Nordic Journal of Botany最新文献_第7页

Two decades of dune slack restoration in North Wales: diversity, community and habitat specialists 北威尔士沙丘松弛恢复二十年：多样性、群落和生境专家

IF 0.9 4区生物学

Nordic Journal of Botany Pub Date : 2024-03-08 DOI: 10.1111/njb.04365

Nicola Johansen, Michelle Davis, Paul A. Ashton

{"title":"Two decades of dune slack restoration in North Wales: diversity, community and habitat specialists","authors":"Nicola Johansen, Michelle Davis, Paul A. Ashton","doi":"10.1111/njb.04365","DOIUrl":"https://doi.org/10.1111/njb.04365","url":null,"abstract":"Humid dunes slacks are a highly threatened habitat, listed as vulnerable in the EU habitat red list. Accelerated successional processes in dune systems have resulted in the loss and degradation of ideal conditions for specialist dune slack species, hence the need for conservation management. We investigated the restoration of a dune slack in North Wales, UK, where vegetation and soil removal to 10 cm depth was undertaken to reinstate nutrient-poor, open and damp conditions. We assessed the outcomes of the management for dune slack communities over the 18 years since restoration. We also assessed the differences between restored and unrestored areas of dune slacks. The dunes were restored in the winter of 2004/2005, after which we conducted vegetation surveys in fixed quadrats for most years in the restored and adjacent, un-restored dune slacks. Species diversity and plant community composition changes over time were assessed using Shannon's index, multivariate analysis and indicator species analysis. Comparisons between the restored and unrestored areas of the dune slacks were also made. Ellenberg indicator values (EIVs) were examined to identify potential environmental drivers of post management successional changes. After 18 years the restored dune slacks developed a species-rich and diverse community. compared to the unrestored slacks. The establishment of species occurred rapidly in the first three years, followed by continued but slower increases in species richness and diversity. This is due to the addition of new species without losses of established species. EIVs show no significant difference over time suggesting the restored areas are still at an early stage of succession. Distinct stages of community change since restoration are characterised by different indicator species. Plants are likely to be largely recruited from an existing seed bank. Restoration by turf removal may be suitable for other low nutrient, species rich habitats dependent upon fluctuating groundwater levels.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140075009","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

Myriospora molybdina comb. nov. and the identity of Acarospora hysgina Myriospora molybdina comb.

IF 0.9 4区生物学

Nordic Journal of Botany Pub Date : 2024-03-05 DOI: 10.1111/njb.04269

Martin Westberg, Mats Wedin, Måns Svensson

引用次数: 0

Untangling the taxonomy and geographic distribution of Quararibea floribunda (Malvaceae: Malvoideae) 解开Quararibea floribunda（锦葵科：锦葵属）的分类和地理分布问题

IF 0.9 4区生物学

Nordic Journal of Botany Pub Date : 2024-03-05 DOI: 10.1111/njb.04299

Carlos Daniel M. Ferreira, José Fernando A. Baumgratz, Massimo G. Bovini

{"title":"Untangling the taxonomy and geographic distribution of Quararibea floribunda (Malvaceae: Malvoideae)","authors":"Carlos Daniel M. Ferreira, José Fernando A. Baumgratz, Massimo G. Bovini","doi":"10.1111/njb.04299","DOIUrl":"https://doi.org/10.1111/njb.04299","url":null,"abstract":"Quararibea floribunda, a species endemic to Brazil, is poorly studied taxonomically, and little is known about its ecology and conservation status. Since its publication in 1842, only a few studies have reported on its morphological circumscription, thus remaining as a complex in the taxonomy of Quararibea. In addition, little is known about its geographic distribution, which, according to most authors, is restricted to the Cerrado Biome, characterized mainly by its dry forests. Therefore, we herein review and clarify the morphological circumscription and distribution of Q. floribunda in different vegetation types, designate a lectotype, and recognize its conservation status as vulnerable (VU). The present study is based on analysis of protologues and further pertinent literature. Several herbaria were consulted, both in person and online. Fieldwork was done between 2017 and 2020 in different locations of midwestern and southeastern Brazil, mainly in dry forests of the Cerrado Biome. We confirm that Q. floribunda also occurs in the Atlantic Forest Biome and that it is not exclusive to the Cerrado Biome, as previously thought. All known populations in this biome inhabit humid habitats, and as such, they are closer to the vegetation of the Atlantic Forest Biome than the typical Cerrado dry forests. In addition to assessing the conservation status of Q. floribunda, we evaluate its nomenclatural history, leading to the designation of a lectotype, finally highlighting vegetative and floral diagnostic characters. A distribution map is provided, as well as a morphological comparative analysis between species with foliar domatia in extra-Amazonian Brazil.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140047053","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

Syzygium crystalliferum (Myrtaceae), a new tree species from Carranglan, Nueva Ecija, Philippines and lectotypification of Eugenia purpuriflora Elmer 菲律宾新怡诗夏 Carranglan 的新树种 Syzygium crystalliferum（桃金娘科）和 Eugenia purpuriflora Elmer 的训诂分型

IF 0.9 4区生物学

Nordic Journal of Botany Pub Date : 2024-02-27 DOI: 10.1111/njb.04227

Jayson A. Mansibang, Leonardo C. Udasco, Abigail L. Garrino, Jamie Ann M. Aumentado, Mark Gregory Q. Rule, John Patykowski

引用次数: 0

Phylogenetics of Cruckshanksia and Oreopolus (Rubiaceae) based on nuclear and plastid DNA sequences 基于核DNA和质粒DNA序列的Cruckshanksia和Oreopolus（茜草科）系统进化论

IF 0.9 4区生物学

Nordic Journal of Botany Pub Date : 2024-02-27 DOI: 10.1111/njb.04151

Paola Jara-Arancio, Claudia Scognamillo, Paula Vidal, Mary T. Kalin-Arroyo

{"title":"Phylogenetics of Cruckshanksia and Oreopolus (Rubiaceae) based on nuclear and plastid DNA sequences","authors":"Paola Jara-Arancio, Claudia Scognamillo, Paula Vidal, Mary T. Kalin-Arroyo","doi":"10.1111/njb.04151","DOIUrl":"https://doi.org/10.1111/njb.04151","url":null,"abstract":"Cruckshanksia Hook. & Arn. and Oreopolus Schltdl. Rubiaceae (Rubioideae – Coussareeae), endemic genera of Chile and Andean Argentina, have historically been highly taxonomically unstable. Molecular analyses have confirmed Oreopolus as the sister group of Cruckshanksia; however, the relationships among its species are still not resolved because previous studies have not considered all species of the genus and the published topologies have many unsupported nodes. For this reason, we carried out a phylogenetic study with all the species currently recognized by recent revisions, using two nuclear DNA regions and five plastid regions, to elucidate the relationships between species. In addition, the evolutionary history of the group was estimated based on divergence times, and a character reconstruction was performed. The results corroborate that Oreopolus is the sister group of Cruckshanksia. Cruckshanksia is monophyletic and composed of two principal clades. Clade I is composed of Subclade I (C. pumila and C. verticillata) associated with C. montiana; Clade II is composed of Subclade II (C. palmae and C. macrantha) and Subclade III (C. lithiophila and C. hymenodon). With 81% probability the common ancestor of the genus Cruckshanksia had petaloid appendices associated with two independent lines of evolution. The probability that the common ancestor of the Oreopolus‒Cruckshanksia clade had equal calyx lobes is 50%.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139977891","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

Novel finding of Paulownia fortunei endophytic rhizobia in China 中国泡桐内生根瘤菌的新发现

IF 0.9 4区生物学

Nordic Journal of Botany Pub Date : 2024-02-27 DOI: 10.1111/njb.04304

Han Ren, Wei Ding, Chengqun Lv, Yufan Luo, Zhenfei Chen, Junfan Chen, Xu Sun

{"title":"Novel finding of Paulownia fortunei endophytic rhizobia in China","authors":"Han Ren, Wei Ding, Chengqun Lv, Yufan Luo, Zhenfei Chen, Junfan Chen, Xu Sun","doi":"10.1111/njb.04304","DOIUrl":"https://doi.org/10.1111/njb.04304","url":null,"abstract":"Previous research has mainly focused on breeding, timber supply, and physiological–biochemical characteristics of Paulownia fortunei. However, there has been limited attention given to its endophytic rhizobia and its potential benefits for plant growth due to a lack of knowledge about the existence of root nodules. In this study, we isolated nine bacterial strains from the root nodules after occasionally discovering the nodular-like structure in uncultivated three year P. fortunei roots and then sequenced the 16S rDNA and nifA sequencing to conduct the bacterial strain identifications. We then determined the carbon use capability and nitrogenase activity of the bacterial strains. The result of 16S rDNA sequencing indicated that the endophytic rhizobia belongs to the genus Agrobacterium, Rhizobium, Herbaspirillum and Burkholderia. The results of nifA sequencing indicated that the nifA gene was sequenced in strain PG-3, PG-5, PG-6, PG-7, PG-8 and PG-9 rather than in strain PG-1, PG-2 and PG-4. Besides, the nitrogenase activity of strain PG-9 was significantly higher than other bacterial strains. Redundancy analysis (RDA) results indicated that fructose, glucose, and sucrose were significantly related to the plant height, diameter, and biomass rather than other carbon sources and nitrogenase activity. Our research revealed that the majority of bacterial strains isolated from P. fortunei exhibited a broad carbon utilization pathway and have the potential to promote plant growth after re-Inoculation. This study aims to investigate the phylogeny of endophytic rhizobia in P. fortunei, and expand the range of non-legume hosts studied for future research on biological N-fixation.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139981710","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

Fritillaria yalcinii (Liliaceae), a new species from southeastern Turkey Fritillaria yalcinii（百合科），来自土耳其东南部的一个新种

IF 0.9 4区生物学

Nordic Journal of Botany Pub Date : 2024-02-20 DOI: 10.1111/njb.04220

Mehmet Maruf Balos, Cahit Çeçen, Mehtap Tekşen, Hasan Yıldırım, Veysel Sonay

引用次数: 0

Bonomyces pakistanensis (Pseudoclitocybaceae, Agaricales), a new species from Pakistan Bonomyces pakistanensis（Pseudoclitocybaceae，Agaricales），巴基斯坦的一个新种

IF 0.9 4区生物学

Nordic Journal of Botany Pub Date : 2024-02-15 DOI: 10.1111/njb.04268

Urooj Ashraf, N. Afshan, Abdul Nasir Khalid

引用次数: 0

Bonomyces pakistanensis (Pseudoclitocybaceae, Agaricales), a new species from Pakistan Bonomyces pakistanensis（Pseudoclitocybaceae，Agaricales），巴基斯坦的一个新种