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1A critical review of mineral–microbe interaction and co-evolution:mechanisms and applications显示文摘Mineral–microbe interactions play important roles in environmental change,biogeochemical cycling of elements and formation of ore deposits.Minerals provide both beneficial(physical and chemical protection,nutrients,and energy)and detrimental(toxic substances and oxidative pressure)effects to microbes,resulting in mineral-specific microbial colonization.Microbes impact dissolution,transformation and precipitation of minerals through their activity,resulting in either genetically controlled or metabolism-induced biomineralization.Through these interactions,minerals and microbes co-evolve through Earth history.Mineral–microbe interactions typically occur at microscopic scale but the effect is often manifested at global scale.Despite advances achieved through decades of research,major questions remain.Four areas are identified for future research:integrating mineral and microbial ecology,establishing mineral biosignatures,linking laboratory mechanistic investigation to field observation,and manipulating mineral–microbe interactions for the benefit of humankind.Hailiang Dong Liuqin Huang Linduo Zhao Qiang Zeng Xiaolei Liu Yizhi Sheng Liang Shi Geng Wu Hongchen Jiang Fangru Li Li Zhang Dongyi Guo Gaoyuan Li Weiguo Hou Hongyu Chen 2022National Science Review2022,9,10:2
2Anti- ultraviolet and physical properties of woolen fabrics cured with citric acid and TiOJchitosan 显示文摘HSIEH Sunghuang ZHANG Fangru L1 Huisi 2006Journal of Applied Polymer Science2006,,100:1
3Renal Metanephric Adenoma With Previously Unreported Cytogenetic Abnormalities: Case Report and Review of the Literature显示文摘Dinesh Rakheja Fangru Lian Gail E. Tomlinson David H. Ewalt Roger A. Schultz Linda R. Margraf 2005Pediatric and Developmental Pathology2005,,2:1
4Phylogenetic, evolutionary, and biogeographic origin of the genus Sheathia (Batrachospermales, Rhodophyta)显示文摘The genus Sheathia consists of over 20 species primarily distributed in Asia,Europe,Oceania,North America,and Africa.However,the origin and evolution of this genus remain unclear.Two gametophyte stage specimens(SAS18052 and SAS18523)and two“Chantransia”stage specimens(YTS19161 and YTS19017)were collected from Shanxi and Henan Provinces in China,respectively.Based on morphological data,isolates YTS19161 and YTS19017 were similar to Audouinella pygmaea,whereas the morphological characteristics of SAS18052 and SAS18523 were in good agreement with the circumscription description of S.longipedicellata.Molecular sequences of rbc L,COI-5P,and psb A were used to investigate the phylogenetic,evolutionary,and biogeographic origin of the genus Sheathia.The three molecular markers supported that the two gametophyte stage specimens belong to S.longipedicellata,while the isolates YTS19161 and YTS19017 were the“Chantransia”of S.longipedicellata.Ancestral area reconstruction and divergence time estimation speculated that Sheathia originated in North America,a portion of the Pangaea at approximately 328.07-184.73 million years ago(Ma).Our relaxed molecular clock analysis suggests that the Florideophyceae diverged approximately 741.04(894.36-631.70)Ma.The major divergences in this class involved the emergence of Nemaliophycidae[ca.662.01(779.83-580.51)Ma],and the split of orders Batrachospermales and Thoreales[ca.456.10(552.80-367.88)Ma].Jinfen HAN Fangru NAN Jia FENG Junping LÜ Qi LIU Xudong LIU Shulian XIE 2022Journal of Oceanology and Limnology2022,40,2:1
5Tissue expression,association analysis between three novel SNPs of the RXRαgene and growth traits in Chinese indigenous cattle显示文摘Retinoid X receptor(RXR) α is a member of the nuclear hormone receptor superfamily that mediates the biological effects on several hormones,vitamins,and regulates lipid,glucose and energy metabolism.In this study,the tissue expression profiles of the bovine RXRαgene and association analysis of single nucleotide polymorphisms(SNPs) with growth traits were carried out in 413 Chinese native cattle.The expression profile was analysed in ten Jiaxian cattle tissues by real-time PCR,and the results showed that RXRαgene was abundantly expressed in adipose tissue and spleen,moderately expressed in heart,liver,lung,kidney,muscle and testis.Meanwhile,three SNPs(T27919A,T28139C and G28142A) and five haplotypes were identified.Haplotype with TTG was dominant with frequency of 69.1%.Chi-square test showed all populations were in Hardy-Weinberg equilibrium(P>0.05) at the three sites except Jiaxian cattle at G28142A site and Qinchuan cattle at T27919A site.Statistical analysis of combined sites showed that the individuals with TTGA genotype had significantly higher heart girth than those with TAGG genotype(P<0.05) and the animals with AAGA genotype had higher body weight than those with TAGG genotype(P<0.05) in T27919A-G28142A site.Heart girth,abdominal circumference and body weight of individuals with TCAG genotype were exceedingly higher than those with TTGG(P<0.01),TTGA and TCGG(P<0.05) in T28139C-G28142A site.For T27919A-T28139C site,the individuals of TCTA and TCTT genotype had significantly higher heart girth and lower height at hip cross than those with TTTA(P<0.05),and the body weight of TCAA and TCTT genotype individuals was higher than those with TTTA(P<0.05).In conclusion,these results provided evidence that the polymorphisms of RXRαgene were associated with growth traits and might apply to Chinese indigenous yellow cattle breeding program as a possible candidate for marker-assisted selection(MAS).MA Yun GAO HanTing LIN Feng CHEN NingBo XU YongJie JIANG JinHang LI Fen LU FangRu ZHAO Man SHI KuiLin CHENG Ni LI JunYa 2013Chinese Science Bulletin2013,58,18:1
6Genistein-induced G2-m arrest, P21WAF1 upregulation, and apoptosis in a non-small-cell lung cancer cell line显示文摘Fangru Lian Mahbubur Bhuiyan Yi-Wei Li Nathan Wall Michael Kraut Fazlul H. Sarkar 1998Nutrition and Cancer1998,,3:1
7Transcriptome profile of Dunaliella salina in Yuncheng Salt Lake reveals salt-stress-related genes under diff erent salinity stresses显示文摘Salt stress is an abiotic stress to plants in especially saline lakes.Dunaliella,a halophilic microalga distributed throughout salt lakes and seas,can respond to different salinity stresses by regulating the expression of some genes.However,these genes and their function and biological processes involved remain unclear.Profi ling these salt-stress-related genes in a high-salt-tolerant Dunaliella species will help clarify the salt tolerance machinery of Dunaliella.Three D.salina_YC salt-stress groups were tested under low(0.51 mol/L),moderate(1.03 mol/L),and high(3.42 mol/L)NaCl concentrations and one control group under very low(0.05 mol/L)NaCl concentration and 3 transcriptome results that were deep sequenced and de novo assembled were obtained per group.Twelve high-quality RNA-seq libraries with 46585 upregulated and 47805 downregulated unigenes were found.Relative to the control,188 common differentially expressed genes(DEGs)were screened and divided into four clusters in expression pattern.Fifteen of them annotated in the significant enriched Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)were validated via qPCR.Their qPCR-based relative expression patterns were similar to their RNA-seq-based patterns.Two significant DEGs,the geranylgeranyl diphosphate synthase coding gene(1876-bp cDNA)and diacylglycerol O-acyltransferase coding gene(2968-bp cDNA),were cloned and analyzed in silico.The total lipid content,superoxide dismutase specific activity,and betacarotene content of D.salina_YC increased gradually with increasing salinity.In addition,the expression of 11 validated genes involved in fatty acid biosynthesis/degradation,active oxygen or carotenoid metabolisms showed significant changes.In addition,algal photochemical efficiency was diminished with increasing salinity,as well as the expression of 4 photosynthesis-related genes.These results could help clarify the molecular mechanisms underlying D.salina responses to the Yuncheng Salt Lake environment and lay a foundation for further utilization of this algal resource.Fan GAO Fangru NAN Jia FENG Junping LÜ Qi LIU Xudong LIU Shulian XIE 2021Journal of Oceanology and Limnology2021,39,6:1
8The expressions of brain-derived neurotrophic factor and nerve growth factor in purified rat choroid plexus epithelial cells in vitro显示文摘Objective: To detect the expressions of brain-derived neurotrophic factor(BDNF) and nerve growth factor(NGF) in purified rat choroid plexus epithelial cells in vitro. Methods: Primary and passage choroid plexus epithelial cells were obtained from newborn, one-day Sprague-Dawley rats. The expressions of BDNF and NGF were measured by qRT-PCR and Western blottingting. The secretions of BDNF and NGF were detected by ELISA. Cell supernatants of primary cells, purified cells and passage 1 cells were harvested. Results: The expression of BDNF in the purified cells was significantly lower than that in the primary cells(P<0.05), and it in the primary cells and the purified cells was significantly higher than that in the passage 1 cells(P<0.05). The expression of NGF was significantly higher in the purified cells than in the primary cells and the passage 1 cells(P<0.05). It in the passage 1 cells was significantly higher than that in the primary cells(P<0.05). Conclusion: The time of CPECs transplantation for central nervous system diseases should be selected based on their secretory function and features,which could lead to better and more effective treatment.CHEN Bo MIAO Xingyu SHI Wei PU Jingnan LIU Chongxiao GUO Zhenyu WANG Fangru 2013Journal of Medical Colleges of PLA(China)2013,28,5:1
9Affinities offreshwater“Chantransia”stage algae(Rhodophyta)from China based on molecular and morphological analyses显示文摘Twelve putative'Chantransia'isolates were collected from six locations across Hubei,Shanxi,Guizhou,and Henan Provinces in China.Their morphological characters were evaluated via the Ward’s method of hierarchical cluster analysis in SPSS software to classify phylogenetic relationships among the isolates.The morphological data revealed that isolate HN31(called group'MALL')was distinct from the other specimens being macroscopic with large vegetative cells and monosporangia(>20μm in diameter).The 11 other isolates were grouped into three clusters,corresponding to the species Audouinella tenella,A.hermannii,and A.pygmaea.The morphological'Chantransia'stage of the species,reportedly belonging to the orders Batrachospermales,Thoreales,and the phylogenetically distant genus Audouinella,are very similar,resulting in the di fficulty to distinguish them based just on morphology.Therefore,molecular analysis of rbc L,UPA,and COI-5 P was conducted to infer the phylogenetic position of all isolates in this study.All'A.tenella'and'A.hermannii'sequences belong to order Batrachospermales,while the isolate HN31 was the'Chantransia'of Thorea hispida.The six other specimens varied morphologically,but they were within the circumscription of'A.pygmaea'.All three molecular markers show that all'pygmaea'isolates also represent the'Chantransia'of T.hispida.Furthermore,results from this investigation proposed a new species—Sheathia qinyuanensis,corresponding to the isolates QY1 and QY2.Jinfen HAN Fangru NAN Jia FENG Junping LV Qi LIU Xudong LIU Shulian XIE 2021Journal of Oceanology and Limnology2021,39,3:1
10Identification of novel salt stress-responsive microRNAs through sequencing and bioinformatic analysis in a unique halophilic Dunaliella salina strain显示文摘Dunaliella salina is a classic halophilic alga.However,its molecular mechanisms in response to high salinity at the post transcriptional level remain unknown.A unique halophilic alga strain,DS-CN1,was screened from four D.salina strains via cell biological,physiological,and biochemical methods.High-throughput sequencing of small RNAs(sRNAs)of DS-CN1 in culture medium containing 3.42-mol/L NaCl(SS group)or 0.05-mol/L NaCl(CO group)was performed on the BGISEQ-500 platform.The annotation and sequences of D.salina sRNAs were profiled.Altogether,44 novel salt stress-responsive microRNAs(miRNAs)with a relatively high C content,with the majority of them being 24 nt in length,were identified and characterized in DS-CN1.Twenty-one differentially expressed miRNAs(DEMs)in SS and CO were screened via bioinformatic analysis.A total of 319 putative salt stress-related genes targeted(104 overlapping genes)by novel miRNAs in this alga were screened based on our previous transcriptome sequencing research.Furthermore,these target genes were classified and enriched by GO and KEGG pathway analysis.Moreover,5 novel DEMs(dsa-mir3,dsa-mir16,dsa-mir17,and dsa-mir26 were significantly upregulated,and dsa-mir40 was significantly downregulated)and their corresponding 10 target genes involved in the 6 significantly enriched metabolic pathways were verified by quantitative real-time PCR.Next,their regulatory relationships were comprehensively analyzed.Lastly,a unique salt stress response metabolic network was constructed based on the novel DEM-target gene pairs.Taken together,our results suggest that 44 novel salt stress-responsive microRNAs were identified,and 4 of them might play important roles in D.salina upon salinity stress and contribute to clarify its distinctive halophilic feature.Our study will shed light on the regulatory mechanisms of salt stress responses.Fan GAO Fangru NAN Jia FENG Junping LÜ Qi LIU Xudong LIU Shulian XIE 2023Journal of Oceanology and Limnology2023,41,4:0
11Phylogeny and Geographical Derivation of Genus Hildenbrandia Based on Morphological and Molecular Evidence显示文摘The marine and freshwater Hildenbrandia samples were collected from diverse locations of China and Japan,and mor-phological characterization and molecular phylogenetic analysis were conducted on these samples.Morphological measurements of freshwater specimens were consistent with the results of H.jigongshanensis,whereas cell dimensions of marine specimens were slightly larger than those of widely distributed H.rubra and H.crouanii.Phylogenetic trees based on rbcL,psbA and UPA sequences were consistent.Freshwater specimens collected in this study formed an independent clade with H.jigongshanensis supported by high values.Species attribution was confirmed further by the similar ITS2 secondary structures among the samples of H.jigongshan-ensis.It was found that the intraspecific divergence of rbcL gene in H.jigongshanensis was smaller than other two freshwater species H.rivularis and H.angolensis.Phylogenetic trees showed that marine specimens in this study grouped together with H.rubra samples of North America,and were different with the H.rubra samples of Europe.Combining the comparison results of CBC numbers in ITS2 secondary structure,we propose the marine samples collected in this study to be a new species Hildenbrandia qingdaoensis sp.nov.The separation of the marine and freshwater specimens was supported by the rbcL,UPA and psbA phylogeny as well as ITS2 se-condary structure inference.Biogeographical reconstruction showed the ancestor of freshwater Hildenbrandia might derive from South America and dispersed from North America to Europe and then to Asian countries,which needs to be verified further with more sam-ples and molecular evidences from South America.NAN Fangru ZHAO Huiying LI Juan LIU Xudong LIU Qi LV Junping FENG Jia XIE Shulian 2023Journal of Ocean University of China2023,22,6:0
12Virescentia guangxiensis(Batrachospermales,Rhodophyta):a new freshwater red algal species from South China显示文摘Virescentia guangxiensis,a new species of Virescentia from Guangxi,South China,is described and illustrated based on morphological observations and phylogenetic analysis.This species was distinguished morphologically from other species by the presence of special expansion cells with a variable shape,obovoid,spherical,pear-shaped,located in the penultimate cells of primary or secondary fascicles,rarely terminal on primary fascicles,as well as by small whorls(250-350-μm wide)and short primary fascicles(5-7 cell stories).Phylogenetic analysis of molecular data from the rbc L and COI-5P loci supported the separation of the proposed new species from other species in the genus Virescentia.This is the first species of the order Batrachospermales reported in Guangxi and the second species of the genus Virescentia reported in China.This study expands the known species diversity and geographical distribution of freshwater Rhodophyta in China.Kunpeng FANG Fangru NAN Jia FENG Junping LÜ Qi LIU Xudong LIU Shulian XIE 2021Journal of Oceanology and Limnology2021,39,4:0
13ARCosmetics:a real-time augmented reality cosmetics try-on system显示文摘A virtual cosmetics try-on system provides a realistic try-on experience for consumers and helps them efficiently choose suitable cosmetics.In this article,we propose a real-time augmented reality virtual cosmetics try-on system for smartphones(ARCosmetics),taking speed,accuracy,and stability into consideration at each step to ensure a better user experience.A novel and very fast face tracking method utilizes the face detection box and the average position of facial landmarks to estimate the faces in continuous frames.A dynamic weight Wing loss is introduced to assign a dynamic weight to every landmark by the estimated error during training.It balances the attention between small,medium,and large range error and thus increases the accuracy and robustness.We also designed a weighted average method to utilize the information of the adjacent frame for landmark refinement,guaranteeing the stability of the generated landmarks.Extensive experiments conducted on a large 106-point facial landmark dataset and the 300-VW dataset demonstrate the superior performance of the proposed method compared to other state-of-the-art methods.We also conducted user satisfaction studies further to verify the efficiency and effectiveness of our ARCosmetics system.Shan AN Jianye CHEN Zhaoqi ZHU Fangru ZHOU Yuxing YANG Yuqing MA Xianglong LIU Haogang ZHU 2023Frontiers of Computer Science2023,17,4:0
14Seasonal co-occurrence patterns of bacteria and eukaryotic phytoplankton and the ecological response in urban aquatic ecosystem显示文摘Microorganisms play a key role in aquatic ecosystems.Recent studies show that keystone taxa in microbial community could change the community structure and function.However,most previous studies focus on abundant taxa but neglected low abundant ones.To clarify the seasonal variation of bacterial and microalgal communities and understand their synergistic adaptation to diff erent environmental factors,we studied the bacterial and eukaryotic phytoplankton communities in Fenhe River that runs through Taiyuan City,central China,and their seasonal co-occurrence patterns using 16S and 18S rDNA sequencing.Results indicate that positive interaction of eukaryotic phytoplankton network was more active than negative one except winter,indicating that the cooperation(symbiotic phenomenon in which phytoplankton are interdependent and mutually benefi cial)among them could improve the adaption of microbial community to the local environmental changes and maintain the stability of microbial network.The main genera that identifi ed as keystone taxa in bacterial network were Salinivibrio and Sphingopyxis of Proteobacteria and they could respond to the variation of nitrite and make use of it,while those that identifi ed as keystone taxa in eukaryotic phytoplankton network were Pseudoschroederia and Nannochloris,and they were more susceptible to nitrate and phosphate.Mychonastes and Cryptomonas were closely related to water temperature.However,the loss of the co-occurrence by environmental factor changes aff ected the stability of network structure.This study provided a reference for analyzing relationship between bacteria and eukaryotic phytoplankton and revealing potential importance of keystone taxa in similar ecological domains in carbon,nitrogen,and phosphorus dynamics.Jing YANG Xiongjie ZHANG Junping LÜ Qi LIU Fangru NAN Xudong LIU Shulian XIE Jia FENG 2022Journal of Oceanology and Limnology2022,40,4:0
15Transcriptome analysis of Porphyridium purpureum under salinities of 0 and 68显示文摘The most prominent biological characteristic of Porphyridium purpureum is their unique extracellular sulfated polysaccharides that plays an important protective role against salt stress.Adaptation to stress is associated with metabolic adjustments.However,the molecular mechanisms underlying such metabolic changes remain elusive.This study presents the fi rst transcriptome profi ling of P.purpureum.A total of 8019 assembled transcripts were identifi ed,annotated,and classifi ed into diff erent biological categories and pathways based on a BLAST analysis against various databases.The in-depth analysis revealed that many of the diff erentially expressed genes in P.purpureum under salinities of 68 and 0 involved polysaccharide metabolism.A comparison of the gene expression levels under diff erent salinities revealed that the polysaccharide synthetic pathway was signifi cantly upregulated under the 68 salinity condition.The increased expression of the FBP,pfkA,CS,pgm,USP,UGP2,galE,and MPI transcripts in the polysaccharide synthetic pathway and the increase in ATP2 and ATP6 transcripts in the energy metabolic pathway revealed the molecular mechanism of high-salt adaptation.This sequencing dataset and analysis could serve as a valuable resource to study the mechanisms involved in abiotic stress tolerance in Rhodophyta.Xudan LU Fangru NAN Jia FENG Junping LÜ Qi LIU Xudong LIU Shulian XIE 2022Journal of Oceanology and Limnology2022,40,4:0
16Heterogeneity Analysis on the Influence of the Supply of Teachers on the Academic Performance of 15-Year-Old Students:Based on PISA 2018 Samples from Four Provinces and Municipalities in China显示文摘The quantitative and qualitative supply of teachers has a significant influence on student academic performance.Based on the samples collected from four provinces and municipalities in China for the Program for International Student Assessment(PISA)2018,this study analyzes the effects of the supply of teachers on the academic performance of 15-year-old students through a hierarchical linear model(HLM)as well as a quantile regression model.The study has found that the shortage of teachers and the proportion of teachers with a master’s degree significantly affect student academic performance,and the supply of teachers with higher degrees has a decreasing marginal benefit on student academic performance;its best marginal benefit on student academic performance is achieved when the proportion of teachers with a master’s degree reaches about 75%.For students in different academic performance subgroups,the marginal benefit of an increase in the proportion of teachers with a master’s degree in schools is higher for“top students”than for“students with learning difficulties.”In terms of the difference between urban and rural areas,the shortage of teachers in rural schools is more prominent than that in urban schools,and teachers with higher degrees tend to cluster in core cities.The marginal benefit of an increase in the proportion of teachers with a master’s degree is higher for improving student academic performance in rural areas.Therefore,it is recommended to design a policy of differentiated compensatory earnings for rural teachers,and efforts should be enhanced to promote programs for supporting high-quality teachers.In addition,the allocation of teachers should follow the principle of“differentiated equity,”and more differentiated teaching strategies should be adopted for students with different academic abilities.YE Fangru 2022Frontiers of Education in China2022,17,2:0
17Effects of phytoplankton community and interaction between environmental variables on nitrogen uptake and transformations in an urban river显示文摘Phytoplankton are not only the main bearer of the nitrogen cycle,but also a key link driving nitrogen cycle.However,most phytoplankton cannot directly use N_(2),and they must uptake nitrogenous nutrients(ammonium,nitrate,and urea)to meet their photosynthesis needs.We examined the uptake characteristics of several nitrogenous substrates using stable isotope technique and identifi ed the potential nitrogen transformations in the Fenhe River.Results revealed that spring phytoplankton community composed of mainly Fragilaria,Ulothrix,Microcystis,and Synedra.Urea can meet the spring partial nitrogen requirement of phytoplankton.The large uptake rate of urea depended on urease,chlorophyll a,and nitrate concentrations as shown in random forest models.Cyanobacteria explained more than 42.8%of the total abundance at all sites in summer.Upstream was dominated by Actinastrum,and Chlorella was relevant in the downstream section.The uptake rates of ammonium were higher than those of nitrate and urea.In addition,the random forest model demonstrated that ammonium,urease,and dissolved oxygen(DO)were the major contributors to the ammonium uptake rates.Ammonium was taken up preferentially in autumn and phytoplankton(Cyclotella,Chlorella,and Pseudanabaena)appeared to be able to respond to changes in nitrogen forms by adjusting their community composition.Structural equation models demonstrated that temperature-induced changes in DO directly affected the transformations of different forms of nitrogen.At the same time,dissolved organic carbon can directly act on nutrients and then indirectly affect enzyme activity.There were great diff erences in the positive and negative effects of different paths in the process of nitrate reduction to nitrite and then reduction to ammonium in time and space.These findings provide a better understanding of the underlying mechanism of nitrogen uptake and the influences of interaction between environmental variables on nitrogen transformations in urban river ecosystems.Jing YANG Haiguang PEI Junping LÜ Qi LIU Fangru NAN Xudong LIU Shulian XIE Jia FENG 2022Journal of Oceanology and Limnology2022,40,3:0
18Pauciramus yunnanensis,gen.et sp.nov.,a novel freshwater red alga from China with proposal of the Ottiales ord.nov.(Nemaliophycidae,Rhodophyta)显示文摘Species of the red algal order Acrochaetiales mostly inhabit marine environments,with only two freshwater taxa Audouinella and Ottia.A new genus and species are described for freshwater red alga Pauciramus yunnanensis from Ailao Mountain,Yunnan,China.It is closely related to Ottia and a new order Ottiales was proposed for these genera.Pauciramus has unique combination of morphological characteristics including the following:plants caespitose and densely pulvinate,slender uniseriate filaments with well-developed rhizoids,rarely branched,cylindrical vegetative cell with a single,ribbon-shaped and parietal chloroplast,reproduction by tetrasporangia,and dense sporangial branchlet only at the upper portion of filaments.Phylogenetic analysis of sequence data from the plastid ribulose-1,5-bisphosphate carboxylase-oxygenase large-subunit(rbc L),small subunit gene of the ribosomal cistron(SSU)and barcode region near the 5′end of the mitochondrial cytochrome oxidase subunit I(COI-5P)indicated that:the new taxon,P.yunnanensis,was in a well-supported clade with Ottia meiospora,and this clade was sister to order Palmariales and Acrochaetiales.To adhere to the principle of monophyly,a new freshwater order Ottiales including Ottia and Pauciramus is proposed.Despite the high sequence interspecific divergences and obvious morphological differences between genera Ottia and Pauciramus,seems impractical to establish a new family for a monospecific genus.Therefore,we temporarily classified Pauciramus into the family Ottiaceae,and made necessary revisions to the description to accommodate this genus.Kunpeng FANG Fangru NAN Jia FENG Junping LÜ Qi LIU Xudong LIU Shulian XIE 2022Journal of Oceanology and Limnology2022,40,3:0
19Gomphonema Ehrenberg species from the Yuntai Mountains,Henan Province,China显示文摘We report on eight species of the freshwater diatom genus Gomphonema from aquatic habitats from the Yuntai Mountains of Henan Province,China.This work represents the first detailed descriptions of the freshwater diatoms from this centrally-located province in China.Of the eight taxa considered,five are new to science and another is given a'cf.'designation.Four of the eight species are similar in morphological features to other,'classical'species,with external areolar occlusions forming C-shaped openings.Another species is astigmate,and has distinct siliceous papillae located marginally on the exterior of the valves;this morphology has not been recognized previously for the genus.Two of the species have internal areolar and stigma occlusions.The diversity of morphological types of species in Gomphonema may relate to the ecosystems,with more diverse ecosystems harboring greater diversity of these morphological groups of Gomphonema.Qi LIU Nini CUI Jia FENG Junping LÜ Fangru NAN Xudong LIU Shulian XIE John Patrick KOCIOLEK 2021Journal of Oceanology and Limnology2021,39,3:0
20Geographical distribution of Batrachospermaceae genera in Asia and its environmental factors显示文摘Batrachospermaceae is an important group of freshwater red algae.Available data of the latitude,longitude,and environmental factors on Batrachospermaceae distribution in Asia were analyzed to understand the geographical distribution of Batrachospermaceae genera in Asia.Statistical analyses,including one-way ANOVA,correlation analysis,stepwise regression analysis,principal component analysis,and linear discriminant analysis were conducted to characterize variation in geographical distribution and growth environment.Results reveal high variation in geographical distribution and growth environment among different Batrachospermaceae genera in Asia.Specifically,correlations between latitude and all environmental factors exclusive of altitude are significant,and longitude is significantly correlated with all environmental factors except for average relative humidity.The geographical distribution and growth environment of different Batrachospermaceae genera significantly differed.Altitude,maximum temperature,average temperature,minimum temperature,average relative humidity,average wind speed,maximum wind speed,and atmospheric pressure all contributed to explaining differences in the geographical distribution of Batrachospermaceae genera.Combining the results of correlation analysis,stepwise regression analysis,and principal component analysis,all environmental factors contributed to the different geographical distribution of Batrachospermum,Paludicola,Sheathia,Sirodotia,and Remainder(the rest),all environmental factors but atmospheric pressure contributed to the different geographical distribution of Kumanoa,and all environmental factors but average wind speed and maximum wind speed contributed to the different geographical distribution of Virescentia.However,the correlation between these significantly related environmental factors and taxa is not necessarily causative,and many other environmental factors,such as temperature,pH,conductivity,shading,current velocity,dissolved oxygen,hardness,substrata types,and nutrients etc.,are likely to have an important impact on the geographical distribution of taxa,which is an important topic for future research.Mingyu QIU Fei WANG Fangru NAN Jia FENG Junping LÜ Qi LIU Xudong LIU Shulian XIE 2023Journal of Oceanology and Limnology2023,41,3:0
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