Botanica Marina最新文献_第3页

Feasibility of ex-situ recruitment and outplanting of Gongolaria nodicaulis (Fucales, Phaeophyceae) for restoration of warm temperate marine forests in Atlantic Morocco 为恢复摩洛哥大西洋的暖温带海洋森林而异地招募和外植贡戈拉利亚裸子植物（Fucales, Phaeophyceae）的可行性

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-04-30 DOI: 10.1515/bot-2023-0093

Khaoula Khaya, Annalisa Falace, Ester A. Serrão, João Neiva, Abdeltif Reani, Brahim Sabour, Zahira Belattmania

{"title":"Feasibility of ex-situ recruitment and outplanting of Gongolaria nodicaulis (Fucales, Phaeophyceae) for restoration of warm temperate marine forests in Atlantic Morocco","authors":"Khaoula Khaya, Annalisa Falace, Ester A. Serrão, João Neiva, Abdeltif Reani, Brahim Sabour, Zahira Belattmania","doi":"10.1515/bot-2023-0093","DOIUrl":"https://doi.org/10.1515/bot-2023-0093","url":null,"abstract":"Brown algal forests provide many ecosystem services but are declining worldwide, prompting a growing number of conservation and restoration efforts. Recent attempts to recover Cystoseira forests are encouraging in the Mediterranean, but whether this is possible in more challenging Atlantic conditions has not yet been investigated. In this study, we assess the feasibility of cultivating Gongolaria nodicaulis by producing ex-situ recruits for reforestation on the Atlantic coast of Morocco. Embryos of G. nodicaulis were cultured on clay tiles for 26 days under controlled conditions without water motion, reaching an average length of 3 mm before being outplanted on the intertidal zone. The transplants were monitored for six months. Recruits experienced high loss rates, approximately 47 % of zygotes within 7 days in culture and 75 % of outplanted seedlings within 10 days in the field. The latter might result from natural self-thinning (competition), but our observations suggested that it was also largely due to the weak attachment of recruits to the tiles resulting from cultivation under calm conditions. Six months after the transplants, the surviving individuals reached the size of wild adult algae (average length of 13.5 cm), and some even became reproductive. Globally, survival rates, growth, physiological condition and fertility in this restoration pilot suggest that ex-situ recruitment and outplanting of G. nodicaulis is a promising approach to recover forests in Atlantic Morocco.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140839952","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

Saccharina sporophytes settling on kelp cultivation rafts come from wild intertidal populations and not from the farmed cultivars 在海带养殖筏上定居的蚕豆孢子体来自潮间带野生种群，而不是养殖的栽培品种

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-04-29 DOI: 10.1515/bot-2023-0096

Xiaodong Li, Yanjun Wang, Luyang Xiao, Ershuai Huang, Xiao Liu, Tifeng Shan, Shaojun Pang

引用次数: 0

Phymatolithopsis acervata comb. nov., and P. roseola sp. nov. (Hapalidiales, Rhodophyta) from South Africa with a comment on infraordinal classification 来自南非的 Phymatolithopsis acervata comb.

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-04-29 DOI: 10.1515/bot-2023-0109

Gavin W. Maneveldt, So Young Jeong, Jeffery R. Hughey, Paul W. Gabrielson

{"title":"Phymatolithopsis acervata comb. nov., and P. roseola sp. nov. (Hapalidiales, Rhodophyta) from South Africa with a comment on infraordinal classification","authors":"Gavin W. Maneveldt, So Young Jeong, Jeffery R. Hughey, Paul W. Gabrielson","doi":"10.1515/bot-2023-0109","DOIUrl":"https://doi.org/10.1515/bot-2023-0109","url":null,"abstract":"Phymatolithon acervatum is an encrusting, non-geniculate coralline alga from South Africa. While morpho-anatomical details of the species are well documented, no genetic analyses have been performed on P. acervatum. Here, we analyzed rbcL and psbA gene sequences, and they showed that two species were passing under the name Phymatolithon acervatum in South Africa. A partial rbcL sequence from the lectotype of Lithothamnion acervatum, basionym of P. acervatum, showed to which species the specific epithet applies, and furthermore that both species belong in Phymatolithopsis. We transfer Phymatolithon acervatum to Phymatolithopsis, as Phymatolithopsis acervata comb. nov., and propose Phymatolithopsis roseola sp. nov. These species overlap in morpho-anatomy, habitat and distribution and can only be distinguished based on DNA sequences. Previous misinterpretations of conceptacle development are corrected for species of Phymatolithopsis. The main character used to define the family Mesophyllumaceae is shown to have arisen several times in independent lineages in the order Hapalidiales. At present, only one family, Hapalidiaceae, thus merits recognition in the Hapalidiales.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140839949","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

Chemical ecology of plankton parasitism in algae 浮游生物寄生于藻类的化学生态学

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-04-29 DOI: 10.1515/bot-2023-0062

Marine Vallet

{"title":"Chemical ecology of plankton parasitism in algae","authors":"Marine Vallet","doi":"10.1515/bot-2023-0062","DOIUrl":"https://doi.org/10.1515/bot-2023-0062","url":null,"abstract":"Plankton parasites such as viruses, bacteria, fungi, and unicellular eukaryotes are associated symbionts colonizing algal groups in aquatic ecosystems. They occur within a network of microbe–microbe interactions in which they parasitize phytoplankton and seaweeds, i.e., primary producers generating organic carbon and forming the basis of marine food webs. These parasites use algae as a source of nutrients and reproduce at the expense of their host, causing infectious symptoms leading to disease and death. Plankton parasites can reduce the algal populations, and the infection of one specific species may, in turn, favor the development of another, influencing the seasonal succession of algal blooms in oceans, seas, and lakes. Many parasites have free-living stages that zooplankton graze upon, representing a significant trophic link in food webs. The biology and life cycle of plankton parasites are well investigated in marine and freshwater algal hosts. Still, the chemical signaling mediating these microbial interactions and the effect of co-occurring symbionts remain underexplored. This review focuses on the diversity of plankton parasites infecting algae, with a particular emphasis on unicellular eukaryotes. The ecological role of plankton parasites, the mechanisms regulating cellular infection and host resistance, and the interplay of alga-parasite interactions with coexisting microorganisms are discussed.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140839773","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

The African seaforest: a review 非洲海林：回顾

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-04-29 DOI: 10.1515/bot-2023-0060

Zara S. Prew, Maggie M. Reddy, Akshata Mehta, David C. Dyer, Albertus J. Smit

{"title":"The African seaforest: a review","authors":"Zara S. Prew, Maggie M. Reddy, Akshata Mehta, David C. Dyer, Albertus J. Smit","doi":"10.1515/bot-2023-0060","DOIUrl":"https://doi.org/10.1515/bot-2023-0060","url":null,"abstract":"Kelp forests dominate the western and southwestern coastlines of southern Africa. This expansive ecosystem spreads over two very different ecoregions that are of particular interest to researchers due to the complexities of their physical environment. The mid-to-late 1900s saw a proliferation in pioneering research on southern African kelp forests. Since this period (1970–1989), researchers have published comparatively few seminal studies concerning kelp forest ecology and biological functioning. In light of this deficit, this review synthesised pre-existing research on southern African kelp forests, and highlighted key gaps in the research landscape to spark interest and facilitate new studies. Among several others, key research gaps uncovered by this review include kelp carbon sequestration potential and possible contributions to the blue bioeconomy; deeper exploration into the biological functioning and ecological roles of Macrocysis pyrifera and Ecklonia radiata populations in southern Africa; and the impacts of a changing physical environment on these kelp forests. In light of our rapidly changing climate, filling these gaps will be essential in informing conversations around coastal and marine management decisions and policy.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140839788","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 new species of marine algae from the Mexican Atlantic based on morphology and molecular data: Gelidium rodrigueziae sp. nov. (Gelidiaceae, Rhodophyta) 基于形态学和分子数据的墨西哥大西洋海藻新种：Gelidium rodrigueziae sp.

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-04-29 DOI: 10.1515/bot-2023-0046

Nataly Quiroz-González, Maria Edith Ponce-Márquez, Luis Gabriel Aguilar-Estrada, Ivette Ruiz-Boijseauneau

{"title":"A new species of marine algae from the Mexican Atlantic based on morphology and molecular data: Gelidium rodrigueziae sp. nov. (Gelidiaceae, Rhodophyta)","authors":"Nataly Quiroz-González, Maria Edith Ponce-Márquez, Luis Gabriel Aguilar-Estrada, Ivette Ruiz-Boijseauneau","doi":"10.1515/bot-2023-0046","DOIUrl":"https://doi.org/10.1515/bot-2023-0046","url":null,"abstract":"The algae of the genus Gelidium can be found as frequent and abundant inhabitants in the rocky intertidal zone of the Mexican Atlantic. Six species of this genus have been reported in this region, but only Gelidium americanum has been confirmed with morphological and molecular tools, despite how important both tools have proven to be for the group. This research aimed to evaluate the Mexican specimens previously identified as Gelidium through morphological and molecular approaches, using rbcL and COI-5P markers. This study examined 20 specimens found living attached to the shell of a gastropod Stramonita rustica in the mid-high intertidal zone of the Mexican Atlantic and ten specimens found living on rocks. Phylogenetic analyses resolved these specimens to be an independent species closely related to G. gonzalezii, G. yangmeikengense, and G. indonesianum. Genetic distances and morphological information confirmed this. Gelidium rodrigueziae sp. nov. is described as a new species. It is distinguished from its related species by having a simpler branching pattern, a smaller number and size of medullary cells, and the smaller quantity and distribution of restricted internal rhizoid filaments around the medulla.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140839969","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

Embracing diversity: enhancing the management of South Africa’s kelp forests in an era of change 拥抱多样性：在变革时代加强南非海藻林的管理

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-04-18 DOI: 10.1515/bot-2023-0058

Akshata Mehta, Rachel Wynberg, Albertus J. Smit

引用次数: 0

The effect of irradiance versus light dose on the antioxidant activity of two strains of Ulva lacinulata 辐照度与光剂量对两种莼菜抗氧化活性的影响

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-03-11 DOI: 10.1515/bot-2023-0064

Isabel Cardoso, Anneke Meiβner, Laurie C. Hofmann

{"title":"The effect of irradiance versus light dose on the antioxidant activity of two strains of Ulva lacinulata","authors":"Isabel Cardoso, Anneke Meiβner, Laurie C. Hofmann","doi":"10.1515/bot-2023-0064","DOIUrl":"https://doi.org/10.1515/bot-2023-0064","url":null,"abstract":"The genus Ulva, described as a good source of antioxidants known for its antibacterial properties and associated with the capacity to adapt to different environments and high growth rates, has justified the increasing interest in its large-scale production. While extensive research has been done on optimizing the extraction of Ulva’s bioactive compounds, few studies were conducted on increasing or optimizing antioxidant activity (AA) of Ulva spp. during cultivation. Our study aimed to investigate an optimization method of Ulva lacinulata by testing the impact of light dose and irradiance on its AA. Two geographically different strains (NE-Atlantic and Mediterranean) were observed for 5 days under two irradiances (70 or 185 µmol photons m−2 s−1) with the same light dose (4 mol photons m−2 d−1). Samples were collected at different times (0, 3, 24, 48 and 120 h) to evaluate their antioxidant activity (with 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) radical decolorization assay) and photosynthetic performance (with Pulse Amplitude Modulated fluorometer). A strain-dependent response was observed in the NE-Atlantic strain which had significantly higher AA after 5 days (89 %) under the photosynthetic saturating irradiance, while the Mediterranean strain was not impacted, suggesting that light dose may significantly affect AA in certain Ulva spp.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140105562","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

Genetic analysis of Ulva (Ulvaceae, Chlorophyta) type specimens resolves northeast Pacific blade-forming species 莼菜（莼菜科，叶绿体）模式标本的遗传分析解析了东北太平洋的叶片形成物种

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-03-08 DOI: 10.1515/bot-2023-0072

Jeffery R. Hughey, Kathy Ann Miller, Paul W. Gabrielson

{"title":"Genetic analysis of Ulva (Ulvaceae, Chlorophyta) type specimens resolves northeast Pacific blade-forming species","authors":"Jeffery R. Hughey, Kathy Ann Miller, Paul W. Gabrielson","doi":"10.1515/bot-2023-0072","DOIUrl":"https://doi.org/10.1515/bot-2023-0072","url":null,"abstract":"Misapplication of Ulva epithets in GenBank has led to confusion in the scientific literature and community. To solve some of the problems, targeted DNA sequencing of plastid encoded rbcL gene amplicons or high-throughput sequencing was performed on all blade-forming Ulva type specimens from the northeast Pacific. Recently collected specimens from at or near type localities were also analyzed for some taxa. Based on these genetic analyses, we confirmed currently recognized species: U. californica, with U. angusta and U. scagelii as heterotypic synonyms, U. stenophylla, U. taeniata, and U. tanneri. Ulva dactylifera, currently considered a synonym of U. taeniata based on morpho-anatomy, is recognized as a distinct species, as is U. expansa whose type specimen was sequenced in 2018. All but two of the ITS, rbcL and tufA sequences in GenBank that were labeled U. californica were correctly named, in contrast to U. taeniata, for which only one of 14 sequences was correctly labeled. These results show that DNA sequencing of Ulva type specimens is essential for the correct application of names.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140072076","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

Bioactivity and chemical screening of endophytic fungi associated with the seaweed Ulva sp. of the Bay of Bengal, Bangladesh 与孟加拉国孟加拉湾海藻莼菜相关的内生真菌的生物活性和化学筛选

IF 2.2 4区生物学

Botanica Marina Pub Date : 2024-03-06 DOI: 10.1515/bot-2023-0040

Sadia Noor, Mst. Nadira Begum, Satyajit Roy Rony, Mohammad Zashim Uddin, Md. Hossain Sohrab, Md. Abdul Mazid

{"title":"Bioactivity and chemical screening of endophytic fungi associated with the seaweed Ulva sp. of the Bay of Bengal, Bangladesh","authors":"Sadia Noor, Mst. Nadira Begum, Satyajit Roy Rony, Mohammad Zashim Uddin, Md. Hossain Sohrab, Md. Abdul Mazid","doi":"10.1515/bot-2023-0040","DOIUrl":"https://doi.org/10.1515/bot-2023-0040","url":null,"abstract":"Several studies have shown that endophytic fungal metabolites possess vital biological activities; nevertheless, there is a lack of knowledge regarding the medicinally important marine endophytic fungi associated with the seaweeds mainly found in the Bay of Bengal, Bangladesh. In this study, six endophytic fungi, belonging to five genera and four classes, were isolated from the well-known chlorophyte, Ulva sp. and were most closely related to Chaetomium globosum, Nigrospora magnoliae, Curvularia sp., Curvularia moringae, Aspergillus terreus and Collariella sp. This is the first report of these fungi as endophytes associated with Ulva sp. from the Bay of Bengal, Bangladesh. A preliminary biological evaluation of the ethyl acetate extract of each endophytic fungal crude extract was the prime objective of this research, e.g., antimicrobial assay, 2,2-diphenyl-1-picrylhydrazyl free radical scavenging activity and brine shrimp lethality bioassay. Evaluation of test results revealed that each fungal crude extract possessed one or more relevant biological activities. Preliminary chemical screening using TLC and NMR spectroscopic analysis revealed the presence of several secondary metabolites in the crude fungal extracts. These findings suggest that the marine endophytic fungus may be a valuable source for investigating potentially bioactive chemicals or leads for novel drug candidates.","PeriodicalId":9191,"journal":{"name":"Botanica Marina","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140055622","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