to Phaeosaccion multiseriatum R.A. Andersen, L. Graf et H.S. Yoon recently described from the NE Pacific, an ephemeral alga of wide geographical distribution. We isolated it also from substratum samples collected in Korea and the Falkland Islands, where it had not been reported previously. Two isolates of similar morphology from the coast of Chile had the same nuclear ribosomal SSU sequence but differed from P. multiseriatum and P. okellyi R.A. Andersen, L. Graf et H.S. Yoon from New Zealand in psaA and psbC sequences (3–4 % genetic distance). These two isolates are here described as Phaeosaccion westermeieri sp. nov.. Our isolations of P. multiseriatum and P. westermeieri are a further demonstration that the germling emergence technique can reveal microscopic multicellular benthic algae that are easily overlooked in the field.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Occurrence of Dictyosphaeria (Cladophorales, Chlorophyta) species on the Brazilian coast and oceanic islands, based on morphological and molecular data 根据形态学和分子数据，巴西海岸和大洋岛屿上出现的 Dictyosphaeria（Cladophorales，叶绿体）物种

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-05-03 DOI: 10.1515/bot-2023-0066

Jhullyrson Osman Ferreira de Brito, Michelle Cristine Santos Silva, Mariana Cabral Oliveira, Franciane Pellizzari, Valéria Cassano, Watson Arantes Gama

{"title":"Occurrence of Dictyosphaeria (Cladophorales, Chlorophyta) species on the Brazilian coast and oceanic islands, based on morphological and molecular data","authors":"Jhullyrson Osman Ferreira de Brito, Michelle Cristine Santos Silva, Mariana Cabral Oliveira, Franciane Pellizzari, Valéria Cassano, Watson Arantes Gama","doi":"10.1515/bot-2023-0066","DOIUrl":"https://doi.org/10.1515/bot-2023-0066","url":null,"abstract":"Molecular data related to morphology from the multicellular vesiculated genus Dictyosphaeria are scarce. We provide the first molecular data on Dictyosphaeria species from the southwestern Atlantic Ocean, sampled from the Brazilian northeastern coast, and two oceanic islands (Trindade, southeastern Brazil, and Fernando de Noronha, northeastern Brazil). The samples from Brazil were morphologically identified as Dictyosphaeria versluysii and D. ocellata. Our newly generated sequences of D. versluysii formed a monophyletic clade, while their relationship with D. versluysii from the Indo-Pacific Ocean, where the type locality of the species is located, was unresolved. Additionally, the newly generated sequences of D. ocellata confirm its status as a distinct species but reinforce the difficulties in morphologically separating this species. These results might be indicative of cryptic diversity in D. versluysii and highlight the need for molecular data from other geographic locations to understand the diversity and distribution of Dictyosphaeria species.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140839763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A life for science and seaweeds: Klaus-Otto Lüning (1941–2023) 为科学和海藻而生克劳斯-奥托-吕宁（1941-2023）

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-05-01 DOI: 10.1515/bot-2024-0023

I. Bartsch, B. Buck, Shaojun Pang

引用次数: 0