Pub Date : 2019-02-06DOI: 10.26757/pjsb.2018b12003
This history piece analyzes colonial-era correspondence and botany publications fascinated with Cycas wadei, a cycad observed only to grow on the island of Culion in the province of Palawan. First spotted in 1902 by U.S. botanist Elmer D. Merrill, the cycad became the preoccupation of U.S. and Filipino scientists alike. It took nearly three and a half decades before the species was introduced in the Philippine Journal of Science in 1936 as C. wadei, named after Herbert W. Wade, head physician of the Culion leper colony established by the U.S. colonial government at the turn of the century. Tracking the history of this species—from its first sighting to its debut before the international botany community—reveals much about the institutional workings of colonial science in the Philippines in the years leading up to the Commonwealth era. It further inspires us to take stock of the ways in which the politics of Latin binomial nomenclature of a species can be historicized across scales of human and institutional interaction. Such an intellectual practice can help us continue to shed light on the history of taxonomy in the Philippines.
这篇历史文章分析了殖民时代的通信和植物学出版物，这些出版物对苏铁着迷，这种苏铁只生长在巴拉望省的库里昂岛上。苏铁于1902年由美国植物学家埃尔默·d·梅里尔(Elmer D. Merrill)首次发现，成为美国和菲律宾科学家关注的焦点。过了将近35年，这个物种才于1936年被《菲律宾科学杂志》(Philippine Journal of Science)以赫伯特·w·韦德(Herbert W. Wade)的名字介绍，他是美国殖民政府在世纪之交建立的库利翁麻风病人殖民地的首席医生。追踪这个物种的历史——从它第一次被发现到在国际植物学社区之前首次亮相——揭示了在英联邦时代之前的几年里菲律宾殖民科学的制度运作。它进一步启发我们对物种的拉丁二元命名法的政治可以在人类和制度互动的尺度上被历史化的方式进行评估。这样的智力实践可以帮助我们继续阐明菲律宾分类学的历史。
{"title":"What’s in a latin name?: Cycas wadei & the politics of nomenclature","authors":"","doi":"10.26757/pjsb.2018b12003","DOIUrl":"https://doi.org/10.26757/pjsb.2018b12003","url":null,"abstract":"This history piece analyzes colonial-era correspondence and botany publications fascinated with Cycas wadei, a cycad observed only to grow on the island of Culion in the province of Palawan. First spotted in 1902 by U.S. botanist Elmer D. Merrill, the cycad became the preoccupation of U.S. and Filipino scientists alike. It took nearly three and a half decades before the species was introduced in the Philippine Journal of Science in 1936 as C. wadei, named after Herbert W. Wade, head physician of the Culion leper colony established by the U.S. colonial government at the turn of the century. Tracking the history of this species—from its first sighting to its debut before the international botany community—reveals much about the institutional workings of colonial science in the Philippines in the years leading up to the Commonwealth era. It further inspires us to take stock of the ways in which the politics of Latin binomial nomenclature of a species can be historicized across scales of human and institutional interaction. Such an intellectual practice can help us continue to shed light on the history of taxonomy in the Philippines.","PeriodicalId":37378,"journal":{"name":"Philippine Journal of Systematic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46146431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.26757/pjsb.2018b12008
Issa Carmina S. Vocal, Teresita R. Perez, Francis S. Magbanua, M. Hernandez
Silago is a municipality in Southern Leyte in which logging for high-quality timber and land clearing for agricultural purposes threaten stream ecosystems. The objective of this study was to assess the response of diatom assemblages in relation to land use. Diatoms and water quality sampling was done at 27 sites on two sampling occasions (June and July 2014). Multiple diatom metrics were calculated to measure the response of diatoms to changes in land use. In all, 135 diatom species distributed to 48 genera were recorded. The results showed that diatom species and their attributes gave similar responses to those obtained in environmental variables. Pollution tolerance index classified all sampling sites as oligo-b-mesosaprobic. Meanwhile, Cymbella richness, percent motile taxa, and percent Achnanthidium minutissimum indicated good water quality in forested areas, distinguishing them from other land use types. Contrary to other studies, species richness was found to increase with greater degrees of disturbance, thus giving unreliable evaluation of water quality. Overall, the study suggests that epilithic diatoms can be applied in biomonitoring of freshwater bodies in the country.
{"title":"The use of epilithic diatom assemblages in assessing land use in Silago, Southern Leyte, Philippines","authors":"Issa Carmina S. Vocal, Teresita R. Perez, Francis S. Magbanua, M. Hernandez","doi":"10.26757/pjsb.2018b12008","DOIUrl":"https://doi.org/10.26757/pjsb.2018b12008","url":null,"abstract":"Silago is a municipality in Southern Leyte in which logging for high-quality timber and land clearing for agricultural purposes threaten stream ecosystems. The objective of this study was to assess the response of diatom assemblages in relation to land use. Diatoms and water quality sampling was done at 27 sites on two sampling occasions (June and July 2014). Multiple diatom metrics were calculated to measure the response of diatoms to changes in land use. In all, 135 diatom species distributed to 48 genera were recorded. The results showed that diatom species and their attributes gave similar responses to those obtained in environmental variables. Pollution tolerance index classified all sampling sites as oligo-b-mesosaprobic. Meanwhile, Cymbella richness, percent motile taxa, and percent Achnanthidium minutissimum indicated good water quality in forested areas, distinguishing them from other land use types. Contrary to other studies, species richness was found to increase with greater degrees of disturbance, thus giving unreliable evaluation of water quality. Overall, the study suggests that epilithic diatoms can be applied in biomonitoring of freshwater bodies in the country.","PeriodicalId":37378,"journal":{"name":"Philippine Journal of Systematic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69121414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We describe herein the morpho-anatomy of the elusive brown alga Rosenvingea nhatrangensis (Scytosiphonaceae, Phaeophyceae) and add this species to the flora of both the Philippines and Malaysia. At present, only two Rosenvingea species (R. intricata and R. orientalis) have been reported from both localities. We also report on the occurrence of R. australis in central Philippines based on molecular phylogenetic data, thus extending its distribution to the northern Pacific. First time account of the morphology of R. australis sporophyte under culture conditions is also provided.
{"title":"New records of Rosenvingea\u0000(Scytosiphonaceae, Phaeophyceae) from the Philippines","authors":"","doi":"10.26757/pjsb2019a13001","DOIUrl":"https://doi.org/10.26757/pjsb2019a13001","url":null,"abstract":"We describe herein the morpho-anatomy of the elusive brown alga Rosenvingea nhatrangensis (Scytosiphonaceae, Phaeophyceae) and add this species to the flora of both the Philippines and Malaysia. At present, only two Rosenvingea species (R. intricata and R. orientalis) have been reported from both localities. We also report on the occurrence of R. australis in central Philippines based on molecular phylogenetic data, thus extending its distribution to the northern Pacific. First time account of the morphology of R. australis sporophyte under culture conditions is also provided.","PeriodicalId":37378,"journal":{"name":"Philippine Journal of Systematic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69121432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.26757/pjsb.2018b12005
Current distributional data on Philippine butterflies suggests that colonization and exchange of species between Luzon and Mindanao are hypothesized to have occurred during the Miocene Epoch (23-5.3 million years ago). Species from the families Pieridae, Hesperiidae, and Zygaenidae were set as an example to explain some disjunction of distribution of some species in the archipelago. The hypothesis will definitely become an interest in the field of biogeographical and phylogenetic studies in the country.
{"title":"The Negros Ark: A Hypothesis\u0000The systematics and biogeography of Rhopalocera (Lepidoptera) in the Philippines","authors":"","doi":"10.26757/pjsb.2018b12005","DOIUrl":"https://doi.org/10.26757/pjsb.2018b12005","url":null,"abstract":"Current distributional data on Philippine butterflies suggests that colonization and exchange of species between Luzon and Mindanao are hypothesized to have occurred during the Miocene Epoch (23-5.3 million years ago). Species from the families Pieridae, Hesperiidae, and Zygaenidae were set as an example to explain some disjunction of distribution of some species in the archipelago. The hypothesis will definitely become an interest in the field of biogeographical and phylogenetic studies in the country.","PeriodicalId":37378,"journal":{"name":"Philippine Journal of Systematic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69121864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-16DOI: 10.26757/pjsb.2018b12001
A study originally intended to update the taxonomy and distribution of calanoid copepods in selected freshwater ecosystems of Central Luzon has led to the discovery of a new record of Phyllodiaptomus Kiefer, 1936 in Candaba Swamp, Pampanga. Since 1979, the only calanoid copepods recorded from this area included Filipinodiaptomus insulanus (Wright S., 1928) and Tropodiaptomus australis Kiefer, 1936. Later studies on calanoid copepods in the region have since been non-existent. Analyses of pertinent key morphological characters revealed that the specimens at hand belonged to Phyllodiaptomus (Ctenodiaptomus) praedictus sulawensis Alekseev & Vaillant, 2013, a freshwater diaptomid calanoid copepod subspecies discovered and known to be endemic only in Indonesia. Provided in this paper are baseline information on the morphological characters of the Philippine members of the subspecies accompanied by line drawings as well as a comparison between the recorded morphological data presented by Alekseev, Haffner, Vaillant & Yusoff (2013) and the current dataset to support the identification of the specimen. The discovery of P. (C.) praedictus sulawensis in the Philippines, which was thought to be endemic in Indonesia, presents a new record of this species in the country and the first such record outside of its country of origin.
{"title":"New record of Phyllodiaptomus (Ctenodiaptomus) praedictus sulawensis Alekseev & Vaillant, 2013 (Hexanauplia, Copepoda, Calanoida, Diaptomidae) in the Philippines (Luzon Island)","authors":"","doi":"10.26757/pjsb.2018b12001","DOIUrl":"https://doi.org/10.26757/pjsb.2018b12001","url":null,"abstract":"A study originally intended to update the taxonomy and distribution of calanoid copepods in selected freshwater ecosystems of Central Luzon has led to the discovery of a new record of Phyllodiaptomus Kiefer, 1936 in Candaba Swamp, Pampanga. Since 1979, the only calanoid copepods recorded from this area included Filipinodiaptomus insulanus (Wright S., 1928) and Tropodiaptomus australis Kiefer, 1936. Later studies on calanoid copepods in the region have since been non-existent. Analyses of pertinent key morphological characters revealed that the specimens at hand belonged to Phyllodiaptomus (Ctenodiaptomus) praedictus sulawensis Alekseev & Vaillant, 2013, a freshwater diaptomid calanoid copepod subspecies discovered and known to be endemic only in Indonesia. Provided in this paper are baseline information on the morphological characters of the Philippine members of the subspecies accompanied by line drawings as well as a comparison between the recorded morphological data presented by Alekseev, Haffner, Vaillant & Yusoff (2013) and the current dataset to support the identification of the specimen. The discovery of P. (C.) praedictus sulawensis in the Philippines, which was thought to be endemic in Indonesia, presents a new record of this species in the country and the first such record outside of its country of origin.","PeriodicalId":37378,"journal":{"name":"Philippine Journal of Systematic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44237242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-10DOI: 10.26757/pjsb.2018b12006
Jane B. Carlos, R. P. Escobin, Jennifer M. Conda, Helen Lewis
Seven charred wood fragments from the archaeological site of Ille in El Nido, Palawan were identified as an undetermined monocot and representatives of the families Caesalpiniaceae, Dipterocarpaceae, and Araucariaceae/Podocarpaceae. Though very few pieces were determined, the results gave a glimpse of the types of woody plants most likely present in the vicinity of Ille, 14,000 to around 4,000 years ago. This report also aims to provide taxonomic identification based on the available literature to serve as baseline information for future use.
{"title":"Identification of archaeological charred wood from Ille site,\u0000El Nido, Palawan, Philippines","authors":"Jane B. Carlos, R. P. Escobin, Jennifer M. Conda, Helen Lewis","doi":"10.26757/pjsb.2018b12006","DOIUrl":"https://doi.org/10.26757/pjsb.2018b12006","url":null,"abstract":"Seven charred wood fragments from the archaeological site of Ille in El Nido, Palawan were identified as an undetermined monocot and representatives of the families Caesalpiniaceae, Dipterocarpaceae, and Araucariaceae/Podocarpaceae. Though very few pieces were determined, the results gave a glimpse of the types of woody plants most likely present in the vicinity of Ille, 14,000 to around 4,000 years ago. This report also aims to provide taxonomic identification based on the available literature to serve as baseline information for future use.","PeriodicalId":37378,"journal":{"name":"Philippine Journal of Systematic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47750780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The study of cestodology has provided an increased understanding of global parasite epidemiology and has contributed to the decrease of human health risks caused by parasite infections. Research trends over past decades have proven that more species have yet to be discovered. An analysis of the trend of cestode studies among vertebrates in the Philippines is hereby presented in aspects of (1) peer-reviewed readership, (2) host taxa studied, (3) geographical distribution, and (3) target parasite species of interest. A survey of 182 publications in primary scientific and grey literature from 1904 to 2017 revealed that most studies were published locally. Likewise, a number of papers favored mammals, particularly humans, as the preferred vertebrate host of study. Looking into geographical distribution, a great number of publications focused on Luzon Island and was concentrated in Manila. Cestode species reported so far in the country belong to order Cyclophyllidea, with Taenia solium and T. saginata as the preferred species to be investigated. Looking into these, we suggest that a shift into the application of molecular systematics and biotechnology would further develop Philippine cestode research, given that the historical trend has focused on parasite discovery, identity, and classification. May this paper be a call to further fill the gaps in what is known about cestodes and other parasites in the Philippines, given the country’s potential for further discoveries.
{"title":"Historical trends among cestode research of vertebrates in the\u0000Philippines","authors":"Vanessa V. Martinez, J. C. Briones","doi":"10.26757/2018b12001","DOIUrl":"https://doi.org/10.26757/2018b12001","url":null,"abstract":"The study of cestodology has provided an increased understanding of global parasite epidemiology and has contributed to the decrease of human health risks caused by parasite infections. Research trends over past decades have proven that more species have yet to be discovered. An analysis of the trend of cestode studies among vertebrates in the Philippines is hereby presented in aspects of (1) peer-reviewed readership, (2) host taxa studied, (3) geographical distribution, and (3) target parasite species of interest. A survey of 182 publications in primary scientific and grey literature from 1904 to 2017 revealed that most studies were published locally. Likewise, a number of papers favored mammals, particularly humans, as the preferred vertebrate host of study. Looking into geographical distribution, a great number of publications focused on Luzon Island and was concentrated in Manila. Cestode species reported so far in the country belong to order Cyclophyllidea, with Taenia solium and T. saginata as the preferred species to be investigated. Looking into these, we suggest that a shift into the application of molecular systematics and biotechnology would further develop Philippine cestode research, given that the historical trend has focused on parasite discovery, identity, and classification. May this paper be a call to further fill the gaps in what is known about cestodes and other parasites in the Philippines, given the country’s potential for further discoveries.","PeriodicalId":37378,"journal":{"name":"Philippine Journal of Systematic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48983378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Bawingan, Ashley Pinas, Roselyn Amoncio, Dave J. Amilao, Roel Beniking, Mae Ann Caliway, Neil Kevin Lagarteja, W. T. Fajardo, J. Hur
This study is a survey of corticolous lichens in the Hundred Islands, Philippines noting their diversity and morpho-anatomical adaptive features. There were only six islands visited due to accessibility and safety reasons. There are at least thirty-two identified species of lichens; majority is crustose dominated by Graphidaceae lichens followed by pyrenolichens in terms of diversity. Morpho-anatomical features considered to be adaptive include crustose and narrow-lobed foliose growth forms, homiomerous thallus organization, thick upper cortex, and presence of pruina in the cortical or medullary layers. KEYWORDS : Hundred islands; epiphytic lichens; adaptive features
{"title":"DIVERSITY AND ADAPTIVE FEATURES OF CORTICOLOUS LICHENS IN THE HUNDRED ISLANDS, PHILIPPINES","authors":"P. Bawingan, Ashley Pinas, Roselyn Amoncio, Dave J. Amilao, Roel Beniking, Mae Ann Caliway, Neil Kevin Lagarteja, W. T. Fajardo, J. Hur","doi":"10.3860/PJSB.V8I0.3338","DOIUrl":"https://doi.org/10.3860/PJSB.V8I0.3338","url":null,"abstract":"This study is a survey of corticolous lichens in the Hundred Islands, Philippines noting their diversity and morpho-anatomical adaptive features. There were only six islands visited due to accessibility and safety reasons. There are at least thirty-two identified species of lichens; majority is crustose dominated by Graphidaceae lichens followed by pyrenolichens in terms of diversity. Morpho-anatomical features considered to be adaptive include crustose and narrow-lobed foliose growth forms, homiomerous thallus organization, thick upper cortex, and presence of pruina in the cortical or medullary layers. KEYWORDS : Hundred islands; epiphytic lichens; adaptive features","PeriodicalId":37378,"journal":{"name":"Philippine Journal of Systematic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70068224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A new tarantula species of the genus Phlogiellus Pocock, 1897, P. kwebaburdeos n. sp. is described and illustrated based on a series of specimens collected inside the Puting Bato Cave 3-4 in Burdeos, Polilio Island, Quezon Province, Philippines. P. kwebaburdeos Barrion-Dupo, Barrion and Rasalan n. sp., a cave-dwelling mygalomorph spider represents the fifth and sixteenth species of Phlogiellus reported in the Philippines and in Southand Southeast Asia, respectively. KEYWORDS: Araneae; cave-dwelling mygalomorph; Polillo Island; tarantula
根据菲律宾奎松省波利利奥岛布尔迪斯Puting Bato 3-4洞穴内收集的一系列标本，描述并说明了Phlogiellus Pocock属狼蛛新种，1897,P. kwebaburdeos n. sp.。P. kwebaburdeos Barrion- dupo, Barrion和Rasalan n. sp.是一种穴居mygalomorph蜘蛛，分别是菲律宾和南亚和东南亚报道的Phlogiellus的第5和第16种。关键词:蜘蛛类;栖息于mygalomorph;Polillo岛;狼蛛
{"title":"A NEW CAVE-DWELLING MYGALOMORPH SPIDER OF THE GENUS PHLOGIELLUS POCOCK, 1897 (ARANEAE: THERAPHOSIDAE: SELENOCOSMIINAE) FROM BURDEOS, POLILLO ISLAND, QUEZON PROVINCE, PHILIPPINES","authors":"A. Barrion-Dupo, A. Barrion, Joseph B. Rasalan","doi":"10.3860/PJSB.V8I0.3326","DOIUrl":"https://doi.org/10.3860/PJSB.V8I0.3326","url":null,"abstract":"A new tarantula species of the genus Phlogiellus Pocock, 1897, P. kwebaburdeos n. sp. is described and illustrated based on a series of specimens collected inside the Puting Bato Cave 3-4 in Burdeos, Polilio Island, Quezon Province, Philippines. P. kwebaburdeos Barrion-Dupo, Barrion and Rasalan n. sp., a cave-dwelling mygalomorph spider represents the fifth and sixteenth species of Phlogiellus reported in the Philippines and in Southand Southeast Asia, respectively. KEYWORDS: Araneae; cave-dwelling mygalomorph; Polillo Island; tarantula","PeriodicalId":37378,"journal":{"name":"Philippine Journal of Systematic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70067769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carlos P. Garcia, J. Abrantes, Lorna Lioanag, A. Macabeo, E. Quinto
The taxonomic classification and unique characteristics of an air-borne actinomycete exhibiting a dark orange pigmentation were determined by polyphasic analysis. The colony appeared as a contaminant in an agar plate culture of the marine luminous bacterium: Vibrio fischeri USTCMS 1026. Subsequent investigation identified the actinomycete contaminant as MP 1066 for Mycobacterium phlei USTCMS 1066 but was later found to have morphological, physiological, biochemical and genotypic characteristics compatible with member species of the genus Gordonia. BLAST comparison of MP 1066 yielded 100% 16S rDNA sequence alignment with Gordonia terrae so the strain was renamed as Gordonia terrae USTCMS 1066. Its antimicrobial susceptibility profile is similar to that of the pathogenic mycobacteria yielding small MICs and large inhibition zones against the antibiotics: ampicillin (AMP), azithromycin (AZT), amoxicillin-clavulanic acid (AUC), ciprofloxacin (CIP), ethambutol (ETHAM), isoniazid (INH), rifampicin (RIF), tetracycline (TET), sulfamethoxazole – trimethoprim (SXT), and streptomycin (STREP). In addition, the crude ethanolic extracts of Acanthella carteri, Alstonia scholaris Lunasia amara Blanco, Momordica charantia, Wrightia antidysenterica, Zingiber officinale and the pure synthetic imidazole: 1,3-bis(4-methylphenyl) imidazolium chloride likewise inhibited strongly the growth of Gordonia terrae USTCMS 1066. Substances that strongly inhibited Gordonia terrae USTCMS 1066 were also observed to be strongly inhibitory to Mycobacterium tuberculosis indicative of its suitability as an initial assay organism for the screening of anti-TB natural products and synthetic compounds most specially for laboratories that are not equipped with Biosafety Level III facilities. KEYWORDS: Gordonia; Mycobacterium; anti-TB; antibiotics; plant extracts
采用多相分析方法确定了一种空气传播的暗橙色放线菌的分类和独特特征。在琼脂平板培养的海洋发光细菌:费氏弧菌(Vibrio fischeri) USTCMS 1026中，菌落作为污染物出现。随后的调查确定该放线菌污染物为真菌分枝杆菌USTCMS 1066的mp1066，但后来发现其形态、生理、生化和基因型特征与Gordonia属成员种一致。mp1066的BLAST比对结果显示，该菌株与Gordonia terrae的16S rDNA序列100%一致，因此该菌株更名为Gordonia terrae USTCMS 1066。它的抗菌敏感性与致病性分枝杆菌相似，对氨苄西林(AMP)、阿奇霉素(AZT)、阿莫西林-克拉维酸(AUC)、环丙沙星(CIP)、乙胺丁醇(ETHAM)、异烟肼(INH)、利福平(RIF)、四环素(TET)、磺胺甲恶唑-甲氧苄啶(SXT)和链霉素(STREP)等抗生素产生小的mic和大的抑制区。此外，刺草、桤木、苦参、抗菌白令木、生姜的粗乙醇提取物和纯合成咪唑:1,3-双(4-甲基苯基)咪唑氯也对地Gordonia terrae USTCMS 1066的生长有较强的抑制作用。强烈抑制地戈登菌USTCMS 1066的物质也被观察到对结核分枝杆菌有强烈的抑制作用，这表明它适合作为筛选抗结核天然产物和合成化合物的初始测定生物，特别是对于没有配备生物安全III级设施的实验室。关键词:Gordonia;分枝杆菌;抗结核;抗生素;植物提取物
{"title":"Gordonia terrae USTCMS 1066: ITS TAXONOMY, ANTIMICROBIALS AND IMIDAZOLIUM SUSCEPTIBILITY AND EVALUATION AS AN INITIAL SCREENING AGENT FOR ANTI-TB COMPOUNDS AND NATURAL PRODUCTS","authors":"Carlos P. Garcia, J. Abrantes, Lorna Lioanag, A. Macabeo, E. Quinto","doi":"10.3860/PJSB.V8I0.3328","DOIUrl":"https://doi.org/10.3860/PJSB.V8I0.3328","url":null,"abstract":"The taxonomic classification and unique characteristics of an air-borne actinomycete exhibiting a dark orange pigmentation were determined by polyphasic analysis. The colony appeared as a contaminant in an agar plate culture of the marine luminous bacterium: Vibrio fischeri USTCMS 1026. Subsequent investigation identified the actinomycete contaminant as MP 1066 for Mycobacterium phlei USTCMS 1066 but was later found to have morphological, physiological, biochemical and genotypic characteristics compatible with member species of the genus Gordonia. BLAST comparison of MP 1066 yielded 100% 16S rDNA sequence alignment with Gordonia terrae so the strain was renamed as Gordonia terrae USTCMS 1066. Its antimicrobial susceptibility profile is similar to that of the pathogenic mycobacteria yielding small MICs and large inhibition zones against the antibiotics: ampicillin (AMP), azithromycin (AZT), amoxicillin-clavulanic acid (AUC), ciprofloxacin (CIP), ethambutol (ETHAM), isoniazid (INH), rifampicin (RIF), tetracycline (TET), sulfamethoxazole – trimethoprim (SXT), and streptomycin (STREP). In addition, the crude ethanolic extracts of Acanthella carteri, Alstonia scholaris Lunasia amara Blanco, Momordica charantia, Wrightia antidysenterica, Zingiber officinale and the pure synthetic imidazole: 1,3-bis(4-methylphenyl) imidazolium chloride likewise inhibited strongly the growth of Gordonia terrae USTCMS 1066. Substances that strongly inhibited Gordonia terrae USTCMS 1066 were also observed to be strongly inhibitory to Mycobacterium tuberculosis indicative of its suitability as an initial assay organism for the screening of anti-TB natural products and synthetic compounds most specially for laboratories that are not equipped with Biosafety Level III facilities. KEYWORDS: Gordonia; Mycobacterium; anti-TB; antibiotics; plant extracts","PeriodicalId":37378,"journal":{"name":"Philippine Journal of Systematic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70067912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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