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Investigation on FBG based optical sensor for pressure and temperature measurement in civil application

中国植物病理学会2019年学术年会

作者：周悦妍 chethana k w t 张玮李兴红吴学宏燕继晔中国农业大学植物保护学院植物病理学系北京市农林科学院植物保护环境保护研究所

樱桃是蔷薇科李属多年生木本植物,在世界温带地区广泛种植。近年来,我国甜樱桃产业发展迅速,据中国园艺学会樱桃分会统计,2016年我国甜樱桃栽培面积为270万亩,其中北京地区为5.8万亩。然而随着甜樱桃在我国种植面积的不断扩大,病害问题... 详细信息

樱桃是蔷薇科李属多年生木本植物,在世界温带地区广泛种植。近年来,我国甜樱桃产业发展迅速,据中国园艺学会樱桃分会统计,2016年我国甜樱桃栽培面积为270万亩,其中北京地区为5.8万亩。然而随着甜樱桃在我国种植面积的不断扩大,病害问题也日益凸显。通过田间调查发现,北京地区樱桃叶斑病发病较重,发病叶片表现紫色或褐色斑点,后期病斑干枯脱落,造成穿孔,病叶变黄,提早脱落。叶斑病会影响叶片的光合作用、削弱树势,降低果实的产量和品质。本研究通过对北京地区甜樱桃叶斑病样品进行病原的分离鉴定,明确引起北京地区樱桃叶斑病的主要病原菌,从而为其田间诊断和绿色防控提供理论依据。采用组织分离法从病样中分离出102个真菌菌株,通过形态学以及多基因整合系统发育分析对病原菌进行初步鉴定,结果表明,分离的真菌来自9个属,病原菌种类分别为Alternaria sp.、Colletotrichum sp.、Stagonosporopsis sp.、Epicoccum sp.、Nothophoma sp.、Botryosphaeria sp.、Nigrospora sp.、Cladosporium sp.和Mycosphaerella sp.,其中Alternaria sp.、Colletotrichum sp.和Stagonosporopis sp.为主要病原菌种类;目前正在进行柯赫氏法则验证和菌株的群体结构分析,相关结果为分析引起我国北京地区樱桃叶斑病的优势病原菌及其致病性差异提供基础。

关键词：樱桃叶斑病鉴定链格孢属刺盘孢属

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Optoelectronics Letters 2024年

作者： Somesh Nandi chethana k t Srinivas Preeta Sharan Department of Electronics and Communications the Oxford College of Engineering Department of Artificial Intelligence and Machine Learning Rashtreeya Vidyalaya College of Engineering 2. Department of Electronics and Communications Jyothy Institute of technology Depart-ment of Electrical Communication Engineering Indian Institute of Science

Optical fiber Bragg grating (FBG) sensors have advanced significantly in the last several years. the use of innovative FBG in temperature and pressure measurement is examined in this study. the benefits of FBGs， such as their compact size， low weight， resilience to corrosion， immunity to electromagnetic interference， distributed sensing， and remote monitoring， have brought attention to the growing research in this field of structural health monitoring of civil infrastructures. In this investigation， a novel model is proposed and implemented using ANSYS workbench and GratingMOD tool. It is shown that the central wavelength of FBG sensors increased from 1 550 nm to 1 556 nm when the temperature rose from 10 ℃ to 40 ℃. In a similar vein， the central wavelength grew from 1 551.166 7 nm to 1 560.056 nm over a pressure range from 100 MPa to 600 MPa. the claimed work will make it possible to calibrate sensors more precisely， guaranteeing accurate data and being useful in monitoring numerous parameters at once， making them beneficial in a variety of applications.

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Bionectria pseudochroleuca,a new host record on Prunus sp.in northern thailand

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Studies in Fungi 2020年第1期5卷 358-367页

作者： Huanraluek N Jayawardena RS Aluthmuhandiram JVS chethana kwt Hyde kD Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Institute of Plant and Environment Protection Beijing Academy of Agriculture and Forestry SciencesBeijing 100097People’s Republic of China kunming Institute of Botany Chinese Academy of ScienceKunming 650201YunnanChina

this study presents the first report of Bionectria pseudochroleuca(Bionectriaceae)on Prunus sp.(Rosaceae)from northern thailand,based on both morphological characteristics and multilocus phylogenetic analyses of inter... 详细信息

关键词： Bionectriaceae Clonostachys Hypocreales Nectria Prunus spp. Sakura

Evolution of freshwater Diaporthomycetidae(Sordariomycetes)provides evidence for five new orders and six new families

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Fungal Diversity 2021年第2期107卷 71-105页

作者： kevin D.Hyde Dan-Feng Bao Sinang Hongsanan k.w.thilini chethana Jing Yang Nakarin Suwannarach Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand Research Centre of Microbial Diversity and Sustainable Ultilization Chiang Mai UniversityChiang Mai 50200Thailand Innovative Institute of Plant Health Zhongkai University of Agriculture and EngineeringHaizhu DistrictGuangzhou 510225PR China Department of Entomology and Plant Pathology Faculty of AgricultureChiang Mai UniversityChiang Mai 50200Thailand College of Agriculture and Biological Sciences Dali UniversityDali 671003YunnanPR China Guangdong Provincial key Laboratory for Plant Epigenetics Shenzhen Key Laboratory of Microbial Genetic EngineeringCollege of Life Science and OceanographyShenzhen UniversityShenzhen 518060China School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Guizhou key Laboratory of Agricultural Biotechnology Guizhou Academy of Agricultural SciencesGuiyang 550006GuizhouChina Department of Biology Faculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand

Cancellidium is a remarkable fungal genus which has been collected from wood submerged in freshwater and has unique conidia that are important in dispersal in running streams.with such a remarkable morphology,one would have expected it to be a distinct family or order.However,due to the dearth of molecular evidence in related taxa,this genus has previ-ously been placed in the order Hypocreales,subclass Hypocreomycetidae of Sordariomycetes.In this study,we made three new collections of this remarkable aquatic genus from streams in China and thailand,isolated them into culture,extracted DNA and carried out multigene phylogenetic analysis and divergence time estimation which placed the genus in Diaporthomycetidae.this is one of the seven subclasses of Sordariomycetes and contains 30 lineages that are only known from freshwater.the subclass is therefore of interest when considering the evolution of freshwater fungi.Several lineages of Diaporthomycetidae are morphologically unique and taxa cluster with strong support,but have weak support at the base of the trees.the phylogenetic and MCC trees generated in this study indicate that Aquapteridospora,Barbatosphaeriaceae,Bullimyces,Cancellidium,Ceratolenta,Conlarium,Phialemoniopsis,Pseudostanjehughesia and Rhamphoriaceae are distinct genera/families that evolved in the family/order time frame.the new orders Barbatosphaeriales(177 MYA),Cancellidiales(137 MYA),Ceratolentales(147 MYA),Conlariales(138 MYA)and Rhamphoriales(133 MYA)and six new families,Aquapteridosporaceae(110 MYA),Cancellidiaceae(137 MYA),Ceratolentaceae(81 MYA),Bullimycetaceae(81 MYA),Phialemoniopsaceae(59 MYA),and Pseudostanjehughesiaceae(111 MYA)are introduced with evidence from phylogenies,divergence estimates and distinct morphologies.Of these families,Aquapteridosporaceae,Cancellidiaceae,Bullimycetaceae,and Pseudostanjehughesiaceae are only known from freshwater.

关键词： 14 new taxa Evolution Freshwater fungi New family New order

Phytochemical composition of Caesalpinia crista extract as potential source for inhibiting cholinesterase and β-amyloid aggregation: Significance to Alzheimer's disease

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Asian Pacific Journal of tropical Biomedicine 2018年第10期8卷 500-512页

作者： kolambe Rajappa chethana Balappa Somappa Sasidhar Mahadeva Naika Rangappa Sangappa keri Centre for Nano and Material Sciences Jain UniversityJain Global Campus Chemical Sciences and technology Division CSIR-National Institute for InterdisciplinaryScience and Technology (CSIR-NIIST) Applied Nutrition Division Defence Food Research Laboratory

Objective: to screen plant extract fractions and elucidate the components present in Caesalpinia crista(C. crista) leaves for cholinergic and anti-amyloidogenic activities for the treatment of Alzheimer's diseases. Methods: this work has been carried out to study the action of C. crista extracts from nonpolar to polar solvents toward inhibition of oxidative stress, cholinergic and amyloidosis. the antioxidant activity was studied using DPPH total antioxidant assay; cholinergic assay by Ellman's method and anti-amyloidogenic assay by thioflavin-t fluorescence and transmission electron microscopy. Results: the quantification of polyphenols was carried out following C. crista methanolic extract(CCMeOH) HPLC fingerprinting, along with LC-MS and elucidated by MS LAMPS database. GC-MS of CCMeOH was screened for potential moieties. In vitro experimental results showed that the CCMe OH was potential extract that exhibited active inhibition of antioxidant property, cholinergic enzymes acetylcholinesterase and butyrylcholinesterase. For anti-amyloidogenic evaluations, among all the extracts, the CCMe OH was found to have the potential toward inhibiting the oligomers, fibrillation of Aβ42 with good defibrillation of amyloid cascading properties. Conclusions: these results are also supported by the presence of polyphenols as the active ingredients. Multi-potent target drug therapy is a promising option in treating the Alzheimer's diseases. Methanolic extract of C. crista shows potential activity against cholinergic enzymes, Aβ42 aggregation with antioxidant activity.

关键词： Alzheimer’s disease Caesalpinia crista Acetylcholinesterase Butyrylcholinesterase β-Amyloid

what are fungal species and how to delineate them?

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Fungal Diversity 2021年第4期109卷 1-25页

作者： k.w.thilini chethana Ishara S.Manawasinghe V.G.Hurdeal Chitrabhanu S.Bhunjun M.A.Appadoo Eleni Gentekaki Olivier Raspé Itthayakorn Promputtha kevin D.Hyde Innovative institute for plant health zhongkai university of agriculture and engineeringguangzhou 510225people’s republic of china center of excellence in fungal research mae fah luang universitychiang rai 57100thailand school of science mae fah luang universitychiang rai 57100thailand department of biology faculty of sciencechiang mai universitychiang mai 50200thailand

this is the opening paper in the special issue of Fungal Diversity,which collates the data on defining species.Defining and recognizing species has long been a controversial issue.Since Darwin’s proposed origin of species,over 30 species criteria have been brought forth and used to define species boundaries.In recent times,phylogenetic analyses based on multiple loci have been extensively used as a method to define species boundaries.However,only a few mycologists are aware that phylogenetic species criteria can mask discordances among fungal groups,leading to inaccurately defined species bounda-ries.In the current review,we discuss species recognition criteria,how and where these criteria can be applied along with their limitations and derived alternatives.In order to delimit fungal species,authors need to take into account not only the phylogenetic and phenotypic coherence,but also the timing of events that lead to fungal speciation and subsequent diversi-fications.Variations in the rate of phenotypic diversifications and convergent fungal evolution make it difficult to establish a universal species recognition criterion.the best practice can only be defined in the context of each fungal group.In this review,we provide a set of guidelines,encouraging an integrative taxonomic approach for species delimitation that can be used to define fungal species boundaries in the future.the other papers in this special issue deal with fungal speciation in Ascomycota,Dothideomycetes,Basidiomycota,basal fungi,lichen-forming fungi,plant pathogenic fungi,and yeasts.

关键词： Allopatry Speciation Species concepts Species criteria Species recognition Sympatry

ten decadal advances in fungal biology leading towards human well‑being

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Fungal Diversity 2022年第5期116卷 547-614页

作者： Ausana Mapook·kevin DHyde kevin D.Hyde khadija Hassan Blondelle Matio kemkuignou Adela Cmokova Frank Surup Eric kuhnert Pathompong Paomephan tian Cheng Sybren de Hoog Yinggai Song Ruvishika S.Jayawardena Abdullah M.S.Al‑Hatmi tokameh Mahmoudi Nadia Ponts Lena Studt‑Reinhold Florence Richard‑Forget k.w.thilini chethana Dulanjalee L.Harishchandra Peter E.Mortimer Huili Li Saisamorm Lumyong worawoot Aiduang Jaturong kumla Nakarin Suwannarach Chitrabhanu S.Bhunjun Feng‑Ming Yu Qi Zhao Doug Schaefer Marc Stadler Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Department Microbial Drugs Helmholtz Centre for Infection Research(HZI)and German Centre for Infection Research(DZIF)Partner Site Hannover‑BraunschweigInhoffenstrasse 738124 BrunswickGermany Institute of Microbiology Technische Universitat BraunschweigSpielmannstrase 738106 BrunswickGermany Laboratory of Fungal Genetics and Metabolism Institute of MicrobiologyCzech Academy of SciencesPragueCzech Republic Centre of Biomolecular Drug Research(BMwZ) Institute for Organic ChemistryLeibniz University HannoverSchneiderberg 3830167 HannoverGermany Department of Biotechnology Faculty of ScienceMahidol University272 Rama VI RoadRatchathewiBangkok 10400Thailand Center of Expertise in Mycology Radboud University Medical Center/Canisius Wilhelmina HospitalNijmegenThe Netherlands key Laboratory of Environmental Pollution Monitoring and Disease Control Guizhou Medical UniversityGuiyangChina Microbiology Parasitology and Pathology Graduate ProgramFederal University of ParanaCuritibaBrazil Department of Dermatology Peking University First HospitalPeking UniversityBeijingChina Natural and Medical Sciences Research Center University of NizwaNizwaOman Department of Biochemistry Erasmus University Medical CenterRotterdamThe Netherlands INRAE UR1264 Mycology and Food Safety(MycSA)33882 Villenave d’OrnonFrance Department of Applied Genetics and Cell Biology Institute of Microbial GeneticsUniversity of Natural Resources and Life SciencesVienna(BOKU)Tulln an der DonauAustria Beijing key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China Institute of Plant ProtectionBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201YunnanChina Centre for Mountai

Fungi are an understudied resource possessing huge potential for developing products that can greatly improve human well-being.In the current paper,we highlight some important discoveries and developments in applied mycology and interdisciplinary Life Science research.these examples concern recently introduced drugs for the treatment of infections and neurological diseases;application of–OMICS techniques and genetic tools in medical mycology and the regulation of mycotoxin production;as well as some highlights of mushroom cultivaton in Asia.Examples for new diagnostic tools in medical mycology and the exploitation of new candidates for therapeutic drugs,are also given.In addition,two entries illustrating the latest developments in the use of fungi for biodegradation and fungal biomaterial production are provided.Some other areas where there have been and/or will be significant developments are also included.It is our hope that this paper will help realise the importance of fungi as a potential industrial resource and see the next two decades bring forward many new fungal and fungus-derived products.

关键词： Biomaterial CRISPR Drug development Morel cultivation Mushroom cultivation Mycotoxin biosynthesis Plastic degradation

Species concepts of Dothideomycetes:classification,phylogenetic inconsistencies and taxonomic standardization

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Fungal Diversity 2021年第4期109卷 283-319页

作者： Dhandevi Pem Rajesh Jeewon kandawatte wedaralalage thilini chethana Sinang Hongsanan Mingkwan Doilom Nakarin Suwannarach kevin David Hyde Innovative Institute of Plant Health Zhongkai University of Agriculture and EngineeringHaizhu DistrictGuangzhou 510225People’s Republic of China Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand Department of Health Sciences Faculty of Medicine and Health SciencesUniversity of MauritiusReduitMauritius Faculty of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Guangdong Provincial key Laboratory for Plant Epigenetics Shenzhen Key Laboratory of Microbial Genetic EngineeringCollege of Life Science and OceanographyShenzhen UniversityShenzhen 518060People’s Republic of China Research Center of Microbial Diversity and Sustainable Utilization Chiang Mai UniversityChiang Mai 50200Thailand

the species is one of the basic units of biological classification.Both species concepts and recognition are essential topics in taxonomic studies and other biological research.In the first part of this review,we briefly discuss the taxonomic history of the class Dothideomycetes.In the second part of the paper,we review four commonly used species concepts,focusing on morphological,ecological,biological and phylogenetic criteria and their applicability in the taxonomy of Dothideomycetes.the application and utility of the four criteria is discussed with examples in the genera Ascochyta,Cercospora and Neofu-sicoccum.Some problems and challenges of studying Dothideomycetes are analyzed and basic guidelines for classifying species under the above criteria are provided.

关键词： Challenges DNA Fungi Morph Phylogeny Species taxonomy

Appressorial interactions with host and their evolution

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Fungal Diversity 2021年第5期110卷 75-107页

作者： k.w.thilini chethana Ruvishika S.Jayawardena Yi-Jyun Chen Sirinapa konta Saowaluck tibpromma Chayanard Phukhamsakda Pranami D.Abeywickrama Milan C.Samarakoon Chanokned Senwanna Ausana Mapook Xia tang Deecksha Gomdola Diana S.Marasinghe Oundhyalah D.Padaruth Abhaya Balasuriya Jianping Xu Saisamorn Lumyong kevin D.Hyde Innovative institute of plant health zhongkai university of agriculture and engineeringguangzhou 510225people’s republic of china center of excellence in fungal research mae fah luang universitychiang rai 57100thailand school of science mae fah luang universitychiang rai 57100thailand key laboratory for plant diversity and biogeography of east asia kunming institute of botanychinese academy of sciencekunming 650201yunnanpeople’s republic of china beijing key laboratory of environment-friendly management on fruit diseases and pests in north china institute of plant and environment protectionbeijing academy of agriculture and forestry sciencesbeijing 100097people’s republic of china department of biology faculty of sciencechiang mai universitychiang mai 50200thailand engineering and research center for southwest biopharmaceutical resource of national education ministry of china gui zhou universitygui yang 550025gui zhoupeople’s republic of china department of plant sciences faculty of agriculturerajarata university of sri lankaanuradhapurasri lanka department of biology mcmaster university1280 main street westhamiltonon l8s 4k1canada center of excellence in microbial diversity and sustainable utilization faculty of sciencechiang mai universitychiang mai 50200thailand academy of science the royal society of thailandbangkok 10300thailand engineering research center of chinese ministry of education for edible and medicinal fungi jilin agricultural universitychangchun city 130118jilin provincepeople’s republic of china department of entomology and plant pathology faculty of agriculturechiang mai universitychiang mai 50200thailand center for mountain futures kunming institute of botanykunming 650201yunnanpeople’s republic of china

Fungi have evolved diverse strategies to acquire nutrients as endophytes,saprobes,symbionts,or pathogens.Appressoria have been intensively studied due to their importance in attaching and breaching the host surface.these specialized infection structures have evolved into various morpho-types:proto-appressoria,hyaline appressoria,melanized(dark)appressoria,and compound appressoria.In this review,we discuss the differences in the formation,differentiation,and function of appres-soria among fungi with diverse life strategies.Using DNA sequence information,LSU,5.8S,SSU and rpb2 gene fragments,we reconstructed the ancestral states for appressorial types in the main phyla of fungi and fungus-like organisms and found that the hyaline appressoria was the most ancestral form.Our analysis estimated proto-appressoria diversification during the Mesozoic period(92-239 million years ago),however,its origin remains inconclusive.Our data suggest that these hyaline appressoria diversified into melanized or compound appressoria,with evidence of adaptive radiation.

关键词： Ancestral characters Evolution Host-recognition Hyaline appressoria Infection process Melanized appressoria Proto-appressoria